{"title":"Sales \u0026 Clearance","description":"\u003cdiv\u003e\n  \u003cp\u003e\n    Astronomy sales at David Astro — current markdowns across the catalogue, including open-box units, discontinued models still fully supported, and overstock we would rather see on a telescope than on a shelf. Everything here is held in Canadian stock and carries the same warranty and support as full-price inventory.\n  \u003c\/p\u003e\n  \u003cp\u003e\n    Reduced price does not mean reduced service. We will still calculate your back-focus, confirm compatibility and support the item after the sale, exactly as we would for anything else in the catalogue.\n  \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- more --\u003e\n\u003cdiv\u003e\n  \u003ch2\u003eWhat Goes on Sale and Why\u003c\/h2\u003e\n  \u003cp\u003e\n    Understanding why an item is discounted helps you judge whether it is the right purchase, so we are explicit about the reason wherever we can be.\n  \u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOpen-box and display units:\u003c\/strong\u003e Returned or demonstrated equipment that has been inspected and tested here, typically indistinguishable from new in use.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSuperseded models:\u003c\/strong\u003e Products replaced by a newer revision, often with only minor changes and full parts and warranty support remaining.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOverstock:\u003c\/strong\u003e Items we hold more of than current demand justifies, discounted while the stock lasts.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSeasonal accessories:\u003c\/strong\u003e Dew control, cases and cold-weather items that move seasonally and are reduced outside their peak.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEnd-of-line accessories:\u003c\/strong\u003e Adapters, rings and small parts from lines being retired, which remain perfectly serviceable.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/en-int\/collections\/used-equipment\"\u003eUsed equipment:\u003c\/a\u003e\u003c\/strong\u003e Our separate collection of tested second-hand gear, for buyers comfortable with pre-owned optics and mounts.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n  \u003ch2\u003eWhy Choose David Astro for Discounted Astronomy Gear\u003c\/h2\u003e\n  \u003cp\u003e\n    A discount is only a good deal if the item is right for your setup and stays supported afterwards.\n  \u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCompatibility checked before you commit:\u003c\/strong\u003e We will confirm a sale item actually fits your telescope or mount, because a bargain adapter that does not fit is not a bargain.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCondition stated honestly:\u003c\/strong\u003e Open-box and display items are described as what they are, with any cosmetic marks noted.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFull warranty on new items:\u003c\/strong\u003e Discounted new stock carries the same manufacturer warranty as anything else we sell, handled domestically.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCanadian stock:\u003c\/strong\u003e Sale items ship from Canada without duties or brokerage fees for Canadian buyers.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSame support after the sale:\u003c\/strong\u003e Setup help, spacing calculations and in-house diagnostics apply to discounted purchases too.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n  \u003ch2\u003eAstronomy Sales in Canada — Frequently Asked Questions\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003e\u003cstrong\u003eDo sale items carry a warranty?\u003c\/strong\u003e\u003c\/dt\u003e\n    \u003cdd\u003eNew discounted items carry the full manufacturer warranty. Open-box items are covered as stated on the listing, and we handle any claim domestically rather than routing it internationally.\u003c\/dd\u003e\n    \u003cdt\u003e\u003cstrong\u003eIs an open-box item risky?\u003c\/strong\u003e\u003c\/dt\u003e\n    \u003cdd\u003eNot in our experience. Everything is inspected and functionally tested here before it is relisted, and anything with a cosmetic mark is described. Optics are checked for coating condition and collimation.\u003c\/dd\u003e\n    \u003cdt\u003e\u003cstrong\u003eCan I still get support on a discontinued model?\u003c\/strong\u003e\u003c\/dt\u003e\n    \u003cdd\u003eGenerally yes. We stock spare parts and adapters for many superseded models, and we say on the listing where parts availability is limited.\u003c\/dd\u003e\n    \u003cdt\u003e\u003cstrong\u003eHow long do sale prices last?\u003c\/strong\u003e\u003c\/dt\u003e\n    \u003cdd\u003eUntil the stock is gone. These are finite quantities rather than a recurring promotion, so an item that disappears from this collection has usually sold rather than returned to full price.\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n  \u003ch2\u003eFound something here?\u003c\/h2\u003e\n  \u003cp\u003eAsk us before you order and we will confirm it fits your setup. Canadian stock, full support.\u003c\/p\u003e\n\u003c\/div\u003e","products":[{"product_id":"sky-watcher-classic-150p","title":"Sky-Watcher Classic 150P","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e153 mm (6 in) Newtonian Reflector\u003c\/li\u003e\n\u003cli\u003e1200mm Focal Length (f\/7.8)\u003c\/li\u003e\n\u003cli\u003eParabolic Borosilicate Primary Mirror\u003c\/li\u003e\n\u003cli\u003e20 mm and 12.5 mm Eyepieces Included\u003c\/li\u003e\n\u003cli\u003ePatented Tension Control Handle for Altitude Adjustment\u003c\/li\u003e\n\u003cli\u003e2-inch Focuser with 1.25-inch Adapter\u003c\/li\u003e\n\u003cli\u003e6x30 Optical Finderscope\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSky-Watcher Classic 150P Dobsonian Telescope\u003c\/h2\u003e\n\u003cp\u003eThe Sky-Watcher Classic 150P is a 6-inch Dobsonian featuring a 153 mm parabolic primary mirror with a 1200mm focal length (f\/7.8). It comes with a Dobsonian base with Sky-Watcher's tension control handle, a 2-inch \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e with a 1.25-inch adapter, and two eyepieces that provide 60x and 96x magnification right out of the box. The optical tube weighs 5.78 kg (12.7 lb).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe Classic 150P: A 153mm Dobsonian for Visual Astronomy\u003c\/h3\u003e\n\u003cp\u003eJohn Dobson popularized this simple \u003ca href=\"\/en-int\/collections\/alt-azimuth-mounts\"\u003ealt-azimuth mount\u003c\/a\u003e for \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonian reflectors\u003c\/a\u003e in the late 1970s. In its simplest form it is a box that lets the tube pivot in altitude, while the box swivels on a base in azimuth.\u003c\/p\u003e\n\u003cp\u003eIt is a good choice for first-time buyers. You point the telescope by hand. You swivel the tube in azimuth (left and right) and tilt it in altitude (up and down) to navigate the night sky. Because the Earth rotates, you nudge the tube in both axes to keep an object in the field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e153mm Paraboloidal Optics and f\/7.8 Focal Ratio\u003c\/h3\u003e\n\u003cp\u003eAt the core of the Classic 150P is its 153 mm paraboloidal primary mirror. Sky-Watcher uses a paraboloidal primary mirror to eliminate spherical aberration.\u003c\/p\u003e\n\u003cp\u003eThe 1200mm focal length gives f\/7.8. The 34mm secondary mirror sits on a four-arm bracket with fine 0.5 mm supports, which reduce diffraction spikes and light loss.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e60x and 96x Magnification with Included Eyepieces\u003c\/h3\u003e\n\u003cp\u003eMagnification is the telescope's focal length divided by the eyepiece focal length. The two included 1.25-inch eyepieces give:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e20 mm eyepiece: 1200 \/ 20 = 60x.\u003c\/li\u003e\n\u003cli\u003e12.5 mm eyepiece: 1200 \/ 12.5 = 96x.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA general rule for usable magnification is about 2x per millimeter of aperture under good seeing conditions. The highest practical power is 306x. Start at a lower magnification with its wider field, then increase it once you have found your target. An optional \u003ca href=\"\/en-int\/collections\/barlows-and-extenders\"\u003eBarlow lens\u003c\/a\u003e goes between the focuser and the eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe Dobsonian Base and Patented Tension Control Handle\u003c\/h3\u003e\n\u003cp\u003eA traditional Dobsonian mount relies on friction to hold the optical tube in position. Too much friction makes it difficult to move the telescope smoothly, while too little allows the tube to drift, especially when changing heavy eyepieces. Sky-Watcher's answer is its patented tension control handle.\u003c\/p\u003e\n\u003cp\u003eIt adds or reduces friction between the tube and the side board, so the tube does not need to be balanced to stay in position. Set it so the tube moves easily when nudged but stays put when you let go, or tighten it fully to lock it. Re-adjust it when you add or remove accessories. The manual recommends installing the tension handle on the same side as the focuser for convenience and leaving the handle on the opposite side slightly loose to give the tension handle full control.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe 44.5-inch Optical Tube and Included Accessories\u003c\/h3\u003e\n\u003cp\u003eThe optical tube is 44.5 inches long with a 7.125-inch outer diameter. It comes with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-inch Focuser:\u003c\/strong\u003e A 2-inch focuser with a 2\" to 1.25\" adapter, allowing you to use both the included 1.25-inch eyepieces and larger 2-inch wide-field eyepieces (sold separately).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6x30 Finderscope:\u003c\/strong\u003e To help you locate celestial objects, a 6x30 optical finderscope is included. This small, fixed-magnification scope offers a much wider field of view than the main telescope. Once aligned, an object centered on its crosshairs is in the main eyepiece.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDust Cap:\u003c\/strong\u003e Covers the tube when not in use; remove it before viewing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAssembling the 5.78 kg OTA and Dobsonian Base\u003c\/h3\u003e\n\u003cp\u003eAssemble the telescope in daylight in a large, open area. The Dobsonian base arrives flat-packed and is assembled using the included screws and hardware. The process involves connecting the side boards (A1, A2) to board B, with the Sky-Watcher logos outside, then attaching this assembly to the round top board (C). A Teflon pad and a central tube are placed between this assembly and the bottom board (D), and a central bolt secures everything together. Do not over-tighten this bolt, so the base can swivel freely.\u003c\/p\u003e\n\u003cp\u003eOnce the base is built, four cylindrical \u003ca href=\"\/en-int\/collections\/saddles-and-clamps\"\u003esaddle\u003c\/a\u003e side bearings are attached to the inside of the sideboards. The 5.78 kg optical tube assembly then rests on these bearings. The tension control handle is installed on the focuser side, and an accessory tray mounts to the front board. Screw caps cover the visible screws. Finally, move the rubber O-ring from the finder bracket to the groove on the \u003ca href=\"\/en-int\/collections\/finder-scopes\"\u003efinder\u003c\/a\u003e tube and slide the bracket into its slot.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAligning the 6x30 Finder and Focusing Your View\u003c\/h3\u003e\n\u003cp\u003eBefore you can easily find objects, you must align the 6x30 finderscope with the main telescope. This is best done in daylight. Point the main telescope at a distant, stationary object at least 500 yards away and center it in the eyepiece. Then, look through the finderscope. Using the two small alignment screws on the finder bracket, adjust the finder until its crosshairs are also centered on the exact same object. These screws work against a spring-loaded knob.\u003c\/p\u003e\n\u003cp\u003eOnce the finder is aligned, achieving focus is done by turning the focus knobs on the focuser. Slowly turn the knobs until the image in the eyepiece is sharp. Refocus when you change an eyepiece or add or remove a Barlow lens. The manual adds that fine refocusing over time is normal, due to temperature changes and flexure, especially before the telescope reaches outside temperature.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBest Practices for Observing with the 153mm Aperture\u003c\/h3\u003e\n\u003cp\u003eThe manual's observing tips:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSite Selection:\u003c\/strong\u003e Away from city lights and upwind of air pollution, as high as possible, with a dark, unobstructed horizon. The darkest sky is usually at the zenith. Avoid observing through a window or over pavement that radiates stored heat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCool-Down Time:\u003c\/strong\u003e Your telescope needs time to acclimate to the outdoor temperature. Telescopes need at least 10 to 30 minutes to cool to outside air temperature, longer with a big temperature difference, to minimize tube currents.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDark Adaptation:\u003c\/strong\u003e Expose your eyes to nothing but red light for 30 minutes before observing. Observe with both eyes open, and use averted vision on faint objects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeeing and Transparency:\u003c\/strong\u003e \"Seeing\" refers to the stability of the atmosphere. On nights of good seeing, stars will appear as steady points of light without twinkling. \"Transparency\" refers to the clarity of the sky. The best nights will have both good seeing and high transparency (an inky black sky).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCollimating the f\/7.8 Newtonian Optics\u003c\/h3\u003e\n\u003cp\u003eCollimation aligns the mirrors so they deliver properly focused light to the eyepiece. To test it, center a star and move the focuser so the image is slightly out of focus: in good seeing, rings symmetrical about the central disc mean the optics are aligned.\u003c\/p\u003e\n\u003cp\u003eIf the rings are lopsided, adjustment is needed. The secondary mirror is adjusted using a central bolt and three small surrounding screws. The primary mirror is adjusted using three adjusting screws at the back of the optical tube, which are held in place by three locking screws. The manual walks through both mirrors, and suggests a collimating cap made from a 35mm film canister with a pinhole in the lid to keep your eye centered in the focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCare and Transport\u003c\/h3\u003e\n\u003cp\u003eThe tube (5.78 kg \/ 12.7 lb, 44.5\" long) lifts off the Dobsonian base, so they move as two pieces.\u003c\/p\u003e\n\u003cp\u003eReplace the dust cap whenever the telescope is not in use. Do not clean the mirror unless you are familiar with optical surfaces; clean the finderscope and eyepieces only with lens paper.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSolar Safety for the 153mm Aperture\u003c\/h3\u003e\n\u003cp\u003eWarning:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNever use the telescope to look directly at the Sun: permanent eye damage will result. Use a proper \u003ca href=\"\/en-int\/collections\/solar-filters\"\u003esolar filter\u003c\/a\u003e for viewing the Sun.\u003c\/li\u003e\n\u003cli\u003eNever use an eyepiece-type solar filter.\u003c\/li\u003e\n\u003cli\u003eNever use the telescope to project sunlight onto another surface: the internal heat build-up will damage the optical elements.\u003c\/li\u003e\n\u003cli\u003eWhen observing the Sun, place a dust cap over the finderscope to protect it from exposure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat magnification do the Sky-Watcher Classic 150P's included eyepieces provide?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e60x with the 20 mm eyepiece and 96x with the 12.5 mm. The highest practical power is 306x.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Classic 150P a good telescope for a beginner?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt is recommended for first-time buyers. The Dobsonian mount points by hand, and the tension control handle keeps the tube where you leave it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I keep an object in view?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Dobsonian mount does not track, so nudge the tube in both azimuth and altitude as the Earth rotates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow portable is the Sky-Watcher Classic 150P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe tube (5.78 kg \/ 12.7 lb, 44.5\" long) lifts off the Dobsonian base, so they move as two pieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use 2-inch eyepieces with the Classic 150P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The telescope is equipped with a 2-inch focuser that can accept 2-inch eyepieces (sold separately). A 2-inch to 1.25-inch adapter is also included, so you can use the supplied 1.25-inch eyepieces or any other standard 1.25-inch accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill I need to collimate the Sky-Watcher Classic 150P, and is it difficult?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNewtonians need occasional collimation. Test on a slightly defocused star: symmetrical rings mean it is aligned. The manual explains adjusting the secondary's central bolt and three small screws, and the primary's three adjusting screws with their three locking screws.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the Tension Control Handle on the Classic 150P do?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt adds or reduces friction between the tube and the side board so the tube stays in position without balancing. Set it so the tube moves when nudged but holds still, re-adjust it when you change accessories, or tighten it fully to lock the tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 6x30 finderscope help me find objects?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe finderscope is a small telescope with a wide field of view. Once you align it with the main telescope, any object you center in the finderscope's crosshairs will be visible in the main eyepiece. The manual recommends aligning it in daylight on a distant object (at least 500 yards away) for the best accuracy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is a parabolic mirror important in the Classic 150P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSky-Watcher uses a paraboloidal primary mirror to eliminate spherical aberration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the mount track the sky?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. You move the tube by hand in azimuth and altitude to follow an object.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow long should I let the Classic 150P cool down before observing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe manual says telescopes need at least 10 to 30 minutes to cool to outside air temperature, and longer with a big temperature difference, to minimize tube currents.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I observe the Sun with the Classic 150P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eOnly with a proper solar filter. Never look directly at the Sun through the telescope, never use an eyepiece-type solar filter, never project sunlight with it, and cap the finderscope when observing the Sun.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eNewtonian with parabolic primary mirror\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Aperture\u003c\/td\u003e\n\u003ctd\u003e153 mm (6 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e1200mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/7.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMirror Coatings\u003c\/td\u003e\n\u003ctd\u003eRadiant Aluminum Quartz (RAQ)™ with 94% reflectivity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGlass Type\u003c\/td\u003e\n\u003ctd\u003eBorosilicate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003e2-inch with 1.25-inch adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecondary Diameter\u003c\/td\u003e\n\u003ctd\u003e34mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Eyepieces\u003c\/td\u003e\n\u003ctd\u003e20 mm and 12.5 mm (1.25\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification with Eyepieces\u003c\/td\u003e\n\u003ctd\u003e60x and 96x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Finder\u003c\/td\u003e\n\u003ctd\u003e6x30 Optical Finder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Length\u003c\/td\u003e\n\u003ctd\u003e44.5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Outer Diameter\u003c\/td\u003e\n\u003ctd\u003e7.125\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e050234116008\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Weight\u003c\/td\u003e\n\u003ctd\u003e5.78 kg (12.7 lb) (skywatcher.com)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecondary Support\u003c\/td\u003e\n\u003ctd\u003eFour-arm spider, 0.5 mm thick vanes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAltitude Control\u003c\/td\u003e\n\u003ctd\u003eTension control handle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount\u003c\/td\u003e\n\u003ctd\u003eYes, Dobsonian rocker base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eClassic 150P Optical Tube Assembly\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDobsonian Base with Tension Control Handle\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e6x30 Finderscope\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e20 mm Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e12.5 mm Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2\" to 1.25\" Eyepiece Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_Classic_Dobsonian_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Classic Dobsonian Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967190724893,"sku":"SW-S11600","price":620.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher-Classic-150P-S11600-1__50712.1594170775.1280.1280.jpg?v=1684338438"},{"product_id":"sky-watcher-classic-200p","title":"Sky-Watcher Classic 200P","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e203mm (8\") Primary Aperture\u003c\/li\u003e\n\u003cli\u003e1200mm Focal Length\u003c\/li\u003e\n\u003cli\u003ef\/5.9 Focal Ratio\u003c\/li\u003e\n\u003cli\u003eParabolic Primary Mirror\u003c\/li\u003e\n\u003cli\u003ePatented Tension Control Handle\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSky-Watcher Classic 200P Dobsonian Telescope - 8\"\u003c\/h2\u003e\n\u003cp\u003eThe Sky-Watcher Classic 200P is an 8-inch \u003ca href=\"\/en-int\/collections\/dobsonians\"\u003eDobsonian telescope\u003c\/a\u003e: a 203mm \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonian\u003c\/a\u003e with a paraboloidal primary mirror and a 1200mm focal length (f\/5.9) on an \u003ca href=\"\/en-int\/collections\/alt-azimuth-mounts\"\u003ealt-azimuth\u003c\/a\u003e Dobsonian base with Sky-Watcher's patented tension control handle. The included 20mm and 12.5mm eyepieces give 60x and 96x.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSky-Watcher Classic 200P: An 8-inch f\/5.9 Dobsonian\u003c\/h3\u003e\n\u003cp\u003eJohn Dobson popularized this simple alt-azimuth mount for Newtonian reflectors in the late 1970s. You swivel the tube in azimuth and tilt it in altitude; because the Earth rotates, you nudge it in both axes to keep an object in the field.\u003c\/p\u003e\n\u003cp\u003eTraditional Dobsonians are recommended for first-time buyers. The mount points by hand and needs no power.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eParaboloidal Mirror and Secondary Support\u003c\/h3\u003e\n\u003cp\u003eA paraboloidal primary mirror eliminates spherical aberration, with a four-arm secondary mirror bracket on fine 0.5 mm supports to reduce diffraction. The highest practical power is 406x.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary mirror:\u003c\/strong\u003e paraboloidal, 203mm, 1200mm focal length (f\/5.9).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary mirror:\u003c\/strong\u003e 47 mm, on a four-arm bracket with 0.5 mm supports.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e60x and 96x Magnification with 2 Included Eyepieces\u003c\/h3\u003e\n\u003cp\u003eMagnification is the telescope's focal length divided by the eyepiece focal length: the included 20 mm and 12.5 mm 1.25-inch eyepieces give 60x and 96x. Sky-Watcher's rule of thumb for usable magnification is about 2x per mm of aperture in good conditions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnification Formula:\u003c\/strong\u003e Telescope Focal Length \/ Eyepiece Focal Length.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 mm eyepiece:\u003c\/strong\u003e 1200 \/ 20 = 60x.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12.5 mm eyepiece:\u003c\/strong\u003e 1200 \/ 12.5 = 96x.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe 2-Piece Dobsonian Base with Patented Tension Control\u003c\/h3\u003e\n\u003cp\u003eA Dobsonian mount holds the tube by friction. Sky-Watcher's patented tension control handle adds or reduces friction between the tube and the side board, so the tube does not need to be balanced to stay in position.\u003c\/p\u003e\n\u003cp\u003eLoosen or tighten the handle to add just enough friction for the tube to move easily when nudged but stay in position when not. Re-adjust it when you add or remove accessories. Install it on the same side as the \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e, and leave the handle on the other side slightly loose. Tightened fully, it locks the tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFocuser, Eyepieces and Finder\u003c\/h3\u003e\n\u003cp\u003eThe 2-inch focuser takes 2-inch eyepieces, and a 1.25-inch adapter is included for the supplied eyepieces.\u003c\/p\u003e\n\u003cp\u003eThe finderscope mounts on the tube and has a wider field than the main telescope, for centering a target. Focusing: turn the focus knobs until the image is sharp, and refocus after changing an eyepiece or as the temperature changes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAssembly Guide: Building the 2-Piece Base for the 200P\u003c\/h3\u003e\n\u003cp\u003eThe flat-packed base is assembled once, ideally in daylight and in a large, open area. Connect side boards A1 and A2 to board B with the Sky-Watcher logos outside, then attach this to the round top board (C).\u003c\/p\u003e\n\u003cp\u003eThe Teflon pad goes between the top board and the round bottom board (D), joined by a central bolt; do not over-tighten it. Then fit the four cylindrical \u003ca href=\"\/en-int\/collections\/saddles-and-clamps\"\u003esaddle\u003c\/a\u003e side bearings, accessory tray and carrying handle. The tube's side bearings rest on the saddle bearings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAligning the Finderscope\u003c\/h3\u003e\n\u003cp\u003eBefore you can use the finderscope to locate objects, it must be aligned with the main telescope. This is best done during the day. First, insert an eyepiece into the main telescope and point it at a distant, stationary object at least 500 yards (or meters) away. Center the object in the main eyepiece.\u003c\/p\u003e\n\u003cp\u003eNext, look through the finderscope. Use the two small alignment screws on the finder bracket to move the finderscope's crosshairs until they are also centered on the exact same object. These screws work against a spring-loaded knob. Once the object is centered in both the finderscope and the main eyepiece, the alignment is complete. Objects you center in the \u003ca href=\"\/en-int\/collections\/finder-scopes\"\u003efinder\u003c\/a\u003e will now appear in the field of view of your main telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCool-Down and Observing Site\u003c\/h3\u003e\n\u003cp\u003eTelescopes need at least 10 to 30 minutes to cool to outside air temperature, longer with a big temperature difference or larger optics. Cooling minimizes heat-wave distortion inside the tube (tube currents).\u003c\/p\u003e\n\u003cp\u003eChoose a site away from city lights, as high as possible, with a dark, unobstructed horizon; the darkest sky is usually at the zenith. Expose your eyes to nothing but red light for 30 minutes before observing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCollimation and Care\u003c\/h3\u003e\n\u003cp\u003eCollimation aligns the telescope's mirrors. Check it on a slightly defocused star: symmetrical rings around the central disc mean the optics are aligned.\u003c\/p\u003e\n\u003cp\u003eIf the rings are lopsided, adjustment is needed. The secondary mirror is adjusted using the central bolt and three small surrounding screws on the spider hub. The primary mirror is adjusted using three adjusting screws on the back of the telescope, which are secured by three locking screws. The manual walks through both mirrors. When not in use, always replace the dust cap to keep the optics clean.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eTube and Base\u003c\/h3\u003e\n\u003cp\u003eThe tube weighs 11 kg (24.3 lb), is 112 cm (44 in) long and 20.5 cm in diameter, and lifts off the Dobsonian base, so they move as two pieces.\u003c\/p\u003e\n\u003cp\u003eReplace the dust cap whenever the telescope is not in use. Do not clean the mirror unless you are familiar with optical surfaces; clean the finderscope and eyepieces only with lens paper.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSolar Safety\u003c\/h3\u003e\n\u003cp\u003eLooking directly at the Sun through the telescope will cause permanent eye damage. Use a proper \u003ca href=\"\/en-int\/collections\/solar-filters\"\u003esolar filter\u003c\/a\u003e for viewing the Sun.\u003c\/p\u003e\n\u003cp\u003eNever use an eyepiece-type solar filter. Never use the telescope to project sunlight onto another surface: the internal heat build-up will damage the optical elements. When observing the Sun, place a dust cap over the finderscope to protect it from exposure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Sky-Watcher Classic 200P a good telescope for a beginner?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Dobsonian mount points by hand, with no electronics, and the tension control handle keeps the tube where you leave it. Traditional Dobsonians like this one are recommended for first-time buyers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow easy is the Sky-Watcher Classic 200P to transport and set up?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 11 kg (24.3 lb) tube lifts off the Dobsonian base, so they move as two pieces. The base comes flat-packed and is assembled once with the supplied hardware.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat magnification do the included eyepieces give?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e60x with the 20 mm eyepiece and 96x with the 12.5 mm. The highest practical power is 406x.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need to collimate the Sky-Watcher Classic 200P, and is it hard?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNewtonians need occasional collimation. Test on a slightly defocused star: symmetrical rings mean it is aligned. The manual explains adjusting the secondary's central bolt and three small screws, and the primary's three adjusting screws with their three locking screws.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Tension Control Handle on the Classic 200P work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt adds or reduces friction between the tube and the side board so the tube stays in position without balancing. Set it so the tube moves when nudged but holds still, re-adjust it when you change accessories, or tighten it fully to lock the tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I add a Barlow lens?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. An optional \u003ca href=\"\/en-int\/collections\/barlows-and-extenders\"\u003eBarlow lens\u003c\/a\u003e goes between the focuser and the eyepiece to increase magnification; refocus after adding or removing it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I keep an object in view?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Dobsonian mount does not track, so nudge the tube in both azimuth and altitude as the Earth rotates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow long does the Classic 200P need to cool down?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAt least 10 to 30 minutes to reach outside air temperature, longer with a big temperature difference or larger optics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use 2-inch eyepieces with the Classic 200P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The 2-inch focuser takes 2-inch eyepieces (sold separately), and the included 1.25-inch adapter takes the supplied eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I align the finderscope on the Classic 200P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAlignment is best done in daylight. Point the main telescope at a distant, fixed object (at least 500 yards away) and center it in the eyepiece. Then, while looking through the finderscope, use its two adjustment screws to move the crosshairs until they are centered on the same object. Once aligned, anything you center in the finderscope will be visible in the main eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I do astrophotography with the Sky-Watcher Classic 200P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSky-Watcher's material does not cover imaging with it. The Dobsonian mount does not track, so objects drift out of the field as the Earth rotates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I observe the Sun with the Classic 200P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eOnly with a proper solar filter. Never look directly at the Sun through the telescope, never use an eyepiece-type solar filter, never project sunlight with it, and cap the finderscope when observing the Sun.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e050234116107\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eNewtonian with parabolic primary mirror\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Aperture\u003c\/td\u003e\n\u003ctd\u003e203mm (8\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e1200mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/5.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMirror Coatings\u003c\/td\u003e\n\u003ctd\u003eRadiant™ Aluminum Quartz (RAQ) with 94% reflectivity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGlass Type\u003c\/td\u003e\n\u003ctd\u003eBorosilicate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecondary Mirror Diameter\u003c\/td\u003e\n\u003ctd\u003e47 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003e2-inch with 1.25-inch adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Length\u003c\/td\u003e\n\u003ctd\u003e112 cm (44 in), tube diameter 20.5 cm (skywatcher.com)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Weight (with accessories)\u003c\/td\u003e\n\u003ctd\u003e11 kg (24.3 lb) tube (skywatcher.com)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAltitude Control\u003c\/td\u003e\n\u003ctd\u003eTension control handle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecondary Support\u003c\/td\u003e\n\u003ctd\u003eFour-arm spider, 0.5 mm thick vanes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount\u003c\/td\u003e\n\u003ctd\u003eYes, Dobsonian rocker base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eClassic 200P Optical Tube Assembly\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDobsonian Base with Tension Control Handle\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e9x50 Finderscope\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e20 mm Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e12.5 mm Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2\" Eyepiece Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1.25\" Eyepiece Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_Classic_Dobsonian_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Classic Dobsonian Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_Newtonian_Dobsonian_Collimation_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Newtonian Dobsonian Collimation Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967190757661,"sku":"SW-S11610","price":870.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher-Classic-200P-S11610-1__21568.1594170776.1280.1280.jpg?v=1684338450"},{"product_id":"sky-watcher-classic-250p","title":"Sky-Watcher Classic 250P","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e254mm (10\") Primary Aperture\u003c\/li\u003e\n\u003cli\u003e1200mm Focal Length (f\/4.7)\u003c\/li\u003e\n\u003cli\u003e2\" Crayford Focuser with 1.25\" Adapter\u003c\/li\u003e\n\u003cli\u003eDobsonian Base with Tension Control Handle\u003c\/li\u003e\n\u003cli\u003eIncludes 20mm and 12.5mm Eyepieces\u003c\/li\u003e\n\u003cli\u003e9x50 Finderscope\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSky-Watcher Classic 250P\u003c\/h2\u003e\n\u003cp\u003eThe Sky-Watcher Classic 250P is a 10-inch \u003ca href=\"\/en-int\/collections\/dobsonians\"\u003eDobsonian telescope\u003c\/a\u003e: a 254mm \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonian\u003c\/a\u003e with a 1200mm focal length (f\/4.7) on an \u003ca href=\"\/en-int\/collections\/alt-azimuth-mounts\"\u003ealt-azimuth\u003c\/a\u003e Dobsonian base with Sky-Watcher's tension control handle. The tube has a 2\" Crayford \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e, and the 20mm and 12.5mm eyepieces give 60x and 96x.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe Classic 250P: A 254mm Dobsonian for Visual Astronomy\u003c\/h3\u003e\n\u003cp\u003eJohn Dobson popularized this simple alt-azimuth mount for Newtonian reflectors. You swivel the tube in azimuth and tilt it in altitude; because the Earth rotates, you nudge it in both axes to keep an object in view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e254mm Optics at f\/4.7\u003c\/h3\u003e\n\u003cp\u003eThe Classic Dobsonian manual covers this 254mm\/1200mm model. It has a 64mm secondary mirror, a 45\" tube 11.375\" in outer diameter and weighs 28 lb with accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIncluded Eyepieces: 60x and 96x Magnification Out of the Box\u003c\/h3\u003e\n\u003cp\u003eMagnification is the telescope's focal length divided by the eyepiece focal length. The two included 1.25\" eyepieces give:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e20mm eyepiece:\u003c\/strong\u003e 1200 \/ 20 = 60x.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12.5mm eyepiece:\u003c\/strong\u003e 1200 \/ 12.5 = 96x.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAn optional \u003ca href=\"\/en-int\/collections\/barlows-and-extenders\"\u003eBarlow lens\u003c\/a\u003e goes between the focuser and the eyepiece to increase magnification. Sky-Watcher's rule of thumb for usable magnification is about 2x per mm of aperture in good conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe Dobsonian Base: Pointing with a Tension Control Handle\u003c\/h3\u003e\n\u003cp\u003eThe mount moves in altitude and azimuth. You point the tube by hand and nudge it in both axes to keep an object centered as the Earth rotates.\u003c\/p\u003e\n\u003cp\u003eSky-Watcher's patented tension control handle adds just enough friction for the tube to move easily when nudged but stay in position when not. Re-adjust it when you add or remove accessories. Install it on the same side as the focuser and leave the handle on the other side slightly loose. Do not over-tighten the handles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFocuser, Finder and Adapters\u003c\/h3\u003e\n\u003cp\u003eThe 2\" Crayford focuser comes with 2\" and 1.25\" eyepiece adapters. Turn the focus knobs until the image is sharp. Refocus after changing an eyepiece or adding a Barlow lens, and as the temperature changes, which happens more often with short focal ratio telescopes before they reach outside temperature.\u003c\/p\u003e\n\u003cp\u003eThe 9x50 finderscope has a wider field than the main telescope. Once aligned, an object centered on its crosshairs is in the main eyepiece. Slide the finder bracket into its slot after moving the rubber O-ring to the groove on the \u003ca href=\"\/en-int\/collections\/finder-scopes\"\u003efinder\u003c\/a\u003e tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAssembly\u003c\/h3\u003e\n\u003cp\u003eThe flat-packed base is assembled with the screws, Teflon pad and four cylindrical \u003ca href=\"\/en-int\/collections\/saddles-and-clamps\"\u003esaddle\u003c\/a\u003e side bearings supplied; assemble it in daylight in a large open area. Connect the side boards to the front board, then attach them to the two round boards with the central bolt and Teflon pad. Do not over-tighten the central bolt.\u003c\/p\u003e\n\u003cp\u003eThen fit the accessory tray, the carrying handle and the four saddle side bearings. The tube's side bearings rest on the saddle bearings; fit the tension control handle on the focuser side.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAligning the Finderscope\u003c\/h3\u003e\n\u003cp\u003eAlign the finderscope in daylight:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAim the telescope:\u003c\/strong\u003e point it at a distant object at least 500 yards away and center it in the low-power eyepiece.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjust the finder:\u003c\/strong\u003e use the two alignment screws on the bracket, which work against a spring-loaded knob, to center the crosshairs on the same object.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCool-Down and Observing Site\u003c\/h3\u003e\n\u003cp\u003eTelescopes need at least 10 to 30 minutes to cool to outside air temperature, longer with a big temperature difference or larger optics. Cooling minimizes heat-wave distortion inside the tube (tube currents).\u003c\/p\u003e\n\u003cp\u003eChoose a site away from city lights, as high as possible, with a dark, unobstructed horizon; the darkest sky is usually at the zenith. Expose your eyes to nothing but red light for 30 minutes before observing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCollimation\u003c\/h3\u003e\n\u003cp\u003eNewtonians need occasional collimation. Check it on a slightly defocused star: symmetrical rings around the central disc mean the optics are aligned.\u003c\/p\u003e\n\u003cp\u003eThe process involves two adjustments:\n\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary mirror:\u003c\/strong\u003e adjusted with the central bolt and three small screws behind it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary mirror:\u003c\/strong\u003e three adjusting screws on the back of the tube, with three locking screws.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe manual walks through both mirrors, and suggests a collimating cap made from a 35mm film canister with a pinhole in the lid.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eTube, Base and Care\u003c\/h3\u003e\n\u003cp\u003eThe tube (45\", 28 lb with accessories) lifts off the Dobsonian base, so they move as two pieces.\u003c\/p\u003e\n\u003cp\u003eReplace the dust cap whenever the telescope is not in use, and do not clean the mirror unless you are familiar with optical surfaces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSolar Safety\u003c\/h3\u003e\n\u003cp\u003eLooking directly at the Sun through the telescope will cause permanent eye damage. Use a proper \u003ca href=\"\/en-int\/collections\/solar-filters\"\u003esolar filter\u003c\/a\u003e for viewing the Sun.\u003c\/p\u003e\n\u003cp\u003eNever use an eyepiece-type solar filter. When observing the Sun, place a dust cap over the finderscope. Never use the telescope to project sunlight onto another surface: the internal heat build-up will damage the optical elements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat magnification do the included eyepieces give?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e60x with the 20 mm eyepiece and 96x with the 12.5 mm. An optional Barlow lens between the focuser and eyepiece increases magnification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Classic 250P break down?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe tube (45\", 28 lb with accessories) lifts off the Dobsonian base, so they move as two pieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Sky-Watcher Classic 250P's mount track the sky automatically?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. You move the tube by hand in azimuth and altitude to follow an object as the Earth rotates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill I need to collimate the Classic 250P, and is it difficult?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNewtonians need occasional collimation. Test on a slightly defocused star: symmetrical rings mean it is aligned. The manual explains adjusting the secondary's central bolt and three small screws, and the primary's three adjusting screws with their three locking screws.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the function of the Tension Control Handle on the Classic 250P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt adds just enough friction for the tube to move when nudged but stay in position when not. Re-adjust it when you add or remove accessories; install it on the focuser side and leave the handle on the other side slightly loose.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow long does the Classic 250P take to cool down?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAt least 10 to 30 minutes to reach outside air temperature, longer with a big temperature difference or larger optics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use 2-inch eyepieces with the Sky-Watcher Classic 250P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The 2\" Crayford focuser comes with 2\" and 1.25\" eyepiece adapters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I align the 9x50 finderscope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn daylight, center an object at least 500 yards away in the main telescope's low-power eyepiece, then use the finder's two alignment screws to center its crosshairs on the same object.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I attach a camera for astrophotography with the Classic 250P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSky-Watcher's material does not cover imaging with it. The Dobsonian mount does not track, so objects drift out of the field as the Earth rotates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich way round does the tension control handle go?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstall it on the same side as the focuser. Do not over-tighten the handles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I observe the Sun with the Classic 250P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eOnly with a proper solar filter. Never look directly at the Sun through the telescope, never use an eyepiece-type solar filter, never project sunlight with it, and cap the finderscope when observing the Sun.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I keep the mirrors clean?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eReplace the dust cap whenever the telescope is not in use, and do not clean the mirror unless you are familiar with optical surfaces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eNewtonian\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Aperture\u003c\/td\u003e\n\u003ctd\u003e254mm (10\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e1200mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/4.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMirror Coatings\u003c\/td\u003e\n\u003ctd\u003eRadiant Aluminum Quartz (RAQ)™\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMirror Reflectivity\u003c\/td\u003e\n\u003ctd\u003e94%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGlass Type\u003c\/td\u003e\n\u003ctd\u003eBorosilicate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecondary Diameter\u003c\/td\u003e\n\u003ctd\u003e64mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003e2\" Crayford\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Length\u003c\/td\u003e\n\u003ctd\u003e45\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Outer Diameter\u003c\/td\u003e\n\u003ctd\u003e11.375\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Weight (with accessories)\u003c\/td\u003e\n\u003ctd\u003e28 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e050234116206\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAltitude Control\u003c\/td\u003e\n\u003ctd\u003eTension control handle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount\u003c\/td\u003e\n\u003ctd\u003eYes, Dobsonian rocker base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eClassic 250P Optical Tube Assembly\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDobsonian Base with Tension Control Handle\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e9x50 Finderscope\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e20 mm Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e12.5 mm Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2\" Eyepiece Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1.25\" Eyepiece Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_Classic_Dobsonian_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Classic 250P Dobsonian Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967190790429,"sku":"SW-S11620","price":1200.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher-Classic-250P-S11620-1__79474.1594170778.1280.1280.jpg?v=1684338462"},{"product_id":"sky-watcher-flextube-200p","title":"Sky-Watcher Flextube 200P","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e203mm (8\") Newtonian Optical Design\u003c\/li\u003e\n\u003cli\u003e1200mm Focal Length (f\/5.9)\u003c\/li\u003e\n\u003cli\u003eCollapsible OTA Retracts from 44\" to 33\"\u003c\/li\u003e\n\u003cli\u003e2\" Crayford Focuser with 1.25\" Adapter\u003c\/li\u003e\n\u003cli\u003eDobsonian Base with Tension Control Handle\u003c\/li\u003e\n\u003cli\u003eIncludes 20mm (60x) and 12.5mm (96x) Eyepieces\u003c\/li\u003e\n\u003cli\u003e8x50 Right-Angle Correct-Image (RACI) Finderscope\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSky-Watcher Flextube 200P\u003c\/h2\u003e\n\u003cp\u003eThe Sky-Watcher Flextube 200P is an 8-inch (203mm) \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonian\u003c\/a\u003e Dobsonian with a 1200mm focal length (f\/5.9) and a collapsible tube that shortens from 44\" to 33\" for transport. It sits on a Dobsonian base with a tension control handle, has a 2\" Crayford \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e with 2\" and 1.25\" eyepiece adapters, and comes with 20 mm and 12.5 mm eyepieces (60x and 96x) and an 8x50 right-angle correct-image (RACI) finderscope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePointing a Dobsonian\u003c\/h3\u003e\n\u003cp\u003eWith the mount level, you swivel the telescope in azimuth, parallel to the horizon, and tilt it up in altitude. Because the Earth rotates, you nudge the tube in both axes to keep an object in the field. Reference material lists altitude in degrees above or below your horizon and azimuth in degrees clockwise from North.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e203mm Optics at f\/5.9\u003c\/h3\u003e\n\u003cp\u003eThe primary mirror is 203mm (8\") with a 1200mm focal length, giving f\/5.9. The secondary mirror is 48mm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e60x and 96x with Included Eyepieces\u003c\/h3\u003e\n\u003cp\u003eMagnification is the telescope's focal length divided by the eyepiece focal length. Sky-Watcher's rule of thumb for usable magnification is about 2x per mm of aperture in good conditions, and it advises starting at a lower magnification with its wider field before increasing it.\u003c\/p\u003e\n\u003cp\u003eWith the included 1.25-inch eyepieces:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e20mm eyepiece:\u003c\/strong\u003e 1200 \/ 20 = 60x.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12.5mm eyepiece:\u003c\/strong\u003e 1200 \/ 12.5 = 96x.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eExit pupil is the aperture divided by the magnification: about 3.4mm at 60x and 2.1mm at 96x. The manual gives about 7mm as an average fully dilated pupil, less before full dark adaptation and with age.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDobsonian Base and Tension Control Handle\u003c\/h3\u003e\n\u003cp\u003eThe tube's side bearings rest on the base's four cylindrical \u003ca href=\"\/en-int\/collections\/saddles-and-clamps\"\u003esaddle\u003c\/a\u003e side bearings.\u003c\/p\u003e\n\u003cp\u003eLoosen or tighten the tension control handle to add just enough friction for the tube to move easily when nudged but stay in position when not. Re-adjust it when accessories are added or removed. Install it on the same side as the eyepiece, and leave the handle on the other side slightly loose.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCollapsible Tube: 44\" Extended, 33\" Retracted\u003c\/h3\u003e\n\u003cp\u003eThe tube is 44\" long when extended and 33\" retracted, with a 9.375\" outer diameter. It weighs 24.2 lb with accessories.\u003c\/p\u003e\n\u003cp\u003eTo use the telescope, unlock the three locking screws on the bottom tube, hold the knob on the top tube and pull it up until it clicks in place, then retighten the screws. To transport it, unlock the three screws, hold the black handles on the upper tube, slide it down onto the bottom tube and tighten the screws. Remove the dust cap from the bottom tube before viewing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAssembly\u003c\/h3\u003e\n\u003cp\u003eThe base is assembled from side panels A1 and A2, front panel B and base plates C and D, with the screws, bolt, Teflon pad, accessory tray, handles and four cylindrical saddle side bearings supplied. The kit includes a Phillips screwdriver, two Allen wrenches and two wrenches.\u003c\/p\u003e\n\u003cp\u003eThen:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearings and tray:\u003c\/strong\u003e fit the four cylindrical saddle side bearings and the accessory tray.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube:\u003c\/strong\u003e place it between boards A1 and A2 so its side bearings rest on the saddle bearings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandles:\u003c\/strong\u003e fit the handles, with the tension control handle on the same side as the focuser.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinder:\u003c\/strong\u003e remove the rubber O-ring before installation, slide the bracket into the mounting slot, and loosen the two adjusting screws to position the finderscope.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAligning the Finderscope and Focusing\u003c\/h3\u003e\n\u003cp\u003eAlign the finderscope outdoors in daylight. Point the main telescope at an object at least 500 yards away and center it in the eyepiece.\u003c\/p\u003e\n\u003cp\u003eThen use the two small alignment screws, which work against a spring-loaded knob, to center the \u003ca href=\"\/en-int\/collections\/finder-scopes\"\u003efinder\u003c\/a\u003e's crosshairs on the same object.\u003c\/p\u003e\n\u003cp\u003eRemove the black plastic end-cap, loosen the thumbscrews on the focus tube, insert an eyepiece and lightly tighten them. Turn the focus knobs slowly until the image is sharp. Refocusing over time is normal, due to temperature changes and flexure, especially with short focal ratio telescopes before they reach outside temperature, and almost always needed after changing an eyepiece or adding or removing a \u003ca href=\"\/en-int\/collections\/barlows-and-extenders\"\u003eBarlow lens\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSite, Seeing and Dark Adaptation\u003c\/h3\u003e\n\u003cp\u003eChoose a site away from city lights, upwind from air pollution and as high as possible. Pavement and concrete radiate stored heat, and a window distorts the image. Do not observe immediately after sunset; objects are best observed as they cross the meridian. Telescopes need at least 10 to 30 minutes to cool to outside air temperature, longer with a big temperature difference or larger optics.\u003c\/p\u003e\n\u003cp\u003eIn good seeing the stars appear steady, without twinkling, to the unassisted eye. Expose your eyes to nothing but red light for 30 minutes before observing, observe with both eyes open, and use averted vision on faint objects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCollimation and Cleaning Procedures\u003c\/h3\u003e\n\u003cp\u003eCollimation aligns the mirrors so they deliver properly focused light to the eyepiece. Center a star and move the focuser so it is slightly out of focus: in good seeing, rings symmetrical about the Airy disc mean the optics are collimated.\u003c\/p\u003e\n\u003cp\u003eThe secondary mirror is aligned with the three small screws around its central bolt. On the 200mm\/1200mm model, the Phillips-head screws at the back are the primary's adjusting screws and the hex bolts are the locking screws. The manual suggests a collimating cap made from a 35mm film canister with a pinhole in the lid.\u003c\/p\u003e\n\u003cp\u003eReplace the dust cap whenever the telescope is not in use. Do not clean the mirror unless you are familiar with optical surfaces; clean the finderscope and eyepieces with special lens paper only.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eTube and Base\u003c\/h3\u003e\n\u003cp\u003eThe tube weighs 24.2 lb with accessories and the base 26 lb, 29.5\" x 20\". They move as two pieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSolar Safety\u003c\/h3\u003e\n\u003cp\u003eNever use the telescope to look directly at the Sun, as permanent eye damage will result. Use a proper \u003ca href=\"\/en-int\/collections\/solar-filters\"\u003esolar filter\u003c\/a\u003e for viewing the Sun.\u003c\/p\u003e\n\u003cp\u003eNever use an eyepiece-type solar filter, and never use the telescope to project sunlight onto another surface: the internal heat build-up will damage the optical elements. When observing the Sun, place a dust cap over the finderscope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I assemble the Sky-Watcher Flextube 200P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBuild the flat-packed base with the supplied screws, Teflon pad, saddle side bearings and tools. Place the tube so its side bearings rest on the saddle bearings, fit the handles with the tension control handle on the focuser side, and slide the finder bracket into its slot.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the Tension Control Handle on the Flextube 200P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt adds just enough friction for the tube to move when nudged but stay in position when not. Re-adjust it when accessories are added or removed; leave the handle on the other side slightly loose.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I extend and collapse the tube?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo use the telescope, unlock the three locking screws on the bottom tube, hold the knob on the top tube and pull it up until it clicks in place, then retighten the screws. To transport it, unlock the screws, hold the black handles, slide the upper tube down onto the bottom tube and tighten the screws.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Flextube 200P need to be collimated often?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNewtonians need occasional collimation. Test on a slightly defocused star: symmetrical rings mean it is aligned. The secondary is adjusted with three small screws around its central bolt, and the primary with the adjusting screws at the back, held by locking screws.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat magnification do the included eyepieces give?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e60x with the 20 mm eyepiece and 96x with the 12.5 mm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the focal ratio?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003ef\/5.9: a 203mm mirror with a 1200mm focal length.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Flextube 200P break down?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe tube collapses from 44\" to 33\". The tube weighs 24.2 lb with accessories and the base 26 lb; they move as two pieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use 2-inch eyepieces with the Sky-Watcher Flextube 200P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The 2\" Crayford focuser takes 2\" eyepieces, and 2\" and 1.25\" eyepiece adapters are included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat should I do before starting an observing session?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eLet the telescope cool for at least 10 to 30 minutes, keep your eyes to red light only for 30 minutes, and remove the dust cap on the bottom tube and the black plastic end-cap on the focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I align the 8x50 RACI finderscope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn daylight, center an object at least 500 yards away in the main eyepiece, then use the two alignment screws on the finder bracket to center its crosshairs on the same object.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I look at the Sun with the Flextube 200P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eOnly with a proper solar filter. Never look directly at the Sun through the telescope, never use an eyepiece-type solar filter, never project sunlight with it, and cap the finderscope when observing the Sun.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow big is the base?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt measures 29.5\" x 20\" and weighs 26 lb.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e050234117005\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eNewtonian\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Aperture\u003c\/td\u003e\n\u003ctd\u003e203mm (8\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e1200mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/5.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMirror Coatings\u003c\/td\u003e\n\u003ctd\u003eRadiant Aluminum Quartz (RAQ)™ coatings with 94% reflectivity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGlass Type\u003c\/td\u003e\n\u003ctd\u003eBorosilicate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecondary Diameter\u003c\/td\u003e\n\u003ctd\u003e48mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003e2\" Crayford\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Length (Retracted)\u003c\/td\u003e\n\u003ctd\u003e33\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Length (Extended)\u003c\/td\u003e\n\u003ctd\u003e44\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Outer Diameter\u003c\/td\u003e\n\u003ctd\u003e9.375\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Weight (with accessories)\u003c\/td\u003e\n\u003ctd\u003e24.2 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDobsonian Base Weight\u003c\/td\u003e\n\u003ctd\u003e26 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDobsonian Base Dimensions\u003c\/td\u003e\n\u003ctd\u003e29.5\" x 20\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Finderscope\u003c\/td\u003e\n\u003ctd\u003e8x50 RACI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Eyepieces\u003c\/td\u003e\n\u003ctd\u003e20mm, 12.5mm (1.25\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification with Eyepieces\u003c\/td\u003e\n\u003ctd\u003e60x, 96x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount\u003c\/td\u003e\n\u003ctd\u003eYes, Dobsonian rocker base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eFlextube 200P Optical Tube Assembly\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDobsonian Base\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e8x50 RACI Finderscope\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e20 mm Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e12.5 mm Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2\" Eyepiece Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1.25\" Eyepiece Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_Flextube_Collapsible_Dobsonian_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Flextube Collapsible Dobsonian Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967190823197,"sku":"SW-S11700","price":1020.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher-Flextube-200P-S11700-1__63499.1594170779.1280.1280.jpg?v=1684338475"},{"product_id":"sky-watcher-heritage-130-tabletop-dobsonian","title":"Sky-Watcher Heritage 130 Tabletop Dobsonian","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e130mm (5.1\") Parabolic Primary Mirror\u003c\/li\u003e\n\u003cli\u003e650mm Focal Length (f\/5)\u003c\/li\u003e\n\u003cli\u003eCollapsible Truss-Tube Design (14.75\" Retracted)\u003c\/li\u003e\n\u003cli\u003eTabletop Dobsonian Base\u003c\/li\u003e\n\u003cli\u003eIncludes 25mm (26x) and 10mm (65x) Eyepieces\u003c\/li\u003e\n\u003cli\u003eRed Dot Finder\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSky-Watcher Heritage 130 Tabletop Dobsonian\u003c\/h2\u003e\n\u003cp\u003eThe Sky-Watcher Heritage 130 is a tabletop Dobsonian with a 130mm (5.1\") paraboloidal primary mirror and a 650mm focal length (f\/5). Its collapsible truss tube needs no disassembly or collimation between uses. It comes with 25mm and 10mm SUPER 1.25-inch eyepieces and a red dot finder.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eInternational Year of Astronomy Edition\u003c\/h3\u003e\n\u003cp\u003eSky-Watcher first presented the Heritage P130 as its commemorative International Year of Astronomy telescope, in honor of those who have contributed to astronomy, and calls it a collectable special edition.\u003c\/p\u003e\n\u003cp\u003eIt makes a perfect gift idea for little astronomers or anyone curious enough to look up and wonder, with great all-around astronomical viewing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e130mm f\/5 Paraboloidal Optics\u003c\/h3\u003e\n\u003cp\u003eSky-Watcher uses aluminized paraboloidal mirrors for sharp, detailed images, and lists the highest practical power at 260x and a faintest stellar magnitude of 13.3. The secondary mirror is 34.5mm.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary mirror:\u003c\/strong\u003e 130mm paraboloidal, 650mm focal length.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal ratio:\u003c\/strong\u003e f\/5.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary mirror:\u003c\/strong\u003e 34.5mm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eTabletop Dobsonian Base\u003c\/h3\u003e\n\u003cp\u003eThe single-arm \u003ca href=\"\/en-int\/collections\/alt-azimuth-mounts\"\u003ealt-azimuth\u003c\/a\u003e Dobsonian base is made for a table or other raised surface. Push the tube up, down, left or right to follow objects; there are no motors or electronics.\u003c\/p\u003e\n\u003cp\u003eThe base measures 14\" x 17\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCollapsible Truss Tube: From 25\" Down to 14.75\"\u003c\/h3\u003e\n\u003cp\u003eThe collapsible truss tube gives the full 650mm focal length and needs no disassembly or collimation between uses. The tube is 25\" extended and 14.75\" retracted, 168mm in outer diameter.\u003c\/p\u003e\n\u003cp\u003eThe tube weighs 6.5 lb with accessories, and the total weight is under 14 lb.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIncluded Eyepieces: 26x and 65x\u003c\/h3\u003e\n\u003cp\u003eTwo 1.25-inch SUPER eyepieces fit the 1.25-inch \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e, and a red dot finder helps aim the telescope. Magnification is 650mm divided by the eyepiece focal length:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e25mm SUPER eyepiece:\u003c\/strong\u003e 26x.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10mm SUPER eyepiece:\u003c\/strong\u003e 65x.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 1.25-inch focuser takes other 1.25-inch eyepieces and accessories. The highest practical power is 260x.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSolar Safety\u003c\/h3\u003e\n\u003cp\u003eNever point the telescope or its finder at the Sun without a proper \u003ca href=\"\/en-int\/collections\/solar-filters\"\u003esolar filter\u003c\/a\u003e securely covering the front of the telescope: looking at the Sun through it will cause permanent eye damage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat magnification do the included eyepieces give?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e26x with the 25mm SUPER eyepiece and 65x with the 10mm. The highest practical power is 260x.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the collapsible tube need collimating after each use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The truss-tube design needs no disassembly and no collimation between uses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhere do I set it up?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt is a tabletop Dobsonian: set the 14\" x 17\" base on a table or other raised, level surface.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use other 1.25\" eyepieces or a Barlow lens with the Heritage 130?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The 1.25-inch focuser takes other 1.25-inch eyepieces and accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Sky-Watcher Heritage 130 a good telescope for kids or beginners?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt makes a perfect gift for little astronomers or anyone curious enough to look up. It points by hand on its Dobsonian base, with no setup beyond extending the tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow portable is it?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe tube collapses to 14.75\", and the total weight is under 14 lb.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat focal length and ratio does it have?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e650mm at f\/5, with a 130mm paraboloidal primary mirror.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of finder scope does the Heritage 130 include?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA red dot finder.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow large is the secondary mirror on the Heritage 130?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe secondary mirror has a diameter of 34.5 mm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the history of the Sky-Watcher Heritage P130 model?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSky-Watcher presented the Heritage P130 as its commemorative International Year of Astronomy telescope, in honor of those who have contributed to astronomy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill I need any other accessories to start observing with the Heritage 130?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe box has the collapsible tube, the tabletop Dobsonian base, a red dot finder and 25mm and 10mm SUPER 1.25-inch eyepieces. You provide a table or other raised, level surface.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eNewtonian with parabolic primary mirror\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Aperture\u003c\/td\u003e\n\u003ctd\u003e130mm (5.1\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e650mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMirror Coatings\u003c\/td\u003e\n\u003ctd\u003eRadiant Aluminum Quartz (RAQ)™ coatings with 94% reflectivity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGlass Type\u003c\/td\u003e\n\u003ctd\u003eBorosilicate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecondary Diameter\u003c\/td\u003e\n\u003ctd\u003e34.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003e1.25-inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Length (Retracted)\u003c\/td\u003e\n\u003ctd\u003e14.75\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Length (Extended)\u003c\/td\u003e\n\u003ctd\u003e25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Outer Diameter\u003c\/td\u003e\n\u003ctd\u003e168mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Weight (with accessories)\u003c\/td\u003e\n\u003ctd\u003e6.5 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Dimensions\u003c\/td\u003e\n\u003ctd\u003e14\" x 17\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e050234117050\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount\u003c\/td\u003e\n\u003ctd\u003eYes, tabletop Dobsonian base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eHeritage 130mm Collapsible OTA\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTabletop Dobsonian Base\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eRed Dot Finder\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e25mm SUPER Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e10mm SUPER Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967190855965,"sku":"SW-S11705","price":370.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher-Heritage-130-Tabletop-Dobsonian-S11705-1__83995.1594170780.1280.1280.jpg?v=1684338487"},{"product_id":"sky-watcher-flextube-250p","title":"Sky-Watcher Flextube 250P","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e254mm (10-inch) Newtonian Reflector Optical Tube\u003c\/li\u003e\n\u003cli\u003e1200mm Focal Length, f\/4.7 Focal Ratio\u003c\/li\u003e\n\u003cli\u003eCollapsible Flextube design retracts from 1120mm to 800mm\u003c\/li\u003e\n\u003cli\u003e2-inch Crayford Focuser with 1.25\" Adapter\u003c\/li\u003e\n\u003cli\u003e8x50 Right-Angle Correct-Image (RACI) Finderscope\u003c\/li\u003e\n\u003cli\u003eIncludes 20mm (60x) and 12.5mm (96x) 1.25\" Eyepieces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSky-Watcher Flextube 250P Collapsible Dobsonian\u003c\/h2\u003e\n\u003cp\u003eThe Sky-Watcher Flextube 250P is a 10-inch (254mm) \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonian\u003c\/a\u003e Dobsonian with a paraboloidal primary mirror, a 1200mm focal length (f\/4.7) and a collapsible truss tube that shortens from 1120mm to 800mm. The 15 kg (33 lb) tube sits on a Dobsonian base with Sky-Watcher's patented altitude tension control, and comes with a 2\" Crayford \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e, 20mm and 12.5mm eyepieces and an 8x50 right-angle correct-image (RACI) finderscope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCollapsible Dobsonian Design\u003c\/h3\u003e\n\u003cp\u003eThe collapsible Dobsonian, complete with Crayford focuser, is Sky-Watcher's upgrade of the traditional Dobsonian design for large-aperture portability, and a good choice for first-time buyers. Unlike other truss tube designs, it does not need to be disassembled between uses: it transports as two pieces that are ready to use in seconds.\u003c\/p\u003e\n\u003cp\u003eIt is easy to collimate once set up and holds collimation throughout the evening.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e254mm f\/4.7 Paraboloidal Optics\u003c\/h3\u003e\n\u003cp\u003eThe 254mm paraboloidal primary mirror has a 1200mm focal length, giving f\/4.7. skywatcher.com lists a 58mm secondary mirror, a faintest stellar magnitude of 14.7 and the highest practical power at 508x.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e60x and 96x with Included Eyepieces\u003c\/h3\u003e\n\u003cp\u003eMagnification is the telescope's focal length divided by the eyepiece focal length. skywatcher.com lists the included eyepieces as 70-degree 20mm and 12.5mm:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e20mm eyepiece:\u003c\/strong\u003e 1200 \/ 20 = 60x; a 70-degree apparent field gives about 1.2 degrees of sky.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12.5mm eyepiece:\u003c\/strong\u003e 1200 \/ 12.5 = 96x, about 0.7 degrees.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe true field is the eyepiece's apparent field divided by the magnification. The manual suggests starting at a lower magnification with its wider field, then increasing it once you have found your target. Its rule of thumb for usable magnification is about 2x per mm of aperture in good conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDobsonian Base and Tension Control\u003c\/h3\u003e\n\u003cp\u003eSky-Watcher redesigned the bearing system with smooth azimuth bearings, and the patented tension adjustment control on the altitude bearings removes the need for \u003ca href=\"\/en-int\/collections\/counterweights\"\u003ecounterweights\u003c\/a\u003e to balance the tube.\u003c\/p\u003e\n\u003cp\u003eLoosen or tighten the tension control handle to add just enough friction for the tube to move easily when nudged but stay in position when not, and re-adjust it when accessories are added or removed. Install it on the same side as the eyepiece and leave the handle on the other side slightly loose. Because the Earth rotates, you nudge the tube in both azimuth and altitude to keep an object in the field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCollapsible Design Retracts from 1120mm to 800mm\u003c\/h3\u003e\n\u003cp\u003eskywatcher.com lists the tube at 380 mm in diameter, 800 to 1120 mm long and 15 kg.\u003c\/p\u003e\n\u003cp\u003eTo use the telescope, unlock the three locking screws on the bottom tube, hold the knob on the top tube and pull it up until it clicks in place, then retighten the screws. To transport it, unlock the three screws, hold the black handles on the upper tube, slide it down onto the bottom tube and tighten the screws. Remove the dust cap from the bottom tube before viewing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAssembly\u003c\/h3\u003e\n\u003cp\u003eThe base comes flat-packed. The manual's parts list includes side panels A1 and A2, front panel B, base plates C and D, the screws, bolt and Teflon pad, an accessory tray, the handles, four cylindrical \u003ca href=\"\/en-int\/collections\/saddles-and-clamps\"\u003esaddle\u003c\/a\u003e side bearings, a Phillips screwdriver, two Allen wrenches and two wrenches.\u003c\/p\u003e\n\u003cp\u003ePlace the tube between boards A1 and A2 so its side bearings rest on the saddle side bearings, with the tension control handle on the same side as the focuser. Remove the rubber O-ring from the finder bracket, slide the bracket into its mounting slot, then remove the black plastic end-cap from the focuser before inserting an eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAligning the 8x50 Finder and Focusing\u003c\/h3\u003e\n\u003cp\u003eAlign the 8x50 RACI finderscope outdoors in daylight. Center an object at least 500 yards away in the main eyepiece, then use the two small alignment screws, which work against a spring-loaded knob, to center the \u003ca href=\"\/en-int\/collections\/finder-scopes\"\u003efinder\u003c\/a\u003e's crosshairs on it.\u003c\/p\u003e\n\u003cp\u003eSky-Watcher ships its collapsible Dobsonians with ultra smooth Crayford focusers; the 2\" focuser comes with 2\" and 1.25\" eyepiece adapters. Turn the focus knobs slowly until the image is sharp. Refocusing over time is normal with short focal ratio telescopes, particularly before they reach outside temperature, and almost always needed after changing an eyepiece or adding or removing a \u003ca href=\"\/en-int\/collections\/barlows-and-extenders\"\u003eBarlow lens\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSite Selection, Cooldown, and Dark Adaptation\u003c\/h3\u003e\n\u003cp\u003eChoose a site away from city lights, upwind from air pollution and as high as possible. Pavement and concrete radiate stored heat, and a window distorts the image. Do not observe immediately after sunset. Telescopes need at least 10 to 30 minutes to cool to outside air temperature, longer with a big temperature difference or larger optics.\u003c\/p\u003e\n\u003cp\u003eExpose your eyes to nothing but red light for 30 minutes before observing, observe with both eyes open, and use averted vision on faint objects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCollimation and Care\u003c\/h3\u003e\n\u003cp\u003eCollimation aligns the mirrors so they deliver properly focused light to the eyepiece. Center a star and move the focuser so it is slightly out of focus: in good seeing, rings symmetrical about the Airy disc mean the optics are collimated. The secondary mirror is aligned with the three small screws around its central bolt. On the 254mm\/1200mm model, the flat-headed screws at the back are the primary's adjusting screws and the thumbscrews are the locking screws.\u003c\/p\u003e\n\u003cp\u003eThe manual's sequence: adjust the secondary until all three primary mirror clips are visible through the focuser, then adjust the primary, and confirm on a defocused star after dark. It suggests a collimating cap made from a 35mm film canister with a pinhole in the lid. Replace the dust cap whenever the telescope is not in use, and do not clean the mirror unless you are familiar with optical surfaces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eTube and Base\u003c\/h3\u003e\n\u003cp\u003eIt transports as two pieces: the tube, 15 kg (33 lb) and 380mm in diameter, retracted to 800mm, and the base.\u003c\/p\u003e\n\u003cp\u003eThe base weighs 26.5 lb and measures 29.5\" x 20\".\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSolar Safety\u003c\/h3\u003e\n\u003cp\u003eNever use the telescope to look directly at the Sun, as permanent eye damage will result. Use a proper \u003ca href=\"\/en-int\/collections\/solar-filters\"\u003esolar filter\u003c\/a\u003e for viewing the Sun.\u003c\/p\u003e\n\u003cp\u003eWhen observing the Sun, place a dust cap over the finderscope. Never use an eyepiece-type solar filter, and never use the telescope to project sunlight onto another surface: the internal heat build-up will damage the optical elements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat magnification do the included eyepieces give?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e60x with the 20 mm eyepiece and 96x with the 12.5 mm. The highest practical power is 508x.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Flextube 250P transport and set up?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt transports as two pieces: the tube, retracted to 800mm and 15 kg, and the base. Set the tube on the base, unlock the three locking screws, pull the top tube up until it clicks and retighten them.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill I need to collimate the Flextube 250P every time I use it?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe collapsible design is easy to collimate once set up and holds collimation throughout the evening.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of the 2\" Crayford focuser on the Flextube 250P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt takes 2-inch eyepieces as well as 1.25-inch ones with the included adapter. The Crayford focuser is ultra smooth.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the tension control handle on the Flextube 250P's base do?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt sets the friction on the altitude bearings so the tube stays in position with heavier or lighter eyepieces, without a counterweight system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use 2-inch eyepieces with the Flextube 250P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The 2\" Crayford focuser takes 2-inch eyepieces, and 2\" and 1.25\" eyepiece adapters are included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the mount track the sky?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. You move the tube by hand in azimuth and altitude to follow an object.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat tools are needed to assemble the Flextube 250P's Dobsonian base?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe base comes flat-packed. The manual's parts list includes the screws, a Teflon pad, an accessory tray, the handles, a Phillips screwdriver, two Allen wrenches and two wrenches.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eAre the included eyepieces 1.25-inch?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes: a 20 mm (60x) and a 12.5 mm (96x), both 1.25-inch. skywatcher.com lists them as 70-degree eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I extend and retract the Sky-Watcher Flextube 250P's optical tube?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo use the telescope, unlock the three locking screws on the bottom tube, hold the knob on the top tube and pull it up until it clicks in place, then retighten the screws. To transport it, unlock the screws, hold the black handles, slide the upper tube down onto the bottom tube and tighten the screws.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs it safe to observe the Sun with the Flextube 250P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eOnly with a proper solar filter. Never look directly at the Sun through the telescope, never use an eyepiece-type solar filter, never project sunlight with it, and cap the finderscope when observing the Sun.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow big is the base?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt measures 29.5\" x 20\" and weighs 26.5 lb.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eNewtonian with parabolic primary mirror\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Aperture\u003c\/td\u003e\n\u003ctd\u003e254mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e1200mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/4.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMirror Coatings\u003c\/td\u003e\n\u003ctd\u003eRadiant Aluminum Quartz (RAQ)™ with 94% reflectivity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGlass Type\u003c\/td\u003e\n\u003ctd\u003eBorosilicate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Finderscope\u003c\/td\u003e\n\u003ctd\u003e8x50 RACI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Eyepieces\u003c\/td\u003e\n\u003ctd\u003e20mm, 12.5mm (1.25\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification with Eyepieces\u003c\/td\u003e\n\u003ctd\u003e60x, 96x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003e2\" Crayford\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Length (Retracted \/ Extended)\u003c\/td\u003e\n\u003ctd\u003e800 mm \/ 1120 mm, tube diameter 380 mm (skywatcher.com)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Weight (with accessories)\u003c\/td\u003e\n\u003ctd\u003e15 kg (33 lb) tube (skywatcher.com)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDobsonian Base Weight\u003c\/td\u003e\n\u003ctd\u003e26.5 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDobsonian Base Dimensions\u003c\/td\u003e\n\u003ctd\u003e29.5\" x 20\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e050234117203\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount\u003c\/td\u003e\n\u003ctd\u003eYes, Dobsonian rocker base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eFlextube 250P Optical Tube Assembly\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDobsonian Base\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e8x50 RACI Finderscope\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e20 mm Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e12.5 mm Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2\" Eyepiece Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1.25\" Eyepiece Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_Flextube_Collapsible_Dobsonian_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Flextube Collapsible Dobsonian Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967190888733,"sku":"SW-S11720","price":1380.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Sky-Watcher-Flextube-250P-S11720-1__92705.1594170781.1280.1280.jpg?v=1684338506"},{"product_id":"sky-watcher-flextube-300p","title":"Sky-Watcher Flextube 300P","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e305mm (12\") Newtonian parabolic primary mirror\u003c\/li\u003e\n\u003cli\u003e1500mm focal length (f\/4.9)\u003c\/li\u003e\n\u003cli\u003eCollapsible Flextube design retracts from 1400mm to 920mm\u003c\/li\u003e\n\u003cli\u003eDobsonian base with patented tension control altitude bearings\u003c\/li\u003e\n\u003cli\u003e2\" Crayford-style focuser with 1.25\" adapter\u003c\/li\u003e\n\u003cli\u003eIncludes 20mm (75x) and 12.5mm (120x) eyepieces\u003c\/li\u003e\n\u003cli\u003e8x50 Right-Angle Correct-Image (RACI) finderscope\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSky-Watcher Flextube 300P\u003c\/h2\u003e\n\u003cp\u003eThe Sky-Watcher Flextube 300P is a 12-inch (305mm) \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonian\u003c\/a\u003e Dobsonian with a paraboloidal primary mirror, a 1500mm focal length (f\/4.9) and a collapsible truss tube that shortens from 1400mm to 920mm. The 21 kg (46.3 lb) tube sits on a Dobsonian base with smooth azimuth bearings and Sky-Watcher's patented altitude tension control.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCollapsible Dobsonian Design\u003c\/h3\u003e\n\u003cp\u003eThe collapsible Dobsonian, complete with Crayford \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e, is Sky-Watcher's upgrade of the traditional design for large-aperture portability, and a good choice for first-time buyers. You swivel the tube in azimuth and tilt it in altitude by hand; because the Earth rotates, you nudge it in both axes to keep an object in the field.\u003c\/p\u003e\n\u003cp\u003eUnlike other truss designs, it does not need to be disassembled between uses: it transports as two pieces that are ready to use in seconds, easy to collimate once set up, and hold collimation throughout the evening.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e305mm f\/4.9 Paraboloidal Optics\u003c\/h3\u003e\n\u003cp\u003eThe 305mm paraboloidal primary mirror has a 1500mm focal length, giving f\/4.9, and the secondary mirror is 70mm. skywatcher.com lists a faintest stellar magnitude of 14.9 and the highest practical power at 610x.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e75x and 120x from Two Included Eyepieces\u003c\/h3\u003e\n\u003cp\u003eMagnification is the telescope's focal length divided by the eyepiece focal length. skywatcher.com lists the included 1.25\" eyepieces as 70-degree 20mm and 12.5mm:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e20mm eyepiece:\u003c\/strong\u003e 1500 \/ 20 = 75x; a 70-degree apparent field gives about 0.9 degrees of sky.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12.5mm eyepiece:\u003c\/strong\u003e 1500 \/ 12.5 = 120x, about 0.6 degrees.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe manual's rule of thumb for usable magnification is about 2x per mm of aperture in good conditions, because higher power also magnifies the turbulence in the air. It advises starting at a lower magnification with its wider field, then increasing it once you have found your target.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDobsonian Base and Tension Control\u003c\/h3\u003e\n\u003cp\u003eSky-Watcher redesigned the bearing system with smooth azimuth bearings, and even the twelve-inch model can be rotated with the push of a finger. The tube's side bearings rest on the base's four cylindrical \u003ca href=\"\/en-int\/collections\/saddles-and-clamps\"\u003esaddle\u003c\/a\u003e side bearings, with the tension control handle on the same side as the focuser. The base weighs 38.3 lb and measures 29\" x 25\".\u003c\/p\u003e\n\u003cp\u003eThe patented tension adjustment control on the altitude bearings removes the need for \u003ca href=\"\/en-int\/collections\/counterweights\"\u003ecounterweights\u003c\/a\u003e to balance the tube. Loosen or tighten the handle so the tube moves easily when nudged but stays in position when not, and re-adjust it when accessories are added or removed; leave the handle on the other side slightly loose.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCollapsible Tube: 1400mm to 920mm\u003c\/h3\u003e\n\u003cp\u003eskywatcher.com lists the tube at 450 mm in diameter, 920 to 1400 mm long and 21 kg.\u003c\/p\u003e\n\u003cp\u003eTo use the telescope, unlock the three locking screws on the bottom tube, hold the knob on the top tube and pull it up until it clicks in place, then retighten the screws. To transport it, unlock the three screws, hold the black handles on the upper tube, slide it down onto the bottom tube and tighten the screws. Remove the dust cap from the bottom tube before viewing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSetting Up\u003c\/h3\u003e\n\u003cp\u003eThe base needs assembly before first use. The manual's tube steps:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube:\u003c\/strong\u003e place it between the base's side boards so its side bearings rest on the four cylindrical saddle side bearings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandles:\u003c\/strong\u003e fit the handles, with the tension control handle on the same side as the focuser.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinder:\u003c\/strong\u003e remove the rubber O-ring before installation, slide the bracket into the mounting slot and position the finderscope with the two adjusting screws.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEyepiece:\u003c\/strong\u003e remove the black plastic end-cap, loosen the thumbscrews on the focus tube, insert an eyepiece and lightly tighten them.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFocuser, Finder and Eyepieces\u003c\/h3\u003e\n\u003cp\u003eAn 8x50 right-angle correct-image (RACI) finderscope, 2\" and 1.25\" eyepiece adapters and a dust cap are included. Align the \u003ca href=\"\/en-int\/collections\/finder-scopes\"\u003efinder\u003c\/a\u003e outdoors in daylight: center an object at least 500 yards away in the main eyepiece, then use the two small alignment screws, which work against a spring-loaded knob, to center the crosshairs on it.\u003c\/p\u003e\n\u003cp\u003eThe focuser is a 2\" Crayford-style unit; Sky-Watcher ships its collapsible Dobsonians with smooth Crayford focusers. Turn the focus knobs slowly until the image is sharp. Refocusing over time is normal with short focal ratio telescopes, particularly before they reach outside temperature, and almost always needed after changing an eyepiece or adding or removing a \u003ca href=\"\/en-int\/collections\/barlows-and-extenders\"\u003eBarlow lens\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSite, Seeing and Cooling\u003c\/h3\u003e\n\u003cp\u003eThe manual's observing advice:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSite:\u003c\/strong\u003e away from city lights, upwind from air pollution and as high as possible, with a dark, unobstructed horizon. Pavement and concrete radiate stored heat, and a window distorts the image.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeeing and transparency:\u003c\/strong\u003e in good seeing the stars appear steady, without twinkling, to the unassisted eye; ideal transparency is an inky black sky and unpolluted air. Do not observe immediately after sunset.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling:\u003c\/strong\u003e at least 10 to 30 minutes to reach outside air temperature, longer with a big temperature difference or larger optics, to minimize tube currents.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYour eyes:\u003c\/strong\u003e nothing but red light for 30 minutes before observing; observe with both eyes open, and use averted vision on faint objects.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCollimation\u003c\/h3\u003e\n\u003cp\u003eCollimation aligns the mirrors so they deliver properly focused light to the eyepiece. Center a star and move the focuser so it is slightly out of focus: in good seeing, rings symmetrical about the Airy disc mean the optics are collimated. The manual's two steps:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary:\u003c\/strong\u003e point the telescope at a lit wall, look through a collimating cap (or keep your eye against the back of the focus tube), and adjust the three small screws around the central bolt until all three primary mirror clips are visible.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary:\u003c\/strong\u003e loosen the locking screws, then use the adjusting screws at the back until the secondary's reflection is centered. A friend can turn the screws while you watch. Finish on a defocused star after dark.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eTube, Base and Care\u003c\/h3\u003e\n\u003cp\u003eThe tube weighs 21 kg (skywatcher.com) and the base 38.3 lb (Sky-Watcher USA). They move as two pieces.\u003c\/p\u003e\n\u003cp\u003eTighten the three locking screws after collapsing the tube for transport. Replace the dust cap whenever the telescope is not in use, and do not clean the mirror unless you are familiar with optical surfaces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSolar Safety\u003c\/h3\u003e\n\u003cp\u003eNever use the telescope to look directly at the Sun, as permanent eye damage will result. Use a proper \u003ca href=\"\/en-int\/collections\/solar-filters\"\u003esolar filter\u003c\/a\u003e for viewing the Sun.\u003c\/p\u003e\n\u003cp\u003eWhen observing the Sun, place a dust cap over the finderscope. Never use an eyepiece-type solar filter, and never use the telescope to project sunlight onto another surface: the internal heat build-up will damage the optical elements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat magnification do the included eyepieces give?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e75x with the 20 mm eyepiece and 120x with the 12.5 mm. The highest practical power is 610x.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow heavy is it?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe tube weighs 21 kg (skywatcher.com) and the base 38.3 lb (Sky-Watcher USA). They move as two pieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Flextube 300P hold collimation well after being collapsed and extended?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe collapsible design is easy to collimate once set up and holds collimation throughout the evening.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use 2-inch eyepieces with the Flextube 300P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The 2\" Crayford-style focuser takes 2-inch eyepieces, and 2\" and 1.25\" adapters are included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I collapse the Flextube 300P for transport?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eUnlock the three locking screws, hold the black handles on the upper tube, slide it down onto the bottom tube and tighten the screws.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Sky-Watcher Flextube 300P a good telescope for a beginner?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eCollapsible Dobsonians like this one are recommended for first-time buyers. The mount points by hand, with no electronics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the mount track the sky?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. You move the tube by hand in azimuth and altitude to follow an object.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the tension control handle on the Flextube 300P's base?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt sets the friction on the altitude bearings so the tube stays in position, which removes the need for counterweights.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I extend the tube?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eUnlock the three locking screws on the bottom tube, hold the knob on the top tube and pull it up until it clicks in place, then retighten the screws. Remove the dust cap from the bottom tube before viewing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow long does it need to cool down?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAt least 10 to 30 minutes to reach outside air temperature, and the manual advises allowing longer for larger optics or a big temperature difference.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I observe the Sun with the Flextube 300P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eOnly with a proper solar filter. Never look directly at the Sun through the telescope, never use an eyepiece-type solar filter, never project sunlight with it, and cap the finderscope when observing the Sun.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow big is the base?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt measures 29\" x 25\" and weighs 38.3 lb.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eNewtonian with parabolic primary mirror\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Aperture\u003c\/td\u003e\n\u003ctd\u003e305mm (12\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e1500mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/4.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMirror Coatings\u003c\/td\u003e\n\u003ctd\u003eRadiant Aluminum Quartz (RAQ)™ with 94% reflectivity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGlass Type\u003c\/td\u003e\n\u003ctd\u003eBorosilicate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecondary Diameter\u003c\/td\u003e\n\u003ctd\u003e70mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003e2\" Crayford-style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Length (Retracted)\u003c\/td\u003e\n\u003ctd\u003e920 mm (skywatcher.com)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Length (Extended)\u003c\/td\u003e\n\u003ctd\u003e1400 mm, tube diameter 450 mm (skywatcher.com)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Weight (with accessories)\u003c\/td\u003e\n\u003ctd\u003e21 kg (46.3 lb) tube (skywatcher.com)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Weight\u003c\/td\u003e\n\u003ctd\u003e38.3 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Dimensions\u003c\/td\u003e\n\u003ctd\u003e29\" x 25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Finderscope\u003c\/td\u003e\n\u003ctd\u003e8x50 Right-Angle Correct-Image (RACI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Eyepieces\u003c\/td\u003e\n\u003ctd\u003e20mm \u0026amp; 12.5mm (1.25\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification (with included eyepieces)\u003c\/td\u003e\n\u003ctd\u003e75x \u0026amp; 120x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e050234117401\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount\u003c\/td\u003e\n\u003ctd\u003eYes, Dobsonian rocker base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eFlextube 300P Optical Tube Assembly\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDobsonian Base\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e8x50 RACI Finderscope\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e20 mm Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e12.5 mm Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2\" Eyepiece Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1.25\" Eyepiece Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Cap\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_Flextube_Collapsible_Dobsonian_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Flextube Collapsible Dobsonian Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967190987037,"sku":"SW-S11740","price":2280.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher-Flextube-300P-S11740-1__81366.1594170783.1280.1280.jpg?v=1684338508"},{"product_id":"sky-watcher-flextube-200p-synscan","title":"Sky-Watcher Flextube 200P SynScan","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e203mm (8-inch) Newtonian optical design with a parabolic primary mirror\u003c\/li\u003e\n\u003cli\u003e1200mm focal length and f\/5.9 focal ratio\u003c\/li\u003e\n\u003cli\u003ePatented Flextube design collapses from 1115mm to 835mm for easy transport\u003c\/li\u003e\n\u003cli\u003eSynScan AZ computerized GoTo system with a 42,900+ object database\u003c\/li\u003e\n\u003cli\u003eFreedom Find™ dual encoders: move it by hand without losing alignment\u003c\/li\u003e\n\u003cli\u003e2-inch Crayford focuser with included 1.25-inch adapter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSky-Watcher Flextube 200P SynScan\u003c\/h2\u003e\n\u003cp\u003eThe Sky-Watcher Flextube 200P SynScan is an 8-inch (203mm) GoTo Dobsonian with a paraboloidal primary mirror and a 1200mm focal length (f\/5.9). Its patented collapsible tube retracts from 1115mm to 835mm, and the SynScan AZ hand control slews to over 42,900 objects. Sky-Watcher's Freedom Find dual encoders let you push the tube by hand without losing alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eGoTo on a Collapsible Dobsonian\u003c\/h3\u003e\n\u003cp\u003eThe SynScan AZ hand control can point the telescope at a chosen object or tour the sky at the touch of a button, and the motors track the object once found.\u003c\/p\u003e\n\u003cp\u003eEven an inexperienced astronomer can master the SynScan features in a few observing sessions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e203mm f\/5.9 Paraboloidal Optics\u003c\/h3\u003e\n\u003cp\u003eThe 203mm paraboloidal primary mirror has a 1200mm focal length, giving f\/5.9. The highest practical power is 406x.\u003c\/p\u003e\n\u003cp\u003eSky-Watcher fits its collapsible Dobsonians with a 2\" Crayford \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e; a 1.25\" eyepiece adapter is included. Turn the focus knobs slowly until the image is sharp; the manual notes that refocusing over time is normal with short focal ratio telescopes before they reach outside temperature, and after changing an eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCollapsible Tube: 1115mm to 835mm\u003c\/h3\u003e\n\u003cp\u003eskywatcher.com lists the tube at 320 mm in diameter, 835 to 1115 mm long and 11 kg. Unlike other truss designs, Sky-Watcher's collapsible Dobsonian does not need to be disassembled between uses: it transports as two compact pieces, is ready to use in seconds, is easy to collimate once set up and holds collimation throughout the evening.\u003c\/p\u003e\n\u003cp\u003eTo extend the tube, loosen the three slider lock screws, pull the top part out until it clicks in place, and tighten the screws without over-tightening.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFreedom Find Dual Encoders and Motors\u003c\/h3\u003e\n\u003cp\u003eSky-Watcher's patented Freedom Find dual-encoder technology lets you move the telescope by hand or electronically in either axis without losing its alignment or position information. Each axis has two encoders, one on the axis shaft and one on the motor shaft (US Patent 7,228,253). After you move to a new object, the telescope begins tracking it.\u003c\/p\u003e\n\u003cp\u003eDC servo motors drive both axes with ten slew speeds from 1x to 1000x, and track at sidereal, lunar or solar rate in dual-axis tracking mode. The motor encoders have 1,620,000 counts per revolution and the main axis encoders 11,748.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSynScan AZ with a 42,900+ Object Database\u003c\/h3\u003e\n\u003cp\u003eThe SynScan AZ menu slews automatically to over 42,900 objects, including the complete Messier, NGC and IC catalogs and part of the SAO catalog. The USER key gives access to up to 25 user-defined coordinates.\u003c\/p\u003e\n\u003cp\u003eBefore GoTo, level the base and align the system on two stars, with the \u003ca href=\"\/en-int\/collections\/finder-scopes\"\u003efinderscope\u003c\/a\u003e already aligned to the tube:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrightest-Star alignment:\u003c\/strong\u003e recommended if you are new to the sky. Choose one of eight regions of the sky; the hand control lists the stars brighter than magnitude 1.5 there, you center the first manually, and the mount slews to a second star for you to center.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-Star alignment:\u003c\/strong\u003e choose two stars from a list, at least 60 degrees apart in azimuth.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePower and Computer Control\u003c\/h3\u003e\n\u003cp\u003eThe middle port on the bottom of the hand control is for RS-232 communication with a computer. The manual says the firmware is compatible with the Celestron NexStar 5i\/8i and NexStar GPS command protocol, so planetarium software that supports it can drive the mount.\u003c\/p\u003e\n\u003cp\u003eFrom version 3.0 onward, the SynScan AZ firmware is user upgradable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePower\u003c\/h3\u003e\n\u003cp\u003eThe mount needs 10 to 15 V DC at 1 A through a 2.1 mm center-positive plug, into the Power jack on the altitude motor box. A 12V DC car-lighter power cable is included; the battery pack or \u003ca href=\"\/en-int\/collections\/power-accessories\"\u003epower supply\u003c\/a\u003e is sold separately.\u003c\/p\u003e\n\u003cp\u003eTo avoid tangling the power cable, the manual suggests placing the battery pack or power tank on the round base, behind the front panel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAssembly and Setup\u003c\/h3\u003e\n\u003cp\u003eThe base comes flat-packed: attach the feet to the round base, then the side panels, front panel, handles and motor boxes with the screws, Allen wrenches (2, 4 and 6 mm) and Phillips screwdriver supplied. Then:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eLevel and extend:\u003c\/strong\u003e check the round base with a bubble level, since better leveling gives better tracking. Loosen the three slider lock screws, pull the top part out until it clicks, and tighten them without over-tightening.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount the tube:\u003c\/strong\u003e remove the dust cap and front cover, lift the tube with both hands at the positions shown, lower its side bearings onto the mounting platforms inside the side boards, and tighten the locking screw.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlign the finder:\u003c\/strong\u003e in daylight, center a distant object in the main eyepiece, then adjust the 9x50 straight-through finder to center its crosshairs on it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnect:\u003c\/strong\u003e plug the hand control and motor cables into the altitude motor box, then connect the 12V DC power supply.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFocuser, Finder and Eyepieces\u003c\/h3\u003e\n\u003cp\u003eThe 20mm and 12.5mm 1.25-inch eyepieces give 60x and 96x (1200mm divided by the eyepiece focal length). A 9x50 straight-through finderscope and two dust caps are included.\u003c\/p\u003e\n\u003cp\u003eThe highest practical power is 406x.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eTube and Base\u003c\/h3\u003e\n\u003cp\u003eIt transports as two pieces: the tube, retracted to 835mm and 11 kg, and the base, at 33 lb and 30\" x 20\". Retract the tube, loosen the locking screw and lift the tube off the base.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSolar Safety\u003c\/h3\u003e\n\u003cp\u003eNever use the telescope to look directly at the Sun, as permanent eye damage will result. Use a proper \u003ca href=\"\/en-int\/collections\/solar-filters\"\u003esolar filter\u003c\/a\u003e for viewing the Sun.\u003c\/p\u003e\n\u003cp\u003eWhen observing the Sun, place a dust cap over the finderscope. Never use an eyepiece-type solar filter, and never use the telescope to project sunlight onto another surface: the internal heat build-up will damage the optical elements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the 'Freedom Find' feature on the Flextube 200P SynScan do?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSky-Watcher's patented Freedom Find dual-encoder technology lets you move the telescope by hand or electronically in either axis without losing its alignment or position information. After you move to a new object, the telescope begins tracking it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I assemble the Dobsonian base for the Flextube 200P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe base comes flat-packed: attach the feet to the round base, then the side panels, front panel, handles and motor boxes with the screws, Allen wrenches (2, 4 and 6 mm) and Phillips screwdriver supplied.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of power supply does the Flextube 200P SynScan mount need?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e10 to 15 V DC at 1 A, through a 2.1 mm center-positive plug. A 12V DC car-lighter power cable is included; the battery or power supply is sold separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat magnification do the included eyepieces give?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e60x with the 20mm eyepiece and 96x with the 12.5mm. The highest practical power is 406x.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I perform a 'Brightest-Star Alignment' with the Flextube 200P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt asks you to choose one of eight regions of the sky, lists the stars brighter than magnitude 1.5 there, and has you center the first one manually. The mount then slews to a second star for you to center.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use 2-inch eyepieces with the Flextube 200P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 2\" Crayford focuser takes 2-inch eyepieces, and a 1.25\" adapter is included for the supplied 20mm and 12.5mm eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does it transport?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt transports as two pieces: the tube, retracted to 835mm, and the base. Retract the tube, loosen the locking screw and lift the tube off the base.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Flextube 200P hold collimation well after being collapsed and extended?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe collapsible design is easy to collimate once set up and holds its collimation throughout the evening.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat tracking rates does it have?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSidereal, lunar and solar, in dual-axis tracking mode.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I control it from a computer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The hand control has an RS-232 port, and the manual says it uses the Celestron NexStar 5i\/8i and NexStar GPS command protocol supported by planetarium software.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs it suitable for a beginner?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eEven an inexperienced astronomer can master the SynScan features in a few observing sessions; if you are new to the sky, use Brightest-Star alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I observe the Sun with it?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eOnly with a proper solar filter. Never look directly at the Sun through the telescope, never use an eyepiece-type solar filter, never project sunlight with it, and cap the finderscope when observing the Sun.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eNewtonian with parabolic primary mirror\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Aperture\u003c\/td\u003e\n\u003ctd\u003e203mm (8\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e1200mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/5.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMirror Coatings\u003c\/td\u003e\n\u003ctd\u003eRadiant Aluminum Quartz (RAQ)™ with 94% reflectivity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGlass Type\u003c\/td\u003e\n\u003ctd\u003eBorosilicate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003e2\" Crayford\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Weight\u003c\/td\u003e\n\u003ctd\u003e33 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Dimensions\u003c\/td\u003e\n\u003ctd\u003e30\" x 20\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinder Scope\u003c\/td\u003e\n\u003ctd\u003e9x50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Eyepieces\u003c\/td\u003e\n\u003ctd\u003e20 mm and 12.5 mm (1.25\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification (with included eyepieces)\u003c\/td\u003e\n\u003ctd\u003e60x, 96x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e050234118002\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube\u003c\/td\u003e\n\u003ctd\u003e11 kg, 320 mm x 835 to 1115 mm (skywatcher.com)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount\u003c\/td\u003e\n\u003ctd\u003eYes, SynScan GoTo Dobsonian base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eFlextube 200P Optical Tube Assembly\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDobsonian Base with SynScan GoTo Motors\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSynScan Hand Controller\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e12V DC Car-Lighter Power Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e9x50 Straight-Through Finder Scope\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e20mm Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e12.5mm Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1.25\" Eyepiece Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Caps\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_Flextube_SynScan_GoTo_Collapsible_Dobsonian_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Flextube 200P SynScan GoTo Collapsible Dobsonian Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/apps\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload SynScan Pro App\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/firmware-and-software\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967191085341,"sku":"SW-S11800","price":1930.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher-Flextube-200P-SynScan-S11800-1__65372.1594170784.1280.1280.jpg?v=1684338520"},{"product_id":"sky-watcher-flextube-250p-synscan","title":"Sky-Watcher Flextube 250P SynScan","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e254mm (10-inch) Newtonian optical tube with parabolic primary mirror\u003c\/li\u003e\n\u003cli\u003e1200mm focal length provides a fast f\/4.7 focal ratio\u003c\/li\u003e\n\u003cli\u003eSynScan GoTo system with a 42,900+ object database\u003c\/li\u003e\n\u003cli\u003ePatented Flextube design collapses from 1120mm to 800mm for transport\u003c\/li\u003e\n\u003cli\u003eFreedom Find™ dual encoders allow manual slewing without losing alignment\u003c\/li\u003e\n\u003cli\u003eIncludes 20mm (60x) and 12.5mm (96x) 1.25\" eyepieces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSky-Watcher Flextube 250P SynScan\u003c\/h2\u003e\n\u003cp\u003eThe Sky-Watcher Flextube 250P SynScan is a 10-inch (254mm) GoTo Dobsonian with a paraboloidal primary mirror and a 1200mm focal length (f\/4.7). Its patented collapsible tube retracts from 1120mm to 800mm, the \u003ca href=\"\/en-int\/products\/sky-watcher-v5-synscan-handbox-controller\"\u003eSynScan hand control\u003c\/a\u003e slews to over 42,900 objects, and Sky-Watcher's Freedom Find dual encoders let you push the tube by hand without losing alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eGoTo on a Collapsible Dobsonian\u003c\/h3\u003e\n\u003cp\u003eThe SynScan hand control can point the telescope at a chosen object or tour the sky at the touch of a button, and the motors track the object once found.\u003c\/p\u003e\n\u003cp\u003eEven an inexperienced astronomer can master the SynScan features in a few observing sessions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e254mm f\/4.7 Paraboloidal Optics\u003c\/h3\u003e\n\u003cp\u003eThe 254mm paraboloidal primary mirror has a 1200mm focal length, giving f\/4.7. The highest practical power is 508x.\u003c\/p\u003e\n\u003cp\u003eSky-Watcher fits its collapsible Dobsonians with a 2\" Crayford \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e, which comes with a 2\" to 1.25\" eyepiece adapter. The manual notes that refocusing over time is normal with short focal ratio telescopes before they reach outside temperature, and after changing an eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCollapsible Tube and Setup\u003c\/h3\u003e\n\u003cp\u003eThe 15 kg tube is 380 mm in diameter and 800 to 1120 mm long (skywatcher.com).\u003c\/p\u003e\n\u003cp\u003eUnlike other truss designs, Sky-Watcher's collapsible Dobsonian does not need to be disassembled between uses: it transports as two compact pieces, is ready to use in seconds, is easy to collimate once set up and holds collimation throughout the evening.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSynScan GoTo and Freedom Find Encoders\u003c\/h3\u003e\n\u003cp\u003eDC servo motors drive both axes with ten slew speeds from 1x to 1000x, and track at sidereal, lunar or solar rate in dual-axis tracking mode. GoTo pointing accuracy is up to 5 arc minutes.\u003c\/p\u003e\n\u003cp\u003eSky-Watcher's patented Freedom Find dual-encoder technology lets you move the telescope by hand or electronically in either axis without losing its alignment or position information. Each axis has one encoder on the axis shaft and one on the motor shaft. After you move to a new object, the telescope begins tracking it, with no re-setup in one observing session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSynScan Database and Alignment\u003c\/h3\u003e\n\u003cp\u003eThe menu system slews automatically to over 42,900 objects:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeep sky:\u003c\/strong\u003e the complete Messier (110) and Caldwell (109) lists, 7,840 NGC objects and 5,386 IC objects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStars:\u003c\/strong\u003e 29,523 SAO stars, 212 named stars, 55 double stars and 20 variable stars.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolar system:\u003c\/strong\u003e the planets and the Moon.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUser:\u003c\/strong\u003e up to 25 user-defined coordinates.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBefore GoTo, align the system on two stars. Brightest-Star alignment, recommended if you are new to the sky, asks for a region of the sky and lists the bright stars there; Two-Star alignment lets you choose two stars from a list, at least 60 degrees apart in azimuth. The TOUR key takes you on a preset tour of the sky you are under.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePower and Computer Control\u003c\/h3\u003e\n\u003cp\u003eAn RS-232 cable connects the hand control's RJ-12 port to a computer at 9600 bits per second. Firmware version 3.00 and later work with the Celestron NexStar 5i\/8i and NexStar GPS command protocol, which planetarium software can use to drive the mount.\u003c\/p\u003e\n\u003cp\u003eFrom version 3.0 onward, the hand control firmware is user upgradable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePower\u003c\/h3\u003e\n\u003cp\u003eThe mount needs 10 to 15 V DC at 1 A through a 2.1 mm center-positive plug, into the Power jack on the altitude motor box. A 12V DC car-lighter power cable is included; the battery pack or \u003ca href=\"\/en-int\/collections\/power-accessories\"\u003epower supply\u003c\/a\u003e is sold separately.\u003c\/p\u003e\n\u003cp\u003eTo avoid tangling the power cable, the manual suggests placing the battery pack or power tank on the round base, behind the front panel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSetting Up\u003c\/h3\u003e\n\u003cp\u003eThe base is assembled once. For each session:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eLevel the round base with a bubble level; better leveling gives better tracking.\u003c\/li\u003e\n\u003cli\u003eLoosen the three slider lock screws, pull the top tube out until it clicks, then tighten the screws without over-tightening.\u003c\/li\u003e\n\u003cli\u003eRemove the dust cap and front cover, lift the tube with both hands at the positions shown, lower its side bearings onto the mounting platforms inside the side boards and tighten the locking screw.\u003c\/li\u003e\n\u003cli\u003eConnect the power cable, the Az motor cable, and the hand control cable to their respective ports on the altitude motor box.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eFor Two-Star alignment, enter your location, date and time, choose the first star from the list, center it manually and confirm. The mount then slews to the second star; center it with the direction keys and confirm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFocuser, Finder, Eyepieces and Tension Control\u003c\/h3\u003e\n\u003cp\u003eThe 2\" Crayford focuser comes with a 2\" to 1.25\" eyepiece adapter.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEyepieces:\u003c\/strong\u003e 20 mm (60x) and 12.5 mm (96x), 1.25-inch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinderscope:\u003c\/strong\u003e 9x50 straight-through; align it in daylight before star alignment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTension control handle:\u003c\/strong\u003e patented; adds or reduces friction between the tube and the side boards.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eTube and Base\u003c\/h3\u003e\n\u003cp\u003eIt transports as two pieces: the 15 kg tube, retracted to 800mm, and the base, at 39 lb and 30\" x 20\". Retract the tube, loosen the locking screw and lift the tube off the base.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSolar Safety\u003c\/h3\u003e\n\u003cp\u003eNever use the telescope to look directly at the Sun, as permanent eye damage will result. Use a proper \u003ca href=\"\/en-int\/collections\/solar-filters\"\u003esolar filter\u003c\/a\u003e for viewing the Sun, and place a dust cap over the finderscope. Never use an eyepiece-type solar filter, and never use the telescope to project sunlight onto another surface: the internal heat build-up will damage the optical elements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow many objects are in the database?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eOver 42,900: the complete M, NGC and IC catalogs, partial SAO catalogs and 25 user-defined objects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow difficult is the Flextube 250P SynScan to transport and set up?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt transports as two pieces and is ready to use in seconds. Level the base, extend the tube until it clicks, lower it onto the side boards and tighten the locking screw.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Freedom Find dual-encoder feature work on the Flextube 250P SynScan?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSky-Watcher's patented Freedom Find dual-encoder technology lets you move the telescope by hand or electronically in either axis without losing its alignment or position information. After you move to a new object, the telescope begins tracking it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat magnification do the included eyepieces give?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e60x with the 20 mm eyepiece and 96x with the 12.5 mm. The highest practical power is 508x.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat power supply do I need for the Flextube 250P SynScan mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e10 to 15 V DC at 1 A, through a 2.1 mm center-positive plug. A 12V DC car-lighter power cable is included; the battery or power supply is sold separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I go to a Messier object?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAfter alignment, press the M shortcut key and enter the object's number with the numeric keys. ENTER shows its coordinates, and ENTER again slews the telescope to it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat tracking rates does it have?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSidereal, lunar and solar, in dual-axis tracking mode.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I align the SynScan GoTo system on the Flextube 250P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBefore GoTo, align the system on two stars. Brightest-Star alignment, recommended if you are new to the sky, asks for a region of the sky and lists the bright stars there; Two-Star alignment lets you choose two stars from a list, at least 60 degrees apart in azimuth.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use 2-inch eyepieces with the Flextube 250P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The 2\" Crayford focuser takes 2-inch eyepieces, and a 2\" to 1.25\" adapter is included for the supplied eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow accurate is the GoTo pointing on the Flextube 250P SynScan?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eGoTo pointing accuracy is up to 5 arc minutes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I still point the telescope by hand if I don't want to use GoTo?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. In Auto-Tracking mode you move the telescope by hand or electronically without deactivating tracking; after moving to a new object, it begins tracking it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill I need to collimate the Flextube 250P often?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe collapsible design is easy to collimate once set up and holds its collimation throughout the evening.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e050234118101\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eNewtonian with parabolic primary mirror\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Aperture\u003c\/td\u003e\n\u003ctd\u003e254mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e1200mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/4.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMirror Coatings\u003c\/td\u003e\n\u003ctd\u003eRadiant Aluminum Quartz (RAQ)™ with 94% reflectivity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGlass Type\u003c\/td\u003e\n\u003ctd\u003eBorosilicate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Finderscope\u003c\/td\u003e\n\u003ctd\u003e9x50 Straight-Through\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Eyepieces\u003c\/td\u003e\n\u003ctd\u003e20 mm and 12.5 mm (1.25\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification\u003c\/td\u003e\n\u003ctd\u003e60x, 96x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003e2\" Crayford\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Weight\u003c\/td\u003e\n\u003ctd\u003e39 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Dimensions\u003c\/td\u003e\n\u003ctd\u003e30\" x 20\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube\u003c\/td\u003e\n\u003ctd\u003e15 kg, 380 mm x 800 to 1120 mm (skywatcher.com)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount\u003c\/td\u003e\n\u003ctd\u003eYes, SynScan GoTo Dobsonian base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eFlextube 250P 10\" Collapsible OTA\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSynScan GoTo Dobsonian Base\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSynScan V5 Hand Controller\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e9x50 Straight-Through Finderscope\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e20mm Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e12.5mm Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2\" to 1.25\" Eyepiece Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Caps\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e12V DC Car-Lighter Power Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_Flextube_SynScan_GoTo_Collapsible_Dobsonian_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_SynScan_V5_Hand_Control_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload SynScan V5 Hand Controller Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/apps\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload SynScan Pro App\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/firmware-and-software\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967191314717,"sku":"SW-S11810","price":2280.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher-Flextube-250P-SynScan-S11810-1__58965.1594170785.1280.1280.jpg?v=1684338533"},{"product_id":"sky-watcher-flextube-300p-synscan","title":"Sky-Watcher Flextube 300P SynScan","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e305mm (12\") parabolic primary mirror\u003c\/li\u003e\n\u003cli\u003e1500mm focal length at a fast f\/4.9 focal ratio\u003c\/li\u003e\n\u003cli\u003eCollapsible Flextube design reduces tube length from 1400mm to 920mm\u003c\/li\u003e\n\u003cli\u003eSynScan GoTo system with a 42,900+ object database\u003c\/li\u003e\n\u003cli\u003ePatented Freedom Find™ dual-encoder technology allows manual movement without losing alignment\u003c\/li\u003e\n\u003cli\u003e2-inch single-speed Crayford-style focuser with 1.25\" adapter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSky-Watcher Flextube 300P SynScan\u003c\/h2\u003e\n\u003cp\u003eThe Sky-Watcher Flextube 300P SynScan is a 12-inch (305mm) GoTo Dobsonian with a paraboloidal primary mirror and a 1500mm focal length (f\/4.9). Its patented collapsible tube retracts from 1400mm to 920mm, the \u003ca href=\"\/en-int\/products\/sky-watcher-v5-synscan-handbox-controller\"\u003eSynScan hand control\u003c\/a\u003e slews to over 42,900 objects, and Sky-Watcher's Freedom Find dual encoders let you push the tube by hand without losing alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eGoTo on a Collapsible Dobsonian\u003c\/h3\u003e\n\u003cp\u003eThe SynScan hand control can point the telescope at a chosen object or tour the sky at the touch of a button, and the motors track the object once found. Even an inexperienced astronomer can master its features in a few observing sessions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e305mm f\/4.9 Paraboloidal Optics\u003c\/h3\u003e\n\u003cp\u003eThe 305mm paraboloidal primary mirror has a 1500mm focal length, giving f\/4.9, with a 70mm secondary mirror. The highest practical power is 610x.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCollapsible Tube: 1400mm to 920mm\u003c\/h3\u003e\n\u003cp\u003eThe 21 kg tube is 450 mm in diameter and 920 to 1400 mm long (skywatcher.com).\u003c\/p\u003e\n\u003cp\u003eUnlike other truss designs, Sky-Watcher's collapsible Dobsonian does not need to be disassembled between uses: it transports as two compact pieces, is ready to use in seconds, is easy to collimate once set up and holds collimation throughout the evening. Sky-Watcher's patented tension control handle adds or reduces friction on the tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFreedom Find Dual Encoders and Motors\u003c\/h3\u003e\n\u003cp\u003eSky-Watcher's patented Freedom Find dual-encoder technology lets you move the telescope by hand or electronically in either axis without losing its alignment or position information. Each axis has one encoder on the axis shaft and one on the motor shaft; the motor encoders have 1,620,000 counts per revolution and the main axis encoders 11,748.\u003c\/p\u003e\n\u003cp\u003eAfter you move to a new object, the telescope begins tracking it, with no re-setup in one observing session. DC servo motors drive both axes with ten slew speeds from 1x to 1000x, track at sidereal, lunar or solar rate in dual-axis mode, and give GoTo pointing accuracy of up to 5 arc minutes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSynScan Database and Alignment\u003c\/h3\u003e\n\u003cp\u003eThe menu system slews automatically to over 42,900 objects: the complete Messier (110) and Caldwell (109) lists, 7,840 NGC and 5,386 IC objects, 29,523 SAO stars, 212 named stars, 55 double stars, 20 variable stars, the planets, and up to 25 user-defined coordinates. The TOUR key takes you on a preset tour of the sky you are under.\u003c\/p\u003e\n\u003cp\u003eBefore GoTo, level the base, align the finderscope, and align the system on two stars:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrightest-Star alignment:\u003c\/strong\u003e recommended if you are new to the sky. Choose one of eight regions of the sky; the hand control lists the stars brighter than magnitude 1.5 there, you center the first, and the mount slews to a second for you to center.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-Star alignment:\u003c\/strong\u003e choose two stars from a list, at least 60 degrees apart in azimuth.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eComputer Control\u003c\/h3\u003e\n\u003cp\u003eAn RS-232 cable connects the hand control's RJ-12 port to a computer at 9600 bits per second. The manual says firmware version 3.00 and later work with the Celestron NexStar 5i\/8i and NexStar GPS command protocol, which planetarium software can use to drive the mount.\u003c\/p\u003e\n\u003cp\u003eThe hand control firmware is user upgradable from version 3.0, and the hand control can also display the motor control board's firmware version.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePower\u003c\/h3\u003e\n\u003cp\u003eThe mount needs 10 to 15 V DC at 1 A through a 2.1 mm center-positive plug, into the Power jack on the altitude motor box. A 12V DC car-lighter power cable is included; the battery pack or \u003ca href=\"\/en-int\/collections\/power-accessories\"\u003epower supply\u003c\/a\u003e is sold separately.\u003c\/p\u003e\n\u003cp\u003eTo avoid tangling the power cable, the manual suggests placing the battery pack or power tank on the round base, behind the front panel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAssembly and Setup\u003c\/h3\u003e\n\u003cp\u003eThe base comes flat-packed: attach the feet to the round base, then the side panels with their reinforce boards (fixed with eight M5x60 hex socket cap screws), the front panel, handles and motor boxes, using the screws, Allen wrenches and Phillips screwdriver supplied.\u003c\/p\u003e\n\u003cp\u003eFor each session, level the round base with a bubble level, loosen the three slider lock screws and pull the top tube out until it clicks, then tighten the screws without over-tightening. Remove the dust cap and front cover, lift the tube by the indicated positions onto the mounting platforms inside the side boards, and tighten the locking screw. Connect the power and hand control cables, enter your location, date and time, and align.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFocuser, Finder and Eyepieces\u003c\/h3\u003e\n\u003cp\u003eThe 2\" single-speed Crayford-style \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e comes with a 2\" to 1.25\" eyepiece adapter. A 9x50 straight-through finderscope, dust caps and a 12V DC car-lighter power cable are included.\u003c\/p\u003e\n\u003cp\u003eThe two 1.25-inch eyepieces:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e20mm eyepiece:\u003c\/strong\u003e 1500 \/ 20 = 75x.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12.5mm eyepiece:\u003c\/strong\u003e 1500 \/ 12.5 = 120x.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eTube, Base and Care\u003c\/h3\u003e\n\u003cp\u003eThe tube weighs 21 kg (skywatcher.com) and the base 53 lb (Sky-Watcher USA), which lists the base at 32.5\" x 25\". They transport as two pieces: retract the tube, loosen the locking screw and lift it off the base.\u003c\/p\u003e\n\u003cp\u003eThe collapsible design is easy to collimate once set up and holds its collimation throughout the evening. Keep the dust caps on when the telescope is not in use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSolar Safety\u003c\/h3\u003e\n\u003cp\u003eNever use the telescope to look directly at the Sun, as permanent eye damage will result. Use a proper \u003ca href=\"\/en-int\/collections\/solar-filters\"\u003esolar filter\u003c\/a\u003e for viewing the Sun.\u003c\/p\u003e\n\u003cp\u003eWhen observing the Sun, place a dust cap over the finderscope. Never use an eyepiece-type solar filter, and never use the telescope to project sunlight onto another surface: the internal heat build-up will damage the optical elements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of power supply does the Sky-Watcher Flextube 300P SynScan need?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e10 to 15 V DC at 1 A, through a 2.1 mm center-positive plug. A 12V DC car-lighter power cable is included; the battery or power supply is sold separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow heavy are the tube and base?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe tube weighs 21 kg (skywatcher.com) and the base 53 lb (Sky-Watcher USA). They transport as two pieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is \"Freedom Find\" on the Flextube 300P SynScan, and why is it useful?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSky-Watcher's patented Freedom Find dual-encoder technology lets you move the telescope by hand or electronically in either axis without losing its alignment or position information. After you move to a new object, the telescope begins tracking it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use 2-inch eyepieces with the Sky-Watcher Flextube 300P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The 2\" Crayford-style focuser takes 2-inch eyepieces, and a 2\" to 1.25\" adapter is included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the collapsible Flextube design hold collimation well?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe collapsible design is easy to collimate once set up and holds its collimation throughout the evening.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I align the Flextube 300P SynScan GoTo system?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eLevel the base and align the \u003ca href=\"\/en-int\/collections\/finder-scopes\"\u003efinder\u003c\/a\u003e first. Brightest-Star alignment, recommended if you are new to the sky, asks for one of eight regions and lists the stars brighter than magnitude 1.5 there; Two-Star alignment lets you choose two stars from a list, at least 60 degrees apart in azimuth. You center the first star manually, and the mount slews to the second for you to center.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow accurate is the GoTo pointing on the Flextube 300P SynScan?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eGoTo pointing accuracy is up to 5 arc minutes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I still point the Flextube 300P by hand and have it track objects?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. In Auto-Tracking mode you move the telescope by hand or electronically without deactivating tracking; after moving to a new object it tracks it, and the hand control works as a digital setting circle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I go to a Messier object?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAfter alignment, press the M shortcut key and enter the object's number with the numeric keys. ENTER shows its coordinates, and ENTER again slews the telescope to it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat magnification do the included eyepieces give?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e75x with the 20 mm eyepiece and 120x with the 12.5 mm. The highest practical power is 610x.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat tracking rates does it have?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSidereal, lunar and solar, in dual-axis tracking mode.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I observe the Sun with it?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eOnly with a proper solar filter. Never look directly at the Sun through the telescope, never use an eyepiece-type solar filter, never project sunlight with it, and cap the finderscope when observing the Sun.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e050234118200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eNewtonian with parabolic primary mirror\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Aperture\u003c\/td\u003e\n\u003ctd\u003e305mm (12\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e1500mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/4.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMirror Coatings\u003c\/td\u003e\n\u003ctd\u003eRadiant Aluminum Quartz (RAQ)™ with 94% reflectivity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGlass Type\u003c\/td\u003e\n\u003ctd\u003eBorosilicate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecondary Mirror Diameter\u003c\/td\u003e\n\u003ctd\u003e70mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003e2\" Crayford-Style, Single Speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Weight\u003c\/td\u003e\n\u003ctd\u003e53 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Dimensions\u003c\/td\u003e\n\u003ctd\u003e32.5\" x 25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Finderscope\u003c\/td\u003e\n\u003ctd\u003e9x50 Straight-Through\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Eyepieces\u003c\/td\u003e\n\u003ctd\u003e20 mm and 12.5 mm (1.25\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification (with included eyepieces)\u003c\/td\u003e\n\u003ctd\u003e75x \u0026amp; 120x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube\u003c\/td\u003e\n\u003ctd\u003e21 kg, 450 mm x 920 to 1400 mm (skywatcher.com)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount\u003c\/td\u003e\n\u003ctd\u003eYes, SynScan GoTo Dobsonian base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eFlextube 300P Optical Tube Assembly\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSynScan GoTo Dobsonian Base\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSynScan V5 Hand Controller\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e9x50 Straight-Through Finderscope\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e20mm Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e12.5mm Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2\" to 1.25\" Eyepiece Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Caps\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e12V DC Car-Lighter Power Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_Flextube_SynScan_GoTo_Collapsible_Dobsonian_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Flextube SynScan GoTo Collapsible Dobsonian Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/firmware-and-software\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/apps\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload SynScan Pro App\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/eq-mod.sourceforge.net\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload EQMOD Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967191347485,"sku":"SW-S11820","price":3450.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher-Flextube-300P-SynScan-S11820-1__55423.1594170786.1280.1280.jpg?v=1684338494"},{"product_id":"sky-watcher-flextube-350p-synscan","title":"Sky-Watcher Flextube 350P SynScan","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e356mm (14-inch) Newtonian reflector optical tube\u003c\/li\u003e\n\u003cli\u003ef\/4.6 focal ratio (Sky-Watcher USA data)\u003c\/li\u003e\n\u003cli\u003eCollapsible Flextube design extends from 970mm to 1510mm\u003c\/li\u003e\n\u003cli\u003eSynScan GoTo computerized Dobsonian base with Freedom Find dual encoders\u003c\/li\u003e\n\u003cli\u003e2\" dual-speed Crayford focuser\u003c\/li\u003e\n\u003cli\u003eIncludes 20mm and 12.5mm eyepieces for 82.5x and 132x magnification\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSky-Watcher Flextube 350P SynScan\u003c\/h2\u003e\n\u003cp\u003eThe Sky-Watcher Flextube 350P SynScan is a 14-inch (356mm) GoTo Dobsonian with a paraboloidal primary mirror. Its patented collapsible tube retracts from 1510mm to 970mm, the \u003ca href=\"\/en-int\/products\/sky-watcher-v5-synscan-handbox-controller\"\u003eSynScan hand control\u003c\/a\u003e finds and tracks objects from a database of over 42,900, and Sky-Watcher's Freedom Find dual encoders let you push the tube by hand without losing alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eGoTo on a Collapsible Dobsonian\u003c\/h3\u003e\n\u003cp\u003eThe SynScan hand control can point the telescope at a chosen object or tour the sky at the touch of a button, and the motors track the object once found. Even an inexperienced astronomer can master its features in a few observing sessions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e356mm Paraboloidal Optics\u003c\/h3\u003e\n\u003cp\u003eThe primary mirror is paraboloidal. Sky-Watcher USA lists 356mm at f\/4.6; skywatcher.com lists the 14-inch at 355mm and f\/4.5, with a highest practical power of 710x.\u003c\/p\u003e\n\u003cp\u003eThe included 20 mm and 12.5 mm 1.25-inch eyepieces give 82.5x and 132x with the focal length in Sky-Watcher USA's data.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCollapsible Tube: 1510mm to 970mm\u003c\/h3\u003e\n\u003cp\u003eThe 23.5 kg tube is 500 mm in diameter and 970 to 1510 mm long (skywatcher.com).\u003c\/p\u003e\n\u003cp\u003eUnlike other truss designs, Sky-Watcher's collapsible Dobsonian does not need to be disassembled between uses: it transports as two compact pieces, is ready to use in seconds, is easy to collimate once set up and holds collimation throughout the evening.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSynScan GoTo and Freedom Find\u003c\/h3\u003e\n\u003cp\u003eSky-Watcher's patented Freedom Find dual-encoder technology lets you move the telescope by hand or electronically in either axis without losing its alignment or position information. Each axis has one encoder on the axis shaft and one on the motor shaft.\u003c\/p\u003e\n\u003cp\u003eAfter you move to a new object, the telescope begins tracking it, with no re-setup in one observing session. DC servo motors give ten slew speeds, from 1x at Rate 0 to 1000x at Rate 9; the manual suggests Rate 4 for centering in the \u003ca href=\"\/en-int\/collections\/finder-scopes\"\u003efinderscope\u003c\/a\u003e and Rate 3 or less in the eyepiece. Tracking is at sidereal, lunar or solar rate, on both axes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDatabase and Alignment\u003c\/h3\u003e\n\u003cp\u003eThe menu system slews automatically to over 42,900 objects: the complete Messier (110) and Caldwell (109) lists, 7,840 NGC and 5,386 IC objects, 29,523 SAO stars, 212 named stars, 55 double stars, 20 variable stars, the planets, and up to 25 user-defined coordinates. The TOUR key takes you on a preset tour of the sky you are under.\u003c\/p\u003e\n\u003cp\u003eBefore GoTo, level the base, align the finderscope and align the system on two stars. Brightest-Star alignment, recommended if you are new to the sky, asks you to choose one of eight regions and lists the stars brighter than magnitude 1.5 there; Two-Star alignment lets you choose two stars from a list, at least 60 degrees apart in azimuth. You center the first manually, and the mount slews to the second for you to center.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eComputer Control\u003c\/h3\u003e\n\u003cp\u003eAn RS-232 cable connects the hand control's RJ-12 port to a computer at 9600 bits per second. The manual says firmware version 3.00 and later work with the Celestron NexStar 5i\/8i and NexStar GPS command protocol, which planetarium software can use to drive the mount. The firmware is user upgradable from version 3.0.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePower\u003c\/h3\u003e\n\u003cp\u003eThe mount needs 10 to 15 V DC at 1 A through a 2.1 mm center-positive plug, into the Power jack on the altitude motor box. A 12V DC car-lighter power cable is included; the battery pack or \u003ca href=\"\/en-int\/collections\/power-accessories\"\u003epower supply\u003c\/a\u003e is sold separately.\u003c\/p\u003e\n\u003cp\u003eTo avoid tangling the power cable, the manual suggests placing the battery pack or power tank on the round base, behind the front panel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSetting Up\u003c\/h3\u003e\n\u003cp\u003eLevel the round base with a bubble level; better leveling gives better tracking. Loosen the three slider lock screws and pull the top tube out until it clicks, then tighten the screws without over-tightening. Remove the dust cap and front cover, lift the tube at the indicated positions onto the mounting platforms inside the side boards, and tighten the locking screw.\u003c\/p\u003e\n\u003cp\u003eConnect the hand control and power cables to the altitude motor box, enter your location, date and time, and align on two stars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFocuser, Finder and Eyepieces\u003c\/h3\u003e\n\u003cp\u003eThe 2\" dual-speed Crayford \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e comes with a 2\" to 1.25\" eyepiece adapter, and 20mm and 12.5mm 1.25-inch eyepieces are included.\u003c\/p\u003e\n\u003cp\u003eA 9x50 straight-through finderscope, the hand controller cable, dust caps and a 12V DC car-lighter power cable are included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eTube and Base\u003c\/h3\u003e\n\u003cp\u003eThe tube weighs 23.5 kg (skywatcher.com) and the base 94 lb (Sky-Watcher USA), which lists the base at 36\" x 31\". They transport as separate pieces: retract the tube, loosen the locking screw and lift it off the base.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSolar Safety\u003c\/h3\u003e\n\u003cp\u003eNever use the telescope to look directly at the Sun, as permanent eye damage will result. Use a proper \u003ca href=\"\/en-int\/collections\/solar-filters\"\u003esolar filter\u003c\/a\u003e for viewing the Sun.\u003c\/p\u003e\n\u003cp\u003eWhen observing the Sun, place a dust cap over the finderscope. Never use an eyepiece-type solar filter, and never use the telescope to project sunlight onto another surface: the internal heat build-up will damage the optical elements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Freedom Find feature on the Flextube 350P SynScan work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSky-Watcher's patented Freedom Find dual-encoder technology lets you move the telescope by hand or electronically in either axis without losing its alignment or position information. After you move to a new object, the telescope begins tracking it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow heavy are the tube and base?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe tube weighs 23.5 kg (skywatcher.com) and the base 94 lb (Sky-Watcher USA). They transport as separate pieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of power supply does the Flextube 350P SynScan require?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e10 to 15 V DC at 1 A, through a 2.1 mm center-positive plug. A 12V DC car-lighter power cable is included; the battery or power supply is sold separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes it hold collimation?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe collapsible design is easy to collimate once set up and holds its collimation throughout the evening.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use 2-inch eyepieces with the Flextube 350P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The 2\" dual-speed Crayford focuser takes 2-inch eyepieces, and a 2\" to 1.25\" adapter is included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow many objects are in the Flextube 350P's SynScan database?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eOver 42,900: the complete M, NGC and IC catalogs, partial SAO catalogs and 25 user-defined objects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I align the GoTo system on the Flextube 350P SynScan?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eLevel the base and align the finder first. Brightest-Star alignment, recommended if you are new to the sky, asks for one of eight regions and lists the stars brighter than magnitude 1.5 there; Two-Star alignment lets you choose two stars from a list, at least 60 degrees apart in azimuth. You center the first star manually, and the mount slews to the second for you to center.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat tracking rates does it have?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSidereal, lunar and solar, in dual-axis tracking mode.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I set it up for a session?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eLevel the base, extend the tube until it clicks and lock the slider screws, lower the tube onto the side boards and tighten the locking screw. Connect power and the hand control, enter your location, date and time, and align on two stars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I control the Flextube 350P with my computer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The hand control has an RS-232 port, and the manual says it uses the Celestron NexStar 5i\/8i and NexStar GPS command protocol supported by planetarium software.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat slew speeds does it have?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTen, from 1x at Rate 0 to 1000x at Rate 9. The manual suggests Rate 4 for centering in the finderscope and Rate 3 or less for centering in the eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I observe the Sun with it?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eOnly with a proper solar filter. Never look directly at the Sun through the telescope, never use an eyepiece-type solar filter, never project sunlight with it, and cap the finderscope when observing the Sun.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e050234118309\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eNewtonian with parabolic primary mirror\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMirror Coatings\u003c\/td\u003e\n\u003ctd\u003eRadiant Aluminum Quartz (RAQ)™ coatings with 94% reflectivity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGlass Type\u003c\/td\u003e\n\u003ctd\u003eBorosilicate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Aperture\u003c\/td\u003e\n\u003ctd\u003e356mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/4.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e1650mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003e2\" Dual Speed Crayford\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDobsonian Base Weight\u003c\/td\u003e\n\u003ctd\u003e94 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDobsonian Base Measurements\u003c\/td\u003e\n\u003ctd\u003e36\" x 31\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinder\u003c\/td\u003e\n\u003ctd\u003e9x50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Eyepieces\u003c\/td\u003e\n\u003ctd\u003e20 mm and 12.5 mm (1.25\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification w\/ Included Eyepieces\u003c\/td\u003e\n\u003ctd\u003e82.5x \/ 132x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube\u003c\/td\u003e\n\u003ctd\u003e23.5 kg, 500 mm x 970 to 1510 mm (skywatcher.com)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount\u003c\/td\u003e\n\u003ctd\u003eYes, SynScan GoTo Dobsonian base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eFlextube 350P Optical Tube Assembly\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSynScan GoTo Dobsonian Base\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSynScan V5 Hand Controller\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eHand Controller Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e12V DC Car-Lighter Power Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e9x50 Straight-Through Finder Scope\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e20mm Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e12.5mm Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2\" to 1.25\" Eyepiece Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Caps\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_Flextube_SynScan_GoTo_Collapsible_Dobsonian_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Flextube SynScan GoTo Collapsible Dobsonian Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_SynScan_V5_Hand_Control_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload SynScan V5 Hand Controller Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/apps\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload SynScan Pro App\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/firmware-and-software\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967191380253,"sku":"SW-S11830","price":4830.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher-Flextube-350P-SynScan-S11830-1__23891.1594170787.1280.1280.jpg?v=1684338507"},{"product_id":"sky-watcher-flextube-400p-synscan","title":"Sky-Watcher Flextube 400P SynScan","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e406mm (16\") Parabolic Primary Mirror\u003c\/li\u003e\n\u003cli\u003e1800mm Focal Length, f\/4.4 Focal Ratio\u003c\/li\u003e\n\u003cli\u003eCollapsible Flextube Design (1071mm to 1685mm)\u003c\/li\u003e\n\u003cli\u003eSynScan GoTo Dobsonian Base with Freedom Find Technology\u003c\/li\u003e\n\u003cli\u003e2\" Dual-Speed Crayford Focuser\u003c\/li\u003e\n\u003cli\u003eIncludes 20mm (90x) and 12.5mm (144x) 1.25\" Eyepieces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSky-Watcher Flextube 400P SynScan\u003c\/h2\u003e\n\u003cp\u003eThe Sky-Watcher Flextube 400P SynScan is a 16-inch (406mm) GoTo Dobsonian with a paraboloidal primary mirror and a 1800mm focal length (f\/4.4). Its patented collapsible tube retracts from 1685mm to 1071mm, the \u003ca href=\"\/en-int\/products\/sky-watcher-v5-synscan-handbox-controller\"\u003eSynScan hand control\u003c\/a\u003e finds and tracks objects from a database of over 42,900, and Sky-Watcher's Freedom Find dual encoders let you push the tube by hand without losing alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eGoTo on a Collapsible Dobsonian\u003c\/h3\u003e\n\u003cp\u003eThe SynScan hand control can point the telescope at a chosen object or tour the sky at the touch of a button, and the motors track the object once found. Even an inexperienced astronomer can master its features in a few observing sessions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e406mm f\/4.4 Optics\u003c\/h3\u003e\n\u003cp\u003eThe 406mm primary mirror has an 1800mm focal length, giving f\/4.4. The highest practical power is 812x.\u003c\/p\u003e\n\u003cp\u003eOptical details:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary mirror:\u003c\/strong\u003e paraboloidal, 406mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary mirror:\u003c\/strong\u003e 102mm (Sky-Watcher USA).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEyepieces:\u003c\/strong\u003e 20 mm (90x) and 12.5 mm (144x), 1.25-inch.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCollapsible Tube: 1685mm to 1071mm\u003c\/h3\u003e\n\u003cp\u003eThe 30 kg tube is 540 mm in diameter and 1071 to 1685 mm long (skywatcher.com). Unlike other truss designs, Sky-Watcher's collapsible Dobsonian does not need to be disassembled between uses: it transports as two compact pieces, is ready to use in seconds, is easy to collimate once set up and holds collimation throughout the evening.\u003c\/p\u003e\n\u003cp\u003eLevel the round base, loosen the three slider lock screws and pull the top tube out until it clicks, then tighten the screws without over-tightening. Remove the dust cap and front cover, lift the tube at the indicated positions onto the mounting platforms inside the side boards, and tighten the locking screw.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDobsonian Base and Freedom Find\u003c\/h3\u003e\n\u003cp\u003eThe base weighs 105 lb and measures 36\" x 34\". The base comes flat-packed and is assembled with the screws, Allen wrenches and Phillips screwdriver supplied.\u003c\/p\u003e\n\u003cp\u003eSky-Watcher's patented Freedom Find dual-encoder technology lets you move the telescope by hand or electronically in either axis without losing its alignment or position information. Each axis has one encoder on the axis shaft and one on the motor shaft. After you move to a new object, the telescope begins tracking it, with no re-setup in one observing session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSynScan GoTo, Tracking and Power\u003c\/h3\u003e\n\u003cp\u003eThe SynScan hand control can point the telescope at a chosen object or tour the sky at the touch of a button; its menu system slews automatically to over 42,900 objects: the complete Messier (110) and Caldwell (109) lists, 7,840 NGC and 5,386 IC objects, 29,523 SAO stars, 212 named stars, 55 double stars, 20 variable stars, the planets, and up to 25 user-defined coordinates.\u003c\/p\u003e\n\u003cp\u003eGoTo pointing accuracy is up to 5 arc minutes.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlignment:\u003c\/strong\u003e Brightest-Star or Two-Star alignment; choose stars at least 60 degrees apart in azimuth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTracking:\u003c\/strong\u003e sidereal, lunar and solar rates in dual-axis tracking mode, driven by DC servo motors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlew speeds:\u003c\/strong\u003e ten, from 1x to 1000x; the manual suggests Rate 4 for centering in the finderscope and Rate 3 or less in the eyepiece.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eComputer Control\u003c\/h3\u003e\n\u003cp\u003eAn RS-232 cable connects the hand control's RJ-12 port to a computer at 9600 bits per second.\u003c\/p\u003e\n\u003cp\u003eThe firmware is user upgradable from version 3.0, and the manual says version 3.00 and later work with the Celestron NexStar 5i\/8i and NexStar GPS command protocol, which planetarium software can use to drive the mount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePower\u003c\/h3\u003e\n\u003cp\u003ePower: 10 to 15 V DC at 1 A, through a 2.1 mm center-positive plug into the Power jack on the altitude motor box. A 12V DC car-lighter power cable is included; the battery or \u003ca href=\"\/en-int\/collections\/power-accessories\"\u003epower supply\u003c\/a\u003e is sold separately.\u003c\/p\u003e\n\u003cp\u003eTo avoid tangling the power cable, the manual suggests placing the battery pack or power tank on the round base, behind the front panel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eTwo-Star Alignment\u003c\/h3\u003e\n\u003cp\u003eAlign the 9x50 finderscope with the tube first. Then enter your location, date and time and choose 2-Star Align. Pick a star you can identify from the list, center it in the \u003ca href=\"\/en-int\/collections\/finder-scopes\"\u003efinder\u003c\/a\u003e and then the eyepiece, and press ENTER. Choose the second star; the mount slews near it, and you center it with the direction keys and press ENTER.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFocuser, Finder and Eyepieces\u003c\/h3\u003e\n\u003cp\u003eThe 2\" dual-speed Crayford \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e takes 2-inch eyepieces and comes with a 1.25\" eyepiece adapter.\u003c\/p\u003e\n\u003cp\u003eA 20mm and a 12.5mm 1.25-inch eyepiece, a 9x50 straight-through finderscope, dust caps and the car-lighter power cable are included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eTube and Base\u003c\/h3\u003e\n\u003cp\u003eThe tube weighs 30 kg (skywatcher.com) and the base 105 lb (Sky-Watcher USA). They transport as separate pieces: retract the tube, loosen the locking screw and lift it off the base.\u003c\/p\u003e\n\u003cp\u003eThe collapsible design is easy to collimate once set up and holds its collimation throughout the evening.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSolar Safety\u003c\/h3\u003e\n\u003cp\u003eNever use the telescope to look directly at the Sun, as permanent eye damage will result. Use a proper \u003ca href=\"\/en-int\/collections\/solar-filters\"\u003esolar filter\u003c\/a\u003e for viewing the Sun.\u003c\/p\u003e\n\u003cp\u003eWhen observing the Sun, place a dust cap over the finderscope. Never use an eyepiece-type solar filter, and never use the telescope to project sunlight onto another surface: the internal heat build-up will damage the optical elements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow heavy are the tube and base?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe tube weighs 30 kg (skywatcher.com) and the base 105 lb (Sky-Watcher USA). They transport as separate pieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat power supply does the Flextube 400P SynScan system need?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e10 to 15 V DC at 1 A, through a 2.1 mm center-positive plug. A 12V DC car-lighter power cable is included; the battery or power supply is sold separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I move it by hand?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Freedom Find lets you move the telescope by hand or electronically in either axis without losing alignment, and Auto-Tracking mode lets you point it by hand with automatic tracking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow many objects are in the database?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eOver 42,900: the complete M, NGC and IC catalogs, partial SAO catalogs and 25 user-defined objects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I align the Flextube 400P if I don't know the names of any stars?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eUse Brightest-Star alignment. It asks you to choose one of eight regions of the sky, lists the stars brighter than magnitude 1.5 there, and has you center the first one manually. The mount then slews to a second star for you to center.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat magnification do the included eyepieces give?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e90x with the 20 mm eyepiece and 144x with the 12.5 mm. The highest practical power is 812x.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Flextube 400P need to be disassembled for transport?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. Unlike other truss designs, it transports as two pieces: the tube, collapsed from 1685mm to 1071mm, and the base.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat tracking rates does the Flextube 400P SynScan support?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSidereal, lunar and solar, in dual-axis tracking mode.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use 2-inch eyepieces with the Flextube 400P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The 2\" dual-speed Crayford focuser takes 2-inch eyepieces; a 1.25\" adapter is included for the supplied eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I update the firmware on the Flextube 400P's SynScan V5 hand controller?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe manual says the hand control firmware is user upgradable from version 3.0, with the latest version downloadable from Sky-Watcher.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes it hold collimation?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe collapsible design is easy to collimate once set up and holds its collimation throughout the evening.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Flextube 400P to look at the Sun?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eOnly with a proper solar filter. Never look directly at the Sun through the telescope, never use an eyepiece-type solar filter, never project sunlight with it, and cap the finderscope when observing the Sun.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e050234118408\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eNewtonian with parabolic primary mirror\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Aperture\u003c\/td\u003e\n\u003ctd\u003e406mm (16\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e1800mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/4.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGlass Type\u003c\/td\u003e\n\u003ctd\u003eBorosilicate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMirror Coatings\u003c\/td\u003e\n\u003ctd\u003eRadiant Aluminum Quartz (RAQ)™ with 94% reflectivity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecondary Diameter\u003c\/td\u003e\n\u003ctd\u003e102mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003e2\" Dual-Speed Crayford\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Weight\u003c\/td\u003e\n\u003ctd\u003e105 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Dimensions\u003c\/td\u003e\n\u003ctd\u003e36\" x 34\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinder Scope\u003c\/td\u003e\n\u003ctd\u003e9x50 Straight-Through\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Eyepieces\u003c\/td\u003e\n\u003ctd\u003e20 mm and 12.5 mm (1.25\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification (with included eyepieces)\u003c\/td\u003e\n\u003ctd\u003e90x and 144x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube\u003c\/td\u003e\n\u003ctd\u003e30 kg, 540 mm x 1071 to 1685 mm (skywatcher.com)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount\u003c\/td\u003e\n\u003ctd\u003eYes, SynScan GoTo Dobsonian base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eFlextube 400P OTA\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSynScan GoTo Dobsonian Base\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSynScan V5 Hand Controller\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e9x50 Straight-Through Finderscope\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e20mm Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e12.5mm Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1.25\" Eyepiece Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Caps\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e12V DC Car-Lighter Power Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_Flextube_SynScan_GoTo_Collapsible_Dobsonian_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Flextube 400P SynScan GoTo Collapsible Dobsonian Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_SynScan_V5_Hand_Control_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload SynScan V5 Hand Control Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/apps\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload SynScan Pro App\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/firmware-and-software\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967191413021,"sku":"SW-S11840","price":6210.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher-Flextube-400P-SynScan-S11840-1__28423.1594170788.1280.1280.jpg?v=1684338520"},{"product_id":"sky-watcher-star-adventurer-2i-pro-pack","title":"Sky-Watcher Star Adventurer 2i Pro Pack","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eEquatorial tracking platform with a 5 kg (11 lb) payload capacity\u003c\/li\u003e\n\u003cli\u003eBuilt-in Wi-Fi for full control via the free Star Adventurer mini Console app for iOS and Android\u003c\/li\u003e\n\u003cli\u003ePre-programmed tracking speeds for celestial, solar, and lunar targets\u003c\/li\u003e\n\u003cli\u003ePro Pack includes latitude (EQ) base, counterweight kit, and adjustable dovetail L-bracket\u003c\/li\u003e\n\u003cli\u003eSingle-axis ST-4 compatible autoguider port for improved tracking accuracy\u003c\/li\u003e\n\u003cli\u003eMount head weighs only 1 kg (2.2 lb) for ultimate portability\u003c\/li\u003e\n\u003cli\u003ePowered by 4 AA batteries or an external 5V mini-B USB source\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSky-Watcher Star Adventurer 2i Pro Pack\u003c\/h2\u003e\n\u003cp\u003eThe Sky-Watcher Star Adventurer 2i Pro Pack is an equatorial tracking platform with a 5 kg (11 lb) payload capacity and a 1 kg (2.2 lb) mount head. Its drive, with an 86 mm, 144-tooth aluminum alloy wheel gear and a 13 mm brass worm, tracks at celestial, solar, lunar or customized speeds. This Pro Pack bundles the Wi-Fi-enabled mount head with the latitude (EQ) base, an adjustable dovetail L-bracket with declination scale, a ball head adapter and a 1 kg counterweight kit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eWhat the Star Adventurer 2i Is\u003c\/h3\u003e\n\u003cp\u003eThe 2i is an ultra compact, high precision celestial tracking platform for astrophotography. It carries up to 5 kg (11 lb). Besides Astrophotography and regular-exposure time-lapse, it offers long-exposure time-lapse and Sky-Watcher's patented Astro Time-lapse, and it supports star-scape photography.\u003c\/p\u003e\n\u003cp\u003eThe mount head measures 173.5 x 113.3 x 96 mm and weighs 1 kg (2.2 lb).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe 144-Tooth Drive: Celestial, Solar, and Lunar Tracking\u003c\/h3\u003e\n\u003cp\u003eThe 86 mm diameter, 144-tooth aluminum alloy wheel gear is paired with a 13 mm diameter high-tension brass worm gear, driven by a DC servo motor.\u003c\/p\u003e\n\u003cp\u003eCelestial, solar and lunar tracking speeds are preprogrammed, and customized speeds can be set in the Star Adventurer mini Console app.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBalancing With the 1 kg Counterweight\u003c\/h3\u003e\n\u003cp\u003eThe Pro Pack includes a counterweight kit, a 1 kg counterweight and shaft, to balance the camera or telescope load.\u003c\/p\u003e\n\u003cp\u003eWith the wedge set up, the manual has you attach the mounting assembly, camera, ball head and counterweight, loosen the clutch knob, move the counterweight until the load balances, then fasten the clutch knob.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePolar Alignment With the Built-in Polar Scope\u003c\/h3\u003e\n\u003cp\u003eTracking needs the rotation axis aligned with Earth's axis. The built-in polar scope has about a 7° field of view. For observers in the Northern Hemisphere, the goal is to place the star Polaris in a specific position within the scope's reticle; in the Southern Hemisphere, the star Sigma Octantis is used.\u003c\/p\u003e\n\u003cp\u003eThe latitude (EQ) base has altitude and azimuth adjustment knobs, an altitude scale and a bubble level, and gives higher accuracy and stability than a standard photo \u003ca href=\"\/en-int\/collections\/tripods-and-piers\"\u003etripod\u003c\/a\u003e head. The companion smartphone app includes a \"Polar Clock\" utility that shows where to place the alignment star in the polar scope's field of view based on your location and the current time. Note that while the polar scope is built-in, the illuminator to light its reticle is an optional accessory sold separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBuilt-in Wi-Fi and the Mode Dial\u003c\/h3\u003e\n\u003cp\u003eThe 2i has built-in Wi-Fi for the free Star Adventurer mini Console app for Android and iOS. By turning the Mode Dial to \"APP\", the mount creates its own Wi-Fi network that you connect to with your phone or tablet.\u003c\/p\u003e\n\u003cp\u003eThe app sets:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExposure Time \u0026amp; Interval:\u003c\/strong\u003e Set the exposure time and the frame period, which gives the camera time to cool down between photos.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhoto Count:\u003c\/strong\u003e Define the total number of frames for your sequence.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTracking Rate:\u003c\/strong\u003e Select celestial, solar, lunar, or a custom speed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDithering:\u003c\/strong\u003e Enable unguided dithering to slightly shift pointing between frames, which helps remove hot and cold pixels and satellite or airplane trails during stacking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTime-Lapse Settings:\u003c\/strong\u003e Set the swing range for a pendulum effect in time-lapses.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCustomized settings are stored in the preprogrammed functions selected by the Mode Dial. This allows you to run your favorite sequence on a subsequent night just by turning the dial, without needing to connect to the Wi-Fi.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDSLR Shutter Control for Exposures Beyond 30 Seconds\u003c\/h3\u003e\n\u003cp\u003eMany cameras cannot set exposures longer than 30 seconds by themselves. The SNAP port, a 2.5 mm 3-segment stereo jack, lets the mount control the camera's shutter so exposures can exceed 30 seconds.\u003c\/p\u003e\n\u003cp\u003eConnect your camera with the optional DSLR shutter control cable for your model and set the camera to BULB mode; otherwise the camera's own shutter setting takes over.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe ST-4 Port for Single-Axis Tracking Correction\u003c\/h3\u003e\n\u003cp\u003eFor longer focal lengths you can connect an \u003ca href=\"\/en-int\/collections\/autoguiding\"\u003eautoguider\u003c\/a\u003e. The single-axis autoguiding port uses an RJ-12 6-pin ST-4 interface.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eWhat the Pro Pack Adds\u003c\/h3\u003e\n\u003cp\u003eThe Pro Pack adds the accessories the manual lists for the 2i:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLatitude (EQ) Base:\u003c\/strong\u003e The \u003ca href=\"\/en-int\/collections\/equatorial-wedges\"\u003eequatorial wedge\u003c\/a\u003e, attached to the tripod by its 3\/8-inch threaded hole, adjusts the latitude for polar alignment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Dovetail L-Bracket:\u003c\/strong\u003e To mount a camera or telescope, with fine-tuning of the pointing in two directions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCounterweight Kit (1 kg):\u003c\/strong\u003e A counterweight and shaft to balance the telescope or camera load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBall Head Adapter:\u003c\/strong\u003e To mount a standard camera ball head with a 3\/8\" thread screw on the Star Adventurer 2i.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDual Power via 4 AA Batteries or a 5V USB Input\u003c\/h3\u003e\n\u003cp\u003eIt runs on 4 AA batteries (accepting a DC voltage range of 3.6V to 6.5V) housed in an internal compartment.\u003c\/p\u003e\n\u003cp\u003eIt can also run on external DC 5V through the mini-B USB port. The mode dial LED blinks slowly at low battery level. The mount operates in temperatures from 0 to 40°C (32 to 104°F).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eField Setup: A Step-by-Step Guide to Your First Session\u003c\/h3\u003e\n\u003cp\u003eSet up your tripod and make sure it is stable. Attach the equatorial wedge by its 3\/8-inch threaded hole, turn the tripod so the altitude adjustment knob faces north (in the Northern Hemisphere), and level it with the built-in bubble level. Set the altitude indicator to your latitude; the app shows it under Settings, Location. Mount the Star Adventurer 2i head on the wedge.\u003c\/p\u003e\n\u003cp\u003eAttach the mounting assembly, camera, ball head and counterweight, then loosen the clutch knob and move the counterweight until the load balances. Fasten the clutch knob, remove the polar scope cap and polar-align with the wedge's altitude and azimuth knobs and the Polar Clock utility. Then connect the SNAP camera control cable and start imaging from the app or the Mode Dial.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePhotography Modes\u003c\/h3\u003e\n\u003cp\u003eAstrophotography: the camera follows the sky so each frame of a sequence is framed identically, ready for stacking. Unguided dithering is available in this mode.\u003c\/p\u003e\n\u003cp\u003eTime-lapse: short- and long-exposure time-lapse with horizontal or vertical rotation. Astro Time-lapse: the mount tracks during each exposure, then returns the camera to the starting point, so the sky moves over a fixed foreground in the video.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the maximum payload of the Sky-Watcher Star Adventurer 2i?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eUp to 5 kg (11 lb), per the manual. Use the 1 kg counterweight kit to balance the load.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow long can my exposures be?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThere is no published tracking accuracy figure. The camera control enables exposures over 30 s each, and for longer focal lengths you can connect an autoguider to the ST-4 port.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a laptop to control the Star Adventurer 2i in the field?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The built-in Wi-Fi connects to a smartphone or tablet running the free Star Adventurer mini Console app, and the Mode Dial runs stored settings without Wi-Fi.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between the Star Adventurer 2i Pro Pack and the mount head alone?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Pro Pack adds the latitude (EQ) base, the adjustable dovetail L-bracket with declination scale, the ball head adapter and the 1 kg counterweight kit to the mount head.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Astro Time-Lapse mode work on the Star Adventurer 2i?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn Astro Time-Lapse mode, the mount tracks the sky's motion during each exposure. After each photo is taken, the mount returns the camera to its original starting position. When you assemble these frames into a video, the result is a fixed landscape with the sky moving over it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow is the Sky-Watcher Star Adventurer 2i powered?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe mount offers two power options. It can run on 4 AA batteries (DC 3.6V to 6.5V) installed in the internal battery compartment, or it can be powered by an external DC 5V source via its mini-B USB port.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Sky-Watcher Star Adventurer 2i have GoTo capability?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. It is a celestial tracking platform: point the camera yourself, and it tracks at sidereal, solar, lunar or customized speeds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the unguided dithering feature do on the Star Adventurer 2i?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn Astrophotography mode, unguided dithering shifts the pointing slightly between exposures. This helps remove hot and cold pixels and satellite or airplane trails during stacking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the polar scope on the Star Adventurer 2i illuminated?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe mount includes a built-in polar scope with about a 7° field of view. However, the illuminator, which makes the reticle pattern more visible in dark conditions, is listed by Sky-Watcher as an optional accessory and is sold separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the Star Adventurer 2i make ordinary time-lapse videos?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Its time-lapse modes cover short- and long-exposure time-lapse with horizontal or vertical rotation. In the app you set the frame period, and the swing range for a pendulum effect.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e050234205122\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Type\u003c\/td\u003e\n\u003ctd\u003eUltra compact equatorial tracking platform\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePayload\u003c\/td\u003e\n\u003ctd\u003e5 kg (11 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Weight\u003c\/td\u003e\n\u003ctd\u003e1 kg (2.2 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e173.5 x 113.3 x 96 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTracking Speeds\u003c\/td\u003e\n\u003ctd\u003eCelestial, solar and lunar preprogrammed; customized via the app\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWheel Gear\u003c\/td\u003e\n\u003ctd\u003e86 mm diameter, 144 teeth, aluminum alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorm Gear\u003c\/td\u003e\n\u003ctd\u003e13 mm diameter, high-tension brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Drive\u003c\/td\u003e\n\u003ctd\u003eDC servo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuilt-in Wi-Fi\u003c\/td\u003e\n\u003ctd\u003eYes, free app for Android and iOS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePolar Scope\u003c\/td\u003e\n\u003ctd\u003eBuilt in, about 7° field of view (illuminator listed as an optional accessory)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuto-Guiding\u003c\/td\u003e\n\u003ctd\u003eSingle-axis, RJ-12 6-pin ST-4 interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Control\u003c\/td\u003e\n\u003ctd\u003eDSLR shutter control port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMode Dial\u003c\/td\u003e\n\u003ctd\u003ePreprogrammed functions without starting the Wi-Fi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhotography Modes\u003c\/td\u003e\n\u003ctd\u003eAstrophotography with unguided dithering, star-scape, short- and long-exposure time-lapse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Connection\u003c\/td\u003e\n\u003ctd\u003e3\/8\" threaded socket (1\/4\" with the conversion adapter supplied)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e4 AA batteries (DC 3.6 to 6.5 V) or external DC 5 V through the mini-B USB port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 40°C (32 to 104°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePro Pack Accessories\u003c\/td\u003e\n\u003ctd\u003eBall head adapter, dovetail L-bracket with declination scale, counterweight kit (1 kg counterweight and shaft), latitude (EQ) base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGoTo\u003c\/td\u003e\n\u003ctd\u003eNo (tracking only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTripod\u003c\/td\u003e\n\u003ctd\u003eNot included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eStar Adventurer 2i Wi-Fi Mount Head\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBall Head Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eAdjustable Dovetail L-Bracket with Declination Scale\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCounterweight Kit (1 kg Counterweight and Shaft)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eLatitude (EQ) Base\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_Star_Adventurer_2i_Upgrade_Kit_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Star Adventurer 2i Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/apps\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload SynScan Pro App\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/firmware-and-software\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967193706781,"sku":"SW-S20512","price":659.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Sky-Watcher-Star-Adventurer-2i-S20512-1__07182.1602092492.1280.1280.jpg?v=1684338567"},{"product_id":"sky-watcher-star-adventurer-2i-photo-package","title":"Sky-Watcher Star Adventurer 2i Photo Package","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePayload Capacity:\u003c\/strong\u003e 5 kg (11 lb)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Head Weight:\u003c\/strong\u003e 1 kg (2.2 lb)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl:\u003c\/strong\u003e Built-in Wi-Fi with free app for Android \u0026amp; iOS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrive System:\u003c\/strong\u003e 86 mm, 144-tooth wheel gear and DC servo motor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePorts:\u003c\/strong\u003e ST-4 autoguider, DSLR shutter control, mini-B USB power\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTracking Rates:\u003c\/strong\u003e Celestial, Solar, and Lunar plus custom speeds via app\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSky-Watcher Star Adventurer 2i Photo Package\u003c\/h2\u003e\n\u003cp\u003eThe Sky-Watcher Star Adventurer 2i Photo Package combines a 1 kg (2.2 lb) tracking head with a 3\/8\" ball head adapter, so you can mount your own camera ball head. It supports a payload of up to 5 kg (11 lb), with an 86 mm, 144-tooth wheel gear driven by a DC servo motor. With built-in Wi-Fi, a single-axis ST-4 autoguiding port, and DSLR shutter control.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eWhat the Star Adventurer 2i Is\u003c\/h3\u003e\n\u003cp\u003eThe 2i is an ultra compact, high precision, portable and stable celestial tracking platform for sidereal, solar and lunar tracking. The 1 kg (2.2 lb) mount head carries up to 5 kg (11 lb).\u003c\/p\u003e\n\u003cp\u003eThis is a celestial tracking platform, not a GoTo mount. You manually point your camera at the desired target, and the Star Adventurer 2i takes over, tracking at sidereal, solar, lunar, or custom rates to keep your subject locked in the frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e86mm, 144-Tooth Wheel Gear for Sidereal Tracking\u003c\/h3\u003e\n\u003cp\u003eAn 86 mm diameter, 144-tooth aluminum alloy wheel gear is paired with a 13 mm diameter high-tension brass worm gear, driven by a DC servo motor.\u003c\/p\u003e\n\u003cp\u003eThere is no published tracking accuracy figure. An \u003ca href=\"\/en-int\/collections\/autoguiding\"\u003eautoguider\u003c\/a\u003e can be connected to the ST-4 port.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBalancing a Telescope or Long Lens\u003c\/h3\u003e\n\u003cp\u003eThe payload limit is 5 kg (11 lb). For a telescope or long lens, balance it with the optional 1 kg \u003ca href=\"\/en-int\/collections\/counterweights\"\u003ecounterweight\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eThe manual's optional accessories for this are the fine-tuning mounting assembly, which mounts a telescope with a 1\/4\" thread screw and fine-tunes the pointing in two directions, and the 1 kg counterweight. To balance, loosen the clutch knob, move the counterweight until the load balances, then fasten the clutch knob.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBuilt-in Polar Scope With About a 7° Field\u003c\/h3\u003e\n\u003cp\u003eTracking needs the rotation axis aligned with Earth's axis. The built-in polar scope has about a 7° field of view.\u003c\/p\u003e\n\u003cp\u003eThe app's Polar Clock utility shows where to place Polaris (in the Northern Hemisphere) or Sigma Octantis (in the Southern Hemisphere) within the polar scope's reticle. Note that the polar scope illuminator, which makes the reticle easier to see in the dark, is an optional accessory and is sold separately.\u003c\/p\u003e\n\u003cp class=\"DAV-warning\"\u003e\u003cstrong\u003eSafety Warning:\u003c\/strong\u003e Do not look at the Sun through the polar scope. Viewing the Sun or other strong light sources through it could cause permanent visual impairment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eWi-Fi Control and the Mode Dial\u003c\/h3\u003e\n\u003cp\u003eThe built-in Wi-Fi connects the mount to a smartphone or tablet running the free Star Adventurer mini Console app for Android and iOS. The 2i has a fully app-controlled mode (APP) and six preprogrammed function modes on the Mode Dial:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAPP mode: sets exposure time, frame period, number of pictures, tracking speed, dithering range and swing range.\u003c\/li\u003e\n\u003cli\u003eMode Dial: selects a preprogrammed function without starting the Wi-Fi. Settings that run successfully in APP mode are stored in the matching preprogrammed mode.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDSLR Shutter Control for Exposures Over 30s\u003c\/h3\u003e\n\u003cp\u003eThe DSLR shutter control port, a 2.5 mm 3-segment stereo jack, supports multiple camera brands with a shutter release cable (sold separately for your model) and lets you take exposures over 30 s each. Set the camera to BULB mode, or its own shutter setting takes over.\u003c\/p\u003e\n\u003cp\u003eThe exposures are run from the app or from a Mode Dial setting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe Single-Axis ST-4 Autoguiding Port\u003c\/h3\u003e\n\u003cp\u003eThe single-axis autoguiding port uses an RJ-12 6-pin ST-4 interface.\u003c\/p\u003e\n\u003cp\u003eThe mount also supports an unguided dithering function through the app. Set a dithering range in arcminutes in the app's Astrophotography settings. It shifts the pointing between exposures, which helps remove hot and cold pixels and satellite or airplane trails during stacking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eWhat the Star Adventurer 2i Photo Package Includes\u003c\/h3\u003e\n\u003cp\u003eThe package contains the Star Adventurer 2i mount head and a 3\/8\" ball head adapter, for mounting your own camera ball head on the Star Adventurer 2i.\u003c\/p\u003e\n\u003cp\u003eFor a telescope or a long lens, the manual's optional accessories are sold separately: the \u003ca href=\"\/en-int\/collections\/equatorial-wedges\"\u003eequatorial wedge\u003c\/a\u003e to adjust latitude, the Fine-Tuning Mounting Assembly (\u003ca href=\"\/en-int\/collections\/dovetail-plates\"\u003edovetail\u003c\/a\u003e L-bracket), and the 1 kg Counterweight Kit for balancing the load.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e4xAA Battery and 5V USB Power\u003c\/h3\u003e\n\u003cp\u003eThe mount runs on four AA batteries (DC 3.6V to 6.5V) or external DC 5V through its mini-B USB port. The mode dial LED blinks slowly at low battery level.\u003c\/p\u003e\n\u003cp\u003eThe mount is designed for an operating temperature range of 0° to 40°C (32° to 104°F).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA Step-by-Step Guide to Your First Session\u003c\/h3\u003e\n\u003cp\u003eA first session goes like this:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-int\/collections\/tripods-and-piers\"\u003eTripod\u003c\/a\u003e setup: set up your tripod and make sure it is stable. The Star Adventurer 2i goes on a tilt head or ball mount, or on the optional equatorial wedge, which gives higher accuracy and stability than a standard photo tripod head.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount the Tracker:\u003c\/strong\u003e Attach the Star Adventurer 2i to your tripod head or wedge. The base has a 3\/8\" threaded socket, and a 1\/4\" adapter is included. Remove the polar scope cap.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolar Align:\u003c\/strong\u003e Following the procedure in the manual and using the app's Polar Clock Utility, adjust your tripod head or wedge to place Polaris in the correct position within the polar scope's reticle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAttach Camera:\u003c\/strong\u003e Mount your ball head to the Star Adventurer 2i using the included adapter, then attach your camera.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower On and Connect:\u003c\/strong\u003e Insert 4 AA batteries or connect external DC 5V to the mini-B USB port. Turn the Mode Dial to your desired setting (e.g., APP mode to connect via Wi-Fi).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame Your Target:\u003c\/strong\u003e Loosen the ball head and point your camera at your subject, then lock it down.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBegin Imaging:\u003c\/strong\u003e Use the app or the Mode Dial's preprogrammed functions to start your sequence of exposures.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePhotography Modes\u003c\/h3\u003e\n\u003cp\u003eThe 2i keeps the Mode Dial of the earlier Star Adventurer and adds Wi-Fi, long-exposure time-lapse and Sky-Watcher's patented Astro Time-lapse.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAstrophotography and star-scape: the camera follows the sky so each frame of a sequence is framed identically.\u003c\/li\u003e\n\u003cli\u003eAstro Time-lapse: the mount tracks during each exposure, then returns the camera to the starting point, so the sky moves over a fixed foreground.\u003c\/li\u003e\n\u003cli\u003eShort- and long-exposure time-lapse, with horizontal or vertical rotation and an optional swing range for a pendulum effect.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat payload can the Sky-Watcher Star Adventurer 2i carry?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eUp to 5 kg (11 lb), per the manual. For a telescope or long lens, balance it with the optional 1 kg counterweight.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow long can my exposures be?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThere is no published tracking accuracy figure. The camera control enables exposures over 30 s each, and an autoguider can be connected to the ST-4 port.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need an external intervalometer for the Star Adventurer 2i?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. Its DSLR shutter control port, driven from the app or a Mode Dial setting, triggers the camera through a shutter release cable for your camera.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between the Star Adventurer 2i Photo Package and the Pro Package?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Photo Package is the mount head with a ball head adapter. The Pro Pack adds the latitude (EQ) base, the dovetail L-bracket with declination scale and the 1 kg counterweight kit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Star Adventurer 2i polar scope include an illuminator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe polar scope is built in; the illuminator is an optional accessory, sold separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I power the Star Adventurer 2i with a portable power bank?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Besides 4 AA batteries, it accepts external DC 5 V through its mini-B USB port.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan it track the Sun?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt has a solar tracking speed, reserved for advanced uses with specialized equipment for photographing the Sun. Never look at the Sun through the polar scope, as it could cause permanent visual impairment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of tripod do I need for the Star Adventurer 2i?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts base has a 3\/8\" threaded socket, with a 1\/4\" conversion adapter supplied. For polar alignment you also need a head or the optional equatorial wedge that adjusts in latitude.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Star Adventurer 2i have GoTo capability?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. It is a celestial tracking platform: point the camera yourself, and it tracks at sidereal, solar, lunar or customized speeds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the \"unguided dithering\" feature work on the Star Adventurer 2i?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can enable unguided dithering in the Astrophotography settings of the companion app by setting a dithering range in arcminutes. The mount will then automatically shift its pointing by a small amount between each exposure. When you stack the images, this process helps to remove hot and cold pixels, and trails from satellites or airplanes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I update the firmware on my Star Adventurer 2i?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFirmware updates are performed using the \"Motor Controller Firmware Loader\" software from the Sky-Watcher website. You connect the Star Adventurer 2i to a computer via its mini USB cable, run the loader application, and select the new firmware file. Do not turn off the power while updating; after about 25 seconds the software reports that the update is complete.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e050234205207\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Type\u003c\/td\u003e\n\u003ctd\u003eUltra compact equatorial tracking platform\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePayload\u003c\/td\u003e\n\u003ctd\u003e5 kg (11 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Weight\u003c\/td\u003e\n\u003ctd\u003e1 kg (2.2 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e173.5 x 113.3 x 96 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTracking Speeds\u003c\/td\u003e\n\u003ctd\u003eCelestial, solar and lunar preprogrammed; customized via the app\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWheel Gear\u003c\/td\u003e\n\u003ctd\u003e86 mm diameter, 144 teeth, aluminum alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorm Gear\u003c\/td\u003e\n\u003ctd\u003e13 mm diameter, high-tension brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Drive\u003c\/td\u003e\n\u003ctd\u003eDC servo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuilt-in Wi-Fi\u003c\/td\u003e\n\u003ctd\u003eYes, free app for Android and iOS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePolar Scope\u003c\/td\u003e\n\u003ctd\u003eBuilt in, about 7° field of view (illuminator listed as an optional accessory)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuto-Guiding\u003c\/td\u003e\n\u003ctd\u003eSingle-axis, RJ-12 6-pin ST-4 interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Control\u003c\/td\u003e\n\u003ctd\u003eDSLR shutter control port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMode Dial\u003c\/td\u003e\n\u003ctd\u003ePreprogrammed functions without starting the Wi-Fi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhotography Modes\u003c\/td\u003e\n\u003ctd\u003eAstrophotography with unguided dithering, star-scape, short- and long-exposure time-lapse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Connection\u003c\/td\u003e\n\u003ctd\u003e3\/8\" threaded socket (1\/4\" with the conversion adapter supplied)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e4 AA batteries (DC 3.6 to 6.5 V) or external DC 5 V through the mini-B USB port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e0 to 40°C (32 to 104°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhoto Package Accessory\u003c\/td\u003e\n\u003ctd\u003e3\/8\" ball head adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGoTo\u003c\/td\u003e\n\u003ctd\u003eNo (tracking only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTripod\u003c\/td\u003e\n\u003ctd\u003eNot included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eStar Adventurer 2i Wi-Fi Mount Head\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBall Head Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_Star_Adventurer_2i_Upgrade_Kit_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Star Adventurer 2i Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/apps\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload SynScan Pro App\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/firmware-and-software\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967193739549,"sku":"SW-S20520","price":459.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher-Star-Adventurer-2i-S20520-1__87269.1602093062.1280.1280.jpg?v=1684338569"},{"product_id":"sky-watcher-eq8-r-mount-with-pier-tripod","title":"Sky-Watcher EQ8-R Mount with Pier Tripod","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e50 kg (110 lb) astrophotography payload capacity\u003c\/li\u003e\n\u003cli\u003e435:1 worm drive with 0.9° hybrid stepper motors\u003c\/li\u003e\n\u003cli\u003eSynScan V5 hand controller with 42,000+ object database\u003c\/li\u003e\n\u003cli\u003e200-segment Permanent Periodic Error Correction (PPEC)\u003c\/li\u003e\n\u003cli\u003eIntegrated cable management hub for power and data\u003c\/li\u003e\n\u003cli\u003eHeavy-duty pier tripod with 800 mm to 1100 mm adjustable height\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSky-Watcher EQ8-R Mount with Pier Tripod\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSky-Watcher EQ8-R Mount with Pier Tripod\u003c\/strong\u003e is a German equatorial GoTo mount for astrophotography, supporting a 50 kg (110 lb) instrument payload. Its mechanical systems are built around a 435:1 worm drive and 0.9° hybrid stepper motors, achieving a theoretical resolution of 0.03 arc-seconds for precise tracking. The included pier tripod weighs 29.4 kg, and the SynScan V5 GoTo system places a database of over 42,000 celestial objects at your command with slew speeds up to 3.7° per second. The EQ8-R also features 200-segment Permanent Periodic Error Correction (PPEC) and a comprehensive cable management system routed through the mount body.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSky-Watcher EQ8-R: A 50 kg Astrophotography Payload\u003c\/h3\u003e\n\u003cp\u003eIts 50 kg (110 lb) payload capacity is rated specifically for imaging and excludes the \u003ca href=\"\/en-int\/products\/sky-watcher-eq8-r-series-22-pound-counterweight\"\u003ecounterweights\u003c\/a\u003e. There is no list of compatible telescopes: add up the tube, camera, \u003ca href=\"\/en-int\/collections\/autoguiding\"\u003eguide scope\u003c\/a\u003e and accessories and compare the total with the rating.\u003c\/p\u003e\n\u003cp\u003eThe system is composed of two main components: the 25.8 kg (56.9 lb) \u003ca href=\"\/en-int\/collections\/equatorial-mounts\"\u003eGerman equatorial mount\u003c\/a\u003e head and the 29.4 kg (64.8 lb) pier tripod, adjustable from 800 mm to 1100 mm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePrecision Motion: The 435:1 Worm Drive and 0.03\" Resolution\u003c\/h3\u003e\n\u003cp\u003eThe drive uses a 435:1 worm drive transmission paired with 0.9° hybrid stepper motors. The motor controller drives the system with 256 microsteps per step, for a resolution of 44,544,000 counts per revolution.\u003c\/p\u003e\n\u003cp\u003eThis fine control corresponds to a theoretical step size of just 0.03 arc-seconds. The maximum slewing speed is 3.7° per second.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBalancing the Load: 50 kg Capacity and Dual 10 kg Counterweights\u003c\/h3\u003e\n\u003cp\u003eBalance the mount to reduce stress on the motor drive system and to ensure smooth and accurate operation. The EQ8-R includes two 10 kg (22 lb) counterweights and a 2.6 kg (5.7 lb) counterweight rod to balance the 50 kg payload capacity. The total weight of the included counterweights is 20 kg.\u003c\/p\u003e\n\u003cp\u003eThe balancing procedure involves adjusting both the Right Ascension (R.A.) and Declination (Dec.) axes independently. First, with the R.A. clutch loosened, you slide the counterweights along the rod until the mount remains stationary with the rod parallel to the ground. Second, with the Dec. clutch loosened, you slide the telescope's dovetail bar within the D-style \u003ca href=\"\/en-int\/collections\/saddles-and-clamps\"\u003esaddle\u003c\/a\u003e until the optical tube can also remain stationary without support.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAchieving Alignment: 15° to 65° Latitude Range and SynScan Routines\u003c\/h3\u003e\n\u003cp\u003eThe EQ8-R has a latitude adjustment range from 15° to 65°. Physical alignment is controlled by a large latitude jackscrew for elevation and two azimuth adjustment knobs with a ±10° range.\u003c\/p\u003e\n\u003cp\u003eWhile an optional \u003ca href=\"\/en-int\/products\/sky-watcher-eq8-r-series-polar-scope\"\u003epolar scope\u003c\/a\u003e can be fitted, polar alignment can also be based on a star alignment. After a 2-star or 3-star alignment, the controller can calculate and display the mount's polar alignment error. You can then enter the \"Polar Alignment\" routine (polar alignment without a polar scope, in the SynScan manual), which guides you through the altitude and azimuth adjustments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSynScan V5 Controller: Navigating a 42,000+ Object Database\u003c\/h3\u003e\n\u003cp\u003eThe EQ8-R is controlled by the included SynScan V5 hand controller, which holds a database of over 42,000 celestial objects. You can navigate the skies by selecting targets from the Messier, NGC, IC, SAO, and Caldwell catalogs, as well as dedicated lists for double stars, variable stars, named stars, and planets.\u003c\/p\u003e\n\u003cp\u003eFor equatorial mounts it offers 1-star, 2-star and 3-star alignment. Once aligned, the GoTo system achieves a pointing accuracy of up to 5 arc-minutes (RMS). The system offers sidereal, solar, and lunar tracking rates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eRemote Operation: ASCOM, USB, and Optional Wi-Fi Control\u003c\/h3\u003e\n\u003cp\u003eThe mount's control panel includes a USB port that provides a direct USB-to-serial connection to a computer. The system is fully compatible with the ASCOM platform, for ASCOM-compatible software.\u003c\/p\u003e\n\u003cp\u003eFor wireless control, you can connect the optional \u003ca href=\"\/en-int\/products\/sky-watcher-synscan-wifi-adapter\"\u003eSynScan Wi-Fi dongle\u003c\/a\u003e to the hand controller port. This enables you to control the mount using the SynScan Pro app, for iOS, Android or Windows. On Windows and Android the app also works over the mount's USB port.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAdvanced Tracking: 200-Segment PPEC and 0.125x to 1x Guiding\u003c\/h3\u003e\n\u003cp\u003eThe mount supports 200-segment Permanent Periodic Error Correction (PPEC). An index on the R.A. worm allows the motor controller to track the worm's position. After a training routine (either manually or with an autoguider), the mount stores the worm gear's specific error profile in the motor controller. This correction can then be enabled on subsequent nights without retraining, provided the polar alignment is accurate. It improves tracking for short focal length astrophotography.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutoguider Port:\u003c\/strong\u003e A standard ST-4 compatible autoguide port is provided for connecting any autoguider with an ST-4 type interface. You can select autoguiding correction speeds of 0.125x, 0.25x, 0.5x, 0.75x, or 1x the sidereal rate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSNAP Shutter Release:\u003c\/strong\u003e An integrated SNAP port allows the SynScan controller's \"Camera Control\" function to trigger a DSLR for automated exposure sequences. A cable for Canon EOS models is included.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto-Home Function:\u003c\/strong\u003e Two home position sensors allow the mount, working with the \u003ca href=\"\/en-int\/products\/sky-watcher-v5-synscan-handbox-controller\"\u003eSynScan hand controller\u003c\/a\u003e, to return to a precise, repeatable home position after power-on.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHard Stops:\u003c\/strong\u003e To protect your equipment, internal hard stops on both the R.A. and declination axes protect the mechanical parts, the optical tube and the internal wiring.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe Pier Tripod: A 29.4 kg Foundation with 1100 mm Max Height\u003c\/h3\u003e\n\u003cp\u003eThe steel pier tripod weighs 29.4 kg (64.8 lb). Its height is adjustable from 800 mm to 1100 mm.\u003c\/p\u003e\n\u003cp\u003eThe pier can be placed directly on level ground or on its three included adjustable stands. These stands feature large leveling screws for levelling the tripod top. The D-style saddle grips the dovetail bar with three knobs tightened alternately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePowering the System: A DC 11-16V, 55W Minimum Requirement\u003c\/h3\u003e\n\u003cp\u003eThe EQ8-R requires a DC power source supplying between 11 and 16 volts, with a minimum power output of 55 watts. Higher voltage within this range is preferred for optimal motor performance. The control panel has a power switch, and the power plug is secured with a knurled cap.\u003c\/p\u003e\n\u003cp\u003eAn LED beside the autoguide port shows the power status. A steady light indicates normal voltage, slow flashing warns of low voltage, and fast flashing indicates extremely low voltage, which could damage a battery or the mount's motor controller. Do not use an unregulated AC-to-DC adapter; Sky-Watcher's 13.7V\/4A AC-to-DC switching supply is highly recommended.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFirst Light Guide: Assembling the EQ8-R and Pier Tripod\u003c\/h3\u003e\n\u003cp\u003eBegin by expanding the pier tripod legs on level ground and installing the hand controller bracket. For safety, the manual recommends placing a counterweight on the ground beneath the central post so that no one can put a foot under the central post. After adjusting the pier to the desired height (800 mm to 1100 mm), you can place the 25.8 kg mount head onto the tripod top, securing it with the azimuth locking screws and the large primary locking knob.\u003c\/p\u003e\n\u003cp\u003eNext, screw the counterweight rod into the declination axis and slide on the two 10 kg counterweights. With the R.A. and Dec. clutches locked, you can then mount your telescope onto the D-style saddle. Finally, balance the assembly in both axes as described above.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDimensions and Portability: A 25.8 kg Head and 29.4 kg Tripod\u003c\/h3\u003e\n\u003cp\u003eThe mount head weighs 25.8 kg (56.9 lb) and the pier tripod weighs 29.4 kg (64.8 lb). The two included 10 kg counterweights and the 2.6 kg counterweight rod add 22.6 kg (49.8 lb), so the system weighs about 77.8 kg (171.5 lb) before adding a telescope.\u003c\/p\u003e\n\u003cp\u003eThe pier tripod's height is adjustable between 800 mm and 1100 mm. Cables for accessories can run through the mount from the IN panel to the OUT panel near the saddle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eEQ8-R vs. EQ8-RH: Understanding the Encoder Difference\u003c\/h3\u003e\n\u003cp\u003eThe EQ8-R manual covers the EQ8-R (this model) and the EQ8-RH, which adds a high-resolution Renishaw incremental encoder on the Right Ascension axis.\u003c\/p\u003e\n\u003cp\u003eThis helps to reduce or eliminate the influence of mechanical periodic error while the mount is tracking. The EQ8-R, by contrast, relies on its high-resolution stepper motors and the 200-segment Permanent Periodic Error Correction (PPEC).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat size telescope can the Sky-Watcher EQ8-R handle for astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 50 kg (110 lb) payload capacity of the Sky-Watcher EQ8-R is rated for astrophotography and excludes the counterweights. Sky-Watcher does not list specific compatible telescopes. To determine if your setup is suitable, add the weight of your optical tube, camera, guide scope, \u003ca href=\"\/en-int\/collections\/filter-wheels\"\u003efilter wheel\u003c\/a\u003e, and any other accessories. Compare the total with the 50 kg rating.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I control the Sky-Watcher EQ8-R from a computer for imaging sessions?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The mount panel's USB port provides a direct USB-to-serial connection to a computer. It supports the ASCOM platform. Additionally, Sky-Watcher provides the SynScan Pro app for Windows or Android (using the built-in USB or optional Wi-Fi dongle) and for iOS (using the Wi-Fi dongle).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is Permanent PEC on the Sky-Watcher EQ8-R and how does it work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003ePermanent Periodic Error Correction (PPEC) is a feature that improves tracking accuracy. An index on the R.A. worm lets the controller continuously monitor the worm's position. You perform a one-time PEC training run (either guiding manually or with an autoguider), during which the mount records the worm gear's inherent periodic error. This data is stored permanently in the motor controller, so you can enable PEC at any time on subsequent nights without retraining, assuming your polar alignment remains accurate. It improves tracking for short focal length astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of power supply does the Sky-Watcher EQ8-R need in the field?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Sky-Watcher EQ8-R requires a DC power source between 11V and 16V, with a minimum power output of 55W. A voltage on the higher end of this range gives the best performance. Sky-Watcher's own 13.7V \/ 4A switching power supply is highly recommended; avoid unregulated AC-to-DC adapters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Sky-Watcher EQ8-R come with a polar scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, a polar scope is an optional accessory for the Sky-Watcher EQ8-R and is sold separately. The SynScan hand controller can show the polar alignment error after a 2-star alignment and has a polar alignment routine that works without a polar scope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main difference between the Sky-Watcher EQ8-R and the EQ8-RH?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe EQ8-RH model includes a high-resolution Renishaw incremental encoder on the R.A. axis. This encoder helps to reduce or eliminate the influence of mechanical periodic error while tracking. The standard Sky-Watcher EQ8-R (this model) does not have this encoder and instead uses its precision 435:1 worm drive and 200-segment permanent PEC to achieve high tracking accuracy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I set up the Sky-Watcher EQ8-R pier tripod safely?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFirst, fully expand the tripod legs on level ground. The manual gives a key safety instruction: if there is space, place one or both of the 10 kg counterweights on the ground between the bottom of the central post and the ground. This acts as a physical barrier to prevent anyone from accidentally putting a foot under the heavy, adjustable central post while you are working on it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I balance a telescope on the Sky-Watcher EQ8-R?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWith the counterweights and the telescope installed on the Sky-Watcher EQ8-R, and with both clutches loose, you perform two steps: 1) R.A. Balance: Rotate the R.A. axis until the counterweight rod is horizontal. Slide the counterweights along the rod until the entire axis stays in place without support. 2) Dec. Balance: Rotate the Dec. axis until the telescope tube is horizontal. Loosen the saddle knobs slightly and slide the telescope's dovetail bar forward or backward in the saddle until the tube stays balanced without support. Proper balancing is crucial to reduce stress on the motor drive system and ensure smooth, accurate operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat do the different flashing patterns on the Sky-Watcher EQ8-R's LED mean?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe LED on the Sky-Watcher EQ8-R's control panel indicates power status and PEC functions: Steady On (Normal voltage), Slow Flashing (Low voltage), Fast Flashing (Extremely low voltage), and Intermittent Flashes (1, 2, or 3) which signal the status of a PPEC training routine or indicate that sidereal tracking with PEC is enabled.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the Sky-Watcher EQ8-R trigger my camera for an automated sequence?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The Sky-Watcher EQ8-R's SNAP port and the SynScan hand controller's \"Camera Control\" function are designed for this. You can set up to 8 groups of exposure-time and frame-count combinations. The mount comes with a shutter release cable for Canon EOS cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the auto-home function on the Sky-Watcher EQ8-R do?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Sky-Watcher EQ8-R is equipped with two home position sensors. When you use the \"Auto-Home\" function in the SynScan hand controller after powering on, the mount will automatically slew both axes to a precise, repeatable starting position.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e050234306010\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Type\u003c\/td\u003e\n\u003ctd\u003eGerman equatorial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePayload\u003c\/td\u003e\n\u003ctd\u003e50 kg (110 lb), rated for astrophotography, counterweights excluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Head Weight\u003c\/td\u003e\n\u003ctd\u003e25.8 kg (56.9 lb), tripod excluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCounterweights\u003c\/td\u003e\n\u003ctd\u003e2 x 10 kg (22 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCounterweight Rod\u003c\/td\u003e\n\u003ctd\u003e2.6 kg (5.7 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLatitude Adjustment Range\u003c\/td\u003e\n\u003ctd\u003e15° to 65°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAzimuth Adjustment Range\u003c\/td\u003e\n\u003ctd\u003e±10°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSaddle\u003c\/td\u003e\n\u003ctd\u003eD-style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePier Tripod\u003c\/td\u003e\n\u003ctd\u003e29.4 kg (64.8 lb), adjustable height 800 to 1100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor\u003c\/td\u003e\n\u003ctd\u003e0.9° hybrid stepper, 256 microsteps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission\u003c\/td\u003e\n\u003ctd\u003e435:1 worm drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e44,544,000 counts per revolution (about 0.03 arc-second)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Slewing Speed\u003c\/td\u003e\n\u003ctd\u003e3.7° per second\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTracking Rates\u003c\/td\u003e\n\u003ctd\u003eSidereal, solar, lunar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuto-Guiding Speeds\u003c\/td\u003e\n\u003ctd\u003e0.125x, 0.25x, 0.5x, 0.75x, 1x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePEC\u003c\/td\u003e\n\u003ctd\u003e200-segment permanent PEC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGoTo Control\u003c\/td\u003e\n\u003ctd\u003eSynScan V5 hand controller (included) or SynScan Pro app; optional Wi-Fi dongle; ASCOM supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDatabase\u003c\/td\u003e\n\u003ctd\u003e42,000+ objects (Messier, NGC, IC, SAO, Caldwell, double stars, variable stars, named stars, planets)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePointing Accuracy\u003c\/td\u003e\n\u003ctd\u003eUp to 5 arc-minutes (RMS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Ports\u003c\/td\u003e\n\u003ctd\u003ePower, USB (USB-to-serial), hand controller, autoguide (ST-4), SNAP shutter release\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Management (IN and OUT through the mount)\u003c\/td\u003e\n\u003ctd\u003eAuxiliary power in 2.0 mm I.D., 5.5 mm O.D., DC 6 to 24 V, 5 A; auxiliary power out 4 A total; USB hub (Type A, 0.9 A per port on auxiliary power); paired RJ10, RJ12 and RJ45 auxiliary I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirement\u003c\/td\u003e\n\u003ctd\u003eDC 11 to 16 V (higher preferred), 55 W minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOther Features\u003c\/td\u003e\n\u003ctd\u003eTwo home position sensors (auto-home), internal hard stops on both axes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eEQ8-R Mount Head\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCounterweight Shaft\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e10 kg (22 lb) Counterweight\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSynScan V5 Hand Controller\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSynScan Hand Controller Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePower Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eShutter Release Cable (Canon EOS)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eJackscrew Handle\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCable Clamp\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e6 mm Allen Wrench\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePier Tripod\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eHand Controller Bracket\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eStand\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 3\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSlide Block\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 3\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eScrew\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 3\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWasher\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 3\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eThumb Screw\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 3\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eM3 x 10 Allen Screw\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWrench\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2.5 mm Allen Wrench\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_EQ8-R_Pro_Mount_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher EQ8-R Pro Mount Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/firmware-and-software\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/apps\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload SynScan Pro App\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/eq-mod.sourceforge.net\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload EQMOD Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967194788125,"sku":"SW-S30601","price":8399.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher-EQ8-R-Mount-with-Pier-Tripod-S30601-1__87052.1594170815.1280.1280.jpg?v=1684338604"},{"product_id":"sky-watcher-eq8-r-mount-head-only-with-counterweights","title":"Sky-Watcher EQ8-R Mount Head Only with Counterweights","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003ePayload: 50 kg (110 lb), rated for astrophotography\u003c\/li\u003e\n\u003cli\u003eMount Head Weight: 25.8 kg (56.9 lb)\u003c\/li\u003e\n\u003cli\u003eDrive System: 435:1 worm drive with 0.9° hybrid stepper motors\u003c\/li\u003e\n\u003cli\u003ePointing Resolution: Approximately 0.03 arc-second\u003c\/li\u003e\n\u003cli\u003eGoTo Control: SynScan V5 with 42,000+ object database\u003c\/li\u003e\n\u003cli\u003eTracking Features: 200-segment Permanent PEC (PPEC)\u003c\/li\u003e\n\u003cli\u003eCable Management: Integrated hub with USB and power passthrough\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSky-Watcher EQ8-R Mount Head Only with Counterweights\u003c\/h2\u003e\n\u003cp\u003eThe Sky-Watcher EQ8-R Mount Head is a \u003ca href=\"\/en-int\/collections\/equatorial-mounts\"\u003eGerman equatorial mount\u003c\/a\u003e head for astrophotography, supporting a 50 kg (110 lb) payload with the precision of a 435:1 worm drive. The mount head itself weighs 25.8 kg (56.9 lb) and is driven by 0.9° hybrid stepper motors that achieve a pointing resolution of approximately 0.03 arc-seconds. With an integrated cable management hub providing 4A of auxiliary power, 200-segment Permanent Periodic Error Correction (PPEC) and the SynScan V5 GoTo controller.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 50 kg (110 lb) Astrophotography Platform\u003c\/h3\u003e\n\u003cp\u003eIts 50 kg (110 lb) instrument capacity, which excludes the two included 10 kg counterweights. There is no list of compatible telescopes: add up the tube, camera, \u003ca href=\"\/en-int\/collections\/autoguiding\"\u003eguide scope\u003c\/a\u003e and accessories and compare the total with the rating.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e0.03 Arc-Second Resolution from a 435:1 Worm Drive\u003c\/h3\u003e\n\u003cp\u003eAt the core of the EQ8-R's pointing and tracking system is a combination of 0.9° hybrid stepper motors and a 435:1 worm drive transmission. This mechanical pairing translates motor movements into extremely fine adjustments, resulting in a theoretical resolution of 44,544,000 counts per revolution, or about 0.03 arc-seconds. Tracking rates are sidereal, solar and lunar.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSynScan V5: GoTo Control for 42,000+ Objects\u003c\/h3\u003e\n\u003cp\u003eThe included SynScan V5 hand controller gives you immediate access to a database of over 42,000 celestial objects, including the Messier, NGC, IC, and SAO catalogs. The system offers 1-star, 2-star and 3-star alignment for equatorial mounts and provides slewing speeds up to 3.7° per second to quickly move between targets. For automated control, the mount is fully ASCOM compatible, allowing it to be driven by popular third-party software on a PC via its built-in USB-to-serial port. You can also add an optional Wi-Fi dongle for wireless control from a smartphone or tablet running the SynScan Pro app.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAdvanced Tracking: 200-Segment PPEC, Auto-Home, and Guiding\u003c\/h3\u003e\n\u003cp\u003eThe 200-segment Permanent Periodic Error Correction (PPEC) system uses an index on the R.A. worm to store corrections for the worm gear's inherent mechanical variations. After a training routine (manual or auto-guiding), it improves tracking for short focal length astrophotography, and the data remains in the motor controller for future sessions. The mount is also equipped with two home position sensors, which allow it to find a precise, repeatable home position on startup.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto-Guiding:\u003c\/strong\u003e A standard ST-4 port allows for connection to any autoguider with an ST-4 type interface, with selectable correction speeds from 0.125x to 1x sidereal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSNAP Port:\u003c\/strong\u003e An integrated shutter release port lets you control a DSLR camera's exposures directly from the \u003ca href=\"\/en-int\/products\/sky-watcher-v5-synscan-handbox-controller\"\u003eSynScan hand controller\u003c\/a\u003e, enabling automated imaging sequences without a separate intervalometer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHard Stops:\u003c\/strong\u003e Internal hard stops on both the R.A. and declination axes protect the mechanical parts, the optical tube, and the internal wiring from over-rotation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIntegrated Cable Management: USB Hub and 4A Power Passthrough\u003c\/h3\u003e\n\u003cp\u003eThe EQ8-R incorporates a through-mount cable management system. Power and data connected at the \"IN\" panel on the mount's base are routed internally, with corresponding \"OUT\" ports located near the \u003ca href=\"\/en-int\/collections\/saddles-and-clamps\"\u003esaddle\u003c\/a\u003e. This keeps your setup clean and reliable throughout a night of imaging.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuxiliary Power Out:\u003c\/strong\u003e Provides up to 4A of total output to power your camera, \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e, and other accessories.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSB Hub:\u003c\/strong\u003e A built-in USB hub provides data connections for your imaging and \u003ca href=\"\/en-int\/collections\/guide-cameras\"\u003eguide cameras\u003c\/a\u003e, simplifying your wiring back to the control computer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuxiliary I\/O:\u003c\/strong\u003e Paired RJ10, RJ12, and RJ45 jacks offer straight-through connections for additional accessories.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eMechanical Design: 15° to 65° Latitude Range and D-Style Saddle\u003c\/h3\u003e\n\u003cp\u003eThe EQ8-R has a latitude adjustment range from 15° to 65°. Fine-tuning polar alignment is handled by a large latitude jackscrew and dual azimuth adjustment knobs with a ±10° range. The mount is equipped with a standard D-style saddle, with three knobs that are tightened alternately to secure the dovetail bar.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePowering the EQ8-R: DC 11-16V, 55W Minimum\u003c\/h3\u003e\n\u003cp\u003eThe EQ8-R requires a DC power supply providing 11V to 16V with a minimum output of 55W. Do not use an unregulated AC-to-DC adapter; Sky-Watcher's 13.7V \/ 4A AC-to-DC switching supply is highly recommended. A voltage outside the range may permanently damage the motor controller or the hand controller, and a low voltage may damage the battery and the motor controller.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFrom Box to First Light: Assembly and Balancing\u003c\/h3\u003e\n\u003cp\u003eSetting up the EQ8-R involves securing the 25.8 kg head to a \u003ca href=\"\/en-int\/products\/sky-watcher-eq8-r-pier-tripod\"\u003epier\u003c\/a\u003e or tripod, attaching the 2.6 kg counterweight rod, and loading the two 10 kg counterweights. Once your telescope is mounted on the D-style saddle, balance the mount: loosen the R.A. clutch, rotate the R.A. axis until the counterweight rod is parallel to the ground, and slide the counterweights along the rod until the axis stays put. Next, the Dec. clutch is loosened, and the telescope is slid forward or backward in the saddle until it remains stationary at any angle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSky-Watcher EQ8-R vs. EQ8-RH: Two Paths to Precision\u003c\/h3\u003e\n\u003cp\u003eThe EQ8-R manual covers both the EQ8-R and the EQ8-RH. The EQ8-RH adds a high-resolution Renishaw incremental encoder directly to the R.A. axis. This hardware provides real-time feedback on the axis's position, which helps reduce or eliminate the influence of mechanical periodic error while tracking. The standard EQ8-R relies on its high-resolution stepper motors and the software-based 200-segment PPEC system for periodic error.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 25.8 kg Head\u003c\/h3\u003e\n\u003cp\u003eThe head weighs 25.8 kg (56.9 lb) without the tripod, the counterweight rod weighs 2.6 kg (5.7 lb) and each counterweight 10 kg (22 lb), so plan the set-up in parts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of telescope can I use with the Sky-Watcher EQ8-R's 110 lb payload?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 50 kg (110 lb) rating is for astrophotography and excludes the counterweights. Sky-Watcher does not list specific telescopes for this mount. To determine compatibility, add up the total weight of your optical tube, camera, guide scope, \u003ca href=\"\/en-int\/collections\/filter-wheels\"\u003efilter wheel\u003c\/a\u003e, and any other accessories and compare the total with the mount's rated capacity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the EQ8-R's permanent PEC help my imaging?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAn index on the R.A. worm allows the controller to track the worm's position. After a PEC training run (done via manual guiding or autoguiding), the correction data is stored permanently in the motor controller. This means you can enable PEC at any time to improve tracking performance for short focal length astrophotography, as the manual notes, without needing to retrain every session, assuming your polar alignment is accurate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the power requirements for the Sky-Watcher EQ8-R mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe EQ8-R requires a DC power supply providing 11V to 16V with a minimum output of 55W. Avoid unregulated adapters, as they can cause damage. Higher voltage within the specified range is preferred for optimal motor performance, and Sky-Watcher's 13.7V \/ 4A switching power supply is highly recommended.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do the auto-home sensors on the EQ8-R work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe EQ8-R has two built-in home position sensors. When you power on the mount, the SynScan controller gives you the option to \"Auto-Home.\" If selected, the mount will automatically slew to a precise and repeatable starting position.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I control the Sky-Watcher EQ8-R with my computer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The Sky-Watcher EQ8-R is fully ASCOM compatible. You can connect the mount directly to a PC using its built-in USB port and control it with ASCOM-compatible software. Alternatively, you can use the SynScan Pro app for Windows or Android for direct control.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the integrated cable management system on the EQ8-R?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe cable management system routes power and data cables through the body of the mount, with output ports located near the saddle. This prevents cables from snagging, dragging, or wrapping around the mount as it tracks and slews. It provides outlets for auxiliary power (up to 4A total) and a USB hub, greatly reducing clutter and improving the reliability of an automated imaging setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Sky-Watcher EQ8-R come with a polar scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, a \u003ca href=\"\/en-int\/products\/sky-watcher-eq8-r-series-polar-scope\"\u003epolar scope\u003c\/a\u003e is not included with the EQ8-R mount head but is available as an optional accessory. For precise alignment without a polar scope, the SynScan hand controller includes a software-based polar alignment routine that can be performed after a 2-star or 3-star alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between the Sky-Watcher EQ8-R and the EQ8-RH?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary difference is that the EQ8-RH model includes a high-resolution Renishaw incremental encoder on its R.A. axis. This helps reduce or eliminate the influence of mechanical periodic error while tracking. The standard EQ8-R achieves high tracking accuracy using its precise stepper motors combined with software-based Permanent Periodic Error Correction (PPEC).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I autoguide the EQ8-R?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo autoguide the EQ8-R, you connect your guide camera to the mount's ST-4 autoguide port. The SynScan hand controller allows you to set the autoguiding speed to 0.125x, 0.25x, 0.5x, 0.75x, or 1x the sidereal rate. The port works with any autoguider with an ST-4 type interface.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat do the different LED flashing patterns on the EQ8-R mean?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe LED indicator provides status information about power and PEC. A steady light means power is normal. Slow flashing indicates low voltage. Fast flashing warns of extremely low voltage. Intermittent flashes signal that a PPEC training routine is in progress or that PEC is active during tracking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I balance a large telescope on the Sky-Watcher EQ8-R mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBalancing involves adjusting both the telescope's position in the saddle and the counterweights on the shaft. First, with the clutches loose, slide the two included 10 kg counterweights along the shaft to balance the R.A. axis. Then, adjust the telescope's dovetail bar forward or backward in the D-style saddle to balance the declination axis.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e050234306126\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Type\u003c\/td\u003e\n\u003ctd\u003eGerman equatorial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePayload\u003c\/td\u003e\n\u003ctd\u003e50 kg (110 lb), rated for astrophotography, counterweights excluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Head Weight\u003c\/td\u003e\n\u003ctd\u003e25.8 kg (56.9 lb), tripod excluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCounterweights\u003c\/td\u003e\n\u003ctd\u003e2 x 10 kg (22 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCounterweight Rod\u003c\/td\u003e\n\u003ctd\u003e2.6 kg (5.7 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLatitude Adjustment Range\u003c\/td\u003e\n\u003ctd\u003e15° to 65°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAzimuth Adjustment Range\u003c\/td\u003e\n\u003ctd\u003e±10°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSaddle\u003c\/td\u003e\n\u003ctd\u003eD-style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor\u003c\/td\u003e\n\u003ctd\u003e0.9° hybrid stepper, 256 microsteps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission\u003c\/td\u003e\n\u003ctd\u003e435:1 worm drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e44,544,000 counts per revolution (about 0.03 arc-second)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Slewing Speed\u003c\/td\u003e\n\u003ctd\u003e3.7° per second\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTracking Rates\u003c\/td\u003e\n\u003ctd\u003eSidereal, solar, lunar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuto-Guiding Speeds\u003c\/td\u003e\n\u003ctd\u003e0.125x, 0.25x, 0.5x, 0.75x, 1x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePEC\u003c\/td\u003e\n\u003ctd\u003e200-segment permanent PEC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGoTo Control\u003c\/td\u003e\n\u003ctd\u003eSynScan V5 hand controller (included) or SynScan Pro app; optional Wi-Fi dongle; ASCOM supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDatabase\u003c\/td\u003e\n\u003ctd\u003e42,000+ objects (Messier, NGC, IC, SAO, Caldwell, double stars, variable stars, named stars, planets)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePointing Accuracy\u003c\/td\u003e\n\u003ctd\u003eUp to 5 arc-minutes (RMS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Ports\u003c\/td\u003e\n\u003ctd\u003ePower, USB (USB-to-serial), hand controller, autoguide (ST-4), SNAP shutter release\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Management (IN and OUT through the mount)\u003c\/td\u003e\n\u003ctd\u003eAuxiliary power in 2.0 mm I.D., 5.5 mm O.D., DC 6 to 24 V, 5 A; auxiliary power out 4 A total; USB hub (Type A, 0.9 A per port on auxiliary power); paired RJ10, RJ12 and RJ45 auxiliary I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirement\u003c\/td\u003e\n\u003ctd\u003eDC 11 to 16 V (higher preferred), 55 W minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOther Features\u003c\/td\u003e\n\u003ctd\u003eTwo home position sensors (auto-home), internal hard stops on both axes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTripod\u003c\/td\u003e\n\u003ctd\u003eNot included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eEQ8-R Mount Head\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCounterweight Shaft\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e10 kg (22 lb) Counterweight\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSynScan V5 Hand Controller\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSynScan Hand Controller Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePower Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eShutter Release Cable (Canon EOS)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eJackscrew Handle\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCable Clamp\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e6 mm Allen Wrench\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_EQ8-R_Pro_Mount_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher EQ8-R Pro Mount Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_SynScan_V5_Hand_Control_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload SynScan V5 Hand Controller Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/firmware-and-software\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/apps\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload SynScan Pro App\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/eq-mod.sourceforge.net\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload EQMOD\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967194886429,"sku":"SW-S30612","price":6999.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher-EQ8-R-Mount-Head-Only-with-Counterweights-S30612-1__05300.1594170816.1280.1280.jpg?v=1684338636"},{"product_id":"sky-watcher-eq8-rh-mount-with-pier-tripod","title":"Sky-Watcher EQ8-Rh Mount with Pier Tripod","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e50 kg (110 lb) astrophotography payload capacity\u003c\/li\u003e\n\u003cli\u003eHigh-resolution Renishaw incremental R.A. axis encoder with ~0.11 arc-second resolution\u003c\/li\u003e\n\u003cli\u003e0.03 arc-second drive resolution via 435:1 worm drive\u003c\/li\u003e\n\u003cli\u003eSynScan V5 GoTo controller with 42,000+ object database\u003c\/li\u003e\n\u003cli\u003eHeavy-duty pier tripod with adjustable height from 800 to 1100 mm\u003c\/li\u003e\n\u003cli\u003eIntegrated cable management with auxiliary power and USB hub\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSky-Watcher EQ8-Rh Mount with Pier Tripod\u003c\/h2\u003e\n\u003cp\u003eThe Sky-Watcher EQ8-Rh Mount with Pier Tripod is a German equatorial GoTo mount on an adjustable pier tripod, with a 50 kg (110 lb) payload for astrophotography. Its 435:1 worm drive system, powered by 0.9° hybrid stepper motors, achieves a native resolution of approximately 0.03 arc-seconds . The defining feature of the EQ8-Rh is its Renishaw high-resolution incremental encoder on the R.A. axis, which reads 11,840,000 counts per revolution and helps reduce or eliminate the influence of mechanical periodic error. With the included SynScan V5 hand controller, you can navigate a database of over 42,000 celestial objects at slewing speeds up to 3.7° per second.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 50 kg Payload Capacity\u003c\/h3\u003e\n\u003cp\u003eIt provides a 50 kg (110 lb) payload capacity, rated specifically for astrophotography and excluding the two included 10 kg counterweights. There is no list of compatible telescopes: add up the tube, camera, \u003ca href=\"\/en-int\/collections\/autoguiding\"\u003eguide scope\u003c\/a\u003e and accessories and compare the total with the rating.\u003c\/p\u003e\n\u003cp\u003eThe mount head weighs 25.8 kg (56.9 lb) and the steel pier tripod 29.4 kg (64.8 lb).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 435:1 Worm Drive with a 0.11\" Renishaw Encoder\u003c\/h3\u003e\n\u003cp\u003eThe EQ8-Rh has a 435:1 worm drive transmission paired with 0.9° hybrid stepper motors. With 256 microsteps per step, this gives a drive resolution of approximately 0.03 arc-seconds.\u003c\/p\u003e\n\u003cp\u003eIt is available on the EQ8-RH only: the mount carries a Renishaw high-resolution incremental encoder on the Right Ascension axis. This component provides a resolution of approximately 0.11 arc-seconds (11,840,000 counts per revolution). This encoder helps reduce or eliminate the influence of mechanical periodic error while the mount tracks an object.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCounterweights and Balancing\u003c\/h3\u003e\n\u003cp\u003eThe EQ8-Rh includes a 2.6 kg counterweight rod and two 10 kg counterweights. Balancing reduces stress on the motor drive system and ensures smooth, accurate operation.\u003c\/p\u003e\n\u003cp\u003eFollowing the manual's procedure, you first balance the R.A. axis by loosening the R.A. clutch and rotating the axis until the counterweight rod is parallel to the ground. You then slide the counterweights along the rod until the mount remains stationary without support. After tightening the R.A. clutch, you balance the Declination axis by loosening the Dec. clutch and sliding the telescope's dovetail bar within the \u003ca href=\"\/en-int\/collections\/saddles-and-clamps\"\u003esaddle\u003c\/a\u003e until the optical tube stays put.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAchieving Alignment from 15° to 65° Latitude\u003c\/h3\u003e\n\u003cp\u003eThe EQ8-Rh has a latitude adjustment range of 15° to 65°. Altitude is set with the latitude jackscrew and azimuth with two knobs over a ±10° range. The manual describes three polar alignment methods.\u003c\/p\u003e\n\u003cp\u003eThe \u003ca href=\"\/en-int\/products\/sky-watcher-v5-synscan-handbox-controller\"\u003eSynScan hand controller\u003c\/a\u003e shows the polar alignment error after a 2-star alignment, and its polar alignment routine guides the adjustments. For camera-based polar alignment, Sky-Watcher points to the free PHD2 and SharpCap software. An optional \u003ca href=\"\/en-int\/collections\/polar-scopes\"\u003epolar scope\u003c\/a\u003e can also be installed for direct visual alignment with Polaris or Octans.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSynScan V5: Navigating a 42,000+ Object Database\u003c\/h3\u003e\n\u003cp\u003eThe included SynScan V5 hand controller holds a database of over 42,000 objects, including the Messier, NGC, IC, and SAO catalogs, as well as double stars, variable stars, and planets. After a proper alignment procedure, the system's pointing accuracy is rated for up to 5 arc-minutes (RMS).\u003c\/p\u003e\n\u003cp\u003eThe SynScan system guides you through 1-Star, 2-Star, or 3-Star alignment routines. It can also display the position of Polaris in a polar scope reticle and reporting the calculated polar alignment error after a multi-star alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eASCOM \u0026amp; App Control via USB and Optional Wi-Fi\u003c\/h3\u003e\n\u003cp\u003eThe mount's control panel features a built-in USB port that provides a direct USB-to-serial connection for computer control. All of Sky-Watcher's control options support the ASCOM platform.\u003c\/p\u003e\n\u003cp\u003eFor mobile and wireless control, you can connect an optional \u003ca href=\"\/en-int\/products\/sky-watcher-synscan-wifi-adapter\"\u003eSynScan Wi-Fi dongle\u003c\/a\u003e to the hand controller port. This enables you to control the mount using the free SynScan Pro app, for iOS, Android or Windows. On Windows and Android the app also works over the built-in USB port.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e200-Segment PPEC, Autoguiding, and Camera Control\u003c\/h3\u003e\n\u003cp\u003eIt supports a 200-segment Permanent Periodic Error Correction (PPEC) function. Thanks to an index on the R.A. worm, the controller can permanently store a PEC training curve. After running a training routine once (either manually or with an autoguider), you can enable PEC at the start of any subsequent session to improve tracking, which is beneficial for short-focal-length astrophotography.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto-Guiding:\u003c\/strong\u003e A standard ST-4 autoguide port works with any autoguider with an ST-4 type interface, with selectable guide speeds from 0.125x to 1x sidereal rate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto-Home:\u003c\/strong\u003e Two home position sensors enable the Auto-Home function, allowing the mount to return to a precise, repeatable home position after power-on when commanded by the SynScan controller.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera Control:\u003c\/strong\u003e A built-in SNAP port and an included shutter release cable for Canon EOS cameras enable automated batch exposures. You can program up to 8 groups of exposure times and frame counts directly into the SynScan hand controller.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe 29.4 kg Pier Tripod and D-Style Saddle\u003c\/h3\u003e\n\u003cp\u003eThe steel pier tripod weighs 29.4 kg (64.8 lb). The pier's height is adjustable from 800 mm to 1100 mm.\u003c\/p\u003e\n\u003cp\u003eThe tripod can be placed directly on level ground or on its three included adjustable stands, which feature large leveling screws. At the top, the EQ8-Rh is fitted with a D-style saddle with three knobs that are tightened alternately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePowering the EQ8-Rh: DC 11-16V at 55W Minimum\u003c\/h3\u003e\n\u003cp\u003eThe EQ8-Rh requires a DC power source supplying 11V to 16V with a minimum output of 55W. A higher voltage within this range is preferred for optimal motor performance. The control panel's LED provides a quick status check on the input voltage: it shines steadily for normal voltage, flashes slowly when voltage is low, and flashes rapidly when voltage is critically low, when continuing may damage the battery and the motor controller.\u003c\/p\u003e\n\u003cp\u003eDo not use an unregulated AC-to-DC adapter. Sky-Watcher's 13.7V\/4A AC-to-DC switching supply is highly recommended; a voltage outside 11V to 16V may permanently damage the motor controller or the hand controller.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFirst Night Setup: Assembling the EQ8-Rh and Pier Tripod\u003c\/h3\u003e\n\u003cp\u003eFirst, fully expand the pier tripod legs on level ground. For safety, the manual recommends placing one or both counterweights on the ground under the central post so that no one can put a foot under the post. After loosening the central post clamp, you can adjust the pier to the desired height and secure it.\u003c\/p\u003e\n\u003cp\u003eNext, with the azimuth adjustment knobs loosened, you lift the 25.8 kg mount head and align it with the dowel on the tripod top, securing it with the azimuth locking screws and the primary locking knob. The counterweight rod is then screwed into the mount, followed by the counterweights. Finally, with the R.A. axis locked and the counterweight rod pointing down, you can safely install your telescope onto the D-style saddle and proceed with balancing the entire assembly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eWeights and Dimensions for Transport and Setup\u003c\/h3\u003e\n\u003cp\u003eWithout a telescope, the parts below add up to 77.8 kg (171.5 lb).\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Head Weight:\u003c\/strong\u003e 25.8 kg (56.9 lb)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePier Tripod Weight:\u003c\/strong\u003e 29.4 kg (64.8 lb)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCounterweights:\u003c\/strong\u003e 2 x 10 kg (22 lb) each\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCounterweight Rod:\u003c\/strong\u003e 2.6 kg (5.7 lb)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Renishaw encoder on the Sky-Watcher EQ8-Rh improve tracking?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Renishaw encoder on the R.A. axis is a high-resolution device that directly measures the mount's rotation with a precision of about 0.11 arc-seconds. This helps to reduce or eliminate the influence of mechanical periodic error from the worm drive while the mount is tracking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the true payload of the Sky-Watcher EQ8-Rh for imaging?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Sky-Watcher EQ8-Rh has a stated instrument capacity of 50 kg (110 lb). This rating is specified for astrophotography and excludes the weight of the counterweights. To determine if your setup is compatible, add the weight of your optical tube, camera, guide scope, \u003ca href=\"\/en-int\/collections\/filter-wheels\"\u003efilter wheel\u003c\/a\u003e, and all other accessories; the total should not exceed 50 kg.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of power supply does the Sky-Watcher EQ8-Rh require?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe mount requires a regulated DC power source providing 11V to 16V with a minimum output of 55W. Higher voltage within this range is preferred for best performance, and Sky-Watcher's own 13.7V \/ 4A switching \u003ca href=\"\/en-int\/collections\/power-accessories\"\u003epower supply\u003c\/a\u003e is highly recommended. Do not use an unregulated AC-to-DC adapter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I control the Sky-Watcher EQ8-Rh from a computer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can control the EQ8-Rh from a Windows PC using the mount's built-in USB port, which provides a direct serial connection. The SynScan Pro app for Windows (or Android) works over the USB port or the optional Wi-Fi dongle, and all its control options support the ASCOM platform.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is Permanent PEC on the EQ8-Rh?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003ePermanent Periodic Error Correction (PPEC) is a system that records and corrects for the cyclical errors inherent in the mount's worm gear. An index on the R.A. worm allows the controller to know the worm's exact position. After running a PEC training routine once, the correction data is stored permanently in the motor controller. It improves tracking for short focal length astrophotography, and no new training is needed next session if the polar alignment is accurate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow is the Sky-Watcher EQ8-Rh different from the standard EQ8-R?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe EQ8-Rh adds a Renishaw high-resolution incremental encoder on the Right Ascension axis. This encoder provides a resolution of approximately 0.11 arc-seconds (11,840,000 counts per revolution). This feature helps to reduce or eliminate the influence of mechanical periodic error during tracking. One manual covers both mounts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I properly balance a telescope on the EQ8-Rh?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBalancing is a two-step process. First, balance the R.A. axis: with the telescope and counterweights installed, unlock the R.A. clutch and rotate the axis until the counterweight shaft is horizontal. Slide the counterweights along the shaft until the axis remains stationary. Second, balance the Dec. axis: lock the R.A. axis, unlock the Dec. clutch, and rotate the telescope until it is horizontal. Slide the telescope's dovetail bar forward or backward in the saddle until it also remains stationary. Proper balancing reduces stress on the motors and ensures smooth, accurate operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the LED on the Sky-Watcher EQ8-Rh control panel indicate?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe LED is a power and status indicator. It is steady on for normal voltage, flashes slowly for low voltage, and flashes fast for extremely low voltage. Intermittent flashes (one, two, or three) indicate the status of the PPEC training routine or show that sidereal tracking with PEC is enabled.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the Sky-Watcher EQ8-Rh trigger my camera for astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The mount's control panel has a SNAP port designed for camera shutter control. Using the SynScan V5 hand controller's \"Camera Control\" function, you can program and automate up to 8 groups of batch exposures, setting the exposure time and number of frames for each. The mount includes a shutter release cable for Canon EOS series DSLR cameras; cables for other camera models are optional.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the Auto-Home function on the EQ8-Rh?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe EQ8-Rh is equipped with two home position sensors. This allows the mount, when used with the SynScan hand controller, to return to the exact same home position after powering on.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e050234307017\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Type\u003c\/td\u003e\n\u003ctd\u003eGerman equatorial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePayload\u003c\/td\u003e\n\u003ctd\u003e50 kg (110 lb), rated for astrophotography, counterweights excluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Head Weight\u003c\/td\u003e\n\u003ctd\u003e25.8 kg (56.9 lb), tripod excluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCounterweights\u003c\/td\u003e\n\u003ctd\u003e2 x 10 kg (22 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCounterweight Rod\u003c\/td\u003e\n\u003ctd\u003e2.6 kg (5.7 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLatitude Adjustment Range\u003c\/td\u003e\n\u003ctd\u003e15° to 65°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAzimuth Adjustment Range\u003c\/td\u003e\n\u003ctd\u003e±10°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSaddle\u003c\/td\u003e\n\u003ctd\u003eD-style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePier Tripod\u003c\/td\u003e\n\u003ctd\u003e29.4 kg (64.8 lb), adjustable height 800 to 1100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor\u003c\/td\u003e\n\u003ctd\u003e0.9° hybrid stepper, 256 microsteps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission\u003c\/td\u003e\n\u003ctd\u003e435:1 worm drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e44,544,000 counts per revolution (about 0.03 arc-second)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eR.A. High-Resolution Encoder\u003c\/td\u003e\n\u003ctd\u003eRenishaw incremental encoder, 11,840,000 counts per revolution (about 0.11 arc-second)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Slewing Speed\u003c\/td\u003e\n\u003ctd\u003e3.7° per second\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTracking Rates\u003c\/td\u003e\n\u003ctd\u003eSidereal, solar, lunar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuto-Guiding Speeds\u003c\/td\u003e\n\u003ctd\u003e0.125x, 0.25x, 0.5x, 0.75x, 1x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePEC\u003c\/td\u003e\n\u003ctd\u003e200-segment permanent PEC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGoTo Control\u003c\/td\u003e\n\u003ctd\u003eSynScan V5 hand controller (included) or SynScan Pro app; optional Wi-Fi dongle; ASCOM supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDatabase\u003c\/td\u003e\n\u003ctd\u003e42,000+ objects (Messier, NGC, IC, SAO, Caldwell, double stars, variable stars, named stars, planets)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePointing Accuracy\u003c\/td\u003e\n\u003ctd\u003eUp to 5 arc-minutes (RMS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Ports\u003c\/td\u003e\n\u003ctd\u003ePower, USB (USB-to-serial), hand controller, autoguide (ST-4), SNAP shutter release\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Management (IN and OUT through the mount)\u003c\/td\u003e\n\u003ctd\u003eAuxiliary power in 2.0 mm I.D., 5.5 mm O.D., DC 6 to 24 V, 5 A; auxiliary power out 4 A total; USB hub (Type A, 0.9 A per port on auxiliary power); paired RJ10, RJ12 and RJ45 auxiliary I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirement\u003c\/td\u003e\n\u003ctd\u003eDC 11 to 16 V (higher preferred), 55 W minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOther Features\u003c\/td\u003e\n\u003ctd\u003eTwo home position sensors (auto-home), internal hard stops on both axes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eEQ8-Rh Mount Head\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCounterweight Shaft\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e10 kg (22 lb) Counterweight\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSynScan V5 Hand Controller\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSynScan Hand Controller Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePower Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eShutter Release Cable (Canon EOS)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eJackscrew Handle\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCable Clamp\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e6 mm Allen Wrench\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePier Tripod\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eHand Controller Bracket\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eStand\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 3\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSlide Block\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 3\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eScrew\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 3\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWasher\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 3\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eThumb Screw\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 3\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eM3 x 10 Allen Screw\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWrench\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2.5 mm Allen Wrench\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_EQ8-R_Pro_Mount_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher EQ8-R Pro Mount Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/firmware-and-software\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/apps\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload SynScan Pro App\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/eq-mod.sourceforge.net\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload EQMOD\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967195345181,"sku":"SW-S30701","price":13159.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher-EQ8-Rh-Mount-with-Pier-Tripod-S30701-1__02985.1594170818.1280.1280.jpg?v=1684338651"},{"product_id":"sky-watcher-eq8-rh-mount-head-only-with-counterweights","title":"Sky-Watcher EQ8-Rh Mount Head Only with Counterweights","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e50 kg (110 lb) instrument payload capacity for astrophotography\u003c\/li\u003e\n\u003cli\u003eHigh-resolution Renishaw R.A. axis encoder with 0.11 arc-second resolution\u003c\/li\u003e\n\u003cli\u003e0.9° hybrid stepper motors with a 435:1 worm drive transmission\u003c\/li\u003e\n\u003cli\u003eSynScan V5 GoTo controller with a 42,000+ object database\u003c\/li\u003e\n\u003cli\u003eIntegrated cable management hub with USB and auxiliary power ports\u003c\/li\u003e\n\u003cli\u003e200-segment Permanent Periodic Error Correction (PPEC)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSky-Watcher EQ8-Rh Mount Head Only with Counterweights\u003c\/h2\u003e\n\u003cp\u003eThe Sky-Watcher EQ8-Rh Mount Head is a \u003ca href=\"\/en-int\/collections\/equatorial-mounts\"\u003eGerman equatorial mount\u003c\/a\u003e head for astrophotography, supporting a 50 kg (110 lb) payload. Its defining feature is the Renishaw high-resolution incremental encoder on the R.A. axis, which delivers a resolution of approximately 0.11 arc-seconds from 11,840,000 counts per revolution. The drive system, built around 0.9° hybrid stepper motors and a 435:1 worm drive, achieves a native resolution of about 0.03 arc-seconds, while the included SynScan V5 controller puts over 42,000 celestial objects at your command with a maximum slew speed of 3.7° per second.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSky-Watcher EQ8-Rh: A 50 kg Foundation for Astrophotography\u003c\/h3\u003e\n\u003cp\u003eThe EQ8-Rh offers a 50 kg (110 lb) payload capacity, excluding the two included 10 kg counterweights. There is no list of compatible telescopes: add up the tube, camera, \u003ca href=\"\/en-int\/collections\/autoguiding\"\u003eguide scope\u003c\/a\u003e and accessories and compare the total with the rating.\u003c\/p\u003e\n\u003cp\u003eAs an equatorial mount, it tracks with its polar-aligned R.A. axis. The mount head itself weighs 25.8 kg (56.9 lb).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe Renishaw R.A. Encoder: 0.11 Arc-Second Resolution\u003c\/h3\u003e\n\u003cp\u003eThe EQ8-Rh carries a Renishaw high-resolution incremental encoder on the Right Ascension axis. Sky-Watcher marks it as available on the EQ8-RH only. It reads the axis at a resolution of 11,840,000 counts per revolution, or about 0.11 arc-seconds.\u003c\/p\u003e\n\u003cp\u003eThis encoder helps to reduce or eliminate the influence of mechanical periodic error while the mount is tracking an object. The mount also keeps the 200-segment permanent PEC described below.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDrive System: 0.9° Stepper Motors and a 435:1 Worm Drive\u003c\/h3\u003e\n\u003cp\u003eThe EQ8-Rh's motion is controlled by 0.9° hybrid stepper motors. These motors drive a 435:1 worm gear transmission on each axis. This combination, with 256 microsteps per motor step, gives a resolution of 44,544,000 counts per revolution, or approximately 0.03 arc-seconds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBalancing the Load\u003c\/h3\u003e\n\u003cp\u003eBalance the mount to reduce stress on the motor drive system and to ensure smooth and accurate operation. The EQ8-Rh includes two 10 kg (22 lb) counterweights and a 2.6 kg (5.7 lb) counterweight rod. The balancing procedure involves adjusting both the counterweights on the rod and the telescope's position in the \u003ca href=\"\/en-int\/collections\/saddles-and-clamps\"\u003esaddle\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eFirst, loosen the R.A. clutch, turn the axis until the counterweight rod is parallel to the ground and slide the counterweights until the axis stays put. Next, loosen the Dec. clutch and adjust the telescope's dovetail bar forward or backward within the D-style saddle until the tube stays put.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePolar Alignment from 15° to 65° Latitude\u003c\/h3\u003e\n\u003cp\u003eThe EQ8-Rh has a latitude range from 15° to 65°, adjusted with a jackscrew (handle included), and two azimuth adjustment knobs with a ±10° range.\u003c\/p\u003e\n\u003cp\u003eThe \u003ca href=\"\/en-int\/collections\/polar-scopes\"\u003epolar scope\u003c\/a\u003e is optional. The SynScan V5 hand controller can show the polar alignment error after a 2-star alignment, and its polar alignment routine (no polar scope needed) slews to a reference star and guides you through the altitude and azimuth adjustments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSynScan V5 GoTo: 42,000+ Objects at 3.7° Per Second\u003c\/h3\u003e\n\u003cp\u003eThe included SynScan V5 hand controller is the primary interface for the EQ8-Rh. Its database contains over 42,000 celestial objects, including the Messier, NGC, IC and Caldwell catalogs, as well as SAO stars, double stars, and planets. After a 1-star, 2-star or 3-star alignment, it slews to objects in its database with a pointing accuracy of up to 5 arc-minutes (RMS).\u003c\/p\u003e\n\u003cp\u003eThe mount can slew between targets at a maximum speed of 3.7° per second. It supports standard tracking rates for sidereal, solar, and lunar targets, and offers a range of autoguiding speeds from 0.125x to 1x sidereal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eASCOM, USB, and App Control for Remote Imaging\u003c\/h3\u003e\n\u003cp\u003eThe control panel features a USB port that provides a direct USB-to-serial connection for controlling the mount from a PC. All of Sky-Watcher's control options support the ASCOM platform.\u003c\/p\u003e\n\u003cp\u003eAlternatively, you can control the mount wirelessly by adding the optional \u003ca href=\"\/en-int\/products\/sky-watcher-synscan-wifi-adapter\"\u003eSynScan Wi-Fi dongle\u003c\/a\u003e. This enables control via the SynScan Pro app, for iOS, Android or Windows. On Windows and Android the app also works over the built-in USB port.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePPEC, Auto-Home, and Camera Control for Automation\u003c\/h3\u003e\n\u003cp\u003eThe 200-segment Permanent Periodic Error Correction (PPEC) lets you train the mount (manual or auto-guiding) and stores the data permanently in the motor controller. This means a new training run is not needed for each session, assuming polar alignment is accurate. It improves tracking for short focal length astrophotography.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuto-Home Function:\u003c\/strong\u003e Two built-in home position sensors allow the mount to return to a precise, repeatable starting position on command from the SynScan controller.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutoguide Port:\u003c\/strong\u003e A standard ST-4 compatible autoguide port works with any autoguider with an ST-4 type interface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSNAP Shutter Release:\u003c\/strong\u003e A dedicated SNAP port allows the SynScan controller to trigger a DSLR camera's shutter. The mount includes a cable for Canon EOS models, and the controller's \"Camera Control\" function takes up to 8 groups of exposure-time and frame settings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThrough-Mount Cable Management and D-Style Saddle\u003c\/h3\u003e\n\u003cp\u003eThe EQ8-Rh has an integrated cable management system. Power and data ports on the stationary part of the mount (IN panel) are routed internally to a corresponding set of ports on the moving declination axis (OUT panel).\u003c\/p\u003e\n\u003cp\u003eThe system includes passthroughs for auxiliary power, USB, and paired RJ10, RJ12, and RJ45 jacks. The mount is topped with a D-style saddle, with three knobs, tightened alternately, to hold the telescope's dovetail bar. For safety, both the R.A. and Declination axes are equipped with internal hard stops that protect the mechanical parts, the optical tube and the internal wiring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePowering the EQ8-Rh: 11-16V DC and 55W Minimum\u003c\/h3\u003e\n\u003cp\u003eThe mount requires a DC power source providing between 11V and 16V, with a minimum power output of 55W. A higher voltage within this range is preferred for optimal motor performance, and Sky-Watcher's 13.7V\/4A AC-to-DC switching supply is highly recommended. Do not use an unregulated AC-to-DC adapter.\u003c\/p\u003e\n\u003cp\u003eThe control panel's LED provides a quick status check on the input voltage. A steady light indicates normal power, while slow flashing warns of low voltage, and fast flashing indicates an extremely low voltage that could damage the battery or motor controller.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAssembly and Portability: A 25.8 kg Mount Head\u003c\/h3\u003e\n\u003cp\u003eThe mount head weighs 25.8 kg (56.9 lb), the counterweight shaft is 2.6 kg (5.7 lb), and the two included counterweights are 10 kg (22 lb) each. Setting up involves placing the mount head onto a suitable \u003ca href=\"\/en-int\/collections\/tripods-and-piers\"\u003epier\u003c\/a\u003e or tripod, attaching the counterweight shaft and counterweights, and then mounting the \u003ca href=\"\/en-int\/collections\/optical-tubes\"\u003eoptical tube assembly\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eThe jackscrew handle and a 6 mm Allen wrench are included. Then balance the mount and polar-align it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of telescope can the Sky-Watcher EQ8-Rh support with its 50 kg payload?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 50 kg (110 lb) rating is for astrophotography and excludes the counterweights. Sky-Watcher does not list specific telescopes; you should add up the total weight of your optical tube, camera, guide scope, \u003ca href=\"\/en-int\/collections\/filter-wheels\"\u003efilter wheel\u003c\/a\u003e, and all other accessories to ensure the total is within this limit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the EQ8-Rh's Renishaw encoder improve astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Renishaw encoder provides a high-resolution, real-time measurement of the R.A. axis's actual position, with a resolution of about 0.11 arc-seconds. This helps reduce or eliminate the influence of mechanical periodic error from the worm gear during tracking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between the Sky-Watcher EQ8-Rh and a standard EQ8-R mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe EQ8-Rh adds a high-resolution Renishaw incremental encoder on the R.A. axis of the EQ8-Rh. Sky-Watcher marks the encoder as available on the EQ8-RH only; one manual covers both mounts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I control the Sky-Watcher EQ8-Rh from my computer or smartphone?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The mount can be controlled in several ways: USB Port (The control panel has a USB port that provides a direct USB-to-serial connection to a computer for use with ASCOM-compatible software), Wi-Fi with optional dongle (With the optional SynScan Wi-Fi dongle, you can control the mount wirelessly using the SynScan Pro app on iOS or Android devices). The SynScan Pro app for Windows or Android also works over the USB port, and all options support ASCOM.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I polar align the Sky-Watcher EQ8-Rh?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIf you have an optional polar scope, you can use it for a quick alignment on Polaris. Without one, use the \u003ca href=\"\/en-int\/products\/sky-watcher-v5-synscan-handbox-controller\"\u003eSynScan hand controller\u003c\/a\u003e's \"Polar Alignment\" routine. After performing a 2-star alignment, the routine will slew to a reference star and guide you through making fine adjustments to the mount's altitude and azimuth bolts to minimize polar error.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat power supply is recommended for the EQ8-Rh?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe mount requires a DC \u003ca href=\"\/en-int\/collections\/power-accessories\"\u003epower supply\u003c\/a\u003e providing 11V to 16V with a minimum of 55W. Use a regulated switching power supply; higher voltage within the specified range is preferred for optimal motor performance. Sky-Watcher's own 13.7V \/ 4A switching power supply is the specific recommendation, and unregulated adapters should be avoided.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the \"Auto-Home\" feature on the EQ8-Rh do?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe EQ8-Rh has two home position sensors that allow it, when commanded by the SynScan controller, to slew back to a fixed, mechanically defined home position.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does Permanent PEC (PPEC) on the EQ8-Rh work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe EQ8-Rh has an index on its R.A. worm, allowing the motor controller to track the worm's rotational position. During a PEC training run (done via manual guiding or autoguiding), you record corrections for the worm's periodic error. This data is stored permanently in the motor controller. In subsequent sessions, you can enable \"PEC+Sidereal\" tracking to apply these corrections without retraining, assuming your polar alignment is accurate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs a polar scope included with the EQ8-Rh?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The polar scope is an optional accessory. The SynScan hand controller's polar alignment routine works without one.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat do the LED signals on the EQ8-Rh mean?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSteady on means normal voltage. Slow flashing means low voltage, and fast flashing extremely low voltage, which may damage the battery and the motor controller. One, two or three intermittent flashes show the PPEC training status or that sidereal tracking with PEC is on.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e050234307123\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Type\u003c\/td\u003e\n\u003ctd\u003eGerman equatorial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePayload\u003c\/td\u003e\n\u003ctd\u003e50 kg (110 lb), rated for astrophotography, counterweights excluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Head Weight\u003c\/td\u003e\n\u003ctd\u003e25.8 kg (56.9 lb), tripod excluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCounterweights\u003c\/td\u003e\n\u003ctd\u003e2 x 10 kg (22 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCounterweight Rod\u003c\/td\u003e\n\u003ctd\u003e2.6 kg (5.7 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLatitude Adjustment Range\u003c\/td\u003e\n\u003ctd\u003e15° to 65°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAzimuth Adjustment Range\u003c\/td\u003e\n\u003ctd\u003e±10°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSaddle\u003c\/td\u003e\n\u003ctd\u003eD-style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor\u003c\/td\u003e\n\u003ctd\u003e0.9° hybrid stepper, 256 microsteps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission\u003c\/td\u003e\n\u003ctd\u003e435:1 worm drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e44,544,000 counts per revolution (about 0.03 arc-second)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eR.A. High-Resolution Encoder\u003c\/td\u003e\n\u003ctd\u003eRenishaw incremental encoder, 11,840,000 counts per revolution (about 0.11 arc-second)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Slewing Speed\u003c\/td\u003e\n\u003ctd\u003e3.7° per second\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTracking Rates\u003c\/td\u003e\n\u003ctd\u003eSidereal, solar, lunar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuto-Guiding Speeds\u003c\/td\u003e\n\u003ctd\u003e0.125x, 0.25x, 0.5x, 0.75x, 1x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePEC\u003c\/td\u003e\n\u003ctd\u003e200-segment permanent PEC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGoTo Control\u003c\/td\u003e\n\u003ctd\u003eSynScan V5 hand controller (included) or SynScan Pro app; optional Wi-Fi dongle; ASCOM supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDatabase\u003c\/td\u003e\n\u003ctd\u003e42,000+ objects (Messier, NGC, IC, SAO, Caldwell, double stars, variable stars, named stars, planets)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePointing Accuracy\u003c\/td\u003e\n\u003ctd\u003eUp to 5 arc-minutes (RMS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Ports\u003c\/td\u003e\n\u003ctd\u003ePower, USB (USB-to-serial), hand controller, autoguide (ST-4), SNAP shutter release\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCable Management (IN and OUT through the mount)\u003c\/td\u003e\n\u003ctd\u003eAuxiliary power in 2.0 mm I.D., 5.5 mm O.D., DC 6 to 24 V, 5 A; auxiliary power out 4 A total; USB hub (Type A, 0.9 A per port on auxiliary power); paired RJ10, RJ12 and RJ45 auxiliary I\/O\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirement\u003c\/td\u003e\n\u003ctd\u003eDC 11 to 16 V (higher preferred), 55 W minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOther Features\u003c\/td\u003e\n\u003ctd\u003eTwo home position sensors (auto-home), internal hard stops on both axes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTripod\u003c\/td\u003e\n\u003ctd\u003eNot included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eEQ8-Rh Mount Head\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCounterweight Shaft\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e10 kg (22 lb) Counterweight\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSynScan V5 Hand Controller\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSynScan Hand Controller Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePower Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eShutter Release Cable (Canon EOS)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eJackscrew Handle\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCable Clamp\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e6 mm Allen Wrench\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_EQ8-R_Pro_Mount_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher EQ8-R Pro Mount Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_SynScan_V5_Hand_Control_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload SynScan V5 Hand Control Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/apps\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload SynScan Pro App\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/firmware-and-software\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/eq-mod.sourceforge.net\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload EQMOD\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967195377949,"sku":"SW-S30712","price":11899.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher-EQ8-Rh-Mount-Head-Only-with-Counterweights-S30712-1__11401.1594170819.1280.1280.jpg?v=1684338676"},{"product_id":"sky-watcher-az-eq5-goto-mount","title":"Sky-Watcher AZ-EQ5 GoTo Mount","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eGerman equatorial \/ alt-azimuth dual mode mount\u003c\/li\u003e\n\u003cli\u003e15 kg (33 lb) payload capacity for astrophotography\u003c\/li\u003e\n\u003cli\u003e135:1 worm drive plus 72:12 timing belt transmission\u003c\/li\u003e\n\u003cli\u003eFreedom Find™ dual-encoder technology with 4.2 arc-minute resolution\u003c\/li\u003e\n\u003cli\u003eSynScan V5 hand controller with a 42,000+ object database\u003c\/li\u003e\n\u003cli\u003e1200-segment Permanent Periodic Error Correction (PPEC)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSky-Watcher AZ-EQ5 GoTo Mount\u003c\/h2\u003e\n\u003cp\u003eThe Sky-Watcher AZ-EQ5 GoTo Mount is a hybrid GoTo platform that operates in either German equatorial or \u003ca href=\"\/en-int\/collections\/alt-azimuth-mounts\"\u003ealt-azimuth\u003c\/a\u003e mode, supporting a 15 kg (33 lb) payload for astrophotography. Its transmission combines a 135:1 worm drive with a 72:12 timing belt, driven by 1.8° hybrid stepper motors to achieve a resolution of 0.25 arc-seconds. The 7.7 kg (17 lb) mount head is paired with a 6.1 kg stainless steel pier tripod, two 3.5 kg \u003ca href=\"\/en-int\/products\/sky-watcher-az-eq5-counterweights\"\u003ecounterweights\u003c\/a\u003e, a secondary saddle for dual-telescope use, and the SynScan V5 hand controller with its 42,000+ object database. Auxiliary encoders enable Freedom Find technology, allowing you to move the mount by hand without losing alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSky-Watcher AZ-EQ5: A 15 kg Hybrid Mount for Imaging and Visual Use\u003c\/h3\u003e\n\u003cp\u003eThe AZ-EQ5 works as an \u003ca href=\"\/en-int\/collections\/equatorial-mounts\"\u003eequatorial mount\u003c\/a\u003e or an alt-azimuth mount. It supports a 15 kg instrument payload (excluding counterweights); add up your tube, camera and accessories and compare the total with it.\u003c\/p\u003e\n\u003cp\u003eIn equatorial mode it tracks with its polar-aligned R.A. axis for astrophotography. In alt-azimuth mode, the secondary saddle on the counterweight rod can hold a second telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eEquatorial \u0026amp; Alt-Azimuth: A Dual-Mode System with 15 kg Capacity\u003c\/h3\u003e\n\u003cp\u003eFor equatorial use, the R.A. axis is set to your local latitude.\u003c\/p\u003e\n\u003cp\u003eTo convert to alt-azimuth mode, the R.A. axis is raised to 90° and secured with the Alt-Az mode locking bolt. The included secondary saddle can then be attached to the counterweight rod, allowing a second telescope to be mounted. Remove all counterweights and telescopes before switching modes, and never turn the adjusting handle forcefully. The 120 mm rod extension cannot be used with the secondary saddle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e0.25 Arc-Second Resolution: Hybrid Drive \u0026amp; Freedom Find Encoders\u003c\/h3\u003e\n\u003cp\u003eThe AZ-EQ5's drive system uses 1.8° hybrid stepper motors with a 32 microstep resolution, connected to the main worm gear through a 72:12 timing belt drive. The gear ratio is 810, for a resolution of 5,184,000 counts per revolution, or 0.25 arc-seconds.\u003c\/p\u003e\n\u003cp\u003eWith Sky-Watcher's Freedom Find dual encoders, the telescope can be moved by hand in either axis without losing its alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e15 kg Payload: Balancing with Two 3.5 kg Counterweights\u003c\/h3\u003e\n\u003cp\u003eThe mount's 15 kg astrophotography payload is supported by an 18 mm diameter counterweight rod and two included 3.5 kg (7.7 lb) counterweights. A 120 mm extension for the counterweight rod is also supplied. \u003c\/p\u003e\n\u003cp\u003eTo balance the mount, first install the telescope and counterweights. With the R.A. clutch loose, adjust the position of the counterweights on the rod until the mount remains stationary with the rod horizontal. Then, lock the R.A. axis and loosen the Dec. clutch, sliding the telescope forward or backward in its saddle until it too is balanced.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e0° to 90° Latitude Range: Polar Alignment with the Pier Tripod\u003c\/h3\u003e\n\u003cp\u003eOn the included pier tripod the latitude range is 0° to 90° (28° to 90° on a standard tripod). The mount also provides approximately ±15° of fine adjustment in azimuth.\u003c\/p\u003e\n\u003cp\u003eThe \u003ca href=\"\/en-int\/products\/sky-watcher-v5-synscan-handbox-controller\"\u003eSynScan hand controller\u003c\/a\u003e includes alignment routines to assist in this process, including a polar alignment routine that can be used after a 2-star or 3-star alignment to refine your setup. An optional \u003ca href=\"\/en-int\/products\/sky-watcher-az-eq5-polar-scope\"\u003epolar scope\u003c\/a\u003e kit is available for quick polar alignment. The hand controller provides the orientation of Polaris within the polar scope's reticle based on your time and location.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSynScan V5 Controller: A 42,000+ Object Database\u003c\/h3\u003e\n\u003cp\u003eThe included SynScan V5 hand controller contains a database of over 42,000 objects, including the Messier, NGC, IC, and SAO catalogs, as well as planets, named stars, double stars, and variable stars. After a 1-star, 2-star or 3-star alignment, the mount can automatically slew to and track any object in its database.\u003c\/p\u003e\n\u003cp\u003eIt sets tracking rates (sidereal, solar, and lunar), autoguiding speeds, and backlash compensation. Its utilities include polar alignment and identifying objects near where the telescope points.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePC, App, and Camera Control: USB, ST-4, and 2 SNAP Ports\u003c\/h3\u003e\n\u003cp\u003eThe control panel has a USB port (USB-to-serial) for computer control and an RJ-12 autoguide port for an \u003ca href=\"\/en-int\/collections\/autoguiding\"\u003eautoguider\u003c\/a\u003e with an ST-4 type interface.\u003c\/p\u003e\n\u003cp\u003eThe mount also features two SNAP ports for DSLR camera control. Using the SynScan hand controller's \"Camera Control\" function, you can program batch exposures; the two stereo outlets trigger two cameras' shutters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e1200-Segment PPEC: Autoguiding at 5 Speeds from 0.125x to 1x\u003c\/h3\u003e\n\u003cp\u003eFor advanced astrophotography, the AZ-EQ5 features 1200-segment Permanent Periodic Error Correction (PPEC). The R.A. worm is indexed, allowing the motor controller to know its precise rotational position. This enables the mount to record a PEC training session, where it learns the specific imperfections of its worm gear. This data is stored permanently in the controller.\u003c\/p\u003e\n\u003cp\u003eOnce trained, PEC can be started in later sessions without retraining, assuming accurate polar alignment. The mount also offers five selectable autoguiding speeds, 0.125x, 0.25x, 0.5x, 0.75x, and 1x.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e1.75-inch Pier Tripod and 11-16V DC Power Requirement\u003c\/h3\u003e\n\u003cp\u003eThe pier tripod has 1.75-inch stainless steel legs and weighs 6.1 kg (13.4 lb). The mount requires a DC power supply rated for 11V to 16V, 3A. Do not use an unregulated AC-to-DC adapter; use a switching power supply with 15V output.\u003c\/p\u003e\n\u003cp\u003eA power LED on the control panel indicates the power status: steady for normal voltage, slow flashing for low voltage, and fast flashing for critically low voltage; if the voltage is too low the motor controller stops the motors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFirst Night Setup: Assembly in 5 Key Steps\u003c\/h3\u003e\n\u003cp\u003eThe manual's set-up, in short:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1. Tripod Setup:\u003c\/strong\u003e Unfold the pier tripod legs, secure them with the thumb screws, and extend the legs so the pier top is level; the mount's bubble leveler confirms it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2. Attach Mount Head:\u003c\/strong\u003e Seat the 7.7 kg mount head onto the tripod's central dowel, engaging the azimuth adjustment knobs, and secure it from below using the flexible shaft's thumb screw.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3. Install Counterweights:\u003c\/strong\u003e With the R.A. axis clutch locked, extend the counterweight rod and slide the two 3.5 kg counterweights onto the shaft, securing them on the rod.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4. Mount Telescope:\u003c\/strong\u003e Lock the R.A. axis and rotate the Dec. axis so the saddle is horizontal. Seat your telescope's \u003ca href=\"\/en-int\/collections\/dovetail-plates\"\u003edovetail bar\u003c\/a\u003e into the saddle and tighten the saddle's locking screws.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5. Balance Both Axes:\u003c\/strong\u003e Sequentially unlock the R.A. and Dec. clutches, adjusting the counterweights and the telescope's position until each axis stays put.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eField Portability: A 7.7 kg Head and 6.1 kg Tripod\u003c\/h3\u003e\n\u003cp\u003eThe mount head weighs 7.7 kg (17 lb) and the pier tripod weighs 6.1 kg (13.4 lb).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main advantage of the Sky-Watcher AZ-EQ5's hybrid design?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt works as a German equatorial mount for astrophotography or as an alt-azimuth mount, which allows the use of the included secondary saddle to mount two telescopes simultaneously.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I move the Sky-Watcher AZ-EQ5 by hand without losing GoTo alignment?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. With Sky-Watcher's Freedom Find dual encoders, the telescope can be moved by hand in either axis without losing its alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much imaging equipment can the Sky-Watcher AZ-EQ5 carry?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe AZ-EQ5 has an astrophotography payload capacity of 15 kg (33 lb). This figure excludes the weight of the counterweights.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I power the Sky-Watcher AZ-EQ5 in the field?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe mount needs DC 11V to 16V at 3A. Do not use an unregulated AC-to-DC adapter; use a switching power supply with 15V output.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the process for setting up the Sky-Watcher AZ-EQ5 in Alt-Azimuth mode for observing with two telescopes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFirst, ensure all telescopes and counterweights are removed. Adjust the R.A. axis elevation to the 90° position and secure it with the Alt-Az mode locking bolt. Attach the secondary saddle to the end of the counterweight rod. You can then mount your primary telescope in the main saddle and a secondary telescope on the secondary saddle. The manual recommends balancing the system in equatorial mode first to find the correct counterweight position before switching to Alt-Az mode.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIn the Northern Hemisphere, how does the SynScan controller show where Polaris sits for the AZ-EQ5's optional polar scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAfter you complete the initial setup on the SynScan V5 hand controller (entering location, date, and time), it will display a \"Polaris Position in P.Scope\" value, such as \"HH:MM\". This corresponds to a clock face superimposed on the polar scope's reticle, with 12:00 at the top. You then use the mount's altitude and azimuth adjustment knobs to place Polaris at that clock position on the circle within the reticle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is Permanent Periodic Error Correction (PPEC) on the AZ-EQ5?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003ePPEC is a feature that improves tracking accuracy. The mount's R.A. worm has an index, allowing the controller to record the specific, repeating tracking errors caused by tiny imperfections in the gear over a full rotation. After running a PEC training routine (either manually or with an autoguider), this 1200-segment correction is stored permanently. You can then enable PEC in future sessions for smoother tracking without retraining, assuming your polar alignment is accurate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat drive system does the Sky-Watcher AZ-EQ5 use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe AZ-EQ5 uses a hybrid drive system. It combines a 135:1 worm drive with a 72:12 timing belt drive. This transmission is powered by 1.8° hybrid stepper motors, for a resolution of 0.25 arc-second.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the secondary saddle and the counterweight rod extension at the same time on the AZ-EQ5?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The manual specifies that the 120 mm counterweight rod extension cannot be used when the secondary saddle is installed. The secondary saddle is designed to mount directly onto the end of the main 162 mm counterweight rod and is recommended for use only when the mount is in Alt-Azimuth mode.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat latitude range does the Sky-Watcher AZ-EQ5 cover?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWith the included pier tripod, the mount has a latitude adjustment range of 0° to 90°. This allows it to be polar aligned anywhere in the world. If used on a standard tripod, the range is 28° to 90°.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat's included with the Sky-Watcher AZ-EQ5 for camera control?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe mount includes two SNAP ports on its control panel. The SynScan V5 hand controller has a built-in \"Camera Control\" function that can trigger cameras connected to these ports for programmed batch exposures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat do I do before switching the AZ-EQ5 between equatorial and alt-azimuth modes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou must remove all counterweights and the telescope(s) from the mount before changing modes. This is to prevent damage to the latitude adjustment mechanism. Never turn the adjustment handle forcefully when it reaches its stop.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e050234302005\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Type\u003c\/td\u003e\n\u003ctd\u003eGerman equatorial \/ alt-azimuth dual mode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePayload\u003c\/td\u003e\n\u003ctd\u003e15 kg (33 lb), counterweights excluded, for astrophotography\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Head Weight\u003c\/td\u003e\n\u003ctd\u003e7.7 kg (17 lb), tripod excluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTripod\u003c\/td\u003e\n\u003ctd\u003e1.75-inch stainless steel pier tripod, 6.1 kg (13.4 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCounterweights\u003c\/td\u003e\n\u003ctd\u003e2 x 3.5 kg (7.7 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCounterweight Rod\u003c\/td\u003e\n\u003ctd\u003e18 mm diameter, 162 mm plus 120 mm extension\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLatitude Adjustment Range\u003c\/td\u003e\n\u003ctd\u003e0° to 90° on the pier tripod (28° to 90° on a standard tripod)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAzimuth Adjustment Range\u003c\/td\u003e\n\u003ctd\u003eAbout ±15°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotors\u003c\/td\u003e\n\u003ctd\u003e1.8° hybrid stepper motors, 32 microsteps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission\u003c\/td\u003e\n\u003ctd\u003e135:1 worm drive plus 72:12 timing belt drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGear Ratio\u003c\/td\u003e\n\u003ctd\u003e810\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e5,184,000 counts per revolution (0.25 arc-second)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuxiliary Encoders\u003c\/td\u003e\n\u003ctd\u003e5144 counts per revolution (about 4.2 arc-minutes), Freedom Find\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Slewing Speed\u003c\/td\u003e\n\u003ctd\u003e4.2° per second\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTracking Rates\u003c\/td\u003e\n\u003ctd\u003eSidereal, solar, lunar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuto-Guiding Speeds\u003c\/td\u003e\n\u003ctd\u003e0.125x, 0.25x, 0.5x, 0.75x, 1x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePEC\u003c\/td\u003e\n\u003ctd\u003e1200-segment permanent PEC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDatabase\u003c\/td\u003e\n\u003ctd\u003e42,000+ objects (Messier, NGC, IC, SAO, Caldwell, double stars, variable stars, named stars, planets)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePointing Accuracy\u003c\/td\u003e\n\u003ctd\u003eUp to 5 arc-minutes (RMS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Ports\u003c\/td\u003e\n\u003ctd\u003ePower, hand control (RJ-45), autoguide (RJ-12, ST-4), two SNAP camera ports, USB (USB-to-serial), on\/off switch, power LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecondary Saddle\u003c\/td\u003e\n\u003ctd\u003eMounts on the counterweight rod for a second telescope\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePolar Scope\u003c\/td\u003e\n\u003ctd\u003eOptional kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirement\u003c\/td\u003e\n\u003ctd\u003eDC 11 to 16 V, 3 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eAZ-EQ5 Mount Head\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePier Tripod\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSynScan V5 Hand Controller\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e3.5 kg (7.7 lb) Counterweight\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCounterweight Rod Extension\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSecondary Saddle\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eShutter Release Cable (Canon EOS)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDC Power Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_AZ-EQ5_Mount_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher AZ-EQ5 Mount Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/apps\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload SynScan Pro App\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/firmware-and-software\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/eq-mod.sourceforge.net\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload EQMOD\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967195410717,"sku":"SW-S30200","price":2379.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher-AZ-EQ5-GoTo-Mount-S30200-1__88283.1594170822.1280.1280.jpg?v=1684338688"},{"product_id":"sky-watcher-az-eq6-goto-mount","title":"Sky-Watcher AZ-EQ6 GoTo Mount","description":"\u003cul class=\"DAV-feature-list\"\u003e\n  \u003cli\u003eGerman equatorial and alt-azimuth dual-mode functionality\u003c\/li\u003e\n  \u003cli\u003e20 kg (44 lb) instrument payload capacity, counterweights excluded\u003c\/li\u003e\n  \u003cli\u003e180:1 worm drive with a 48:12 timing belt and 1.8° stepper motors\u003c\/li\u003e\n  \u003cli\u003eFreedom Find™ dual-encoder system allows manual movement without losing alignment\u003c\/li\u003e\n  \u003cli\u003eSynScan GoTo controller with a 42,000+ object database\u003c\/li\u003e\n  \u003cli\u003eIncludes two 5 kg (11 lb) counterweights and a second saddle for dual-telescope use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n      \u003cdiv class=\"DAV-bg-light\"\u003e\n        \u003cdiv class=\"DAV-section-center\"\u003e\n          \u003ch2\u003eSky-Watcher AZ-EQ6 GoTo Mount\u003c\/h2\u003e\n          \u003cp\u003eThe \u003cstrong\u003eSky-Watcher AZ-EQ6 GoTo Mount\u003c\/strong\u003e is a dual-mode GoTo mount supporting a 20 kg (44 lb) payload in either German equatorial or \u003ca href=\"\/en-int\/collections\/alt-azimuth-mounts\"\u003ealt-azimuth\u003c\/a\u003e mode. Its drive system, combining a 180:1 worm drive and a 48:12 timing belt, is powered by 1.8° hybrid stepper motors to achieve a tracking resolution of approximately 0.14 arc-seconds. Pointing accuracy of up to 5 arc-minutes (RMS) is managed by the \u003ca href=\"\/en-int\/products\/sky-watcher-v5-synscan-handbox-controller\"\u003eSynScan hand controller\u003c\/a\u003e, which contains a database of over 42,000 celestial objects. The 15.4 kg (34 lb) mount head is supported by a 7.5 kg (16.5 lb) tripod with 2-inch stainless steel legs.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"DAV-bg-light\"\u003e\n        \u003cdiv class=\"DAV-section\"\u003e\n          \u003ch3\u003eThe Sky-Watcher AZ-EQ6 GoTo Mount: A 20 kg Dual-Mode Platform\u003c\/h3\u003e\n          \u003cp\u003eThe AZ-EQ6 carries 20 kg (44 lb), \u003ca href=\"\/en-int\/products\/sky-watcher-az-eq6-counterweight\"\u003ecounterweights\u003c\/a\u003e excluded, in German equatorial (EQ) mode for astrophotography or in alt-azimuth (AZ) mode, where a second saddle lets it hold two telescopes.\u003c\/p\u003e\n          \u003cp\u003eIt combines a belt-driven transmission with 180-tooth brass worm gears, 100-segment permanent PEC, an ST-4 type autoguide port and Freedom Find dual encoders, which keep the alignment when you move the telescope by hand.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"DAV-bg-light\"\u003e\n        \u003cdiv class=\"DAV-section\"\u003e\n          \u003ch3\u003eEquatorial or Alt-Azimuth Mode\u003c\/h3\u003e\n          \u003cp\u003eThe defining feature of the AZ-EQ6 is its ability to transform its mechanical configuration. In equatorial mode, the Right Ascension axis is tilted to your local latitude, adjustable from 10° to 75°.\u003c\/p\u003e\n          \u003cp\u003eTo switch to alt-azimuth mode, you set the R.A. axis to a 90° latitude. The AZ-EQ6 includes a second dual-fit saddle that can be mounted on the counterweight rod, allowing you to use two separate telescopes simultaneously. Remove all counterweights and telescopes before switching between modes.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"DAV-bg-light\"\u003e\n        \u003cdiv class=\"DAV-section\"\u003e\n          \u003ch3\u003eDrive System: 180:1 Worm \u0026amp; Belt Drive with 0.14 Arc-Second Resolution\u003c\/h3\u003e\n          \u003cp\u003eThe precision of the AZ-EQ6 is rooted in its drive train. It uses a 48:12 timing belt to connect the 1.8° hybrid stepper motors to the 180:1 worm drives. The R.A. and Dec worm gears are made from brass and feature 180 teeth on a 92.5 mm diameter.\u003c\/p\u003e\n          \u003cp\u003eThis mechanical arrangement produces a final gear ratio of 720, which gives 9,216,000 counts per revolution. The resulting resolution of approximately 0.14 arc-seconds per step. The mount's auxiliary encoders, part of the Freedom Find system, offer a resolution of 6356 counts per revolution, or about 3.4 arc-minutes.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"DAV-bg-light\"\u003e\n        \u003cdiv class=\"DAV-section\"\u003e\n          \u003ch3\u003eA 20 kg Capacity on a 7.5 kg Steel Tripod\u003c\/h3\u003e\n          \u003cp\u003eThe rated payload is 20 kg (44 lb), excluding counterweights. The head weighs 15.4 kg (34 lb) without the tripod.\u003c\/p\u003e\n          \u003cp\u003eThe entire system is anchored by a heavy-duty tripod with 2-inch diameter stainless steel legs, which weighs 7.5 kg (16.5 lb). The mount includes two 5 kg (11 lb) counterweights that attach to a 25 mm diameter counterweight rod, and a 150 mm counterweight rod extension is included.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"DAV-bg-light\"\u003e\n        \u003cdiv class=\"DAV-section\"\u003e\n          \u003ch3\u003ePolar Alignment: Precision Across a 10° to 75° Latitude Range\u003c\/h3\u003e\n          \u003cp\u003eThe mount's latitude can be adjusted from 10° to 75°. The adjustment is made with the latitude jackscrew, while two azimuth adjustment knobs give a ±9° range.\u003c\/p\u003e\n          \u003cp\u003eThe \u003ca href=\"\/en-int\/collections\/polar-scopes\"\u003epolar scope\u003c\/a\u003e is built into the mount. The SynScan hand controller assists by displaying the correct orientation of Polaris in the polar scope's reticle for your exact time and location. The manual also gives a polar alignment method using the SynScan hand controller.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"DAV-bg-light\"\u003e\n        \u003cdiv class=\"DAV-section\"\u003e\n          \u003ch3\u003eGoTo Control: The SynScan Controller's 42,000+ Object Database\u003c\/h3\u003e\n          \u003cp\u003eThe included SynScan hand controller holds the GoTo database contains over 42,000 objects, including the Messier, NGC, IC, SAO, and Caldwell catalogs, plus double stars, variable stars, named stars, and all the planets. After performing an alignment procedure, you can command the mount to slew to any object in the database at speeds up to 4.2° per second.\u003c\/p\u003e\n          \u003cp\u003eThe controller offers multiple alignment options to suit your needs. Star alignment methods differ between EQ and AZ mode. The hand controller also handles setting tracking rates (sidereal, solar, or lunar), configuring autoguiding speeds, and running the Permanent Periodic Error Correction (PPEC) training routine.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"DAV-bg-light\"\u003e\n        \u003cdiv class=\"DAV-section\"\u003e\n          \u003ch3\u003ePorts: Autoguide, SNAP, Hand Control and Power\u003c\/h3\u003e\n          \u003cp\u003eThe control panel has four ports.\u003c\/p\u003e\n\u003cul\u003e\n            \u003cli\u003eAutoguide (RJ-12): compatible with any ST-4 type \u003ca href=\"\/en-int\/collections\/autoguiding\"\u003eautoguider\u003c\/a\u003e.\u003c\/li\u003e\n            \u003cli\u003eSNAP: stereo outlet for a camera's shutter control port, for batch exposures controlled by the SynScan hand controller.\u003c\/li\u003e\n            \u003cli\u003eHand control (RJ-45): for the SynScan hand controller. A power LED shows voltage and PPEC status.\u003c\/li\u003e\n            \u003cli\u003ePower: DC 11 to 16 V, 4 A at 11 V or 2.5 A at 16 V, with a knurled locking cap.\u003c\/li\u003e\n          \u003c\/ul\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"DAV-bg-light\"\u003e\n        \u003cdiv class=\"DAV-section\"\u003e\n          \u003ch3\u003eTracking \u0026amp; Guiding: 100-Segment PPEC and 4.2°\/sec Slewing\u003c\/h3\u003e\n          \u003cp\u003eThe AZ-EQ6 incorporates two key technologies for high-precision tracking. The first is Freedom Find™, which uses auxiliary encoders on both the R.A. and Declination axes. These encoders track the mount's position even when you disengage the clutches and move the telescope by hand. This allows you to manually swing the scope to a new target without losing your GoTo alignment; re-lock the clutches to continue with the hand controller.\u003c\/p\u003e\n          \u003cp\u003eThe second is 100-segment Permanent Periodic Error Correction (PPEC). The R.A. worm gear has an index sensor that allows the motor controller to record and permanently store corrections for the worm's inherent periodic error. After running a training routine one time with an autoguider or PC, the mount can apply these corrections in any future session , assuming your polar alignment is accurate.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"DAV-bg-light\"\u003e\n        \u003cdiv class=\"DAV-section\"\u003e\n          \u003ch3\u003eHardware \u0026amp; Power: 2-Inch Tripod, Dual-Fit Saddles, and 11-16V Requirements\u003c\/h3\u003e\n          \u003cp\u003eThe mount is supplied with two dual-fit saddles, one for the primary position and one for secondary use in AZ mode. Each saddle accepts both the narrow 45 mm V-style and wider 75 mm D-style \u003ca href=\"\/en-int\/collections\/dovetail-plates\"\u003edovetail bars\u003c\/a\u003e.\u003c\/p\u003e\n          \u003cp\u003eThe mount requires a \u003ca href=\"\/en-int\/products\/pegasus-power-cable-for-sky-watcher-eq6-r-az-eq6\"\u003eDC power supply\u003c\/a\u003e providing between 11 V and 16 V. At 11 V, it draws 4 A, while at 16 V it draws 2.5 A. Do not use an unregulated AC-to-DC adapter; use a switching power supply with a 15 V output and at least 3 A output current. The power input on the mount features a knurled locking cap to prevent accidental disconnection.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"DAV-bg-light\"\u003e\n        \u003cdiv class=\"DAV-section\"\u003e\n          \u003ch3\u003eAssembly \u0026amp; Setup: Balancing with Two 5 kg Counterweights\u003c\/h3\u003e\n          \u003cp\u003eFirst, extend the 2-inch steel tripod legs and level the tripod head. The 15.4 kg mount head is then placed on the tripod and secured from below with the primary locking shaft. After attaching the accessory tray to brace the legs, you install the two 5 kg counterweights onto the 202 mm counterweight rod. The 150 mm extension can be installed at this point if needed.\u003c\/p\u003e\n          \u003cp\u003eWith the counterweights in place, you mount your telescope onto the dual-fit saddle. You must balance the mount on both the R.A. and Dec axes independently. This is done by loosening one clutch at a time, adjusting the position of the counterweights on the rod and the telescope in its rings or on the saddle, until each axis stays put with its clutch loosened.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"DAV-bg-light\"\u003e\n        \u003cdiv class=\"DAV-section\"\u003e\n          \u003ch3\u003eComponent Weights\u003c\/h3\u003e\n          \u003cp\u003eThe mount head weighs 15.4 kg (34 lb), the tripod 7.5 kg (16.5 lb), and each counterweight 5 kg (11 lb).\u003c\/p\u003e\n                  \u003c\/div\u003e\n      \u003c\/div\u003e\n    \n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat payload can the Sky-Watcher AZ-EQ6 carry in each mode?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Sky-Watcher AZ-EQ6 has a rated payload capacity of 20 kg (44 lb) in both German equatorial (EQ) and alt-azimuth (AZ) modes. This capacity does not include the weight of the counterweights.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the dual-mode functionality of the AZ-EQ6 work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe AZ-EQ6 can be mechanically configured for two different operational modes. In Equatorial Mode, the R.A. axis is tilted to match your local latitude (from 10° to 75°). In Alt-Azimuth Mode, the R.A. axis is set to 90°, and a second telescope can go on the secondary saddle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the Freedom Find™ feature on the Sky-Watcher AZ-EQ6?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAuxiliary encoders on both axes keep track of the position when you unlock the clutches and move the mount by hand, so the alignment is kept. Re-lock the clutches to continue with the hand controller.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I set up the AZ-EQ6 with two telescopes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eRemove all counterweights and telescopes, then set the R.A. axis to 90° for alt-azimuth mode. Install the included second dual-fit saddle on the counterweight rod and mount the second telescope there, then balance the load.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is Permanent Periodic Error Correction (PPEC) on the AZ-EQ6?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003ePPEC is a feature that improves tracking accuracy. The AZ-EQ6 has an index on its R.A. worm, allowing it to record the specific periodic error of your mount's gear. After running a one-time training routine (with an autoguider or manually), the correction data is stored permanently. In future sessions, you can enable PEC to have the mount actively correct for this error, assuming accurate polar alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of power supply does the Sky-Watcher AZ-EQ6 need?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eDC 11 V to 16 V: 4 A at 11 V or 2.5 A at 16 V. Do not use an unregulated AC-to-DC adapter; use a switching supply with 15 V output and at least 3 A.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat dovetail bars do the AZ-EQ6 saddles accept?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Sky-Watcher AZ-EQ6 comes with two dual-fit saddles. Both saddles are compatible with both the narrow 45 mm (V-style) and the wider 75 mm (D-style) dovetail bars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a computer to operate the Sky-Watcher AZ-EQ6?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, a computer is not required for full operation. The mount includes a SynScan hand controller that provides complete GoTo functionality, access to the 42,000+ object database, and control over all mount settings like tracking rates and PEC.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat drive system does the AZ-EQ6 use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA 48:12 timing belt links the 1.8° hybrid stepper motors to 180:1 brass worm gears (92.5 mm, 180 teeth). The final gear ratio is 720, for 9,216,000 counts per revolution, about 0.14 arc-second.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the AZ-EQ6 control my DSLR camera for imaging?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The mount has a SNAP port, which is a shutter release port. By connecting your camera to this port with the appropriate cable, you can use the SynScan hand controller's \"Camera Control\" function to program and automate a sequence of exposures, including exposure time and number of frames.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow heavy is the AZ-EQ6 to transport to a dark site?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe component weights are: mount head at 15.4 kg (34 lb), tripod at 7.5 kg (16.5 lb), and two counterweights at 5 kg (11 lb) each.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Type\u003c\/td\u003e\n\u003ctd\u003eGerman equatorial \/ alt-azimuth dual mode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePayload\u003c\/td\u003e\n\u003ctd\u003e20 kg (44 lb), counterweights excluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Head Weight\u003c\/td\u003e\n\u003ctd\u003e15.4 kg (34 lb), tripod excluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTripod\u003c\/td\u003e\n\u003ctd\u003e2-inch stainless steel, 7.5 kg (16.5 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCounterweights\u003c\/td\u003e\n\u003ctd\u003e2 x 5 kg (11 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCounterweight Rod\u003c\/td\u003e\n\u003ctd\u003e25 mm diameter, 202 mm plus 150 mm extension\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSaddles\u003c\/td\u003e\n\u003ctd\u003eTwo dual-fit saddles accepting 45 mm and 75 mm dovetail bars\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLatitude Adjustment Range\u003c\/td\u003e\n\u003ctd\u003e10° to 75° (EQ), 90° (AZ)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAzimuth Adjustment Range\u003c\/td\u003e\n\u003ctd\u003eAbout ±9°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotors\u003c\/td\u003e\n\u003ctd\u003e1.8° hybrid stepper motors, 64 microsteps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission\u003c\/td\u003e\n\u003ctd\u003e180:1 worm drive plus 48:12 timing belt drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorm Gears\u003c\/td\u003e\n\u003ctd\u003eR.A.\/Dec 92.5 mm, 180 teeth, brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGear Ratio\u003c\/td\u003e\n\u003ctd\u003e720\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e9,216,000 counts per revolution (about 0.14 arc-second)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuxiliary Encoders\u003c\/td\u003e\n\u003ctd\u003e6356 counts per revolution (about 3.4 arc-minutes), Freedom Find\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Slewing Speed\u003c\/td\u003e\n\u003ctd\u003e4.2° per second\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTracking Rates\u003c\/td\u003e\n\u003ctd\u003eSidereal, solar, lunar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuto-Guiding Speeds\u003c\/td\u003e\n\u003ctd\u003e0.125x, 0.25x, 0.5x, 0.75x, 1x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePEC\u003c\/td\u003e\n\u003ctd\u003e100-segment permanent PEC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDatabase\u003c\/td\u003e\n\u003ctd\u003e42,000+ objects (Messier, NGC, IC, SAO, Caldwell, double stars, variable stars, named stars, planets)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePointing Accuracy\u003c\/td\u003e\n\u003ctd\u003eUp to 5 arc-minutes (RMS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Ports\u003c\/td\u003e\n\u003ctd\u003ePower, hand control, autoguide (ST-4), SNAP shutter release\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePolar Scope\u003c\/td\u003e\n\u003ctd\u003eBuilt in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirement\u003c\/td\u003e\n\u003ctd\u003eDC 11 to 16 V, 4 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eAZ-EQ6 Mount Head\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2-inch Steel Tripod\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSynScan Hand Controller\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e5 kg (11 lb) Counterweight\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCounterweight Rod Extension\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDual-Fit Saddle (second telescope)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eAccessory Tray\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePower Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_AZ-EQ6_Mount_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher AZ-EQ6 Mount Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/firmware-and-software\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/apps\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload SynScan Pro App\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/eq-mod.sourceforge.net\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload EQMOD Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967195443485,"sku":"SW-S30330","price":3219.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher-AZ-EQ6-GoTo-Mount-S30330-1__27379.1594170826.1280.1280.jpg?v=1684338701"},{"product_id":"sky-watcher-az-gti-mount","title":"Sky-Watcher AZ-GTi Mount","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAlt-azimuth GoTo mount with a 5 kg (11 lb) payload capacity\u003c\/li\u003e\n\u003cli\u003eMount head weighs just 1.3 kg (2.9 lb); fully assembled system is about 4 kg (8.6 lb)\u003c\/li\u003e\n\u003cli\u003eBuilt-in Wi-Fi for full GoTo control via the SynScan Pro app (iOS\/Android)\u003c\/li\u003e\n\u003cli\u003eFreedom Find™ auxiliary encoders track position during manual movement\u003c\/li\u003e\n\u003cli\u003ePowered by 8 AA batteries (not included) or an external DC 7.5 to 14 V supply\u003c\/li\u003e\n\u003cli\u003eIncludes adjustable aluminum tripod and pier extension\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSky-Watcher AZ-GTi Mount\u003c\/h2\u003e\n\u003cp\u003eThe Sky-Watcher AZ-GTi is an \u003ca href=\"\/en-int\/collections\/alt-azimuth-mounts\"\u003ealt-azimuth\u003c\/a\u003e GoTo mount with a 5 kg (11 lb) payload capacity and a mount head that weighs 1.3 kg (2.9 lb). Controlled entirely over its built-in Wi-Fi via the SynScan Pro app, it gives you access to a database of over 42,900 celestial objects. With the included adjustable aluminum tripod and 0.5 kg pier extension, the complete system weighs about 4 kg (8.6 lb) and runs on 8 AA batteries or an external 7.5 to 14 V DC supply.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDC Servos, 6480 Gear Ratio, and Freedom Find Encoders\u003c\/h3\u003e\n\u003cp\u003eAt the core of the AZ-GTi are DC servo motors that drive both axes through a 6480 gear ratio, delivering a pointing resolution of 2,073,600 counts per revolution, or 0.625 arc-seconds. For precise GoTo slewing and tracking, fully tighten the clutches for all motor-driven use, which gives the best pointing accuracy. Half engage them to point the telescope by hand while stopping it from swinging freely, or fully loosen them to move it quickly.\u003c\/p\u003e\n\u003cp\u003eThe AZ-GTi is also equipped with Sky-Watcher's Freedom Find™ technology. This system uses auxiliary encoders on both axes with a resolution of 1068 counts per revolution, allowing the mount to keep track of its position even if you manually move it. You can loosen the clutches, point your telescope by hand to a new area of the sky, and re-engage them without losing your alignment. The feature can be disabled in the SynScan app or \u003ca href=\"\/en-int\/collections\/hand-controllers-and-drives\"\u003ehand controller\u003c\/a\u003e; do so for the best pointing accuracy if you will not move the mount by hand after alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e5 kg Payload and Vixen-Style Saddle\u003c\/h3\u003e\n\u003cp\u003eThe 5 kg (11 lb) payload suits compact telescopes and cameras with a Vixen-style (V) \u003ca href=\"\/en-int\/collections\/dovetail-plates\"\u003edovetail\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eTo mount your telescope, loosen the altitude clutch, rotate the \u003ca href=\"\/en-int\/collections\/saddles-and-clamps\"\u003esaddle\u003c\/a\u003e until the dovetail groove is horizontal, and tighten the clutch again. After loosening the saddle's locking knob, you slide your telescope's dovetail bar into the groove and secure it. Before letting go, check the balance by loosening the altitude clutch while holding the tube, sliding the dovetail bar forward or backward until the telescope remains level on its own.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe SynScan Pro App and its 42,900+ Object Database\u003c\/h3\u003e\n\u003cp\u003eThe AZ-GTi creates its own Wi-Fi network (with an SSID of SynScan_xxxx), allowing you to connect your smartphone or tablet directly to the mount without needing an internet connection. Once powered on, you have 15 minutes to connect a device before the mount's Wi-Fi automatically turns off to conserve power. The connection uses UDP on port 11880 to the mount's IP address of 192.168.4.1.\u003c\/p\u003e\n\u003cp\u003eThe free SynScan Pro app for iOS and Android runs the star alignment and GoTo control, with a database of over 42,900 objects (skywatcher.com). An optional \u003ca href=\"\/en-int\/products\/sky-watcher-v5-synscan-handbox-controller\"\u003eSynScan hand controller\u003c\/a\u003e can also be plugged into the dedicated hand control port for wired operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eTime-Lapse and DSLR Control: The SynScan PTZ App and SNAP Port\u003c\/h3\u003e\n\u003cp\u003eFor time-lapse video, Sky-Watcher's separate SynScan PTZ app controls the mount instead of SynScan Pro.\u003c\/p\u003e\n\u003cp\u003eThe mount also has a SNAP port for camera shutter control. With an appropriate, separately sold shutter release cable for your Canon, Nikon, Sony, or Olympus camera, the mount can trigger your DSLR's shutter. skywatcher.com describes a 60-second preset exposure setting: once the camera is plugged into the mount and a shot is fired, it keeps taking 60-second exposures until the cable is removed, with no separate intervalometer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eWeights and Power\u003c\/h3\u003e\n\u003cp\u003eThe mount head weighs 1.3 kg (2.9 lb), while the included aluminum tripod and pier extension add 1.9 kg and 0.5 kg respectively, bringing the total assembled weight to about 4 kg (8.6 lb).\u003c\/p\u003e\n\u003cp\u003eThe mount can be powered in two ways. An internal battery compartment holds 8 AA batteries (not included) , or you can connect an external \u003ca href=\"\/en-int\/collections\/power-accessories\"\u003epower supply\u003c\/a\u003e providing DC 7.5 to 14 V at a minimum of 0.75 A through a 2.0mm ID \/ 5.5mm OD center-positive barrel plug.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eVixen Saddle, Tripod, and Pier Extension\u003c\/h3\u003e\n\u003cp\u003eThe AZ-GTi system includes an adjustable-height aluminum tripod with 1.25-inch legs and an accessory tray. The tray keeps the legs firmly expanded so the tripod cannot tip over, and should always be used. The mount head attaches to the tripod via a standard 3\/8\"-16 thread, and a 1\/4\"-20 adapter is included, so the head also fits photo tripods with either thread.\u003c\/p\u003e\n\u003cp\u003eThe 0.5 kg pier extension fits between the tripod and the mount head. The manual says a short tube that does not hit the tripod legs when pointed high up can go on the tripod directly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eStep-by-Step Field Setup and Alignment\u003c\/h3\u003e\n\u003cp\u003eFirst, extend the tripod legs on level ground and install the accessory tray. Attach the pier extension if needed for your telescope, then screw the mount head onto the tripod's 3\/8\"-16 bolt, tightening it moderately.\u003c\/p\u003e\n\u003cp\u003eOnce the mount is assembled, install your telescope and balance it on the altitude axis. Power on the mount and connect your phone or tablet to the \"SynScan_xxxx\" Wi-Fi network. Open the SynScan Pro app, which will guide you through the star alignment. After centering one or more bright stars in your \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepiece\u003c\/a\u003e as prompted by the app, the mount is aligned and ready for GoTo and tracking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much can the Sky-Watcher AZ-GTi mount carry?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Sky-Watcher AZ-GTi carries 5 kg (11 lb), on a Vixen-style (V) dovetail saddle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I power the AZ-GTi mount in the field?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou have two options for powering the AZ-GTi mount. You can use the internal battery compartment, which holds 8 AA batteries (not included), or connect an external power source that supplies DC 7.5 to 14 V at 0.75 A.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the AZ-GTi an equatorial mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. Sky-Watcher's material describes the AZ-GTi as an alt-azimuth mount. For photography it lists the SynScan PTZ app for time-lapse and a 60-second preset shutter function through the SNAP port.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need an internet connection to use the AZ-GTi's Wi-Fi control?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The mount itself acts as a Wi-Fi hotspot, broadcasting its own network (with an SSID like SynScan_xxxx). You connect your smartphone or tablet directly to the mount's network to control it. You must establish this connection within 15 minutes of powering on the mount, or its Wi-Fi will automatically shut down.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I attach the AZ-GTi mount head to my own camera tripod?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The base of the AZ-GTi mount head has a standard 3\/8\"-16 threaded socket and includes an adapter for the smaller 1\/4\"-20 thread. The manual advises tightening the bolt moderately, as over-tightening can damage the mount's internal parts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Freedom Find™ feature on the AZ-GTi work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe AZ-GTi has auxiliary encoders on both axes that keep track of the mount's position. This allows you to loosen the clutches, move the telescope by hand to a new target, and re-lock the clutches without losing your star alignment. For the best pointing accuracy, the manual recommends disabling this feature if you don't plan on moving the mount by hand.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow many objects are in the Sky-Watcher AZ-GTi's database?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen controlled by the SynScan Pro app, the AZ-GTi gives you access to a database containing over 42,900 objects, including stars, planets, nebulae, galaxies, and star clusters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the AZ-GTi trigger my camera's shutter for photos?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The mount has a SNAP port for connecting a shutter release cable (sold separately) to your DSLR. The mount includes a 60-second preset exposure function that will continuously trigger 60-second shots until the cable is unplugged.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I properly balance a telescope on the AZ-GTi?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFirst, securely lock your telescope's Vixen-style dovetail bar in the mount's saddle. Then, while firmly holding the telescope tube, fully loosen the altitude clutch wheel. Slide the dovetail bar forward or backward within the saddle until the telescope remains horizontal without support. Once it's balanced, tighten the altitude clutch.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the pier extension for, and when should I use it with the AZ-GTi?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe included pier extension raises the mount head higher above the tripod. You should use it if you have a longer telescope tube that might hit the tripod legs when you point it high in the sky, towards the zenith. A short tube that does not hit the legs can go on the tripod directly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the AZ-GTi make time-lapse videos with my camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Connect to the mount over Wi-Fi and use Sky-Watcher's SynScan PTZ app, which skywatcher.com names for video time-lapse.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Type\u003c\/td\u003e\n\u003ctd\u003eAlt-azimuth GoTo mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePayload\u003c\/td\u003e\n\u003ctd\u003e5 kg (11 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Head Weight\u003c\/td\u003e\n\u003ctd\u003e1.3 kg (2.9 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTripod and Extension Pier Weight\u003c\/td\u003e\n\u003ctd\u003e1.9 kg + 0.5 kg (4.2 lb + 1.1 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFully Assembled Weight\u003c\/td\u003e\n\u003ctd\u003eAbout 4 kg (8.6 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTripod\u003c\/td\u003e\n\u003ctd\u003eAdjustable-height aluminum tripod, 1.25-inch legs, with built-in pier extension and accessory tray\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSaddle\u003c\/td\u003e\n\u003ctd\u003eVixen-style (V) dovetail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTripod Thread\u003c\/td\u003e\n\u003ctd\u003e3\/8\"-16, with adapter for 1\/4\"-20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotors\u003c\/td\u003e\n\u003ctd\u003eDC servo motors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGear Ratio\u003c\/td\u003e\n\u003ctd\u003e6480\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e2,073,600 counts per revolution (0.625 arc-second)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuxiliary Encoders\u003c\/td\u003e\n\u003ctd\u003e1068 counts per revolution (about 20 arc-minutes), Freedom Find\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl\u003c\/td\u003e\n\u003ctd\u003eBuilt-in Wi-Fi with the SynScan Pro app (iOS, Android) or SynScan PTZ app for time-lapse; optional SynScan hand controller\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDatabase\u003c\/td\u003e\n\u003ctd\u003e42,900+ objects (skywatcher.com)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWi-Fi\u003c\/td\u003e\n\u003ctd\u003eAccess point SSID SynScan_xxxx, IP 192.168.4.1, UDP port 11880\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Ports\u003c\/td\u003e\n\u003ctd\u003eHand control, power, SNAP camera shutter port, on\/off switch, status LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirement\u003c\/td\u003e\n\u003ctd\u003eDC 7.5 to 14 V, 0.75 A, or 8 AA batteries (not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eAZ-GTi Mount Head\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eAdjustable Aluminum Tripod with Accessory Tray\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePier Extension\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_AZ-GTi_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher AZ-GTi Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/apps\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload SynScan Pro App\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/firmware-and-software\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/eq-mod.sourceforge.net\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e \n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload EQMOD\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967195476253,"sku":"SW-S21110","price":609.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher-AZ-Gti-Mount-S21110-2__95285.1594170827.1280.1280.jpg?v=1684338737"},{"product_id":"sky-watcher-az5-mount-with-steel-tripod","title":"Sky-Watcher AZ5 Mount with Steel Tripod","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e15 lb Payload Capacity\u003c\/li\u003e\n\u003cli\u003eV-Style Mounting Saddle\u003c\/li\u003e\n\u003cli\u003e1.75-inch Steel Tripod Legs\u003c\/li\u003e\n\u003cli\u003eTotal Assembled Weight of 17.3 lbs\u003c\/li\u003e\n\u003cli\u003eIncluded Pier Extension\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSky-Watcher AZ5 Mount with Steel Tripod\u003c\/h2\u003e\n\u003cp\u003eThe Sky-Watcher AZ5 Mount with Steel Tripod provides a robust grab-and-go platform for visual astronomy, supporting up to 15 lbs of equipment on a stable base with 1.75-inch diameter steel legs. The cast aluminum mount head weighs just 5 lbs, bringing the total assembled weight to an easily transportable 17.3 lbs. Simple slip clutches allow for smooth, intuitive pointing, making it an ideal choice for quick setup and frustration-free observing sessions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e15 lb Capacity on a 5 lb Head\u003c\/h3\u003e\n\u003cp\u003eThe core of the AZ5 system is its impressive strength-to-weight ratio. The cast aluminum head supports a 15 lb payload, sufficient for a wide range of \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractors\u003c\/a\u003e, \u003ca href=\"\/en-int\/collections\/maksutov-cassegrain-telescopes\"\u003eMaksutov-Cassegrains\u003c\/a\u003e, and compact \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonians\u003c\/a\u003e. This capacity ensures your view remains steady, even at high magnification on planetary targets, without the bulk of a heavier \u003ca href=\"\/en-int\/collections\/equatorial-mounts\"\u003eequatorial mount\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eVibration Suppression from 1.75\" Steel Legs\u003c\/h3\u003e\n\u003cp\u003eUnlike lighter-duty mounts that use aluminum or smaller-diameter legs, the AZ5 is founded on a tripod with 1.75-inch rolled steel legs. This construction is critical for damping vibrations quickly—a key factor for enjoyable viewing. Whether you're observing on a windy night or focusing your telescope, the solid tripod minimizes image shake, providing a more stable experience than typical photo tripods or entry-level mounts.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid Foundation:\u003c\/strong\u003e The 12.3 lb tripod provides a low center of gravity for the entire 17.3 lb assembly, enhancing stability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccessory Tray:\u003c\/strong\u003e The included tray adds rigidity to the tripod legs while keeping your \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepieces\u003c\/a\u003e organized and within reach.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePier Extension:\u003c\/strong\u003e A standard pier extension is included, raising the mount head to provide better clearance for longer optical tubes when observing near the zenith.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIntuitive Control with Slip Clutches \u0026amp; V-Style Saddle\u003c\/h3\u003e\n\u003cp\u003eThe AZ5 is built for simplicity. Adjustable-tension clutches on both axes let you aim by simply pushing the tube toward your target, and geared slow-motion controls then provide precise manual tracking to keep objects centered at high magnification. An adjustable altitude fork arm and the industry-standard V-style \u003ca href=\"\/en-int\/collections\/saddles-and-clamps\"\u003edovetail saddle\u003c\/a\u003e ensure compatibility with a vast range of optical tubes without the need for proprietary adapters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the largest telescope I can use on the Sky-Watcher AZ5 mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Sky-Watcher AZ5 has a payload capacity of 15 lbs. For visual use, this comfortably supports telescopes like a 102mm refractor, a 127mm Maksutov-Cassegrain, or a 6-inch Newtonian. For the best stability, it's recommended to keep the \u003ca href=\"\/en-int\/collections\/optical-tubes\"\u003eoptical tube assembly\u003c\/a\u003e weight around 10-12 lbs, leaving capacity for \u003ca href=\"\/en-int\/collections\/diagonals\"\u003ediagonals\u003c\/a\u003e, eyepieces, and finders.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the AZ5 mount suitable for astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the Sky-Watcher AZ5 is an \u003ca href=\"\/en-int\/collections\/alt-azimuth-mounts\"\u003ealt-azimuth mount\u003c\/a\u003e designed specifically for visual astronomy and terrestrial viewing. It does not track the rotation of the Earth, which is necessary for long-exposure astrophotography. While you could take very short snapshots of the Moon or planets, it is not intended for imaging deep-sky objects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Sky-Watcher AZ5 compare to a standard heavy-duty camera tripod?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile both can hold equipment, the AZ5 is purpose-built for astronomy. Its 1.75\" steel legs are significantly more effective at damping vibrations than typical camera tripod legs. Furthermore, the alt-azimuth head provides smoother, more natural motions for tracking celestial objects compared to the pan-tilt heads on most photo tripods.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the AZ5 perform for observing Jupiter with a 127mm Maksutov?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe AZ5 is an excellent match for a 127mm Maksutov-Cassegrain. The total weight of that telescope is well within the 15 lb capacity. The stability of the 1.75\" steel tripod legs means vibrations will settle quickly after focusing, allowing you to resolve fine details like Jupiter's cloud bands and the Great Red Spot at high magnification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Sky-Watcher AZ5 come with slow-motion controls?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The AZ5 has geared slow-motion controls for precise manual tracking, plus adjustable-tension clutches on both axes. You can push the telescope to your target, then use the slow-motion controls to follow it smoothly, even at high magnification on planetary targets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the included pier extension with the AZ5 mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe pier extension raises the height of the mount head relative to the tripod. This is particularly useful when using longer telescopes, such as refractors, as it prevents the bottom of the telescope from hitting the tripod legs when you are pointing at objects high overhead, near the zenith.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Type\u003c\/td\u003e\n\u003ctd\u003eAlt-AZ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePayload Capacity\u003c\/td\u003e\n\u003ctd\u003e15 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Saddle\u003c\/td\u003e\n\u003ctd\u003eV-Style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClutch Type\u003c\/td\u003e\n\u003ctd\u003eSlip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlow-Motion Controls\u003c\/td\u003e\n\u003ctd\u003eGeared\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAltitude Fork Arm\u003c\/td\u003e\n\u003ctd\u003eAdjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Head Weight\u003c\/td\u003e\n\u003ctd\u003e5 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTripod Leg Diameter\u003c\/td\u003e\n\u003ctd\u003e1.75\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTripod Weight\u003c\/td\u003e\n\u003ctd\u003e12.3 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFully Assembled Weight\u003c\/td\u003e\n\u003ctd\u003e17.3 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePier Extension Included\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePier Extension Thread\u003c\/td\u003e\n\u003ctd\u003e3\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTripod Accessory Tray\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePolar Scope\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCase\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e050234205108\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGoTo\u003c\/td\u003e\n\u003ctd\u003eNo (manual slow-motion controls)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eAZ5 Mount Head\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSteel Tripod\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePier Extension\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTripod Accessory Tray\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967195541789,"sku":"SW-S20110","price":539.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher-AZ5-Mount-Steel-Tripod-S20110-1__97269.1594170829.1280.1280.jpg?v=1684338749"},{"product_id":"sky-watcher-eq6-r-pro","title":"Sky-Watcher EQ6-R Pro","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e20 kg (44 lb) Astrophotography Payload Capacity\u003c\/li\u003e\n\u003cli\u003eBelt-driven Stepper Motor System with 0.14 Arc-Second Resolution\u003c\/li\u003e\n\u003cli\u003eSynScan GoTo Controller with 42,000+ Object Database\u003c\/li\u003e\n\u003cli\u003eDual-fit 45mm (Vixen) and 75mm (Losmandy) Saddle\u003c\/li\u003e\n\u003cli\u003eBuilt-in Illuminated Polar Scope\u003c\/li\u003e\n\u003cli\u003e100-Segment Permanent Periodic Error Correction (PPEC)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSky-Watcher EQ6-R Pro\u003c\/h2\u003e\n\u003cp\u003eThe Sky-Watcher EQ6-R Pro is a German equatorial GoTo mount built for astrophotography, supporting a 20 kg (44 lb) payload with pointing accuracy up to 5 arc-minutes (RMS). Its 17.3 kg (38.1 lb) head combines a 180:1 worm drive with a 48:12 timing belt transmission, driven by 1.8° hybrid stepper motors for a resolution of about 0.14 arc-seconds. The drive system slews at up to 4.2° per second and tracks at sidereal, solar, and lunar rates. Included with the mount is a \u003ca href=\"\/en-int\/products\/sky-watcher-v5-synscan-handbox-controller\"\u003eSynScan hand controller\u003c\/a\u003e with a database of over 42,000 objects and a heavy-duty tripod with 2-inch stainless steel legs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 720:1 Gear Ratio from a 48:12 Belt and 180:1 Worm Drive\u003c\/h3\u003e\n\u003cp\u003eIt uses a 48:12 timing belt to connect the 1.8° hybrid stepper motors to the 180:1 worm drives. Stepper motors are quieter than servo motors.\u003c\/p\u003e\n\u003cp\u003eWith a total gear ratio of 720 and 64 microsteps driving the motors, the mount achieves a resolution of 9,216,000 counts per revolution, or approximately 0.14 arc-seconds per step.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTransmission:\u003c\/strong\u003e A 48:12 timing belt drive connects the stepper motors to the 180:1 worm drives on each axis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotors:\u003c\/strong\u003e 1.8° hybrid stepper motors with 64 microstep control drive both axes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResolution:\u003c\/strong\u003e The system delivers a resolution of about 0.14 arc-seconds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlew Speeds:\u003c\/strong\u003e The mount can slew at up to 4.2° per second.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 20 kg Payload on a Dual-Fit 45mm\/75mm Saddle\u003c\/h3\u003e\n\u003cp\u003eThe EQ6-R Pro is rated to carry a 20 kg (44 lb) instrument payload for astrophotography, not including the \u003ca href=\"\/en-int\/products\/sky-watcher-eq6-r-counterweights\"\u003ecounterweights\u003c\/a\u003e. Add up the tube, camera, \u003ca href=\"\/en-int\/collections\/autoguiding\"\u003eguide scope\u003c\/a\u003e and accessories and compare the total with the rating.\u003c\/p\u003e\n\u003cp\u003eTo balance the load, the mount includes two 5 kg (11 lb) counterweights. The 18 mm diameter counterweight rod is retractable for easier transport, and an extension is included. The dual-fit \u003ca href=\"\/en-int\/collections\/saddles-and-clamps\"\u003esaddle\u003c\/a\u003e accepts both 45 mm Vixen-style and 75 mm Losmandy-style \u003ca href=\"\/en-int\/collections\/dovetail-plates\"\u003edovetail plates\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePolar Alignment from 5° to 65° Latitude\u003c\/h3\u003e\n\u003cp\u003eThe mount's latitude adjusts from 5° to 65° with the elevation adjustment bolts, and azimuth with the azimuth adjustment knobs.\u003c\/p\u003e\n\u003cp\u003eThe built-in polar scope lights up when the mount is powered. The reticle includes a pattern for the Northern Hemisphere that shows the position of Polaris relative to the North Celestial Pole, consistent with the output of popular polar alignment apps. For observers in the Southern Hemisphere, a constellation pattern for Octans is etched into the reticle.\u003c\/p\u003e\n\u003cp\u003eThe SynScan hand controller also has a polar alignment routine that needs no polar scope. After performing a 2- or 3-star alignment, the controller can calculate the mount's alignment error and guide you through making the necessary altitude and azimuth adjustments using a reference star.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSynScan GoTo Control with a 42,000+ Object Database\u003c\/h3\u003e\n\u003cp\u003eThe included SynScan hand controller is the primary command interface for the EQ6-R Pro. Its internal database contains over 42,000 celestial objects, enabling automated pointing and tracking across the night sky.\u003c\/p\u003e\n\u003cp\u003eThe SynScan system provides multiple alignment options to suit your needs. For \u003ca href=\"\/en-int\/collections\/equatorial-mounts\"\u003eequatorial mounts\u003c\/a\u003e it offers 1-star, 2-star and 3-star alignment; the manual explains when each suits, and how cone error affects pointing. The controller's object catalogs include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeep Sky Objects:\u003c\/strong\u003e Messier, NGC, IC and Caldwell catalogs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStars:\u003c\/strong\u003e SAO catalog, named stars, double stars, and variable stars.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolar System:\u003c\/strong\u003e Planets and the Moon.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePC Control via USB and App Control via Optional Wi-Fi\u003c\/h3\u003e\n\u003cp\u003eA built-in USB port on the mount's control panel provides a direct USB-to-serial connection for controlling the mount from a computer.\u003c\/p\u003e\n\u003cp\u003eFor wireless control, the optional \u003ca href=\"\/en-int\/products\/sky-watcher-synscan-wifi-adapter\"\u003eSynScan Wi-Fi dongle\u003c\/a\u003e can be plugged into the RJ-45 hand control port. This allows the mount to be controlled from a smartphone, tablet, or computer running the SynScan Pro app, which is available for iOS, Android, PC, and Mac.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e100-Segment PPEC, Autoguiding, and Camera Control\u003c\/h3\u003e\n\u003cp\u003eThe mount's R.A. worm is indexed, allowing the motor controller to track its position. This enables the 100-segment Permanent Periodic Error Correction (PPEC) function. After running a PEC training routine, either by manual guiding or with an autoguider, the correction data is stored permanently in the motor controller. This allows you to enable PEC in subsequent sessions to improve tracking performance without needing to retrain, provided the polar alignment is accurate.\u003c\/p\u003e\n\u003cp\u003eAn RJ-12 autoguide port takes an autoguider with an ST-4 type interface. You can configure the autoguiding correction speed in the SynScan controller, with options ranging from 0.125x to 1x the sidereal rate. The mount also includes a SNAP port, which is a stereo outlet that can trigger a DSLR camera's shutter for automated imaging sequences using the hand controller's \"Camera Control\" function. A shutter release cable for Canon EOS cameras is included; cables for other cameras are optional.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe 17.3 kg Head, 7.5 kg Tripod, and 11V to 16V Power System\u003c\/h3\u003e\n\u003cp\u003eThe mount head weighs 17.3 kg (38.1 lb). It sits on a tripod with 2-inch diameter stainless steel legs, which itself weighs 7.5 kg (16.5 lb). The accessory tray slides up the primary locking shaft until its three tips push against the legs.\u003c\/p\u003e\n\u003cp\u003eThe mount requires a \u003ca href=\"\/en-int\/products\/rb-focus-sky-watcher-eq6-r-power-cable-with-14-5v-step-up\"\u003eDC power supply\u003c\/a\u003e providing between 11V and 16V. The current draw varies with voltage, requiring 4A at 11V or 2.5A at 16V. The power plug is secured with a knurled cap. Sky-Watcher cautions against using an unregulated AC-to-DC adapter, . A status LED provides feedback on power voltage levels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFirst Night Assembly and Balancing\u003c\/h3\u003e\n\u003cp\u003eAfter extending the 2-inch steel tripod legs and leveling the tripod top, the 17.3 kg mount head is placed onto the tripod and secured with a primary locking shaft from below. The accessory tray then slides up the locking shaft against the legs.\u003c\/p\u003e\n\u003cp\u003eFirst, with the clutches locked, the retractable 18 mm counterweight rod is extended and the two 5 kg counterweights are installed. The R.A. axis is balanced by loosening the R.A. clutch and sliding the counterweights along the shaft until the mount remains stationary with the shaft horizontal. The Dec. axis is then balanced by loosening the Dec. clutch and sliding the telescope forward or backward in its saddle until it stays put.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the imaging payload of the Sky-Watcher EQ6-R Pro?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Sky-Watcher EQ6-R Pro has an official payload capacity of 20 kg (44 lb) for astrophotography. This weight limit refers to the telescope and all imaging equipment, excluding the counterweights.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat drive system does the EQ6-R Pro use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe EQ6-R Pro uses a hybrid system that combines a 48:12 timing belt drive with a 180:1 worm drive. This is driven by 1.8° hybrid stepper motors with 64 microsteps. Stepper motors are quieter than servo motors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I control the Sky-Watcher EQ6-R Pro with a computer or smartphone?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The mount has a built-in USB port that provides a USB-to-serial connection for direct control from a computer. For wireless control from a smartphone, tablet, or computer, you can add the optional SynScan Wi-Fi dongle to the hand control port and use the SynScan Pro app (available for iOS, Android, PC, and Mac).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I polar align the EQ6-R Pro if I can't see Polaris?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SynScan hand controller includes a software-assisted polar alignment routine. After you perform a 2- or 3-star alignment, the controller calculates the polar alignment error. You can then select \"Polar Alignment\" from the menu, choose a bright reference star, and the controller will guide you through the necessary altitude and azimuth adjustments to correct the error without a polar scope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Permanent Periodic Error Correction (PPEC) on the EQ6-R Pro work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe R.A. worm has an index, allowing the motor controller to know its exact rotational position. You perform a PEC training routine (either by manually guiding or using an autoguider) to record the worm gear's periodic error. This 100-segment correction is then stored permanently in the motor controller. In future sessions, you can simply enable PEC tracking without retraining, assuming your polar alignment is accurate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Sky-Watcher EQ6-R Pro work at a latitude of 10° North?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The mount's specified latitude adjustment range is 5° to 65°. A location at 10° North is well within this range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of power supply does the Sky-Watcher EQ6-R Pro require?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe EQ6-R Pro requires a DC power supply between 11V and 16V. The current requirement depends on the voltage: 4 amps are needed at 11V, while 2.5 amps are sufficient at 16V. Sky-Watcher cautions against using unregulated AC-to-DC adapters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat dovetail plates does the EQ6-R Pro saddle accept?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe mount features a dual-fit saddle that is compatible with both narrow 45 mm Vixen-style dovetails and wider 75 mm Losmandy-style dovetails.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the EQ6-R Pro trigger my camera for an automated imaging sequence?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The mount has a dedicated SNAP port for camera shutter control. Using the \"Camera Control\" function in the SynScan hand controller, you can program up to 8 groups of exposure times and frame counts. The mount will then automatically trigger your camera according to the sequence. A shutter release cable for Canon EOS cameras is included, and cables for other cameras are optional.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the EQ6-R Pro have a polar scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The polar scope is built in and lights up when the mount is powered. Its reticle has a circle for Polaris in the Northern Hemisphere and the Octans pattern for the Southern Hemisphere.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e050234303002\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Type\u003c\/td\u003e\n\u003ctd\u003eGerman equatorial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePayload\u003c\/td\u003e\n\u003ctd\u003e20 kg (44 lb), counterweights excluded, for astrophotography\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Head Weight\u003c\/td\u003e\n\u003ctd\u003e17.3 kg (38.1 lb), tripod excluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTripod\u003c\/td\u003e\n\u003ctd\u003e2-inch stainless steel legs, 7.5 kg (16.5 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCounterweights\u003c\/td\u003e\n\u003ctd\u003e2 x 5 kg (11 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCounterweight Rod\u003c\/td\u003e\n\u003ctd\u003e18 mm diameter, retractable, with extension\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSaddle\u003c\/td\u003e\n\u003ctd\u003eDual-fit, 45 mm (Vixen-style) and 75 mm (Losmandy-style) dovetail grooves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLatitude Adjustment Range\u003c\/td\u003e\n\u003ctd\u003e5° to 65°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAzimuth Adjustment Range\u003c\/td\u003e\n\u003ctd\u003eAbout ±9°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotors\u003c\/td\u003e\n\u003ctd\u003e1.8° hybrid stepper motors, 64 microsteps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransmission\u003c\/td\u003e\n\u003ctd\u003e180:1 worm drive plus 48:12 timing belt drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGear Ratio\u003c\/td\u003e\n\u003ctd\u003e720\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e9,216,000 counts per revolution (about 0.14 arc-second)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Slewing Speed\u003c\/td\u003e\n\u003ctd\u003e4.2° per second\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTracking Rates\u003c\/td\u003e\n\u003ctd\u003eSidereal, solar, lunar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuto-Guiding Speeds\u003c\/td\u003e\n\u003ctd\u003e0.125x, 0.25x, 0.5x, 0.75x, 1x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePEC\u003c\/td\u003e\n\u003ctd\u003e100-segment permanent PEC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl\u003c\/td\u003e\n\u003ctd\u003eSynScan hand controller (included), SynScan Pro app on iOS\/Android, PC\/Mac; SynScan Wi-Fi dongle (optional) on the hand control port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDatabase\u003c\/td\u003e\n\u003ctd\u003e42,000+ objects (Messier, NGC, IC, SAO, Caldwell, double stars, variable stars, named stars, planets)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePointing Accuracy\u003c\/td\u003e\n\u003ctd\u003eUp to 5 arc-minutes (RMS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePolar Scope\u003c\/td\u003e\n\u003ctd\u003eBuilt-in, illuminated when the mount is powered\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Ports\u003c\/td\u003e\n\u003ctd\u003ePower (locking plug), power switch, USB (USB-to-serial), hand control (RJ-45), autoguide (RJ-12, ST-4), SNAP camera shutter port, status LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirement\u003c\/td\u003e\n\u003ctd\u003eDC 11 to 16 V; 4 A at 11 V, 2.5 A at 16 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eEQ6-R Pro Mount Head\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTripod with 2-inch Steel Legs\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eAccessory Tray\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSynScan Hand Controller\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e5 kg (11 lb) Counterweight\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eRetractable Counterweight Rod\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCounterweight Rod Extension\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDC Power Cable\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eHand Controller Holder\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSNAP Shutter Release Cable (Canon EOS)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_EQ6-R_Mount_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher EQ6-R Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/firmware-and-software\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Sky-Watcher Software\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/www.skywatcherusa.com\/pages\/apps\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload SynScan Pro App\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/eq-mod.sourceforge.net\" target=\"_blank\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 640 512\" class=\"DAV-img-box\"\u003e\u003cpath fill=\"#0047a7\" d=\"M128 32C92.7 32 64 60.7 64 96l0 256 64 0 0-256 384 0 0 256 64 0 0-256c0-35.3-28.7-64-64-64L128 32zM19.2 384C8.6 384 0 392.6 0 403.2C0 445.6 34.4 480 76.8 480l486.4 0c42.4 0 76.8-34.4 76.8-76.8c0-10.6-8.6-19.2-19.2-19.2L19.2 384z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload EQMOD\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher_SynScan_V5_Hand_Control_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload SynScan V5 Hand Controller Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967195574557,"sku":"SW-S30300","price":2659.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher-EQ6-R-Pro-S30300-1__08141.1647732881.1280.1280.jpg?v=1684338763"},{"product_id":"sky-watcher-heq5-mount","title":"Sky-Watcher HEQ5 Mount","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eGerman equatorial GoTo mount\u003c\/li\u003e\n\u003cli\u003e13.7 kg (30 lb) instrument payload capacity\u003c\/li\u003e\n\u003cli\u003eSynScan hand controller with a 42,900+ object database\u003c\/li\u003e\n\u003cli\u003e1.8° stepper motors provide 0.144 arc-second motor resolution\u003c\/li\u003e\n\u003cli\u003eAutoguider port and included polar scope for astrophotography\u003c\/li\u003e\n\u003cli\u003e1.75-inch steel tripod with large accessory tray\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSky-Watcher HEQ5 Mount\u003c\/h2\u003e\n\u003cp\u003eThe Sky-Watcher HEQ5 Pro is a German equatorial GoTo mount with a 13.7 kg (30 lb) payload; it is a smaller version of the EQ6 Pro. Its drive system uses 1.8° stepper motors and a 705 gear ratio to achieve a motor resolution of 0.144 arc-seconds, with positioning accuracy of up to 1 arc-minute. The included \u003ca href=\"\/en-int\/products\/sky-watcher-v5-synscan-handbox-controller\"\u003eSynScan hand controller\u003c\/a\u003e features a database of over 42,900 objects and can slew the mount at up to 3.4° per second.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe HEQ5 Pro: A 13.7 kg GoTo Platform for Imaging\u003c\/h3\u003e\n\u003cp\u003eIt is designed for observers who need the steadiness of the EQ6 Pro but find the EQ6 Pro too physically demanding. It carries 13.7 kg (30 lb), and SynScan mounts provide extremely high precision tracking.\u003c\/p\u003e\n\u003cp\u003eSynScan mounts are designed for novices and experts alike, and even an inexperienced astronomer can master the features in a few observing sessions. Periodic Error Correction, an \u003ca href=\"\/en-int\/collections\/autoguiding\"\u003eautoguider\u003c\/a\u003e port and a computer connection serve imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e0.144 Arc-Second Resolution from 1.8° Stepper Motors\u003c\/h3\u003e\n\u003cp\u003eAt the heart of the HEQ5 Pro's tracking capability are its 1.8° stepper motors, which are driven with 64 microsteps. This fine level of control, combined with a 705 gear ratio, gives a motor resolution of 0.144 arc-seconds.\u003c\/p\u003e\n\u003cp\u003eVibration is minimal for steady long-exposure photography. The system's positioning accuracy is rated at up to 1 arc-minute, enhanced by software compensation of collimation error (mount mechanical error).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 13.7 kg Capacity with 10.2 kg of Counterweights\u003c\/h3\u003e\n\u003cp\u003eThe HEQ5 Pro is rated for a 13.7 kg (30 lb) instrument payload. This capacity is balanced by two included 5.1 kg (11.2 lb) counterweights, 10.2 kg in all.\u003c\/p\u003e\n\u003cp\u003eThe counterweights mount on a solid stainless steel counterweight shaft that is 21.5 cm long and 1.8 cm in diameter. The mount head itself, standing 35 cm tall, weighs 10 kg (22 lb) without the counterweights.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePrecision Setup with the Included Polar Scope\u003c\/h3\u003e\n\u003cp\u003eA \u003ca href=\"\/en-int\/collections\/polar-scopes\"\u003epolar scope\u003c\/a\u003e is included. After initial setup, the SynScan hand controller provides the precise position of Polaris on the polar scope's reticle, displayed as a clock-face position (e.g., \"HH:MM\") and as an hour angle.\u003c\/p\u003e\n\u003cp\u003eThe hand controller also has a polar alignment routine that needs no polar scope. After a 2-star or 3-star alignment, the system calculates and displays the mount's polar alignment error in both altitude and azimuth. You can then use the mount's adjustment bolts to correct the error.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe SynScan Controller with 42,900+ Objects\u003c\/h3\u003e\n\u003cp\u003eThe included SynScan hand controller finds and tracks objects automatically. Its database contains over 42,900 entries, including the complete Messier, NGC, and IC catalogs, as well as planets, named stars, double stars, and more. Once aligned, you can command the mount to slew to any object in the database at speeds up to 3.4° per second (800x).\u003c\/p\u003e\n\u003cp\u003eFor \u003ca href=\"\/en-int\/collections\/equatorial-mounts\"\u003eequatorial mounts\u003c\/a\u003e, you can choose from a 1-Star, 2-Star, or 3-Star alignment. The manual explains cone error, which occurs when the telescope's optical axis is not perfectly perpendicular to the mount's declination axis.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eRS-232 Connectivity for Planetarium Control\u003c\/h3\u003e\n\u003cp\u003eThe SynScan hand controller features an RS-232 port for connecting to a computer. Many commercially available planetarium programs can then control the mount.\u003c\/p\u003e\n\u003cp\u003eThe hand controller also features a \"PC Direct Mode,\" which allows applications to communicate directly with the mount's motor controller, primarily used for firmware updates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAutoguiding at 4 Speeds and Periodic Error Correction\u003c\/h3\u003e\n\u003cp\u003eA built-in autoguider port takes guiding corrections. The SynScan controller lets you set the guide speed to 0.25x, 0.5x, 0.75x, or 1x the sidereal rate.\u003c\/p\u003e\n\u003cp\u003eThe mount also supports Periodic Error Correction (PEC). This function allows you to train the mount to recognize and compensate for the small, repeatable errors inherent in its worm gear drive. By recording these errors during a training session, the mount can play back the corrections during tracking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 1.75-inch Steel Tripod with an 8-inch Dovetail Bar\u003c\/h3\u003e\n\u003cp\u003eThe tripod has 1.75-inch diameter stainless steel legs. The tripod height is adjustable from 97 cm to 121 cm. The tripod itself weighs 5.6 kg (12.3 lb).\u003c\/p\u003e\n\u003cp\u003eIt comes with a large wall-to-wall accessory tray and an 8-inch \u003ca href=\"\/en-int\/collections\/dovetail-plates\"\u003edovetail bar\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e11-15V DC, 2A Power Requirements\u003c\/h3\u003e\n\u003cp\u003eThe HEQ5 Pro mount and its SynScan controller are powered by an external DC power source. The system requires a supply that can deliver between 11 and 15 volts DC at 2 amps. The power input jack on the mount is tip-positive.\u003c\/p\u003e\n\u003cp\u003eNo \u003ca href=\"\/en-int\/collections\/power-accessories\"\u003epower supply\u003c\/a\u003e is included. The SynScan hand controller can display the current input voltage, allowing you to monitor your power source during an observing session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eYour First Night with the HEQ5 Pro\u003c\/h3\u003e\n\u003cp\u003eSetting up the HEQ5 Pro begins with leveling the tripod and attaching the 10 kg mount head. Before powering on, the mount should be set to its \"home position\": with the counterweight shaft pointing down and the telescope pointing towards the celestial pole. Once powered on, the SynScan hand controller guides you through an initialization process where you enter your location, date, and time.\u003c\/p\u003e\n\u003cp\u003eAfter initialization, you perform a star alignment. In a 2-star alignment the controller suggests a bright star, you center it in the \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepiece\u003c\/a\u003e, and then repeat for a second star. The mount is then ready to automatically find any of the 42,900+ objects in its database.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 10 kg Head for Enhanced Portability\u003c\/h3\u003e\n\u003cp\u003eThe system comes apart into several manageable components for transport: the 10 kg (22 lb) mount head, the 5.6 kg (12.3 lb) tripod, and the two 5.1 kg (11.2 lb) counterweights. Total weight is 15 kg without counterweights.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSky-Watcher HEQ5 Pro vs. HEQ5-R Pro\u003c\/h3\u003e\n\u003cp\u003eThis is the HEQ5 Pro, with 1.8° stepper motors and a 705 gear ratio.\u003c\/p\u003e\n\u003cp\u003eThe HEQ5-R Pro is an evolutionary progression of the HEQ5 Pro. The HEQ5-R Pro uses a belt drive between motor and worm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the imaging payload of the Sky-Watcher HEQ5 Pro?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThere is one payload figure: 13.7 kg (30 lb). Add up your telescope, camera, guide scope and accessories and compare the total with it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Sky-Watcher HEQ5 mount require a computer for GoTo operation?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, a computer is not necessary. The included SynScan hand controller contains the entire 42,900+ object database and handles all alignment, slewing, and tracking functions independently. You can optionally connect the hand controller to a computer via an RS-232 cable for control from planetarium software.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between the Sky-Watcher HEQ5 Pro and the HEQ5-R Pro?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe HEQ5-R Pro is an evolutionary progression of the HEQ5 Pro. The HEQ5 Pro uses 1.8° stepper motors and a 705 gear ratio. The HEQ5-R Pro uses belts to connect the motors to the worm gears.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat power supply do I need for the Sky-Watcher HEQ5 mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe mount requires a DC power source that can supply 11 to 15 volts at 2 amps. The power connector is tip-positive. No power supply is included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow portable is the Sky-Watcher HEQ5 mount for field use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt breaks down into the 10 kg (22 lb) mount head, the 5.6 kg (12.3 lb) tripod, and two 5.1 kg (11.2 lb) counterweights. Sky-Watcher designed it for observers who find the larger EQ6 Pro too physically demanding to transport and set up.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does Periodic Error Correction (PEC) on the Sky-Watcher HEQ5 improve astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003ePEC allows the mount to learn and compensate for the minor, cyclical imperfections in its gear train. By running a PEC training routine, you record these errors. During imaging, the mount plays back the corrections.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the polar alignment process for the HEQ5 Pro involve?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe HEQ5 Pro includes a polar scope. The SynScan hand controller calculates and displays the position of Polaris on the reticle for your specific time and location. It also has a polar alignment routine that needs no polar scope, using the error measured in a 2-star alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill I need to purchase additional counterweights for the Sky-Watcher HEQ5?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTwo 5.1 kg counterweights (10.2 kg in all) are included.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the HEQ5 Pro compare to the larger EQ6 Pro?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe HEQ5 Pro is a smaller version of the EQ6 Pro. The primary difference is payload capacity and physical weight. The HEQ5 Pro offers a 13.7 kg capacity and a 10 kg head weight, making it significantly more portable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does \"motor resolution of 0.144 arc-second\" mean for the HEQ5 Pro?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eMotor resolution is the smallest rotational step the mount's motors can make. A smaller number means finer control. The HEQ5 Pro's 0.144 arc-second resolution (from 9,024,000 steps per revolution) allows it to make extremely small, smooth movements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer SKU\u003c\/td\u003e\n\u003ctd\u003eS30400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Type\u003c\/td\u003e\n\u003ctd\u003eGerman equatorial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePayload\u003c\/td\u003e\n\u003ctd\u003e13.7 kg (30 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Head Weight\u003c\/td\u003e\n\u003ctd\u003e10 kg (22 lb), without counterweights\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTripod\u003c\/td\u003e\n\u003ctd\u003e1.75-inch steel legs, 5.6 kg (12.3 lb), height 97 to 121 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCounterweights\u003c\/td\u003e\n\u003ctd\u003e2 x 5.1 kg (11.2 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCounterweight Shaft\u003c\/td\u003e\n\u003ctd\u003eStainless steel, 21.5 cm long, 1.8 cm diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Height\u003c\/td\u003e\n\u003ctd\u003e35 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotors\u003c\/td\u003e\n\u003ctd\u003e1.8° stepper motors, 64 microsteps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGear Ratio\u003c\/td\u003e\n\u003ctd\u003e705\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Resolution\u003c\/td\u003e\n\u003ctd\u003e0.144 arc-second (9,024,000 steps per revolution)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSlewing Speed\u003c\/td\u003e\n\u003ctd\u003eUp to 3.4° per second (800x)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGuiding Speeds\u003c\/td\u003e\n\u003ctd\u003e0.25x, 0.5x, 0.75x, 1x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAutoguider Port\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeriodic Error Correction\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePositioning Accuracy\u003c\/td\u003e\n\u003ctd\u003eUp to 1 arc-minute\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGoTo Control\u003c\/td\u003e\n\u003ctd\u003eSynScan hand controller, computer connection via RS-232 cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDatabase\u003c\/td\u003e\n\u003ctd\u003e42,900+ objects, complete Messier, NGC and IC catalogs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePolar Scope\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003eDC 11 to 15 V, 2 A (tip positive)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessory Tray\u003c\/td\u003e\n\u003ctd\u003eLarge wall-to-wall\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Dovetail Bar\u003c\/td\u003e\n\u003ctd\u003e8 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eHEQ5 Pro Mount Head\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1.75-inch Steel Tripod\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eAccessory Tray\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e5.1 kg Counterweight\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSynScan Hand Controller\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967195935005,"sku":"SW-S30400","price":1999.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher-HEQ5-Mount-S30400-1__12460.1594170832.1280.1280.jpg?v=1684338779"},{"product_id":"sky-watcher-solarquest-mount","title":"Sky-Watcher SolarQuest Mount","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAutomatic solar finding and tracking mount for solar telescopes only\u003c\/li\u003e\n\u003cli\u003eSupports a 5 kg (11 lb) payload on a 1.3 kg (2.9 lb) mount head\u003c\/li\u003e\n\u003cli\u003eAutomatic leveling with built-in GPS and solar sensor alignment\u003c\/li\u003e\n\u003cli\u003ePowered by 8 AA batteries for self-contained field use\u003c\/li\u003e\n\u003cli\u003eIncludes tripod, extension pier, and accessory tray\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSky-Watcher SolarQuest Mount\u003c\/h2\u003e\n\u003cp\u003eThe Sky-Watcher SolarQuest mount offers automated solar finding and tracking for telescopes up to 5 kg (11 lb) on a mount head that weighs 1.3 kg (2.9 lb). This system, powered by 8 AA batteries, includes a 1.9 kg (4.2 lb) tripod and a 0.85 kg (1.9 lb) extension pier.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSky-Watcher SolarQuest: An Automatic Solar Tracking Mount\u003c\/h3\u003e\n\u003cp\u003eThe SolarQuest is an automatic solar finding and tracking mount for \u003ca href=\"\/en-int\/collections\/solar-telescopes\"\u003esolar telescopes\u003c\/a\u003e only. It levels itself, finds its position with a built-in GPS and locates the Sun with a solar sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe SolarQuest's 2-Minute Sun Acquisition Process\u003c\/h3\u003e\n\u003cp\u003eOnce powered on in an open area, the mount first levels the attached solar telescope. It then uses its built-in GPS to acquire a signal, a process that takes up to 2 minutes.\u003c\/p\u003e\n\u003cp\u003eWith this data, the SolarQuest calculates the Sun's current altitude, moves the telescope to that angle, and begins slewing clockwise in azimuth. A solar sensor on the mount scans for the Sun, and once located, the mount locks on and begins tracking. The red LED blinks slowly during the search and turns solid once the Sun is acquired, indicating it is ready for observation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSupporting 5 kg (11 lb) Solar-Only Telescopes\u003c\/h3\u003e\n\u003cp\u003eThe SolarQuest mount is engineered to carry a solar telescope payload of up to 5 kg (11 lb). Telescopes attach to a \u003ca href=\"\/en-int\/collections\/saddles-and-clamps\"\u003edovetail saddle\u003c\/a\u003e with a locking knob.\u003c\/p\u003e\n\u003cp\u003eSky-Watcher's warning: the mount is designed to work with solar telescopes only. Do not point other types of optical device at the Sun. Looking directly at the Sun without a certified filter will cause immediate and irreversible damage to the eyes or instrument.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAssembling the SolarQuest with Tripod and Extension Pier\u003c\/h3\u003e\n\u003cp\u003eFirst, expand the legs of the included 1.9 kg tripod and install the accessory tray to ensure stability. The 0.85 kg extension pier then attaches to the tripod head with a locking bolt.\u003c\/p\u003e\n\u003cp\u003eRemove the mounting head from the extension pier by loosening its 3 small locking screws, attach the SolarQuest to the mounting head with the locking knob, then refit the mounting head with the 3 screws. Extend the legs to the height you want and center the bubble level on top of the mount. Slide the solar telescope's \u003ca href=\"\/en-int\/collections\/dovetail-plates\"\u003edovetail bar\u003c\/a\u003e into the saddle and tighten the locking knob; do not let go until it is firmly attached.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUsing the 8-Way Switch for Centering and Slewing\u003c\/h3\u003e\n\u003cp\u003eSlide the 8-way switch alone to move the SolarQuest slowly when centering the Sun in the \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepiece\u003c\/a\u003e. Some lag when switching to the opposite direction is normal.\u003c\/p\u003e\n\u003cp\u003eFor fast slewing, slide the switch to one direction and then press the power button. If the initial auto-pointing is slightly off-center, you can correct it by centering the Sun with the 8-way switch and then double-clicking the power button. This action saves the offset, and the correction will be applied to the next auto-pointing sequence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePower: 8 AA Batteries\u003c\/h3\u003e\n\u003cp\u003eThe SolarQuest runs on 8 AA batteries (not included) in a battery holder inside the battery compartment.\u003c\/p\u003e\n\u003cp\u003eOpen the compartment cover, pull out the holder, check its cable is connected, then insert the batteries by the slot marks. For the safety of your equipment, the manual recommends removing the batteries if the mount will not be used for an extended period.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSolar Safety Protocol: For Use with Solar Telescopes Only\u003c\/h3\u003e\n\u003cp\u003eSky-Watcher's warning: the SolarQuest mount is designed to work with solar telescopes only.\u003c\/p\u003e\n\u003cp\u003eDo not point other types of optical device at the Sun. Looking directly at the Sun without a certified filter will cause immediate and irreversible damage to the eyes or instrument.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 1.9 kg Tripod and Dovetail Mounting System\u003c\/h3\u003e\n\u003cp\u003eThe complete SolarQuest system includes the mount, a tripod and an extension pier. The tripod weighs 1.9 kg (4.2 lb) and has an accessory tray that keeps the legs firmly expanded so the tripod cannot tip over; always use it. The extension pier weighs 0.85 kg (1.9 lb).\u003c\/p\u003e\n\u003cp\u003eThe base of the SolarQuest mount also features a standard 3\/8\" socket for attachment to a heavy-duty camera tripod. When using this method, the manual advises tightening the connection only slightly to avoid damaging internal parts and raising the center column so the telescope cannot hit the legs when pointed at the zenith.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eTracking Limitations: A Dedicated Instrument for the Sun\u003c\/h3\u003e\n\u003cp\u003eThe SolarQuest is an automatic solar finding and tracking mount for solar telescopes only.\u003c\/p\u003e\n\u003cp\u003eThe manual notes that thick or low clouds can reduce pointing accuracy and may cause visible drift while tracking. Additionally, strong reflected light from surfaces like water or glass within the mount's search path can sometimes terminate the auto-pointing routine unexpectedly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eProtecting the SolarQuest's Internal Mechanics\u003c\/h3\u003e\n\u003cp\u003eAll movements must be performed using the mount's internal motors, controlled by the 8-way switch. Forcing the mount to rotate by hand might damage the internal mechanical parts.\u003c\/p\u003e\n\u003cp\u003eFor the safety of your equipment, remove the batteries if the mount will not be used for a long time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eComponent Weights\u003c\/h3\u003e\n\u003cp\u003eThe component weights are:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Head Weight:\u003c\/strong\u003e 1.3 kg (2.9 lb)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTripod Weight:\u003c\/strong\u003e 1.9 kg (4.2 lb)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtension Pier Weight:\u003c\/strong\u003e 0.85 kg (1.9 lb)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Sky-Watcher SolarQuest find the Sun automatically?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAfter you power it on, the SolarQuest first levels the telescope. It then acquires a GPS signal, which can take up to 2 minutes. Using that data, it moves the telescope to the Sun's current altitude and begins slewing clockwise in azimuth until its built-in solar sensor detects the Sun. A red LED blinks during the search and turns solid when the Sun is found.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Sky-Watcher SolarQuest for viewing the Moon or stars at night?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The SolarQuest is an automatic solar finding and tracking mount for solar telescopes only.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat telescopes are compatible with the Sky-Watcher SolarQuest mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe mount is designed for solar telescopes only, as stated in Sky-Watcher's safety warning. It can carry a payload of up to 5 kg (11 lb). The telescope must have a dovetail bar to attach to the mount's saddle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat if the Sun isn't perfectly centered after the SolarQuest finishes its alignment?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eUse the 8-way slide switch on the mount to manually center the Sun in your eyepiece. Once it's centered, double-click the power button. This saves your correction as an offset, which will be automatically applied the next time the mount performs its pointing routine.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow is the Sky-Watcher SolarQuest powered in the field?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SolarQuest runs on 8 AA batteries (not included), which are installed in an internal battery holder. The manual recommends removing the batteries during long-term storage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use my own heavy-duty camera tripod with the SolarQuest mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The base of the SolarQuest mount has a standard 3\/8\" socket for this purpose. The manual advises tightening it only slightly to avoid damaging internal parts and ensuring the tripod's center column is raised high enough to prevent the telescope from hitting the legs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI've attached my own solar telescope, but the SolarQuest's pointing is still off after saving the offset. What do I do?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor a non-Sky-Watcher solar telescope, you may need to perform a one-time calibration. The manual describes a process involving powering on the mount while holding the 8-way switch in the upper-left position, waiting for the mount to find the Sun, manually centering the Sun, and then double-clicking the power button to finalize the calibration.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat happens if clouds pass in front of the Sun while the SolarQuest is tracking?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThick or low clouds might reduce the accuracy of the auto-pointing and can cause the Sun to visibly drift in the eyepiece while tracking. Strong reflected light within its search path can also stop the auto-pointing routine unexpectedly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I move the SolarQuest mount by hand?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. You must always use the 8-way slide switch to move the mount. Forcing the mount to rotate manually might damage the internal mechanical parts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need to level the SolarQuest tripod perfectly?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou only need to perform a rough leveling. Adjust the tripod legs until the bubble in the built-in bubble level on the mount is centered. After you power it on, the SolarQuest mount levels the solar telescope automatically.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eTo get a faster alignment, where should I point the telescope before turning the SolarQuest on?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe manual suggests that pointing the solar telescope to the left of the Sun before turning on the power can reduce the search time. This is because the mount's search pattern is a clockwise slew in azimuth.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eAutomatic solar finding and tracking mount, for solar telescopes only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlignment\u003c\/td\u003e\n\u003ctd\u003eAutomatic leveling, built-in GPS, solar sensor finds the Sun\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Weight\u003c\/td\u003e\n\u003ctd\u003e1.3 kg (2.9 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePayload\u003c\/td\u003e\n\u003ctd\u003e5 kg (11 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTripod\u003c\/td\u003e\n\u003ctd\u003e1.9 kg (4.2 lb), with accessory tray\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExtension Pier\u003c\/td\u003e\n\u003ctd\u003e0.85 kg (1.9 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControls\u003c\/td\u003e\n\u003ctd\u003ePower button, 8-way slide switch, red and green LEDs, built-in bubble level\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSaddle\u003c\/td\u003e\n\u003ctd\u003eDovetail saddle with locking knob\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Tripod Use\u003c\/td\u003e\n\u003ctd\u003e3\/8\" socket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirement\u003c\/td\u003e\n\u003ctd\u003e8 AA batteries (not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSolarQuest Mount\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTripod\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eExtension Pier\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTripod Accessory Tray\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967195967773,"sku":"SW-S21170","price":699.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-WatcherSolarQuestMount-S21170-1__53580.1594170834.1280.1280.jpg?v=1684338629"},{"product_id":"william-optics-50mm-guiding-scope","title":"William Optics 50mm Guiding Scope","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e50mm Aperture Doublet Lens\u003c\/li\u003e\n\u003cli\u003e200mm Focal Length\u003c\/li\u003e\n\u003cli\u003ef\/4.0 Focal Ratio\u003c\/li\u003e\n\u003cli\u003e1.25\" RotoLock Eyepiece Holder\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.42 kg \/ 0.93 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics 50mm Guiding Scope\u003c\/h2\u003e\n\u003cp\u003eThe William Optics 50mm Guiding Scope combines a 50mm doublet objective with a fast f\/4.0 focal ratio to deliver a wide field of view for reliable autoguiding. Its 200mm focal length is optimized for finding guide stars easily, while the entire optical tube weighs only 0.42 kg (0.93 lbs), adding minimal load to your mount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eWide-Field Guiding: A Fast f\/4.0, 200mm Optical System\u003c\/h3\u003e\n\u003cp\u003eThe core of this \u003ca href=\"\/en-int\/collections\/autoguiding\"\u003eguide scope\u003c\/a\u003e is its 50mm f\/4.0 optical system. This combination produces a 200mm focal length that yields a very wide field of view, dramatically increasing the odds of finding a suitable guide star in any part of the sky without having to re-frame your primary target. The fully multi-coated doublet lens ensures bright, high-contrast star images for your \u003ca href=\"\/en-int\/collections\/guide-cameras\"\u003eguide camera\u003c\/a\u003e, enabling a stronger lock and more precise corrections.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSecure \u0026amp; Lightweight: 1.25\" RotoLock at Just 0.42 kg\u003c\/h3\u003e\n\u003cp\u003eWeighing a mere 0.42 kg, this guide scope minimizes its impact on your mount's payload and reduces the potential for system flexure. A key feature is the integrated 1.25\" RotoLock adapter, a superior alternative to simple thumbscrews. The RotoLock provides a secure, self-centering grip on your guide camera, ensuring it remains perfectly aligned with the optical axis throughout your imaging session for consistent, error-free guiding.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the William Optics 50mm Guiding Scope's f\/4.0 focal ratio beneficial?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe fast \u003cstrong\u003ef\/4.0 focal ratio\u003c\/strong\u003e, combined with the \u003cstrong\u003e200mm focal length\u003c\/strong\u003e, creates a very wide field of view. This allows your guide camera to see a larger patch of sky, dramatically increasing the number of potential guide stars available and making setup faster.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 1.25\" RotoLock adapter on the William Optics scope improve guiding?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e1.25\" RotoLock\u003c\/strong\u003e provides a secure, self-centering connection for your guide camera. Unlike thumbscrews that can cause tilt, the RotoLock ensures the camera sensor is perfectly aligned with the optical axis, which is critical for preventing guiding errors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 0.42 kg weight of the William Optics Guiding Scope significant?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. At only \u003cstrong\u003e0.42 kg (0.93 lbs)\u003c\/strong\u003e, the scope adds minimal weight and torque to your imaging setup. This reduces the risk of mechanical flexure and ensures your mount's tracking performance isn't compromised by an unnecessarily heavy accessory.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 200mm focal length precise enough for my wide-field refractor imaging the Cygnus Loop?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The \u003cstrong\u003e200mm focal length\u003c\/strong\u003e is a perfect match for wide-field imaging. It provides more than enough guiding accuracy for shorter focal length \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractors\u003c\/a\u003e, ensuring round stars across large mosaics of targets like the Veil Nebula complex (NGC 6960, etc.) without being overly sensitive to atmospheric seeing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen would an Off-Axis Guider be better than the William Optics 50mm scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile this 50mm guide scope is excellent for most systems, an Off-Axis Guider (OAG) is often preferred for very long focal length instruments (e.g., large RCs or \u003ca href=\"\/en-int\/collections\/schmidt-cassegrain-telescopes\"\u003eSCTs\u003c\/a\u003e) to eliminate differential flexure. An OAG samples the same light path as the imaging camera, correcting for any mirror shift that a separate guide scope cannot see.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e200 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/4.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Type\u003c\/td\u003e\n\u003ctd\u003eDoublet Lens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Length\u003c\/td\u003e\n\u003ctd\u003e252 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.42 kg \/ 0.93 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera connection\u003c\/td\u003e\n\u003ctd\u003e1.25\" RotoLock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics 50mm Guiding Scope\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1.25\" RotoLock Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Black","offer_id":44967214022941,"sku":"WO-M-G50NCIII","price":234.0,"currency_code":"CAD","in_stock":true},{"title":"Grey","offer_id":44967214055709,"sku":"WO-M-G50BWIII","price":202.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/William-Optics-50mm-Guide-Scope-1.jpg?v=1722279442"},{"product_id":"william-optics-slide-base-uniguide-50mm-scope","title":"William Optics Slide-Base UniGuide 50mm Scope","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e50mm Aperture Doublet Lens\u003c\/li\u003e\n\u003cli\u003e200mm Focal Length (f\/4.0)\u003c\/li\u003e\n\u003cli\u003eIntegrated 1.25\" RotoLock Adapter\u003c\/li\u003e\n\u003cli\u003eSlide-Base for William Optics Handles\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.5 kg \/ 1.1 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics Slide-Base UniGuide 50mm Scope\u003c\/h2\u003e\n\u003cp\u003eThe William Optics Slide-Base UniGuide 50mm Scope combines a fast f\/4.0 optical system with a 200mm focal length to deliver a bright, wide field of view ideal for autoguiding. Its 50mm doublet lens gathers ample light for tracking faint guide stars, while the entire assembly weighs just 0.5 kg (1.1 lbs), adding minimal load to your imaging setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e50mm f\/4.0 Optics: Bright Stars Across a Wide Field\u003c\/h3\u003e\n\u003cp\u003eFinding a suitable guide star is simplified with the UniGuide's optical design. The 50mm aperture and fast f\/4.0 focal ratio produce bright, sharp star fields, ensuring your \u003ca href=\"\/en-int\/collections\/autoguiding\"\u003eautoguider\u003c\/a\u003e has plenty of targets to choose from. The 200mm focal length provides an ideal image scale for guiding short-to-medium focal length imaging telescopes with precision.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoublet Lens:\u003c\/strong\u003e The doublet objective is fully multi-coated to maximize light transmission and contrast, critical for detecting faint stars.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Field of View:\u003c\/strong\u003e The combination of the 50mm aperture and 200mm focal length creates a generous field of view, reducing the time spent hunting for a guide star near your deep-sky target.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eRotoLock \u0026amp; Slide-Base: A 0.5 kg Zero-Flexure Guiding System\u003c\/h3\u003e\n\u003cp\u003eThis guide scope eliminates two common sources of guiding error: camera sag and differential flexure. The innovative mechanical design ensures a rock-solid connection from your \u003ca href=\"\/en-int\/collections\/guide-cameras\"\u003eguide camera\u003c\/a\u003e straight through to your main telescope, all within a lightweight 0.5 kg package.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.25\" RotoLock Adapter:\u003c\/strong\u003e Forget flimsy thumbscrews. The RotoLock system secures your guide camera with a simple twist, creating a perfectly centered, non-marring, and rotation-free connection that prevents sag and tilt.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlide-Base Integration:\u003c\/strong\u003e Designed for modern William Optics telescopes, the integrated base slides directly into the scope's handle, eliminating the need for separate guide rings and \u003ca href=\"\/en-int\/collections\/dovetail-plates\"\u003edovetail bars\u003c\/a\u003e. This creates a more rigid, compact, and lighter guiding setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eM48 Threading:\u003c\/strong\u003e For additional mounting flexibility, an M48 male thread is located under the RotoLock adapter, allowing for direct connection to other accessories.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I mount the William Optics UniGuide 50mm scope to my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe UniGuide 50mm features an integrated slide-base designed to fit directly into the \u003ca href=\"\/en-int\/collections\/saddles-and-clamps\"\u003esaddle\u003c\/a\u003e of compatible William Optics carrying handles. This provides a secure, low-profile attachment without extra hardware.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the RotoLock adapter on the UniGuide 50mm better than standard thumbscrews?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e1.25\" RotoLock adapter\u003c\/strong\u003e provides a superior connection for your guide camera. Unlike thumbscrews, which can cause tilt and do not guarantee perfect centering, the RotoLock uses a rotating compression ring. This ensures your camera is held securely on-axis, preventing sag and flexure that can ruin long exposures. It also avoids scratching or denting your camera's nosepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the UniGuide 50mm work well for guiding my RedCat on a target like the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it's an excellent match. The UniGuide's 200mm focal length pairs very well with wide-field \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractors\u003c\/a\u003e like the RedCat series. Its wide field of view makes it easy to find a bright guide star within the large expanse of a target like the Andromeda Galaxy (M31), ensuring sharp stars across your entire image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of guide cameras are compatible with the UniGuide 50mm scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe William Optics UniGuide 50mm is compatible with any guide camera that has a standard \u003cstrong\u003e1.25\" nosepiece\u003c\/strong\u003e. This includes popular models from ZWO, QHY, Player One, and others. The RotoLock adapter provides a secure grip on any standard 1.25\" barrel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 200mm focal length of the UniGuide 50mm a good match for an 8\" f\/8 Ritchey-Chrétien?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile it can work, a 200mm focal length is on the shorter side for guiding a telescope with a focal length of 1600mm or more. For optimal guiding with a long focal length RC, astronomers often prefer a guide scope with a longer focal length or use an off-axis guider (OAG). However, for exposures under a few minutes with a good mount, the UniGuide 50mm can still provide acceptable results.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use filters with the William Optics UniGuide 50mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The UniGuide features an \u003cstrong\u003eM48 male thread\u003c\/strong\u003e concealed beneath the 1.25\" RotoLock adapter. If you unscrew the RotoLock portion, you can attach accessories with a corresponding M48 female thread, such as a \u003ca href=\"\/en-int\/collections\/filter-accessories\"\u003efilter holder\u003c\/a\u003e or other adapters, though this is not a common application for a guide scope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Type\u003c\/td\u003e\n\u003ctd\u003eDoublet Lens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e200 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/4.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Length\u003c\/td\u003e\n\u003ctd\u003e252 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.5 kg \/ 1.1 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera connection\u003c\/td\u003e\n\u003ctd\u003e1.25\" RotoLock; M48 Male (under RotoLock)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting (shoe \/ rings)\u003c\/td\u003e\n\u003ctd\u003eSlide-base for William Optics handles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics Slide-Base UniGuide 50mm Scope\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Black and red","offer_id":50843684569373,"sku":"WO-M-G50PB-BR","price":261.0,"currency_code":"CAD","in_stock":true},{"title":"Red","offer_id":44967216775453,"sku":"WO-M-G50PB-WR","price":261.0,"currency_code":"CAD","in_stock":true},{"title":"Gold","offer_id":44967216709917,"sku":"WO-M-G50PB-WG","price":261.0,"currency_code":"CAD","in_stock":true},{"title":"Grey","offer_id":44967216808221,"sku":"WO-M-G50PB-TG","price":261.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/William-Optics-Uniguide-50mm.png?v=1722279198"},{"product_id":"william-optics-slide-base-uniguide-32mm-scope","title":"William Optics Slide-Base UniGuide 32mm Scope","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e32mm Doublet Objective Lens\u003c\/li\u003e\n\u003cli\u003eFast f\/3.75 Focal Ratio\u003c\/li\u003e\n\u003cli\u003e120mm Focal Length\u003c\/li\u003e\n\u003cli\u003eIntegrated Vixen\/Synta-Style Slide-Base\u003c\/li\u003e\n\u003cli\u003eUltra-Lightweight at 0.23 kg (0.51 lbs)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics Slide-Base UniGuide 32mm Scope\u003c\/h2\u003e\n\u003cp\u003eThe William Optics Slide-Base UniGuide 32mm Scope integrates a fast f\/3.75 optical system with a 120mm focal length into a rigid, featherlight 0.23 kg assembly. Its 32mm doublet objective lens provides bright, sharp guide stars, while the compact 147mm tube and integrated slide-base mount are engineered to eliminate the differential flexure that plagues traditional ring-mounted \u003ca href=\"\/en-int\/collections\/autoguiding\"\u003eguide scopes\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFast f\/3.75 Optics: A 32mm Doublet for Bright Guide Stars\u003c\/h3\u003e\n\u003cp\u003eAt the heart of the UniGuide is a fully multi-coated 32mm doublet lens. This design delivers high-contrast images, rendering potential guide stars as sharp, tight points. The fast f\/3.75 focal ratio works with the 120mm focal length to produce a bright image, allowing your \u003ca href=\"\/en-int\/collections\/guide-cameras\"\u003eguide camera\u003c\/a\u003e to use shorter exposures and track stars more effectively, even in areas of the sky with fewer bright targets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIntegrated Slide-Base Mount: A Rigid 0.23 kg Guiding Solution\u003c\/h3\u003e\n\u003cp\u003eWeighing only 0.23 kg (0.51 lbs), the UniGuide adds minimal load to your mount. Its key innovation is the integrated Vixen\/Synta-style slide-base, designed to attach directly to the handle bar or \u003ca href=\"\/en-int\/collections\/saddles-and-clamps\"\u003esaddle\u003c\/a\u003e of compatible William Optics telescopes. This single-piece construction creates a solid, flex-free connection between your imaging scope and guide scope, which is critical for maintaining accurate tracking over long exposures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e1.25\" and M42 Threads: Universal Guide Camera Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe UniGuide is designed for broad compatibility with the most popular guide cameras on the market. It features a 1.25\" adapter and an M42 thread for a direct connection to cameras that support it. This dual-interface system ensures you can securely mount compact guiders like the \u003ca href=\"\/en-int\/products\/zwo-asi120mm-mini-mono\"\u003eZWO ASI120MM Mini\u003c\/a\u003e or Starlight Xpress Lodestar for a stable, reliable setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe 0.23 kg UniGuide vs. Rings: Eliminating Differential Flexure\u003c\/h3\u003e\n\u003cp\u003eTraditional guide scopes rely on adjustable rings, which introduce multiple points of potential sag, slippage, and flexure as the telescope tracks across the sky. The UniGuide's 0.23 kg, single-body design bypasses this entire problem. By mounting directly and rigidly to the main optical tube, it ensures both telescopes move as one, eliminating a primary source of elongated stars and improving the quality of your final images.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat guide cameras are compatible with the William Optics UniGuide 32mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe UniGuide 32mm is compatible with a wide range of guide cameras thanks to its dual connection options. You can use any camera with a \u003cstrong\u003e1.25\" nosepiece\u003c\/strong\u003e or one that can connect via an M42 thread. This includes popular models like the ZWO ASI120 Mini, QHY5L-II, and Starlight Xpress Lodestar.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I mount the UniGuide 32mm Scope to my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe UniGuide features an integrated \u003cstrong\u003eVixen\/Synta-style slide-base\u003c\/strong\u003e. This allows it to mount directly onto the carrying handle or saddle of most William Optics telescopes without any additional rings or hardware, ensuring a quick, simple, and rigid connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main advantage of the UniGuide's slide-base over traditional guide rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage is the elimination of \u003cstrong\u003edifferential flexure\u003c\/strong\u003e. Traditional rings can sag or allow the guide scope to shift slightly relative to the main telescope, causing guiding errors. The UniGuide's rigid, one-piece mounting system ensures both scopes move in perfect unison, leading to sharper, rounder stars in your long exposures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the UniGuide 32mm work with a non-William Optics telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, as long as your telescope has a Vixen-style saddle clamp available where you want to mount the guide scope. The UniGuide's base conforms to the standard Vixen\/Synta profile, so it can be attached to any compatible saddle, not just those on William Optics telescopes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm imaging the North American Nebula (NGC 7000) with a wide-field refractor; is the UniGuide 32mm a good match?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe UniGuide 32mm is an excellent match for wide-field \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractors\u003c\/a\u003e. Its light weight of 0.23 kg keeps the entire imaging payload balanced and manageable. The 120mm focal length provides a very wide field of view, making it extremely easy to find a suitable guide star within the expansive star fields around targets like the North American Nebula (NGC 7000).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Type\u003c\/td\u003e\n\u003ctd\u003eDoublet Lens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e32 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e120 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/3.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Length\u003c\/td\u003e\n\u003ctd\u003e147 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.23 kg \/ 0.51 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera connection\u003c\/td\u003e\n\u003ctd\u003e1.25\" Adapter; M42 Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting (shoe \/ rings)\u003c\/td\u003e\n\u003ctd\u003eVixen\/Synta-Style Slide-Base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics UniGuide 32mm Scope with Integrated Slide-Base\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Red","offer_id":44967216906525,"sku":"WO-M-G32PB-RD","price":180.0,"currency_code":"CAD","in_stock":true},{"title":"Grey","offer_id":44967216873757,"sku":"WO-M-G32PB-TG","price":180.0,"currency_code":"CAD","in_stock":true},{"title":"Gold","offer_id":44967216840989,"sku":"WO-M-G32PB-GD","price":180.0,"currency_code":"CAD","in_stock":true},{"title":"Blue","offer_id":48958897848605,"sku":"WO-M-G32PB-BU","price":180.0,"currency_code":"CAD","in_stock":true},{"title":"Black","offer_id":52839936360733,"sku":"WO-M-G32PB-BR","price":180.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/William-Optics-Uniguide-32mm.png?v=1722104957"},{"product_id":"william-optics-243-308mm-bahtinov-focusing-mask","title":"William Optics 243-308mm Bahtinov Focusing Mask","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits Dew Shields with Outer Diameters from 243mm to 308mm\u003c\/li\u003e\n\u003cli\u003eGenerates a Clear Three-Spike Diffraction Pattern for Precise Focusing\u003c\/li\u003e\n\u003cli\u003eEssential Tool for Deep-Sky and Planetary Astrophotography\u003c\/li\u003e\n\u003cli\u003eLightweight Design Minimizes Impact on Telescope Balance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics 243-308mm Bahtinov Focusing Mask\u003c\/h2\u003e\n\u003cp\u003eThe William Optics Bahtinov Focusing Mask is the definitive tool for achieving critical focus, designed to fit telescopes with \u003ca href=\"\/en-int\/collections\/dew-prevention-and-control\"\u003edew shield\u003c\/a\u003e diameters from 243mm to 308mm. By generating an unmistakable diffraction pattern, this mask transforms the subjective act of focusing into a precise, repeatable, and rapid adjustment, ensuring your stellar images are perfectly sharp from the start.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe Bahtinov Pattern: Objective Focus in Seconds\u003c\/h3\u003e\n\u003cp\u003eA Bahtinov mask works by creating a set of three diffraction spikes around any bright star in your field of view. Two spikes form a fixed \"X,\" while a third central spike moves as you adjust your \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e. Perfect focus is achieved the moment this central spike is perfectly centered within the \"X\"—an unambiguous pattern that your eyes can verify instantly on a camera's live view screen.\u003c\/p\u003e\n\u003cp\u003eThis method removes all guesswork. It is faster and often more accurate than relying on visual estimation or chasing the smallest star size, giving you a physical, undeniable confirmation of critical focus every time you set up.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAdjustable Fit for 243mm to 308mm Dew Shields\u003c\/h3\u003e\n\u003cp\u003eThe mask mounts on the end of your telescope's dew shield. It fits dew shields with an outer diameter from 243mm to 308mm, so measure yours before ordering.\u003c\/p\u003e\n\u003cp\u003eAttaching to the dew shield is a critical design choice. It keeps the mask clear of the objective, and one mask serves every telescope whose dew shield falls within its range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBahtinov Mask vs. FWHM Software: A Critical Advantage in Real-World Seeing\u003c\/h3\u003e\n\u003cp\u003eWhile software metrics like Full Width at Half Maximum (FWHM) are powerful, they are highly susceptible to atmospheric seeing. A moment of poor seeing can cause FWHM values to jump, leading you to settle on a focus position that isn't truly optimal. The Bahtinov pattern, however, is largely immune to this turbulence.\u003c\/p\u003e\n\u003cp\u003eThe diffraction spikes remain coherent and readable even when the star's image is boiling. This allows you to find the true point of best focus regardless of atmospheric conditions, a crucial advantage that saves time and prevents entire subframes from being compromised by soft stars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the William Optics 243-308mm Bahtinov Mask?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSimply place the mask over the end of your telescope's dew shield. Point your telescope at a moderately bright star, and engage your camera's live view. You will see a three-spike diffraction pattern. Adjust your focuser until the central spike is perfectly centered between the other two spikes. Once centered, your focus is perfect. Remove the mask before you begin imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs a Bahtinov mask better than my camera's live view zoom for focusing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, for astrophotography, a Bahtinov mask is significantly more precise. While zooming in helps you see the star, your eye can be tricked into accepting a \"good enough\" focus. The mask creates a pattern that shows you not just when you are in focus, but the \u003cstrong\u003edirection\u003c\/strong\u003e you need to move the focuser to achieve it, removing all ambiguity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the William Optics Bahtinov Mask for visual observing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA Bahtinov mask is a tool specifically for photographic focusing. While you could technically use it to focus an \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepiece\u003c\/a\u003e, the diffraction pattern is faint and difficult to judge by eye. It is designed to be used with the high sensitivity and magnification of a camera's live view screen.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy should I use this mask when imaging Jupiter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor planetary imaging, critical focus is essential to resolve fine details like cloud bands on Jupiter or the Cassini Division in Saturn's rings. The best practice is to focus on a nearby bright star using the William Optics Bahtinov Mask, lock your focuser, and then slew back to the planet to begin your high-frame-rate capture. This ensures your focus is set with objective precision before you start recording.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the William Optics Bahtinov Mask work with color cameras?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The mask works perfectly with both monochrome and one-shot color cameras. The diffraction pattern is created by the physics of light and is independent of the type of sensor you are using. Some advanced users even use the slight color separation (chromatic aberration) at the tips of the spikes to fine-tune focus for different color channels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eWilliam Optics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eBahtinov Focusing Mask\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eWO-BM-DS-GR150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eMounts on Telescope Dew Shield\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Dew Shield Diameter\u003c\/td\u003e\n\u003ctd\u003e243mm - 308mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics 243-308mm Bahtinov Focusing Mask\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967217004829,"sku":"WO-BM-DS-GR150","price":142.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-243-308mm-Bahtinov-Focusing-Mask-BM-DS-GR150-1__38162.1596133226.1280.1280.jpg?v=1684339072"},{"product_id":"william-optics-75mm-110mm-bahtinov-focusing-mask","title":"William Optics 75mm -110mm Bahtinov Focusing Mask","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits Telescope Dew Shields from 75mm to 110mm\u003c\/li\u003e\n\u003cli\u003eCreates Sharp Diffraction Spikes for Precise Focusing\u003c\/li\u003e\n\u003cli\u003eIdeal for Small Apochromatic Refractors and Astrographs\u003c\/li\u003e\n\u003cli\u003eEliminates Subjective Focusing Errors\u003c\/li\u003e\n\u003cli\u003eA Critical Tool for Astrophotography\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics 75mm -110mm Bahtinov Focusing Mask\u003c\/h2\u003e\n\u003cp\u003eThe William Optics Bahtinov Focusing Mask provides a simple, data-driven method for achieving perfect focus on any telescope with a \u003ca href=\"\/en-int\/collections\/dew-prevention-and-control\"\u003edew shield\u003c\/a\u003e outer diameter between 75mm and 110mm. This essential tool removes the guesswork from focusing, allowing you to achieve critically sharp stars for every astrophoto.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePrecision Focusing for Telescopes from 75mm to 110mm\u003c\/h3\u003e\n\u003cp\u003eThis mask operates on the principle of diffraction, splitting the light from a bright star into a distinct, symmetrical spike pattern. As you adjust your \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e, the central spike moves in or out; perfect focus is achieved the moment this spike is precisely centered between the outer two. The result is an unambiguous, repeatable focus point that is far more accurate than the human eye alone.\u003c\/p\u003e\n\u003cp\u003eDesigned for versatility, the mask is built to fit any telescope tube or dew shield with an outer diameter ranging from 75mm to 110mm. This makes it a perfect match for many popular wide-field \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractors\u003c\/a\u003e and other portable imaging instruments, ensuring your small-aperture setup can produce the sharpest possible images.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the William Optics 75-110mm Bahtinov Mask?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003ePlace the mask over the front of your telescope's dew shield or objective. Point to a moderately bright star, bring it into a rough focus, and view it on your camera's live-view screen. You will see a diffraction pattern of three spikes. Adjust the focuser until the central spike is perfectly centered between the other two, then lock your focuser and remove the mask.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this William Optics mask fit my 80mm refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, most likely. This mask is designed for any telescope with an outer dew shield diameter between \u003cstrong\u003e75mm and 110mm\u003c\/strong\u003e. An 80mm refractor typically has a dew shield that falls comfortably within this range, making this mask an ideal fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the 75-110mm Bahtinov mask for imaging Jupiter or the Moon?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, a Bahtinov mask requires a point-like light source, such as a star, to generate its distinctive diffraction pattern. Planets like Jupiter or extended objects like the Moon do not produce the necessary pattern for the mask to work. For planets, it's best to focus on one of its moons first before turning to the planet itself.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes a Bahtinov mask more accurate than focusing by eye?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFocusing by eye is subjective and can be affected by atmospheric seeing, eye fatigue, and small judgment errors. A Bahtinov mask converts the abstract concept of \"sharpness\" into a simple, symmetrical geometric pattern. Aligning the central spike is a precise, objective task that yields repeatable, perfect focus every time, independent of the observer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the William Optics Bahtinov mask useful for visual observing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile primarily designed for the critical demands of astrophotography, a Bahtinov mask can also be used for visual observing to ensure your telescope is perfectly focused. However, its main benefit is for imaging, where even a tiny focusing error can ruin a long exposure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy does the diffraction pattern change as I focus?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe pattern is a direct visualization of the light cone from the star. When you are inside or outside of focus, the light cone is wider, causing the central diffraction spike to shift to one side. At the exact point of focus, the light cone is at its narrowest point, and the diffraction pattern becomes perfectly symmetrical.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eBahtinov Focusing Mask\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Dew Shield Diameter\u003c\/td\u003e\n\u003ctd\u003e75mm - 110mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics 75mm -110mm Bahtinov Focusing Mask\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967217037597,"sku":"WO-BM-DS-GR45","price":77.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-75mm-110mm-Bahtinov-Focusing-Mask-BM-DS-GR45-1__16153.1596133226.1280.1280.jpg?v=1684339076"},{"product_id":"william-optics-105-148mm-bahtinov-focusing-mask","title":"William Optics 105 -148mm Bahtinov Focusing Mask","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits Telescope Dew Shields from 105mm to 148mm\u003c\/li\u003e\n\u003cli\u003eGenerates Clear Diffraction Spikes for Focusing\u003c\/li\u003e\n\u003cli\u003eRemoves Subjectivity from Manual Focusing\u003c\/li\u003e\n\u003cli\u003eLightweight and Durable Construction\u003c\/li\u003e\n\u003cli\u003eIdeal for Astrophotography\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics 105-148mm Bahtinov Focusing Mask\u003c\/h2\u003e\n\u003cp\u003eThe William Optics Bahtinov Focusing Mask provides a fast, repeatable method for achieving critical focus for astrophotography. It is designed to fit any telescope with an outer \u003ca href=\"\/en-int\/collections\/dew-prevention-and-control\"\u003edew shield\u003c\/a\u003e diameter between 105mm and 148mm, making it a versatile tool for a wide range of optical tubes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUniversal Fit for Dew Shields from 105mm to 148mm\u003c\/h3\u003e\n\u003cp\u003eThis mask features adjustable mounting posts to securely grip the outer edge of your telescope's dew shield. This simple yet effective design allows it to fit a wide variety of instruments, from small \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractors\u003c\/a\u003e to mid-sized \u003ca href=\"\/en-int\/collections\/reflectors\"\u003ereflectors\u003c\/a\u003e, as long as the dew shield diameter falls within the 105mm to 148mm range.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Fit:\u003c\/strong\u003e Securely mounts on any dew shield from 105mm to 148mm in diameter, ensuring broad compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight Construction:\u003c\/strong\u003e Adds minimal weight to the front of your telescope, preventing balance issues when imaging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple Installation:\u003c\/strong\u003e Attaches and removes in seconds without any tools, letting you get to focusing quickly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe Bahtinov Diffraction Pattern: Visualizing Perfect Focus\u003c\/h3\u003e\n\u003cp\u003eInstead of guessing when a star is at its smallest point, the Bahtinov mask creates a bright, easy-to-see diffraction pattern around it. As you adjust your \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e, you'll see a central diffraction spike move between two outer spikes. Perfect focus is achieved only when the central spike is perfectly centered and symmetrical.\u003c\/p\u003e\n\u003cp\u003eThis visual confirmation is immediate and unambiguous, even on a small camera screen. It works on any bright star and is significantly more accurate than relying on visual estimation, which can be affected by eye fatigue and atmospheric conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBahtinov Mask vs. FWHM: Why Visual Confirmation Matters\u003c\/h3\u003e\n\u003cp\u003eWhile autofocus routines using Full Width at Half Maximum (FWHM) are powerful, they can be misled by atmospheric turbulence (\"seeing\"), which causes star sizes to fluctuate moment by moment. A Bahtinov mask is largely immune to seeing; the diffraction pattern remains stable and readable even when the air is unsteady.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeeing Immunity:\u003c\/strong\u003e Provides a clear result even in turbulent atmospheric conditions that can fool software metrics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo Software Required:\u003c\/strong\u003e An essential analog tool that works directly at the \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepiece\u003c\/a\u003e or on any live-view camera feed without needing a computer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFaster Than Software:\u003c\/strong\u003e For manual focusing, finding the symmetrical spike pattern is often faster than waiting for software to analyze multiple exposures and calculate FWHM values.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the William Optics 105-148mm Bahtinov Mask?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSimply place the mask over the front of your telescope's dew shield and point at a moderately bright star. Use your camera's live view, zoomed in on the star, to see the diffraction pattern. Adjust your focuser until the central spike is perfectly centered between the two outer spikes. Once centered, your focus is perfect, and you can remove the mask to begin imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this William Optics Bahtinov mask fit my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis mask is designed to fit any telescope with an outer dew shield diameter that measures between \u003cstrong\u003e105mm and 148mm\u003c\/strong\u003e. Measure the outside diameter of your dew shield to confirm compatibility. The adjustable posts will securely hold it in place within this range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of star should I use to focus the William Optics Bahtinov Mask?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eChoose a bright star that is not overly brilliant, like Vega or Arcturus. An ideal star is bright enough to produce a clear diffraction pattern on your camera's live view but not so bright that it completely saturates the sensor, which can make the spikes difficult to judge. It's often best to choose a star near your imaging target to minimize focus shift from mirror flop or temperature changes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the William Optics 105-148mm Bahtinov Mask for visual observing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile designed for astrophotography, a Bahtinov mask can be used for visual focusing. However, the diffraction pattern is much easier to see and evaluate on a camera screen than through an eyepiece. For imaging, it is an essential tool; for visual, it can be helpful but is generally less necessary.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a William Optics ZenithStar 81; will this 105-148mm mask fit?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this mask is a good fit for many popular refractors. To be certain, you should measure the outer diameter of your ZenithStar 81's dew shield. If it falls within the \u003cstrong\u003e105mm to 148mm\u003c\/strong\u003e range, the mask will fit perfectly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the William Optics Bahtinov Mask help when imaging a target like the Orion Nebula (M42) with a DSLR?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen imaging a faint object like the Orion Nebula (M42), achieving perfect focus is critical to capturing fine detail. Before you slew to the nebula, point your DSLR and telescope to a nearby bright star like Rigel. Use the Bahtinov mask with your camera's live view to set focus precisely. Then, remove the mask and move to M42, confident that your stars will be as sharp as possible in your final stacked image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMask Type\u003c\/td\u003e\n\u003ctd\u003eBahtinov\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment Method\u003c\/td\u003e\n\u003ctd\u003eMounts on Telescope Dew Shield\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment Diameter Range\u003c\/td\u003e\n\u003ctd\u003e105mm - 148mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics 105-148mm Bahtinov Focusing Mask\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967217103133,"sku":"WO-BM-DS-GR55","price":89.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-105-148mm-Bahtinov-Focusing-Mask-BM-DS-GR55-1__76274.1596133226.1280.1280.jpg?v=1684339080"},{"product_id":"william-optics-172mm-235mm-bahtinov-focusing-mask","title":"William Optics 172mm -235mm Bahtinov Focusing Mask","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits Dew Shield Diameters from 172mm to 235mm\u003c\/li\u003e\n\u003cli\u003eGenerates Clear Diffraction Spikes for Precise Focusing\u003c\/li\u003e\n\u003cli\u003eIdeal for Astrophotography of Planets and Deep-Sky Objects\u003c\/li\u003e\n\u003cli\u003eAdjustable Mount for a Secure Fit on Multiple Telescopes\u003c\/li\u003e\n\u003cli\u003eLightweight and Durable Construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics 172mm - 235mm Bahtinov Focusing Mask\u003c\/h2\u003e\n\u003cp\u003eThe William Optics Bahtinov Focusing Mask eliminates the guesswork of achieving critical focus by providing a simple, repeatable method for any telescope with a \u003ca href=\"\/en-int\/collections\/dew-prevention-and-control\"\u003edew shield\u003c\/a\u003e diameter from 172mm to 235mm. This essential tool is engineered for the astrophotographer who requires objective, perfect focus for every imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eOne Mask for Multiple Telescopes: 172mm to 235mm Fit\u003c\/h3\u003e\n\u003cp\u003eThis mask's key feature is its adjustable mounting system, designed to fit a wide range of instruments. The versatile 172mm to 235mm diameter range means a single mask can serve your entire collection of mid-sized telescopes, from 6-inch \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractors\u003c\/a\u003e to 8-inch \u003ca href=\"\/en-int\/collections\/schmidt-cassegrain-telescopes\"\u003eSCTs\u003c\/a\u003e, without needing to buy a custom-fit mask for each one. The secure mounting ensures it stays perfectly centered on your optical axis without slipping.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFrom Guesswork to Certainty: Diffraction-Based Focusing\u003c\/h3\u003e\n\u003cp\u003eA Bahtinov mask creates a distinctive diffraction pattern of spikes around any bright star. As you adjust your \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e, a central spike moves in relation to two outer spikes. Perfect, critical focus is achieved only when the central spike is positioned exactly in the middle, creating a perfectly symmetrical pattern. This method is far more precise than relying on visual estimation or FWHM measurements, which can be easily skewed by atmospheric seeing conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the William Optics 172-235mm Bahtinov Mask?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eUsing the \u003cstrong\u003eWilliam Optics Bahtinov Mask\u003c\/strong\u003e is straightforward. First, place the mask over the front of your telescope's dew shield and secure it. Point your telescope at a bright star, and bring it into rough focus. When you view the star through your camera's live view, you will see the diffraction spike pattern. Adjust your focuser until the central spike is perfectly centered between the two outer spikes. Once symmetrical, your focus is perfect, and you can remove the mask.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the William Optics 172-235mm Bahtinov Mask fit my 8-inch SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. An 8-inch (203mm) Schmidt-Cassegrain Telescope typically has a dew shield outer diameter that falls comfortably within the \u003cstrong\u003e172mm to 235mm\u003c\/strong\u003e range of this mask. This makes it an ideal focusing tool for popular 8\" SCT and EdgeHD models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes this William Optics Bahtinov Mask better than just focusing by eye?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFocusing by eye is subjective and can be affected by seeing conditions, eye fatigue, and the observer's visual acuity. The \u003cstrong\u003eWilliam Optics Bahtinov Mask\u003c\/strong\u003e removes this subjectivity by creating a clear, unmistakable pattern. Achieving a symmetrical diffraction pattern is an objective, repeatable indicator of perfect focus that does not depend on the observer's judgment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the William Optics Bahtinov Mask for planetary imaging of Jupiter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile you cannot focus on the planet itself, you can use the \u003cstrong\u003eWilliam Optics Bahtinov Mask\u003c\/strong\u003e on a nearby bright star to achieve perfect focus before slewing back to Jupiter. This ensures your telescope is critically focused for capturing fine details in Jupiter's cloud bands and the Great Red Spot. Once focused on the star, lock your focuser and remove the mask before beginning your planetary capture.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich star is best for focusing with the William Optics Bahtinov Mask?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ideal target is a moderately bright, isolated star. Stars like Vega, Arcturus, or Capella are excellent choices. Avoid using very dim stars, as the diffraction pattern will be faint, or extremely bright stars that might saturate your camera sensor, making the spikes difficult to judge accurately. Also, choose a star that is near the celestial object you plan to image to minimize focus shift from mirror flop or temperature changes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eWO-BM-DS-GR90\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Dew Shield Diameter\u003c\/td\u003e\n\u003ctd\u003e172mm - 235mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics 172mm - 235mm Bahtinov Focusing Mask\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967217201437,"sku":"WO-BM-DS-GR90","price":115.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-172mm-235mm-Bahtinov-Focusing-Mask-BM-DS-GR90-1__73641.1596133227.1280.1280.jpg?v=1684339086"},{"product_id":"william-optics-bahtinov-mask-cover-for-gt71-z73-star71ii","title":"William Optics Bahtinov Mask Cover for GT71 \/ Z73 \/ Star71II","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003ePatented Bahtinov mask integrated into a dust cover\u003c\/li\u003e\n\u003cli\u003ePrecision-cut pattern for accurate focusing\u003c\/li\u003e\n\u003cli\u003eDesigned for William Optics GT71, Z73, and Star71II refractors\u003c\/li\u003e\n\n\u003cli\u003eAvailable in Gold, Red, and Blue finishes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eWilliam Optics Bahtinov Mask Cover for GT71 \/ Z73 \/ Star71II\u003c\/h2\u003e\n      \u003cp\u003eEnsure every astrophoto taken with your William Optics GT71, Z73, or Star71II \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractor\u003c\/a\u003e starts with perfect focus. This patented Bahtinov Mask Cover replaces your standard dust cap, integrating a precision focusing tool directly into your telescope's protective cover. It’s the simplest, most effective way to achieve critical focus, ensuring you never waste valuable imaging time on soft stars again.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003ePatented Dual-Function Design for GT71, Z73 \u0026amp; Star71II\u003c\/h3\u003e\n      \u003cp\u003eA Bahtinov mask is the most precise tool for achieving sharp focus for astrophotography. By placing this mask over your objective, a bright star displays a distinct three-spike diffraction pattern. Adjusting your \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e until the central spike is perfectly centered between the other two guarantees you’ve nailed critical focus, eliminating guesswork.\u003c\/p\u003e\n      \u003cp\u003eWilliam Optics' innovative design integrates this essential tool into the telescope's primary dust cap. This patented solution means your \u003ca href=\"\/en-int\/collections\/focusing-masks\"\u003efocusing mask\u003c\/a\u003e is always with your telescope, preventing it from being forgotten or lost. Simply leave it on for protection, and you're ready to achieve perfect focus the moment you set up.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePerfect Compatibility:\u003c\/strong\u003e Designed to fit the \u003ca href=\"\/en-int\/collections\/dew-prevention-and-control\"\u003edew shields\u003c\/a\u003e of the \u003ca href=\"\/en-int\/products\/william-optics-gran-turismo-71-apo-triplet\"\u003eWilliam Optics Gran Turismo 71\u003c\/a\u003e, Zenithstar 73, and Star71 II refractors.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eColor Options:\u003c\/strong\u003e Available in your choice of Gold, Red, or Blue to match your William Optics hardware.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eInstant Focus Confirmation:\u003c\/strong\u003e Provides clear, unambiguous visual feedback for achieving perfect focus through your camera's live view screen.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the William Optics Bahtinov Mask Cover to focus my GT71 on a star like Vega?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eSimply place the Bahtinov Mask Cover over the end of your GT71's dew shield, point the telescope at a bright star like Vega (Alpha Lyrae), and view the star on your camera's live view screen. You will see a pattern of three diffraction spikes. Adjust your focuser until the central spike is perfectly symmetrical and centered between the two outer spikes. Once centered, your focus is perfect.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this mask help me achieve sharp focus for nebula imaging with my Z73 refractor?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAbsolutely. For nebula imaging, achieving critical focus on the surrounding stars is essential. Before you slew to your target nebula, use the William Optics Bahtinov Mask Cover on a nearby bright star to set your focus. This ensures your stars are as tight as possible, resulting in a much sharper final image of the nebula.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main advantage of having the Bahtinov mask built into the lens cover?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe primary advantage is convenience and availability. A separate Bahtinov mask can be easily forgotten, misplaced, or damaged. By integrating it into the \u003ca href=\"\/en-int\/collections\/cases-and-covers\"\u003edust cover\u003c\/a\u003e, William Optics ensures this critical focusing tool is always with your telescope, protected and ready for use whenever you are.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the William Optics Bahtinov Mask Cover compatible with any other telescopes?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, this model is specifically designed for the dew shield diameters of the \u003cstrong\u003eWilliam Optics GT71\u003c\/strong\u003e, \u003cstrong\u003eZ73\u003c\/strong\u003e, and \u003cstrong\u003eStar71II\u003c\/strong\u003e refractors. It will not provide a secure fit or proper function on other telescopes.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat am I looking for in the diffraction pattern when using this Bahtinov mask?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYou are looking for perfect symmetry. When out of focus, the central diffraction spike will be shifted to one side of the \"X\" pattern. As you adjust the focuser, this central spike moves. Perfect focus is achieved at the exact point where the central spike is positioned perfectly in the middle of the \"X,\" creating a star-like, six-pointed pattern.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the color of the William Optics Bahtinov Mask Cover affect its performance?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, the color (Gold, Red, or Blue) is purely cosmetic. The finish is designed to match the aesthetic of William Optics telescopes and accessories. The performance of the Bahtinov mask pattern is identical across all color options.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eWilliam Optics GT71, Z73, Star71II\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eFocusing Mask and Dust Cover\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eAvailable Options\u003c\/td\u003e\n\u003ctd\u003eGold, Blue, Red\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003eWilliam Optics Bahtinov Mask Cover\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Gold","offer_id":44967218315549,"sku":"WO-CPBM-71GD","price":155.0,"currency_code":"CAD","in_stock":true},{"title":"Blue","offer_id":44967218348317,"sku":"WO-CPBM-71BU","price":140.0,"currency_code":"CAD","in_stock":true},{"title":"Red","offer_id":44967218381085,"sku":"WO-CPBM-71RD","price":155.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-Bahtinov-Mask-Cover-for-WO-70-Series-Telescopes-CPBM-71-1__68564.1596133230.1280.1280.jpg?v=1684339261"},{"product_id":"william-optics-bahtinov-mask-cover-for-gt81-z81","title":"William Optics Bahtinov Mask Cover for GT81 \/ Z81","description":"\u003cul\u003e\n\t\u003cli\u003eBahtinov mask cover for William Optics GT81 and Z81 telescopes\u003c\/li\u003e\n\t\u003cli\u003eEnhances focusing accuracy for astrophotography\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\t\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\t\u003cli class=\"active\"\u003e\n\t\t\u003cp\u003e\nThe William Optics \u003ca href=\"\/en-int\/collections\/focusing-masks\"\u003eBahtinov Mask\u003c\/a\u003e Cover is an essential accessory for precise focusing in astrophotography. Designed to fit the William Optics GT81 and Z81 telescopes, this Bahtinov mask cover ensures accurate focus for your celestial observations and imaging.\n\t\t\u003c\/p\u003e\n\t\t\u003cdiv class=\"warning\"\u003e\n\t\t\t\u003cimg alt=\"Disclaimer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/warning-logo.svg?v=1714663206\" width=\"25px\"\u003e\n\t\t\t\u003cp\u003e\nSpecifically designed for the William Optics GT81 and Z81 telescopes.\n\t\t\t\u003c\/p\u003e\n\t\t\u003c\/div\u003e\n\t\t\n\t\t\u003cdiv\u003e\n\t\t\t\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\t\t\t\u003chr\u003e\n\t\t\t\u003cdiv class=\"two-columns-section\"\u003e\n\t\t\t\t\u003cdiv class=\"text-side-2\"\u003e\n\t\t\t\t\t\u003cp\u003e\nThe Bahtinov mask cover is custom-made to fit William Optics GT81 and Z81 telescopes, ensuring a secure fit and optimal performance.\n\t\t\t\t\t\u003c\/p\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\u003cdiv class=\"image-side-2\" data-mce-style=\"text-align: start;\" style=\"text-align: start;\"\u003e\n\t\t\t\t\t\u003cimg alt=\"William Optics Bahtinov Mask Cover for GT81 \/ Z81\" src=\"https:\/\/davidastro.com\/cdn\/shop\/products\/William-Optics-Bahtinov-Mask-Cover-for-WO-81-Series-Telescopes-CPBM-81-1__39346.1596133231.1280.1280_832x832.jpg?v=1684339269\" style=\"margin-bottom: 16px; float: none;\"\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\u003c\/div\u003e\n\n\t\t\t\u003cdiv data-mce-style=\"backgroundcolor: #0a0001; border-radius: 5px;\" style=\"background-color: #0a0001; border-radius: 5px;\"\u003e\n\t\t\t\t\u003ch3 style=\"color: white!important;\"\u003eEnhanced Focusing Accuracy\u003c\/h3\u003e\n\t\t\t\t\u003chr\u003e\n\t\t\t\t\u003cdiv class=\"two-columns-section\"\u003e\n\t\t\t\t\t\u003cdiv class=\"image-side-2\" data-mce-style=\"text-align: start;\" style=\"text-align: start;\"\u003e\n\t\t\t\t\t\t\u003cimg alt=\"William Optics Bahtinov Mask Cover for GT81 \/ Z81\" src=\"https:\/\/davidastro.com\/cdn\/shop\/products\/William-Optics-Bahtinov-Mask-Cover-for-WO-81-Series-Telescopes-CPBM-81-2__20318.1596133231.1280.1280_832x832.jpg?v=1684339269\" style=\"margin-bottom: 16px; float: none;\"\u003e\n\t\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\t\u003cdiv class=\"text-side-2\"\u003e\n\t\t\t\t\t\t\u003cp style=\"color: white!important;\"\u003e\nThe Bahtinov mask pattern allows for precise focusing by creating diffraction spikes when viewing a bright star, making it easy to achieve perfect focus for astrophotography.\n\t\t\t\t\t\t\u003c\/p\u003e\n\t\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\u003c\/div\u003e\n\t\t\u003c\/div\u003e\n\n\t\t\u003ch3\u003eDurable Construction\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nMade from high-quality materials, the Bahtinov mask cover is built to withstand regular use and provides long-lasting durability.\n\t\t\u003c\/p\u003e\n\t\t\n\t\t\u003ch3\u003ePrecision Engineering\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nEngineered for a perfect fit on the GT81 and Z81 telescopes, the Bahtinov mask cover ensures stability and accuracy during focusing.\n\t\t\u003c\/p\u003e\n\n\t\t\u003ch3\u003eEase of Use\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nThe Bahtinov mask cover is easy to attach and remove, making it convenient for quick adjustments in the field.\n\t\t\u003c\/p\u003e\n\n\t\t\u003ch3\u003eVersatility\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nIdeal for both beginner and experienced astrophotographers, the Bahtinov mask cover is an essential tool for achieving sharp, detailed images of celestial objects.\n\t\t\u003c\/p\u003e\n\t\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Gold","offer_id":44967218446621,"sku":"WO-CPBM-81GD","price":155.0,"currency_code":"CAD","in_stock":true},{"title":"Blue","offer_id":44967218479389,"sku":"WO-CPBM-81BU","price":155.0,"currency_code":"CAD","in_stock":true},{"title":"Red","offer_id":44967218512157,"sku":"WO-CPBM-81RD","price":155.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-Bahtinov-Mask-Cover-for-WO-81-Series-Telescopes-CPBM-81-1__39346.1596133231.1280.1280.jpg?v=1684339269"},{"product_id":"william-optics-bahtinov-mask-cover-for-takahashi-fsq106","title":"William Optics Bahtinov Mask Cover for Takahashi FSQ106","description":"\u003cul\u003e\n\t\u003cli\u003eBahtinov mask cover for Takahashi FSQ106 telescope\u003c\/li\u003e\n\t\u003cli\u003eEnhances focusing accuracy for astrophotography\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\t\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\t\u003cli class=\"active\"\u003e\n\t\t\u003cp\u003e\nThe William Optics \u003ca href=\"\/en-int\/collections\/focusing-masks\"\u003eBahtinov Mask\u003c\/a\u003e Cover is an essential accessory for precise focusing in astrophotography. Designed to fit the Takahashi FSQ106 telescope, this Bahtinov mask cover ensures accurate focus for your celestial observations and imaging.\n\t\t\u003c\/p\u003e\n\t\t\u003cdiv class=\"warning\"\u003e\n\t\t\t\u003cimg alt=\"Disclaimer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/warning-logo.svg?v=1714663206\" width=\"25px\"\u003e\n\t\t\t\u003cp\u003e\nSpecifically designed for the Takahashi FSQ106 telescope.\n\t\t\t\u003c\/p\u003e\n\t\t\u003c\/div\u003e\n\t\t\n\t\t\u003cdiv\u003e\n\t\t\t\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\t\t\t\u003chr\u003e\n\t\t\t\u003cdiv class=\"two-columns-section\"\u003e\n\t\t\t\t\u003cdiv class=\"text-side-2\"\u003e\n\t\t\t\t\t\u003cp\u003e\nThe Bahtinov mask cover is custom-made to fit the Takahashi FSQ106 telescope, ensuring a secure fit and optimal performance.\n\t\t\t\t\t\u003c\/p\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\u003cdiv class=\"image-side-2\" data-mce-style=\"text-align: start;\" style=\"text-align: start;\"\u003e\n\t\t\t\t\t\u003cimg alt=\"William Optics Bahtinov Mask Cover for Takahashi FSQ106\" src=\"https:\/\/davidastro.com\/cdn\/shop\/products\/William-Optics-Bahtinov-Mask-Cover-for-Takahashi-FSQ106-CPBM-TH106-1__35534.1596133232.1280.1280_832x832.jpg?v=1684339107\" style=\"margin-bottom: 16px; float: none;\"\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\u003c\/div\u003e\n\n\t\t\t\u003cdiv data-mce-style=\"backgroundcolor: #0a0001; border-radius: 5px;\" style=\"background-color: #0a0001; border-radius: 5px;\"\u003e\n\t\t\t\t\u003ch3 style=\"color: white!important;\"\u003eEnhanced Focusing Accuracy\u003c\/h3\u003e\n\t\t\t\t\u003chr\u003e\n\t\t\t\t\u003cdiv class=\"two-columns-section\"\u003e\n\t\t\t\t\t\u003cdiv class=\"image-side-2\" data-mce-style=\"text-align: start;\" style=\"text-align: start;\"\u003e\n\t\t\t\t\t\t\u003cimg alt=\"William Optics Bahtinov Mask Cover for Takahashi FSQ106\" src=\"https:\/\/davidastro.com\/cdn\/shop\/products\/William-Optics-Bahtinov-Mask-Cover-for-Takahashi-FSQ106-CPBM-TH106-2__47935.1596133232.1280.1280_832x832.jpg?v=1684339107\" style=\"margin-bottom: 16px; float: none;\"\u003e\n\t\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\t\u003cdiv class=\"text-side-2\"\u003e\n\t\t\t\t\t\t\u003cp style=\"color: white!important;\"\u003e\nThe Bahtinov mask pattern allows for precise focusing by creating diffraction spikes when viewing a bright star, making it easy to achieve perfect focus for astrophotography.\n\t\t\t\t\t\t\u003c\/p\u003e\n\t\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\u003c\/div\u003e\n\t\t\u003c\/div\u003e\n\n\t\t\u003ch3\u003eDurable Construction\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nMade from high-quality materials, the Bahtinov mask cover is built to withstand regular use and provides long-lasting durability.\n\t\t\u003c\/p\u003e\n\t\t\n\t\t\u003ch3\u003ePrecision Engineering\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nEngineered for a perfect fit on the Takahashi FSQ106 telescope, the Bahtinov mask cover ensures stability and accuracy during focusing.\n\t\t\u003c\/p\u003e\n\n\t\t\u003ch3\u003eEase of Use\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nThe Bahtinov mask cover is easy to attach and remove, making it convenient for quick adjustments in the field.\n\t\t\u003c\/p\u003e\n\n\t\t\u003ch3\u003eVersatility\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nIdeal for both beginner and experienced astrophotographers, the Bahtinov mask cover is an essential tool for achieving sharp, detailed images of celestial objects.\n\t\t\u003c\/p\u003e\n\t\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Blue","offer_id":44967218708765,"sku":"WO-CPBM-TH106BS","price":253.0,"currency_code":"CAD","in_stock":true},{"title":"Red","offer_id":44967218741533,"sku":"WO-CPBM-TH106RS","price":253.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-Bahtinov-Mask-Cover-for-Takahashi-FSQ106-CPBM-TH106-1__35534.1596133232.1280.1280.jpg?v=1684339107"},{"product_id":"william-optics-2x-barlow-nosepiece-for-binoviewer","title":"William Optics 2x Barlow Nosepiece for Binoviewer","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eProvides 2x magnification\u003c\/li\u003e\n\u003cli\u003eEnables binoviewers to reach focus in most telescopes\u003c\/li\u003e\n\u003cli\u003eStandard 1.25\" nosepiece format\u003c\/li\u003e\n\u003cli\u003eThreads directly onto the binoviewer body\u003c\/li\u003e\n\u003cli\u003eSolves insufficient back-focus travel issues\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics 2x Barlow Nosepiece for Binoviewer\u003c\/h2\u003e\n\u003cp\u003eThe William Optics 2x Barlow Nosepiece for Binoviewer is a purpose-built optical corrector designed to solve the single most common obstacle to two-eyed observing: achieving focus. This 1.25\" nosepiece provides the critical 2x optical amplification required to extend your telescope's focal point, allowing it to meet the long light path of a binoviewer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAchieve Focus at 2x: The Essential Binoviewer Accessory\u003c\/h3\u003e\n\u003cp\u003eMany telescopes, particularly \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonians\u003c\/a\u003e and some \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractors\u003c\/a\u003e, lack the necessary inward \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e travel (back focus) to accommodate the long optical path of a binoviewer. This nosepiece acts as a \u003ca href=\"\/en-int\/collections\/barlows-and-extenders\"\u003eBarlow lens\u003c\/a\u003e and optical path corrector, pushing the focal plane outward so your focuser can reach it. The result is a sharp, focused image where one was previously impossible, making this accessory essential for using your binoviewer on a wider range of instruments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e1.25\" Format for Binoviewers\u003c\/h3\u003e\n\u003cp\u003eWilliam Optics sells this 1.25\" 2x Barlow nosepiece as an accessory for binoviewers. It does not state how it mounts, so check the fit with your binoviewer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need a special 2x Barlow Nosepiece for my William Optics binoviewer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA binoviewer has a long optical path due to its internal prisms. Most telescopes don't have enough inward focus travel to compensate, meaning you can't achieve a sharp image. The \u003cstrong\u003eWilliam Optics 2x Barlow Nosepiece\u003c\/strong\u003e extends the telescope's focal point outward, allowing your focuser to reach it. It's an essential corrector for enabling binoviewer use on many telescope designs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this 2x Barlow Nosepiece work with binoviewers from other brands?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile designed for William Optics binoviewers, this 2x Barlow may be compatible with other models that use a standard thread for a removable 1.25\" nosepiece. However, compatibility is not guaranteed, as threading and optical path lengths can vary between manufacturers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will the William Optics 2x Barlow Nosepiece affect views of Jupiter in my 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAn 8\" SCT already has a long focal length, and this 2x Barlow will double it, providing very high magnification. This is ideal for resolving fine details in Jupiter's cloud bands, the Great Red Spot, and transits of its moons. You will need steady atmospheric seeing conditions to take full advantage of the high power.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the 2x Barlow Nosepiece for deep-sky objects like the Hercules Cluster (M13)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, but with a trade-off. The 2x magnification will make the background sky darker and can help resolve individual stars in the core of a bright globular cluster like M13. However, it will also significantly narrow your field of view and dim the image, making it less suitable for large, faint objects like nebulae or galaxies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the only purpose of the William Optics 2x Barlow Nosepiece to reach focus?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary purpose is to enable focus, but it also functions as a quality 2x Barlow lens. By doubling your magnification, it allows you to achieve the high powers necessary for detailed lunar and planetary observation, effectively expanding the utility of your \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepiece\u003c\/a\u003e collection when using the binoviewer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Name\u003c\/td\u003e\n\u003ctd\u003eWilliam Optics 2x Barlow Nosepiece for Binoviewer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification Factor\u003c\/td\u003e\n\u003ctd\u003e2x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection\u003c\/td\u003e\n\u003ctd\u003eDirect thread-on to binoviewer body\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Application\u003c\/td\u003e\n\u003ctd\u003eBinoviewer In-Focus Corrector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics 2x Barlow Nosepiece for Binoviewer\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967219331357,"sku":"WO-E-BINO-B2","price":77.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-2x-Barlow-Nosepiece-for-Binoviewer-E-BINO-B2-1__77251.1596133233.1280.1280.jpg?v=1684339279"},{"product_id":"william-optics-binoviewer-complete-package","title":"William Optics Binoviewer Complete Package","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eIncludes two 20mm 66° wide-angle eyepieces\u003c\/li\u003e\n\u003cli\u003eHigh-quality BaK4 prisms with full multi-coatings\u003c\/li\u003e\n\u003cli\u003eLarge 20mm clear prism aperture prevents vignetting\u003c\/li\u003e\n\u003cli\u003eIncludes 1.6x Barlow nosepiece for easier focusing with most telescopes\u003c\/li\u003e\n\u003cli\u003eIndividual eyepiece focus adjustment\u003c\/li\u003e\n\u003cli\u003eAccepts standard 1.25\" astronomy eyepieces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics Binoviewer Complete Package\u003c\/h2\u003e\n\u003cp\u003eThe William Optics Binoviewer package transforms solo eyepiece viewing into an immersive, two-eyed experience, delivering a matched pair of 20mm wide-angle 66° eyepieces for immediate use. Its optical path is built around high-grade BaK4 prisms with a 20mm clear aperture to maximize brightness and eliminate vignetting. This complete set includes a 1.6x Barlow nosepiece, which extends your telescope's focal point for easier focusing with most telescopes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e20mm BaK4 Prisms: Bright, High-Contrast Binocular Views\u003c\/h3\u003e\n\u003cp\u003eAt the heart of the William Optics Binoviewer are oversized, fully multi-coated BaK4 prisms. The 20mm clear aperture is critical for passing the full light cone from your telescope to both eyes without clipping the edges of the field, a common issue in binoviewers with smaller prisms. This design preserves the brightness and contrast of your telescope, delivering views that are rich in detail and free of false color.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBaK4 Glass:\u003c\/strong\u003e Provides higher refractive index and minimizes internal reflections for a cleaner, higher-contrast image compared to lower-grade prism glass.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully Multi-Coated Optics:\u003c\/strong\u003e Every air-to-glass surface is coated to maximize light transmission, ensuring the view remains bright even after splitting the light path between two eyes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePrecision Mechanics: Individual Focus and Brass Compression Rings\u003c\/h3\u003e\n\u003cp\u003eBuilt for durability and ease of use, the binoviewer body features a white powder-coated finish and large, chromed thumbscrews for easy handling with gloves. Each \u003ca href=\"\/en-int\/collections\/visual-adapters\"\u003eeyepiece holder\u003c\/a\u003e has its own focus adjustment, allowing you to precisely compensate for differences between your eyes to achieve a perfectly merged, sharp image. The 1.25\" holders use non-marring brass compression rings to securely grip your eyepieces without scratching the barrels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA Complete 66° Viewing System with a 1.6x Barlow\u003c\/h3\u003e\n\u003cp\u003eThis is not just a binoviewer body; it's a complete observing system. William Optics includes a matched pair of 20mm wide-angle eyepieces with a 66° apparent field of view, providing an ideal starting point for lunar, planetary, and deep-sky observation. The critical component for many users is the included 1.6x Barlow nosepiece. Most telescopes, especially \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonians\u003c\/a\u003e, lack the back focus required for a binoviewer; this Barlow extends the focal plane outward, making focus easier to reach with most telescopes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the included 1.6x Barlow with the William Optics Binoviewer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e1.6x Barlow\u003c\/strong\u003e is essential for reaching focus in telescopes with limited back focus, such as most Newtonian reflectors and some \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractors\u003c\/a\u003e. Binoviewers require a long light path, and this Barlow pushes the telescope's focal point outward to meet that requirement. It also provides a moderate increase in magnification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use my own 1.25\" eyepieces with the William Optics Binoviewer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The William Optics Binoviewer is compatible with most standard 1.25\" eyepieces. For best results, you should use two identical eyepieces (a matched pair) to ensure a perfectly merged and comfortable view. The brass compression rings will hold them securely without damaging their barrels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need individual eyepiece focus on the WO Binoviewer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIndividual focus adjustment allows you to compensate for differences in vision between your left and right eyes (diopter correction). By focusing each eyepiece separately, you can achieve a single, perfectly sharp image that is comfortable to view for extended periods, reducing eye strain.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will the William Optics Binoviewer perform on the Moon and Jupiter with my 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAn 8\" SCT is an excellent match for this binoviewer. The two-eyed view adds a remarkable sense of depth and dimensionality to lunar craters and mountain ranges. On Jupiter, you'll find it easier to perceive subtle details in the cloud bands and spot the Galilean moons. The included 20mm eyepieces and 1.6x Barlow will provide a high-contrast, comfortable view of both targets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the William Optics Binoviewer reach focus in my 10\" Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, most likely. Most commercial \u003ca href=\"\/en-int\/collections\/dobsonians\"\u003eDobsonian\u003c\/a\u003e (Newtonian) telescopes do not have enough inward \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e travel to reach focus with a binoviewer alone. However, this package includes the \u003cstrong\u003e1.6x Barlow nosepiece\u003c\/strong\u003e specifically to solve this problem. The Barlow nosepiece makes focusing easier with most telescopes, and William Optics offers optional 2x Barlows, correctors and extenders for telescopes with special back-focus issues.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eAre the included 20mm eyepieces good for deep-sky objects like the Orion Nebula (M42)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The 20mm eyepieces provide a moderately low power and a wide 66° field of view, making them excellent for framing larger deep-sky objects like the Orion Nebula (M42), the Andromeda Galaxy (M31), or open clusters like the Pleiades (M45). The \u003ca href=\"\/en-int\/collections\/binoculars\"\u003ebinocular\u003c\/a\u003e view can make these objects appear more three-dimensional against the background sky.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrism Type\u003c\/td\u003e\n\u003ctd\u003eBaK4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrism Clear Aperture\u003c\/td\u003e\n\u003ctd\u003e20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Coatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Compatibility\u003c\/td\u003e\n\u003ctd\u003e1.25\" Barrels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Holders\u003c\/td\u003e\n\u003ctd\u003eBrass Compression Rings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocusing\u003c\/td\u003e\n\u003ctd\u003eIndividual Eyepiece Focus Adjustment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Eyepieces\u003c\/td\u003e\n\u003ctd\u003e2x 20mm Wide Angle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Apparent Field\u003c\/td\u003e\n\u003ctd\u003e66°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Barlow\u003c\/td\u003e\n\u003ctd\u003e1.6x Magnification Nosepiece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eWhite Powder Coat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1.25in binoviewer with anti-marring compression rings\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e20mm Wide Angle (66 deg) eyepieces\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1.6x Barlow nosepiece\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003egift box\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967219364125,"sku":"WO-E-BINO-P","price":484.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/William-Optics-Binoviewer-Complete-Package-E-BINO-P-1__33057.1596133235.1280.1280.jpg?v=1684339281"},{"product_id":"william-optics-adjustable-flat61-for-z61","title":"William Optics Adjustable Flat61 for Z61","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e1.0x Flattener Power\u003c\/li\u003e\n\u003cli\u003eDesigned for William Optics Zenithstar 61\u003c\/li\u003e\n\u003cli\u003eFull-Frame Sensor Coverage\u003c\/li\u003e\n\u003cli\u003eAdjustable Back Focus Mechanism\u003c\/li\u003e\n\u003cli\u003eM54 Telescope Thread \u0026amp; M48 Camera Thread\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics Adjustable Flat61 for Z61\u003c\/h2\u003e\n\u003cp\u003eThe William Optics Adjustable Flat61 is the definitive imaging accessory for the Zenithstar 61, delivering edge-to-edge pinpoint stars on sensors up to full-frame format at a native 1.0x power. Its 2-element, 2-group optical design corrects the field curvature inherent in a fast \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractor\u003c\/a\u003e, connecting to the telescope via a rigid M54 x 0.75 thread and to your camera with a standard M48 x 0.75 T-mount. Weighing just 272.8 g, the unit's optical path consists of the 39.5 mm \u003ca href=\"\/en-int\/collections\/flatteners-and-reducers\"\u003eflattener\u003c\/a\u003e body and a 19 mm \u003ca href=\"\/en-int\/collections\/rotators-and-tilt-adjusters\"\u003erotator\u003c\/a\u003e and adapter section, engineered for precise spacing and image composition.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e1.0x Power for Full-Frame Correction with the Zenithstar 61\u003c\/h3\u003e\n\u003cp\u003eThis flattener corrects field curvature without altering the native focal length or focal ratio of your Z61 telescope. The 1.0x magnification ensures the field of view you framed visually is the same one you capture, preserving the telescope's original optical characteristics. The 2-element in 2-group lens design is optimized specifically for the Z61's optics, providing a flat, corrected image circle large enough to accommodate full-frame (36x24mm) sensors without vignetting or distorted stars at the corners.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eM54 Telescope Connection \u0026amp; M48 Camera Interface\u003c\/h3\u003e\n\u003cp\u003eThe Flat61A attaches to the Z61 \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e using a robust M54 x 0.75 threaded connection, eliminating any potential for tilt or flex that can occur with simple compression fittings. The camera side features the astrophotography standard M48 x 0.75 thread, providing a wide, secure aperture for filters and direct connection to dedicated \u003ca href=\"\/en-int\/collections\/cameras\"\u003eastronomy cameras\u003c\/a\u003e and a broad range of DSLR\/mirrorless T-mounts. The integrated rotator allows you to frame your target perfectly without loosening any threaded connections, maintaining rigid alignment throughout your imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAdjustable Back Focus for Edge-to-Edge Sharpness\u003c\/h3\u003e\n\u003cp\u003eAchieving a perfectly flat field requires precise spacing between the flattener's rear element and the camera sensor. While fixed-length flatteners work well with a specific camera setup, the Adjustable Flat61 acknowledges that \u003ca href=\"\/en-int\/collections\/filter-wheels\"\u003efilter wheels\u003c\/a\u003e, \u003ca href=\"\/en-int\/collections\/autoguiding\"\u003eoff-axis guiders\u003c\/a\u003e, or different \u003ca href=\"\/en-int\/collections\/imaging-adapters\"\u003eT-ring\u003c\/a\u003e thicknesses can alter this critical distance. This unit's key feature is its ability to be fine-tuned, allowing you to dial in the exact back focus required by your unique imaging train to guarantee sharp stars across the entire frame, not just in the center.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the William Optics Adjustable Flat61?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Flat61A is an optical corrector designed specifically for the William Optics Zenithstar 61 refractor. It flattens the curved focal plane of the telescope, ensuring that stars are sharp and pinpoint across the entire field of view, from the center to the corners of your camera sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I connect the Flat61A to my Z61 and camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe flattener connects directly to the Z61 focuser's drawtube via a secure \u003cstrong\u003eM54 x 0.75 thread\u003c\/strong\u003e. The camera side features a standard \u003cstrong\u003eM48 x 0.75 thread\u003c\/strong\u003e, which is compatible with most dedicated astronomy cameras, filter wheels, and T-mounts for DSLR and mirrorless cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is an adjustable flattener like the Flat61A better than a fixed one?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAn adjustable flattener provides the flexibility to achieve perfect back focus with various imaging setups. Different cameras, filter thicknesses, and adapters can slightly change the ideal spacing. The Flat61A allows you to fine-tune this distance, ensuring optimal optical correction regardless of the specific components in your imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Flat61A change the focal length of my Zenithstar 61?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The William Optics Flat61A is a \u003cstrong\u003e1.0x flattener\u003c\/strong\u003e, meaning it does not reduce or extend the telescope's focal length. It corrects for optical aberrations while preserving the Z61's native field of view and f-ratio.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the William Optics Flat61A with a full-frame camera like the Sony A7 series on my Z61?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The Flat61A is explicitly designed to provide a corrected image circle for \u003cstrong\u003eFull Frame\u003c\/strong\u003e sensors. With the appropriate M48 T-mount for Sony E-mount cameras (listed in the supported T-mounts), you can achieve a flat field with your Sony A7 series camera.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Flat61A provide a flat field for imaging the Andromeda Galaxy (M31) with my Z61 and an APS-C camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The flattener is designed for sensors up to full-frame, so it will provide excellent correction for smaller \u003cstrong\u003eAPS-C\u003c\/strong\u003e and \u003cstrong\u003eM4\/3\u003c\/strong\u003e sensors. It will ensure that all the stars across the vast expanse of the Andromeda Galaxy (M31) are rendered as sharp points.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlattener Power\u003c\/td\u003e\n\u003ctd\u003e1.0x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003e2 Elements in 2 Groups\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Format Support\u003c\/td\u003e\n\u003ctd\u003eFull Frame, APS-C, M4\/3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Connection\u003c\/td\u003e\n\u003ctd\u003eM54 x 0.75 x 5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Connection\u003c\/td\u003e\n\u003ctd\u003eM48 x 0.75 x 4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Path Components\u003c\/td\u003e\n\u003ctd\u003eFlattener 39.5 mm + Rotator\/Adapter 19 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported T-Mounts\u003c\/td\u003e\n\u003ctd\u003eCanon EF, RF; Nikon F, Z; Sony E; Pentax K; MFT (M4\/3); FUJI X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e272.8 g (0.60 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage circle\u003c\/td\u003e\n\u003ctd\u003e43 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesigned for\u003c\/td\u003e\n\u003ctd\u003eWilliam Optics ZenithStar 61\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification Factor\u003c\/td\u003e\n\u003ctd\u003e1x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics Adjustable Flat61 for Z61\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967219822877,"sku":"WO-P-FLAT61A","price":365.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/William-Optics-Adjustable-Flat61-for-Z61-P-FLAT61A-1__32465.1596133236.1280.1280.jpg?v=1684339110"},{"product_id":"william-optics-adjustable-reducer-flattener-flat61r-for-z61","title":"William Optics Adjustable Reducer Flattener Flat61R for Z61","description":"\u003cul\u003e\n\t\u003cli\u003eAdjustable reducer and field flattener for William Optics Z61 telescope\u003c\/li\u003e\n\t\u003cli\u003eImproves image sharpness and reduces distortion\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\t\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\t\u003cli class=\"active\"\u003e\n\t\t\u003cp\u003e\nThe William Optics Adjustable \u003ca href=\"\/en-int\/collections\/flatteners-and-reducers\"\u003eReducer Flattener\u003c\/a\u003e Flat61R is an essential accessory for the William Optics Z61 telescope. This adjustable reducer and field flattener enhances image sharpness and reduces distortion, ensuring high-quality astrophotography results.\n\t\t\u003c\/p\u003e\n\t\t\u003cdiv class=\"warning\"\u003e\n\t\t\t\u003cimg alt=\"Disclaimer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/warning-logo.svg?v=1714663206\" width=\"25px\"\u003e\n\t\t\t\u003cp\u003e\nSpecifically designed for the William Optics Z61 telescope.\n\t\t\t\u003c\/p\u003e\n\t\t\u003c\/div\u003e\n\t\t\n\t\t\u003cdiv\u003e\n\t\t\t\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\t\t\t\u003chr\u003e\n\t\t\t\u003cdiv class=\"two-columns-section\"\u003e\n\t\t\t\t\u003cdiv class=\"text-side-2\"\u003e\n\t\t\t\t\t\u003cp\u003e\nThe Flat61R is designed to perfectly fit the William Optics Z61 telescope. It ensures a seamless connection, enhancing the optical performance of your telescope.\n\t\t\t\t\t\u003c\/p\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\u003cdiv class=\"image-side-2\" data-mce-style=\"text-align: start;\" style=\"text-align: start;\"\u003e\n\t\t\t\t\t\u003cimg alt=\"William Optics Adjustable Reducer Flattener Flat61R for Z61\" src=\"https:\/\/davidastro.com\/cdn\/shop\/files\/William-Optics-Adjustable-Reducer-Flattener-Flat61R-for-Z61-P-FLAT61R-2__19145.1596133238.1280.1280_832x832.jpg?v=1684339301\" style=\"margin-bottom: 16px; float: none;\"\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\u003c\/div\u003e\n\n\t\t\t\u003cdiv data-mce-style=\"backgroundcolor: #0a0001; border-radius: 5px;\" style=\"background-color: #0a0001; border-radius: 5px;\"\u003e\n\t\t\t\t\u003ch3 style=\"color: white!important;\"\u003eEnhanced Image Quality\u003c\/h3\u003e\n\t\t\t\t\u003chr\u003e\n\t\t\t\t\u003cdiv class=\"two-columns-section\"\u003e\n\t\t\t\t\t\u003cdiv class=\"image-side-2\" data-mce-style=\"text-align: start;\" style=\"text-align: start;\"\u003e\n\t\t\t\t\t\t\u003cimg alt=\"William Optics Adjustable Reducer Flattener Flat61R for Z61\" src=\"https:\/\/davidastro.com\/cdn\/shop\/files\/William-Optics-Adjustable-Reducer-Flattener-Flat61R-for-Z61-P-FLAT61R-8__83135.1596133238.1280.1280_832x832.jpg?v=1684339311\" style=\"margin-bottom: 16px; float: none;\"\u003e\n\t\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\t\u003cdiv class=\"text-side-2\"\u003e\n\t\t\t\t\t\t\u003cp style=\"color: white!important;\"\u003e\nThe adjustable reducer flattener improves image sharpness across the field, reducing optical aberrations and ensuring crisp, clear images of celestial objects.\n\t\t\t\t\t\t\u003c\/p\u003e\n\t\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\u003c\/div\u003e\n\t\t\u003c\/div\u003e\n\n\t\t\u003ch3\u003eAdjustable Design\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nThe Flat61R features an adjustable design, allowing users to fine-tune the distance to the camera sensor for optimal performance, ensuring perfect star shapes across the entire image.\n\t\t\u003c\/p\u003e\n\t\t\n\t\t\u003ch3\u003eDurable Construction\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nMade from high-quality materials, such as anodized aluminum, the Flat61R is built to last, providing durability and stability for all your astrophotography needs.\n\t\t\u003c\/p\u003e\n\n\t\t\u003ch3\u003ePrecision Engineering\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nThe Flat61R is engineered with precision to ensure a tight and secure fit, minimizing any unwanted movement or vibrations and enhancing overall image quality.\n\t\t\u003c\/p\u003e\n\n\t\t\u003ch3\u003eEase of Use\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nDesigned for easy attachment and detachment, the Flat61R allows users to quickly set up or dismantle their equipment as needed, making it convenient for field use.\n\t\t\u003c\/p\u003e\n\n\t\t\u003ch3\u003eVersatility\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nBuilt for astrophotography with the Z61, the Flat61R provides the necessary optical enhancements for detailed and high-quality imaging.\n\t\t\u003c\/p\u003e\n\t\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967220019485,"sku":"WO-P-FLAT61R","price":389.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/William-Optics-Adjustable-Reducer-Flattener-Flat61R-for-Z61-P-FLAT61R-1__95363.1596133238.1280.1280.jpg?v=1684339299"},{"product_id":"william-optics-flattener-68iii","title":"William Optics Flattener 68III","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e1.0x Flattener Power preserves native focal length\u003c\/li\u003e\n\u003cli\u003eCorrects field curvature for Full Frame sensors\u003c\/li\u003e\n\u003cli\u003eDesigned for William Optics FLT132, GT102, and GT153 refractors\u003c\/li\u003e\n\u003cli\u003eConnects via a robust M92 telescope-side thread\u003c\/li\u003e\n\u003cli\u003eFeatures a standard M48 camera-side thread to prevent vignetting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics Flattener 68III\u003c\/h2\u003e\n\u003cp\u003eThe William Optics Flattener 68III is an essential imaging accessory designed to deliver perfectly flat fields across full-frame sensors without altering your telescope's native focal length. This 1.0x flattener connects directly to the \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e of premier William Optics \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractors\u003c\/a\u003e like the FLT132, GT102, and GT153 via a secure M92 x 1 thread. Its efficient 2-element optical design corrects for field curvature, ensuring pinpoint stars from the center to the corners of your frame, while the M48 camera connection minimizes vignetting for modern DSLR and dedicated \u003ca href=\"\/en-int\/collections\/cameras\"\u003eastronomy cameras\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e1.0x Flattening: Edge-to-Edge Correction for Full-Frame Sensors\u003c\/h3\u003e\n\u003cp\u003eThis flattener is engineered for the imaging purist. With a 1.0x power factor, it maintains your telescope's exact focal length and f-ratio, preserving the original image scale for maximum resolution on planetary and small deep-sky targets. The optical system, comprised of 2 elements in 2 groups, is fully multi-coated to ensure high light transmission and contrast, turning the curved focal plane of a fast refractor into a flat, corrected surface ready for large sensors.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Frame Illumination:\u003c\/strong\u003e The image circle is 44.4mm on the FLT132 and 43.4mm on the FLT91 with back adapter, making it ideal for full-frame (24x36mm), APS-C, and M4\/3 formats.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePinpoint Stars:\u003c\/strong\u003e Eliminates the elongated, comatic stars typically seen at the edges of uncorrected images, producing sharp, round stars across your entire field of view.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreserves Native Scale:\u003c\/strong\u003e Unlike a reducer, this flattener allows you to image at your telescope's maximum magnification and resolution, ideal for detailed studies of galaxies and nebulae.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eM92 Interface: Optimized for William Optics FLT and GT Refractors\u003c\/h3\u003e\n\u003cp\u003eThe Flattener 68III creates a seamless, rigid connection with specific William Optics telescopes. It threads directly onto the M92 drawtube of the FLT132, GT102, and GT153 refractors, ensuring perfect alignment and eliminating any potential for flexure in the imaging train. This robust mechanical design is critical for supporting heavier camera packages.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTelescope Connection:\u003c\/strong\u003e The M92 x 1 thread provides a secure, direct-fit attachment to compatible William Optics focusers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera Connection:\u003c\/strong\u003e A standard M48 x 0.75 thread on the camera side offers a wider aperture than older T2 (M42) threads, preventing vignetting on full-frame sensors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad Camera Support:\u003c\/strong\u003e Compatible with standard M48 T-rings for Canon, Nikon, Sony, Pentax, MFT, and Fuji camera systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 64.5mm Optical Path with Precision Back-Focus Adjustment\u003c\/h3\u003e\n\u003cp\u003eAchieving perfect sensor-to-flattener spacing is critical for optimal correction, and the Flattener 68III is built with this in mind. The unit is adjustable, allowing you to precisely dial in the required back focus for your specific camera and filter setup. This fine-tuning capability ensures you can achieve the sharpest possible stars across the entire field, regardless of minor variations in your imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the primary function of the William Optics Flattener 68III?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Flattener 68III is an optical corrector designed to eliminate field curvature in refractor telescopes. It ensures that stars are sharp and pinpoint not just in the center of the image, but all the way to the corners. As a \u003cstrong\u003e1.0x flattener\u003c\/strong\u003e, it accomplishes this without changing the telescope's native focal length or f-ratio.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich telescopes is the Flattener 68III compatible with?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFlattener 68III back focus settings are available for the \u003ca href=\"\/en-int\/products\/william-optics-fluorostar-91\"\u003eFluorostar 91\u003c\/a\u003e and Gran Turismo 81 (each with a back adapter), \u003ca href=\"\/en-int\/products\/william-optics-fluorostar-120\"\u003eFluorostar 120\u003c\/a\u003e, \u003ca href=\"\/en-int\/products\/william-optics-fluorostar-156\"\u003eFluorostar 156\u003c\/a\u003e and Zenithstar 126, as well as these models:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-int\/products\/william-optics-fluorostar-132\"\u003eFluorostar 132\u003c\/a\u003e (FLT132)\u003c\/li\u003e\n\u003cli\u003eGran Turismo 102 (GT102)\u003c\/li\u003e\n\u003cli\u003eGran Turismo 153 (GT153)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Flattener 68III perform with a full-frame camera like a Sony A7 on the GT102?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt's an excellent match. The Flattener 68III is designed to correct the entire field of a full-frame sensor. When paired with a GT102, you can expect sharp, round stars across the entire 24x36mm sensor of a Sony A7-series camera, with minimal vignetting thanks to the M48 camera connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy should I choose this 1.0x Flattener 68III instead of a reducer\/flattener?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eChoose the 1.0x Flattener 68III when your primary goal is \u003cstrong\u003emaximum image resolution and scale\u003c\/strong\u003e. A \u003ca href=\"\/en-int\/collections\/flatteners-and-reducers\"\u003ereducer\/flattener\u003c\/a\u003e makes your telescope \"faster\" and provides a wider field of view, but it shrinks the image. For detailed work on smaller galaxies or planetary nebulae where every bit of focal length matters, a 1.0x flattener is the superior choice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the \"adjustable\" feature of the Flattener 68III do?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adjustable design allows you to make micro-adjustments to the back focus distance—the spacing between the flattener's rear lens and your camera sensor. This is crucial for achieving perfect corner-to-corner star sharpness, as it lets you compensate for the exact thickness of your adapters, \u003ca href=\"\/en-int\/collections\/filter-wheels\"\u003efilter wheels\u003c\/a\u003e, or \u003ca href=\"\/en-int\/collections\/autoguiding\"\u003eoff-axis guiders\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Flattener 68III work for imaging the full Andromeda Galaxy (M31) with an FLT132?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile the Flattener 68III will provide a perfectly corrected field, an FLT132 at its native focal length may be too magnified to capture the entire Andromeda Galaxy (M31) in a single frame, even with a full-frame sensor. For a target of that size with that telescope, a reducer\/flattener would be a better choice to achieve a wider field of view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e1.0 x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003e2 Elements in 2 Groups\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Sensor Formats\u003c\/td\u003e\n\u003ctd\u003eFull Frame, APS-C, M4\/3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope-Side Thread\u003c\/td\u003e\n\u003ctd\u003eM92 x 1 x 6.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera-Side Thread\u003c\/td\u003e\n\u003ctd\u003eM48 x 0.75 x 4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e64.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Brand Support\u003c\/td\u003e\n\u003ctd\u003eCanon EF, RF, Nikon F, Z, Sony E, Pentax K, MFT (M4\/3), FUJI X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e718.2 g \/ 1.58 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage circle\u003c\/td\u003e\n\u003ctd\u003e44.4 mm (FLT132), 43.4 mm (FLT91 with back extender)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRequired back focus\u003c\/td\u003e\n\u003ctd\u003e62.7 mm (FLT132), 65.7 mm (FLT120), 57.6 mm (FLT156)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesigned for\u003c\/td\u003e\n\u003ctd\u003eFLT132, GT102, GT153, FLT120, FLT156\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics Flattener 68III\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967220117789,"sku":"WO-P-FLAT68III","price":1033.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-Flattener-68III-P-FLAT68III-1__37693.1596133239.1280.1280.jpg?v=1684339133"},{"product_id":"william-optics-adjustable-flat6aiii","title":"William Optics Adjustable Flat6AIII","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e0.8x Focal Reducer \u0026amp; Field Flattener\u003c\/li\u003e\n\u003cli\u003eOptimized for GT71, GT81, Z81 \u0026amp; Z103 Refractors\u003c\/li\u003e\n\u003cli\u003eIlluminates Full-Frame Sensors\u003c\/li\u003e\n\u003cli\u003eAdjustable Back Focus Mechanism\u003c\/li\u003e\n\u003cli\u003eM63 Telescope-Side Thread\u003c\/li\u003e\n\u003cli\u003eM48 Camera-Side Thread with Filter Slot\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eWilliam Optics Adjustable Flat6AIII 0.8x Reducer \u0026amp; Flattener\u003c\/h2\u003e\n      \u003cp\u003eThe William Optics Adjustable Flat6AIII is a 0.8x reducer and \u003ca href=\"\/en-int\/collections\/flatteners-and-reducers\"\u003eflattener\u003c\/a\u003e engineered specifically to convert William Optics GT71, GT81, Z81, and Z103 \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractors\u003c\/a\u003e into flat-field \u003ca href=\"\/en-int\/collections\/astrograph-telescopes\"\u003eastrographs\u003c\/a\u003e. Its 3-element apochromatic optical design uses Ohara glass to correct for field curvature across 97% of a full-frame sensor, connecting directly to the telescope via an M63 thread and to your camera with a standard M48 T-mount.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003e0.8x Reduction and 97% Full-Frame Illumination\u003c\/h3\u003e\n      \u003cp\u003eBy reducing your telescope's focal ratio by a factor of 0.8x, the Flat6AIII significantly shortens required exposure times and expands your field of view. This transforms a GT81 from f\/5.9 to a faster f\/4.7 system, allowing you to capture faint nebulosity in less time and frame larger targets like the Andromeda Galaxy (M31) or the North American Nebula (NGC 7000). The optical design provides excellent illumination and pinpoint stars across 97% of a full-frame sensor's \u003ca href=\"\/en-int\/collections\/diagonals\"\u003ediagonal\u003c\/a\u003e.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eAPO Triplet Optics: A 3-Element Ohara Glass Design\u003c\/h3\u003e\n      \u003cp\u003eThe Flat6AIII employs a 3-element apochromatic (APO) lens design constructed from premium Ohara glass. This triplet configuration, combined with full multi-coatings, ensures high-contrast images free of distracting chromatic aberration. Where simpler flatteners can introduce bloated or discolored stars at the edge of the field, the Flat6AIII maintains sharp, color-pure stars right to the corners of your frame, preserving the optical integrity of your William Optics refractor.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eM63 Direct-Thread Integration for 4 William Optics Refractors\u003c\/h3\u003e\n      \u003cp\u003eThis flattener attaches directly to the \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e drawtube using a robust M63 thread, creating a solid, flex-free imaging train. This direct connection is superior to standard 2\" nosepiece adapters, which can introduce tilt. The body of the Flat6AIII is adjustable to set the precise back focus for your specific telescope, and an integrated M48 filter slot behind the camera threads allows for the easy installation of 2\" filters without adding extra accessories.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhich William Optics telescopes is the Flat6AIII compatible with?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe William Optics Flat6AIII is specifically designed and optimized for four refractors: the \u003cstrong\u003eGT71\u003c\/strong\u003e, \u003cstrong\u003eGT81\u003c\/strong\u003e, \u003cstrong\u003eZ81\u003c\/strong\u003e, and \u003cstrong\u003eZ103\u003c\/strong\u003e. It connects via a direct M63 thread on these models.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 0.8x reduction of the Flat6AIII benefit my imaging with a GT81?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe 0.8x reduction makes your telescope \"faster,\" meaning it gathers light more quickly. On a GT81 (f\/5.9), the Flat6AIII creates an f\/4.7 imaging system. This reduces your required exposure time by about 36%, allowing you to collect more data in a single night. It also provides a wider field of view to better frame large deep-sky objects.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use a full-frame DSLR like a Canon EOS Ra with the Flat6AIII?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. The Flat6AIII is designed to fully illuminate and correct for full-frame sensors up to 44mm. You will need the appropriate M48 \u003ca href=\"\/en-int\/collections\/imaging-adapters\"\u003eT-ring\u003c\/a\u003e for your camera mount (e.g., Canon RF) to connect it to the flattener's M48 threads.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I attach the Flat6AIII to my telescope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe Flat6AIII threads directly onto the focuser. You will first need to unthread and remove the standard 2\" \u003ca href=\"\/en-int\/collections\/visual-adapters\"\u003eeyepiece holder\u003c\/a\u003e from your telescope's focuser. The flattener's M63 threads then screw directly onto the focuser drawtube for a secure, tilt-free connection.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use 2\" filters with the William Optics Flat6AIII?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. The Flat6AIII has an integrated M48 x 0.75 filter thread just inside the camera-side connection. This allows you to thread in any standard 2\" astronomy filter (which uses M48 threads) for light pollution reduction or narrowband imaging.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does \"adjustable back focus\" mean on the Flat6AIII?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe body of the William Optics Flat6AIII can be extended or retracted to fine-tune the distance between the flattener's optics and your camera sensor. Each compatible telescope model requires a slightly different spacing for a perfectly flat field. This adjustability ensures you can achieve optimal optical correction without needing to add or remove spacers.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFlattener Power\u003c\/td\u003e\n\u003ctd\u003e0.8 x\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eLens Design\u003c\/td\u003e\n\u003ctd\u003e3 Groups, 3 Elements\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCamera Format Support\u003c\/td\u003e\n\u003ctd\u003eFull Frame, APS-C, M4\/3\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eTelescope Connection\u003c\/td\u003e\n\u003ctd\u003eM63 x 1 x 6 mm Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCamera Connection\u003c\/td\u003e\n\u003ctd\u003eM48 x 0.75 x 4 mm T-Mount Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCompatible T-Mounts\u003c\/td\u003e\n\u003ctd\u003eCanon EF, RF, Nikon F, Z, Sony E, Pentax K, MFT (M4\/3), FUJI X\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e61.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e519.4 g \/ 1.15 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003eImage circle\u003c\/td\u003e\n\u003ctd\u003e44.4 mm (GT71, GT81), 44.3 mm (Z81), 43.1 mm (Z103)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRequired back focus\u003c\/td\u003e\n\u003ctd\u003e64.1 mm (GT71), 62.1 mm (GT81), 60.2 mm (Z81), 57.5 mm (Z103)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesigned for\u003c\/td\u003e\n\u003ctd\u003eGT71, GT81, Z81, Z103\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification Factor\u003c\/td\u003e\n\u003ctd\u003e0.8x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics Adjustable Flat6AIII\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967221002525,"sku":"WO-P-FLAT6AIII","price":352.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/William-Optics-FLAT6AIII__75538.1675887359.1280.1280.jpg?v=1684339316"},{"product_id":"william-optics-adjustable-flat73a-for-z73","title":"William Optics Adjustable Flat73A for Z73","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned specifically for the William Optics ZenithStar 73 APO\u003c\/li\u003e\n\u003cli\u003eDelivers a 1.0x, perfectly flat field across full-frame sensors\u003c\/li\u003e\n\u003cli\u003eConnects to the Z73 focuser via a secure M63 thread\u003c\/li\u003e\n\u003cli\u003eProvides a standard M48 x 0.75 thread for camera T-rings and accessories\u003c\/li\u003e\n\u003cli\u003eAdjustable design ensures precise back focus for a wide range of cameras\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics Adjustable Flat73A for Z73\u003c\/h2\u003e\n\u003cp\u003eThe William Optics Adjustable Flat73A is the essential imaging accessory for the ZenithStar 73 telescope, engineered to eliminate field curvature across sensors up to full-frame size. This 1.0x \u003ca href=\"\/en-int\/collections\/flatteners-and-reducers\"\u003eflattener\u003c\/a\u003e preserves the Z73's native focal length and f-ratio, connecting securely via its M63 thread and providing a standard M48 output for your camera. The 2-element optical design ensures that stars remain pinpoint sharp from the center of your image to the extreme corners.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFull-Frame Correction at 1.0x Power\u003c\/h3\u003e\n\u003cp\u003eThe Flat73A uses a 2-element optical design in two groups to correct the field curvature inherent in the Z73's fast, wide-field optics. As a 1.0x flattener, it does not act as a reducer or extender, so your telescope's focal length and focal ratio remain unchanged. This design is optimized to illuminate and correct for sensors up to a full-frame format, making it ideal for DSLRs, mirrorless cameras, and large-chip dedicated \u003ca href=\"\/en-int\/collections\/cameras\"\u003eastronomy cameras\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eZ73-Specific M63 Thread and M48 Camera Connection\u003c\/h3\u003e\n\u003cp\u003eDesigned for seamless integration, the Flat73A attaches directly to the ZenithStar 73's \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e drawtube using a robust M63 x 1 thread, ensuring a rigid, tilt-free connection. The camera side features the astrophotography standard M48 x 0.75 male thread, allowing you to connect a wide array of cameras from Canon, Nikon, Sony, Fuji, and more using a standard M48 \u003ca href=\"\/en-int\/collections\/imaging-adapters\"\u003eT-ring\u003c\/a\u003e. The adjustable nature of the flattener is critical for achieving the precise sensor-to-flattener distance required for a perfectly flat field with different camera models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does \"1.0x power\" mean for the William Optics Flat73A?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA \u003cstrong\u003e1.0x flattener\u003c\/strong\u003e corrects for field curvature without changing the focal length or f-ratio of your telescope. With the Flat73A, your ZenithStar 73 will operate at its native focal length, producing images with the same scale and field of view as it would without the flattener, but with the benefit of sharp stars across the entire frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Flat73A flattener with a telescope other than the Z73?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the Flat73A is optically and mechanically designed specifically for the William Optics ZenithStar 73. It uses an M63 x 1 thread to attach to the Z73's focuser and its optical prescription is matched to that telescope's specific objective lens.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the maximum sensor size the Flat73A can illuminate and correct?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe William Optics Flat73A is designed to provide a corrected, unvignetted image circle for camera sensors up to \u003cstrong\u003efull-frame\u003c\/strong\u003e size. It is also perfectly suitable for smaller APS-C and Micro Four Thirds sensors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I connect my Nikon Z mirrorless camera to the Flat73A?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou will need an M48 T-ring specifically made for the Nikon Z-mount. The Flat73A provides the standard \u003cstrong\u003eM48 x 0.75 male thread\u003c\/strong\u003e that the T-ring will attach to. The adjustable mechanism on the flattener then allows you to set the correct distance to your camera's sensor for optimal correction.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will the Flat73A improve my images of the North American Nebula (NGC 7000) with a Z73?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ZenithStar 73 provides a wide field of view perfect for large targets like the North American Nebula (NGC 7000). However, without correction, stars at the edges of such a large object will appear elongated or out of focus. The Flat73A corrects this distortion, ensuring that every star across the vast nebula complex is rendered as a sharp, round point, resulting in a much cleaner and more professional final image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Flat73A necessary if I'm only using an APS-C camera with my Z73?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. While an APS-C sensor is smaller than full-frame, the field curvature of the Z73 is still significant enough to be visible on an APS-C chip. Using the Flat73A will provide a noticeably flatter field, which is critical for accurate guiding, clean image stacking, and producing high-quality images where the corner performance matches the center.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlattener Power\u003c\/td\u003e\n\u003ctd\u003e1.0 x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003e2 elements in 2 groups\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Camera Formats\u003c\/td\u003e\n\u003ctd\u003eFull Frame, APS-C, M4\/3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Connection\u003c\/td\u003e\n\u003ctd\u003eM63 x 1 x 6 mm thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Connection\u003c\/td\u003e\n\u003ctd\u003eM48 x 0.75 x 4 mm thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported T-Mounts\u003c\/td\u003e\n\u003ctd\u003eCanon EF, RF, Nikon F, Z, Sony E, Pentax K, MFT (M4\/3), FUJI X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Optical Length\u003c\/td\u003e\n\u003ctd\u003e65.5 mm (Flattener 39.5 mm + Rotator\/Adapter 26 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e328.8 g \/ 0.72 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRequired back focus\u003c\/td\u003e\n\u003ctd\u003e66.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage circle\u003c\/td\u003e\n\u003ctd\u003e43 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesigned for\u003c\/td\u003e\n\u003ctd\u003eWilliam Optics ZenithStar 73\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification Factor\u003c\/td\u003e\n\u003ctd\u003e1x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics Adjustable Flat73A for Z73\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967221657885,"sku":"WO-P-FLAT73A","price":365.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/WO-P-FLAT73A-1.jpg?v=1722098931"},{"product_id":"william-optics-adjustable-reducer-flattener-flat73r-for-z73","title":"William Optics Adjustable Reducer Flattener Flat73R for Z73","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eReduces focal length by a factor of 0.8x\u003c\/li\u003e\n\u003cli\u003eDesigned for the William Optics Zenithstar 73 telescope\u003c\/li\u003e\n\u003cli\u003eProvides edge-to-edge flat field for full-frame sensors\u003c\/li\u003e\n\u003cli\u003eConnects via a secure M63 x 1 thread\u003c\/li\u003e\n\u003cli\u003eFeatures a standard M48 x 0.75 camera thread\u003c\/li\u003e\n\u003cli\u003eIntegrated camera rotator for easy framing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics Adjustable Reducer Flattener Flat73R for Z73\u003c\/h2\u003e\n\u003cp\u003eThe William Optics Adjustable \u003ca href=\"\/en-int\/collections\/flatteners-and-reducers\"\u003eReducer Flattener\u003c\/a\u003e Flat73R is engineered specifically to transform the Zenithstar 73 \u003ca href=\"\/en-int\/collections\/apochromatic-refractors\"\u003eAPO refractor\u003c\/a\u003e into a wide-field \u003ca href=\"\/en-int\/collections\/astrograph-telescopes\"\u003eastrograph\u003c\/a\u003e. Its 3-element, 3-group optical design delivers a 0.8x focal reduction, correcting for field curvature across full-frame sensors. The unit attaches via a robust M63 x 1 thread and presents a standard M48 x 0.75 T-mount to your camera, all while weighing just 573.9 g.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e0.8x Focal Reduction: A Wider, Faster Field for the Z73\u003c\/h3\u003e\n\u003cp\u003eThe core function of the Flat73R is its 0.8x reduction factor, which shortens the Z73's focal length for a significantly wider true field of view. This allows you to capture large targets like the Andromeda Galaxy (M31) or the entire Veil Nebula complex in a single frame. This reduction also concentrates incoming light, drastically shortening required exposure times and increasing your signal-to-noise ratio on faint deep-sky objects.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-Element, 3-Group Optics:\u003c\/strong\u003e This sophisticated design ensures high-contrast, sharp stars across the entire image circle, correcting for aberrations introduced by the reduction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull-Frame Illumination:\u003c\/strong\u003e The optics are designed to fully illuminate and flatten the field for sensors up to full-frame (36x24mm) format, preventing vignetting and distorted stars in the corners of your images.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eEngineered for the Z73: M63 Threads and an 89mm Optical Length\u003c\/h3\u003e\n\u003cp\u003eThe Flat73R provides a mechanically rigid connection to the Zenithstar 73. It threads directly onto the \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e's M63 x 1 thread, eliminating any potential for sag or flexure that can occur with compression fittings, especially with the added weight of a \u003ca href=\"\/en-int\/collections\/filter-wheels\"\u003efilter wheel\u003c\/a\u003e and camera. The total optical length is 89 mm, composed of the 49 mm flattener body and a 40 mm \u003ca href=\"\/en-int\/collections\/rotators-and-tilt-adjusters\"\u003erotator\u003c\/a\u003e and adapter assembly that allows for precise framing of your target without loosening the camera.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure M63 Connection:\u003c\/strong\u003e Ensures perfect optical alignment and stability throughout an imaging session.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard M48 x 0.75 Camera Thread:\u003c\/strong\u003e Provides a wide, non-vignetting connection compatible with modern DSLR\/mirrorless \u003ca href=\"\/en-int\/collections\/imaging-adapters\"\u003eT-rings\u003c\/a\u003e and dedicated \u003ca href=\"\/en-int\/collections\/cameras\"\u003eastronomy cameras\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Rotator:\u003c\/strong\u003e The 40 mm adapter section includes a camera rotator, an essential feature for composing your shot without having to unthread your imaging train.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eZ73 Native vs. Reduced: What 0.8x Means for Your Images\u003c\/h3\u003e\n\u003cp\u003eWithout a corrector, the Z73 is a superb visual instrument, but for imaging, field curvature will soften stars at the edge of the frame. The Flat73R not only corrects this but fundamentally changes the telescope's imaging characteristics.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWider Field of View:\u003c\/strong\u003e The 0.8x reduction allows you to fit larger celestial objects into your frame compared to imaging at the native focal length. This is critical for large nebulae and nearby galaxies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFaster Imaging:\u003c\/strong\u003e By reducing the focal ratio, the Flat73R gathers the same amount of light in a shorter time. An object that requires a 10-minute exposure at the native focal length can be captured with similar signal in just over 6 minutes, allowing you to gather more data in a single night.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrade-off:\u003c\/strong\u003e The primary trade-off is a slight reduction in image scale. For smaller targets like most galaxies or planetary nebulae, imaging at the native focal length (with a flattener-only accessory) will yield a larger, more detailed image.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the William Optics Flat73R do for my Z73 telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Flat73R is a dual-purpose optical accessory. It acts as a \u003cstrong\u003efield flattener\u003c\/strong\u003e to correct the natural curvature of the focal plane, ensuring sharp, point-like stars across your entire sensor, especially large full-frame chips. It also acts as a \u003cstrong\u003e0.8x focal reducer\u003c\/strong\u003e, which widens your field of view and makes the telescope \"faster,\" reducing your exposure times.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Flat73R compatible with my full-frame camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The William Optics Flat73R is designed to provide excellent correction and illumination for camera sensors up to and including the \u003cstrong\u003efull-frame (36x24mm)\u003c\/strong\u003e format. It provides a standard M48 x 0.75 thread for connection, which is ideal for minimizing vignetting with large sensors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I attach my camera to the Flat73R reducer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou attach your camera via the Flat73R's \u003cstrong\u003eM48 x 0.75 T-mount thread\u003c\/strong\u003e. You will need an M48 T-ring specific to your camera's mount (e.g., Canon EF, Nikon F, Sony E). This provides a secure, threaded connection for your imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Flat73R's weight of 573.9 g affect my Z73's balance?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, adding the \u003cstrong\u003e573.9 g (1.27 lbs)\u003c\/strong\u003e of the reducer, plus your camera and any other accessories, will require you to rebalance your telescope on the mount. The Z73's focuser is robust enough to handle the load, but proper balance in both RA and Dec is critical for accurate tracking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I frame the entire North American Nebula (NGC 7000) with the Z73 and Flat73R?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The wide field of view provided by the 0.8x reduction is ideal for very large targets like the North American Nebula (NGC 7000) and the nearby Pelican Nebula (IC 5070). With most APS-C and full-frame cameras, you should be able to capture the entire nebula complex in a single frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy would I use the Z73 without the Flat73R reducer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile the Flat73R is essential for wide-field imaging, you would remove it for visual observation with an \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepiece\u003c\/a\u003e. For imaging smaller targets like the Whirlpool Galaxy (M51) or the Ring Nebula (M57), you might prefer to use a 1.0x flattener (sold separately) to maintain the telescope's native focal length for a larger image scale and more detail on the object.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eReducer Power\u003c\/td\u003e\n\u003ctd\u003e0.8x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003e3 Elements in 3 Groups\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003eFlattener 49 mm + Rotator\/Adapter 40 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Connection\u003c\/td\u003e\n\u003ctd\u003eM63 x 1 (7 mm length)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Connection\u003c\/td\u003e\n\u003ctd\u003eM48 x 0.75 (4 mm length)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Coverage\u003c\/td\u003e\n\u003ctd\u003eFull Frame, APS-C, M4\/3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Mount Support\u003c\/td\u003e\n\u003ctd\u003eCanon EF, RF, Nikon F, Z, Sony E, Pentax K, MFT (M4\/3), FUJI X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e573.9 g \/ 1.27 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRequired back focus\u003c\/td\u003e\n\u003ctd\u003e56.8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesigned for\u003c\/td\u003e\n\u003ctd\u003eWilliam Optics ZenithStar 73\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification Factor\u003c\/td\u003e\n\u003ctd\u003e0.8x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics Adjustable Reducer Flattener Flat73R for Z73\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967221788957,"sku":"WO-P-FLAT73R","price":389.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/William-Optics-Adjustable-Reducer-Flattener-Flat73R-for-Z73-P-FLAT73R-1__40133.1596133243.1280.1280.jpg?v=1684339331"},{"product_id":"william-optics-x0-8-reducer-flattener-7a","title":"William Optics x0.8 Reducer Flattener 7A","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eReduces focal ratio by a factor of 0.8x\u003c\/li\u003e\n\u003cli\u003eTriplet lens design with 3 elements in 3 groups\u003c\/li\u003e\n\u003cli\u003eCorrects field curvature for full-frame sensors\u003c\/li\u003e\n\u003cli\u003eDesigned for specific William Optics refractors, including the FLT132, FLT156, GT102 and GT153\u003c\/li\u003e\n\u003cli\u003eStandard M48 x 0.75 camera connection thread\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics x0.8 Reducer Flattener 7A\u003c\/h2\u003e\n\u003cp\u003eThe William Optics x0.8 \u003ca href=\"\/en-int\/collections\/flatteners-and-reducers\"\u003eReducer Flattener\u003c\/a\u003e 7A is an essential optical corrector engineered to convert select William Optics \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractors\u003c\/a\u003e into fast, wide-field \u003ca href=\"\/en-int\/collections\/astrograph-telescopes\"\u003eastrographs\u003c\/a\u003e. This unit reduces your telescope's focal length by a factor of 0.8x while its 3-element, 3-group triplet lens design delivers a perfectly flat field for full-frame camera sensors. It attaches via a robust M92 x 1 thread and has an optical length of 59.5 mm, with a back focus that depends on the telescope (69.24 mm on the FLT132).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eTriplet APO Optics: 0.8x Reduction for Full-Frame Sensors\u003c\/h3\u003e\n\u003cp\u003eThis corrector uses a three-element apochromatic lens structure to achieve its optical goals without introducing chromatic aberration. The 0.8x reduction factor effectively shortens your telescope's focal length, which provides a wider true field of view and reduces exposure times by nearly 40%. The flattener component corrects for the field curvature inherent in refractor optics, ensuring that stars in the corners of your full-frame or APS-C sensor are as sharp as those in the center.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eM92 Connection: Dedicated Fit for Specific William Optics Refractors\u003c\/h3\u003e\n\u003cp\u003eThe Flattener 7A is not a universal accessory; it is optically matched to specific William Optics telescopes to ensure optimal correction. It connects directly to the \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e drawtube using a secure M92 x 1 male thread. Back focus settings are available for the Gran Turismo 102 (must have a 3\" focuser), Gran Turismo 153, \u003ca href=\"\/en-int\/products\/william-optics-fluorostar-132\"\u003eFluorostar 132\u003c\/a\u003e, \u003ca href=\"\/en-int\/products\/william-optics-fluorostar-156\"\u003eFluorostar 156\u003c\/a\u003e, \u003ca href=\"\/en-int\/products\/william-optics-fluorostar-120\"\u003eFluorostar 120\u003c\/a\u003e (with back adapter) and Zenithstar 126. This dedicated design guarantees that the flattener's corrective power is perfectly aligned with the optical characteristics of these premium refractors.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera Interface:\u003c\/strong\u003e The camera side features a standard M48 x 0.75 thread, providing a wide, unvignetted connection for \u003ca href=\"\/en-int\/collections\/filter-wheels\"\u003efilter wheels\u003c\/a\u003e, \u003ca href=\"\/en-int\/collections\/autoguiding\"\u003eoff-axis guiders\u003c\/a\u003e, and full-frame camera \u003ca href=\"\/en-int\/collections\/imaging-adapters\"\u003eT-rings\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBack Focus:\u003c\/strong\u003e The back focus depends on the telescope: 69.24 mm on the FLT132 and 65.3 mm on the FLT156, set with the adjustable back adapter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e At 888.4 g (1.96 lbs), it is a substantial optical element that requires a robust focuser to maintain collimation and prevent sag.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the William Optics Flattener 7A work with my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis flattener is designed for a specific set of telescopes and will not work correctly with others. It is made for the GT102 (with 3\" focuser), GT153, FLT132, FLT156, FLT120 (with back adapter) and Zenithstar 126. It connects via an M92 x 1 thread.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the required back focus for the Flattener 7A?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe required back focus depends on the telescope: 69.24 mm for the FLT132 and 65.3 mm for the FLT156. Set it with the flattener's adjustable back adapter, then fine-tune with test shots.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 0.8x reduction affect my FLT132's imaging speed?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe FLT132 has a native focal ratio of f\/7.0. With the 0.8x reducer, the effective focal ratio becomes approximately f\/5.6. This \"faster\" system gathers light more quickly, allowing you to capture the same amount of signal on a target like the Heart Nebula (IC 1805) in significantly shorter exposure times.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use my full-frame camera with the William Optics Flattener 7A?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the Flattener 7A is designed to fully illuminate and correct for full-frame sensors (24x36mm format). It also works perfectly with smaller APS-C and M4\/3 sensors. The camera connects via a standard M48 x 0.75 T-ring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Flattener 7A suitable for imaging the Andromeda Galaxy (M31) with a GT153?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The GT153 is a long focal length instrument. The 0.8x reduction provided by the Flattener 7A creates a wider field of view, making it much easier to frame large targets like the Andromeda Galaxy (M31) or the North American Nebula (NGC 7000) in their entirety.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the \"3 Groups 3 Elements\" lens type mean for the Flattener 7A?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis refers to its optical design, which is a \u003cstrong\u003eTriplet\u003c\/strong\u003e. It uses three individual lens elements arranged in three groups. This sophisticated design allows it to reduce the focal length and flatten the field while maintaining excellent color correction (apochromatic performance), preventing bloated or blue-fringed stars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlattener Power\u003c\/td\u003e\n\u003ctd\u003e0.8x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Design\u003c\/td\u003e\n\u003ctd\u003e3 Elements in 3 Groups (Triplet)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Camera Formats\u003c\/td\u003e\n\u003ctd\u003eFull Frame, APS-C, M4\/3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Connection\u003c\/td\u003e\n\u003ctd\u003eM92 x 1 x 6.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Connection\u003c\/td\u003e\n\u003ctd\u003eM48 x 0.75 x 4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e59.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported T-Mounts\u003c\/td\u003e\n\u003ctd\u003eCanon EF, RF, Nikon F, Z, Sony E, Pentax K, MFT (M4\/3), FUJI X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e888.4 g \/ 1.96 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRequired back focus\u003c\/td\u003e\n\u003ctd\u003e69.24 mm (FLT132), 65.3 mm (FLT156)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage circle\u003c\/td\u003e\n\u003ctd\u003e44.4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesigned for\u003c\/td\u003e\n\u003ctd\u003eFLT120 (with back adapter), FLT132, FLT156, GT102, GT153, ZS126\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification Factor\u003c\/td\u003e\n\u003ctd\u003e0.8x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics x0.8 Reducer Flattener 7A\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967223623965,"sku":"WO-P-FLAT7A","price":1033.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-x0-8-Reducer-Flattener-7A-P-FLAT7A-1__75973.1596133243.1280.1280.jpg?v=1684339155"},{"product_id":"william-optics-wo-x0-72-reducer-flattener-8","title":"William Optics WO x0.72 Reducer Flattener 8","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eReduces focal ratio by a factor of 0.72x\u003c\/li\u003e\n\u003cli\u003eCorrects field curvature for full-frame sensors\u003c\/li\u003e\n\u003cli\u003e3-element, 3-group optical design\u003c\/li\u003e\n\u003cli\u003eConnects to telescope via M92 x 1 thread\u003c\/li\u003e\n\u003cli\u003eStandard M48 x 0.75 camera-side threading\u003c\/li\u003e\n\u003cli\u003eWeighs 1098 g (2.42 lbs)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics WO x0.72 Reducer Flattener 8\u003c\/h2\u003e\n\u003cp\u003eThe William Optics WO x0.72 Reducer Flattener 8 is engineered to transform high-focal-length William Optics \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractors\u003c\/a\u003e into faster, wide-field \u003ca href=\"\/en-int\/collections\/astrograph-telescopes\"\u003eastrographs\u003c\/a\u003e capable of illuminating full-frame sensors. Its 3-element, 3-group design provides a 0.72x focal reduction, significantly decreasing exposure times while correcting for field curvature from edge to edge. This unit connects to the telescope \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e via a robust M92 x 1 thread and provides a standard M48 x 0.75 thread for direct attachment to modern DSLR and dedicated \u003ca href=\"\/en-int\/collections\/cameras\"\u003eastronomy cameras\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA Faster, Wider Field: 0.72x Reduction for Large Refractors\u003c\/h3\u003e\n\u003cp\u003eThe primary function of the Flattener 8 is to reduce your telescope's effective focal length by a factor of 0.72x. For an f\/7 refractor, this transforms the optical system into a faster f\/5.04 instrument, cutting required exposure times by nearly 50%. This speed advantage allows you to capture more data on faint targets in a single night and increases the field of view to frame large objects like the Andromeda Galaxy (M31) or the North American Nebula (NGC 7000).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eEdge-to-Edge Correction: Full-Frame Illumination with a 3-Element Design\u003c\/h3\u003e\n\u003cp\u003eDesigned specifically for large-aperture refractors, the Flattener 8 provides a corrected image circle that fully supports full-frame (36x24mm) camera sensors. The 3-element optical system in 3 groups is optimized to eliminate field curvature and minimize off-axis aberrations, ensuring that stars remain tight, pinpoint sources across the entire frame. This avoids the bloated, comatic stars in the corners that are common in uncorrected systems, delivering professional-grade astrophotography results.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eRobust Integration: M92 Telescope Thread and M48 Camera Support\u003c\/h3\u003e\n\u003cp\u003eThe Flattener 8 is built for a secure, flex-free imaging train. It attaches to compatible William Optics focusers using a large M92 x 1 male thread for a rigid connection. On the camera side, it terminates in a standard M48 x 0.75 male thread, the ideal interface for connecting \u003ca href=\"\/en-int\/collections\/filter-wheels\"\u003efilter wheels\u003c\/a\u003e, \u003ca href=\"\/en-int\/collections\/autoguiding\"\u003eoff-axis guiders\u003c\/a\u003e, and a wide range of camera-specific \u003ca href=\"\/en-int\/collections\/imaging-adapters\"\u003eT-rings\u003c\/a\u003e. At 1098 g (2.42 lbs), its solid construction ensures optical alignment is maintained, though it requires a robust focuser to handle the load.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich William Optics telescopes are compatible with the Flattener 8?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Flattener 8 is designed for William Optics' larger refractors that feature a focuser with a female M92 x 1 thread. It is made for the \u003ca href=\"\/en-int\/products\/william-optics-fluorostar-132\"\u003eFluorostar 132\u003c\/a\u003e (FLT132), \u003ca href=\"\/en-int\/products\/william-optics-fluorostar-156\"\u003eFluorostar 156\u003c\/a\u003e (FLT156), Gran Turismo 102 (GT102) and Gran Turismo 153 (GT153). Always confirm your telescope's focuser thread before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the WO Flattener 8 provide a fully corrected field for a full-frame sensor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is explicitly designed to provide excellent correction and illumination for \u003cstrong\u003efull-frame sensors (36x24mm)\u003c\/strong\u003e, as well as smaller APS-C and M4\/3 formats. You can expect sharp, pinpoint stars from the center to the corners of your full-frame camera.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 0.72x reduction of the Flattener 8 affect my imaging time?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFocal reduction makes your telescope \"faster\" by concentrating the same amount of light onto a smaller area. A 0.72x reducer shortens exposure times by a factor of (0.72)^2, or approximately 0.52. This means a 10-minute exposure without the reducer would require only about 5 minutes to achieve the same signal-to-noise ratio with the Flattener 8 installed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the required back focus for the William Optics Flattener 8?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile the optical length is 77 mm, the required back focus (the distance from the flattener's rear flange to the camera sensor) depends on the telescope: 63.4 mm for the FLT132, 60.8 mm for the FLT156, 67.1 mm for the GT102 and 60.4 mm for the GT153, with adjust distances of 8.4 mm, 5.8 mm, 12.1 mm and 5.4 mm respectively.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the connection threads on the WO Flattener 8?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Flattener 8 uses two primary threads:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTelescope Side:\u003c\/strong\u003e M92 x 1 male thread.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera Side:\u003c\/strong\u003e M48 x 0.75 male thread (also known as the 2\" filter thread standard).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 1098 g weight of the Flattener 8 a concern for my telescope's focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAt 2.42 lbs, the Flattener 8 is a substantial piece of optical equipment. It requires a high-quality, robust focuser capable of handling heavy imaging trains without slipping or flexing. The rack-and-pinion focusers found on the William Optics telescopes it's designed for are more than capable of supporting this weight along with a camera.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eReducer Power\u003c\/td\u003e\n\u003ctd\u003e0.72x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003e3 Elements in 3 Groups\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Format Support\u003c\/td\u003e\n\u003ctd\u003eFull Frame, APS-C, M4\/3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Connection\u003c\/td\u003e\n\u003ctd\u003eM92 x 1 x 7.5 mm Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Connection\u003c\/td\u003e\n\u003ctd\u003eM48 x 0.75 x 4 mm Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported T-Mounts\u003c\/td\u003e\n\u003ctd\u003eCanon EF, RF; Nikon F, Z; Sony E; Pentax K; MFT (M4\/3); FUJI X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e77 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1098 g \/ 2.42 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRequired back focus\u003c\/td\u003e\n\u003ctd\u003e63.4 mm (FLT132), 60.8 mm (FLT156), 67.1 mm (GT102), 60.4 mm (GT153)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage circle\u003c\/td\u003e\n\u003ctd\u003e44.4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesigned for\u003c\/td\u003e\n\u003ctd\u003eFLT132, FLT156, GT102, GT153\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnification Factor\u003c\/td\u003e\n\u003ctd\u003e0.72x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics WO x0.72 Reducer Flattener 8\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967224148253,"sku":"WO-P-FLAT8","price":1103.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/William-Optics-WO-x0-72-Reducer-Flattener-8-P-FLAT8-1__56697.1596133245.1280.1280.jpg?v=1684339346"},{"product_id":"william-optics-99-dielectric-dura-bright-diagonal-1-25","title":"William Optics 99% Dielectric Dura Bright Diagonal - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e1.25\" Barrel Diameter\u003c\/li\u003e\n\u003cli\u003e99% Dielectric Coated Mirror\u003c\/li\u003e\n\u003cli\u003e1\/12λ Mirror Surface Accuracy\u003c\/li\u003e\n\u003cli\u003e12mm Thick Mirror Substrate\u003c\/li\u003e\n\u003cli\u003e100% Real Carbon Fiber Side Plates\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eWilliam Optics 99% Dielectric Dura Bright Diagonal - 1.25\"\u003c\/h2\u003e\n      \u003cp\u003eThe William Optics 1.25\" Dura-Bright Diagonal delivers maximum image brightness and contrast through its 99% reflective dielectric coatings and a precision 1\/12λ mirror. Built on a thermally stable 12mm thick substrate and housed in a patented, permanently aligned chassis with 100% real carbon fiber plates, this diagonal ensures your telescope's optical path remains perfect from the first day of use.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eThe 1\/12λ Mirror: 99% Reflectivity for Maximum Contrast\u003c\/h3\u003e\n      \u003cp\u003eA \u003ca href=\"\/en-int\/collections\/diagonals\"\u003estar diagonal\u003c\/a\u003e is a critical element in the optical chain, and the Dura-Bright is built around a laboratory-grade mirror. The 12mm thick substrate provides exceptional thermal and mechanical stability, while the surface is polished to a 1\/12λ wave accuracy, preserving the sharpness produced by your telescope's objective. Dielectric coatings provide 99% reflectivity, noticeably brightening the image and increasing contrast on faint deep-sky targets and subtle planetary details like the cloud bands of Jupiter.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003ePatented Design: 100% Carbon Fiber and Permanent Alignment\u003c\/h3\u003e\n      \u003cp\u003eWilliam Optics rejects the idea that a diagonal should ever need user adjustment. Where competing designs use collimation screws—an admission of potential mechanical flexure—the Dura-Bright employs a patented, fixed housing that guarantees perfect alignment for life. The 100% real carbon fiber side plates provide extreme rigidity and a touch of class, while internal baffles eliminate stray light for blacker backgrounds.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCompression Rings:\u003c\/strong\u003e Both the 1.25\" \u003ca href=\"\/en-int\/collections\/visual-adapters\"\u003eeyepiece holder\u003c\/a\u003e and adapter use brass compression rings to securely grip your \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepieces\u003c\/a\u003e without marring their barrels.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eGlove-Friendly Screws:\u003c\/strong\u003e Large, knurled thumbscrews are easy to operate even on cold nights while wearing gloves.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eInternal Safety Stop:\u003c\/strong\u003e A machined stop prevents long 1.25\" eyepiece barrels from ever making contact with the diagonal's mirror surface.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n    \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eDura-Bright vs. Standard Diagonals: A 5% Gain in Reflectivity\u003c\/h3\u003e\n      \u003cp\u003eCompared to standard aluminum or silver diagonals that typically offer 90-94% reflectivity, the Dura-Bright's 99% dielectric mirror transmits significantly more light to your eye. This 5% or greater increase in light throughput makes a visible difference when observing at the limits of your telescope, rendering faint galaxies brighter and globular clusters more resolved. The dielectric coatings are also far more durable than standard coatings, ensuring this brightness advantage does not degrade over years of use and cleaning.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the benefit of the William Optics Dura-Bright Diagonal's 99% reflectivity?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe \u003cstrong\u003e99% reflectivity\u003c\/strong\u003e from the dielectric coatings ensures the maximum amount of light from your telescope reaches the eyepiece. This results in brighter images and higher contrast compared to standard diagonals (which are often 90-94% reflective), making faint objects easier to see and planetary details more distinct.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill the 1.25\" Dura-Bright Diagonal improve my views of Jupiter and Saturn?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. The combination of high reflectivity and the \u003cstrong\u003e1\/12λ mirror surface\u003c\/strong\u003e preserves the finest details your telescope can resolve. This allows for sharper views of Jupiter’s Great Red Spot, subtle cloud bands, and the Cassini Division in Saturn’s rings, especially when compared to a lower-quality stock diagonal.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhy doesn't the William Optics Dura-Bright Diagonal have collimation screws?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eWilliam Optics considers adjustable alignment systems a sign of poor mechanical design. The Dura-Bright uses a \u003cstrong\u003epatented, rigid, non-adjustable housing\u003c\/strong\u003e to guarantee perfect alignment from the factory that will not shift over time. This ensures consistent, optimal performance without the need for user adjustment.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the carbon fiber on the Dura-Bright Diagonal just for aesthetics?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eWhile the \u003cstrong\u003e100% real carbon fiber\u003c\/strong\u003e side plates are visually striking, their primary purpose is structural. Carbon fiber is exceptionally strong, rigid, and lightweight, contributing to the diagonal's robust, permanently aligned construction.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use filters with the William Optics 1.25\" Dura-Bright Diagonal?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYou attach standard \u003cstrong\u003e1.25\" threaded filters\u003c\/strong\u003e directly to the barrel of your 1.25\" eyepieces before inserting them into the diagonal. The diagonal itself is also threaded for 1.25\" filters.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Dura-Bright Diagonal perform for splitting double stars like Albireo in my 80mm refractor?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eFor a task like splitting the colorful components of Albireo (Beta Cygni), the Dura-Bright excels. Its high-precision \u003cstrong\u003e1\/12λ mirror\u003c\/strong\u003e prevents any degradation of the star's Airy disk, ensuring the tightest possible stars. The high light transmission also helps maintain the brightness and rich color contrast of the binary pair in a smaller 80mm aperture.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eDiagonal Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eViewing Angle\u003c\/td\u003e\n\u003ctd\u003e90°\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eReflectivity\u003c\/td\u003e\n\u003ctd\u003e99%\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMirror Coatings\u003c\/td\u003e\n\u003ctd\u003eDielectric\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMirror Surface Accuracy\u003c\/td\u003e\n\u003ctd\u003e1\/12λ\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMirror Thickness\u003c\/td\u003e\n\u003ctd\u003e12mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSide Plate Material\u003c\/td\u003e\n\u003ctd\u003e100% Real Carbon Fiber\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eAlignment\u003c\/td\u003e\n\u003ctd\u003ePatented Non-Adjustable Design\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eEyepiece Holder\u003c\/td\u003e\n\u003ctd\u003eBrass Compression Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eBaffling\u003c\/td\u003e\n\u003ctd\u003eInternal Anti-Reflection Baffling\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eSafety Feature\u003c\/td\u003e\n\u003ctd\u003eInternal Stop for Eyepiece Barrels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope-Side Connection\u003c\/td\u003e\n\u003ctd\u003e1.25\" barrel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003e1.25\" Dura Bright Dielectric Diagonal\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003eDust Caps\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967224181021,"sku":"WO-D-125D-C-DB","price":181.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-Dura-Bright-Dielectric-Diagonal-1-25-inch-D-125D-C-DB-1__99095.1596133245.1280.1280.jpg?v=1684339363"},{"product_id":"william-optics-99-dielectric-dura-bright-diagonal-2","title":"William Optics 99% Dielectric Dura Bright Diagonal - 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e2\" Barrel with 90° Viewing Angle\u003c\/li\u003e\n\u003cli\u003e99% Reflectivity Dielectric Coatings\u003c\/li\u003e\n\u003cli\u003e1\/12th Wave Precision Polished Mirror\u003c\/li\u003e\n\u003cli\u003e12mm Thick Mirror Substrate for Thermal Stability\u003c\/li\u003e\n\u003cli\u003e100% Real Carbon Fiber Side Plates\u003c\/li\u003e\n\u003cli\u003eIncludes 2\" to 1.25\" Adapter with Compression Ring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics 99% Dielectric Dura Bright Diagonal - 2\"\u003c\/h2\u003e\n\u003cp\u003eThe William Optics 2\" Dura-Bright Diagonal is built around a 12mm thick, 1\/12th wave mirror substrate with 99% reflective dielectric coatings, delivering maximum light transmission for critical observations. Its 90° mirror design is housed in a precision-machined body featuring 100% real carbon fiber side plates, and it includes a 2\" to 1.25\" adapter to accommodate your entire eyepiece collection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e99% Reflectivity from a 1\/12th Wave Dielectric Mirror\u003c\/h3\u003e\n\u003cp\u003eAt the heart of the Dura-Bright is a mirror polished to a 1\/12th wave accuracy, ensuring that the image remains free of optical errors. This precision flat is supported by a 12mm thick substrate for excellent thermal stability, preventing image shift during temperature changes. The mirror's dielectric coatings achieve 99% reflectivity, providing noticeably brighter images and higher contrast when observing fine details on Jupiter's cloud bands or splitting close binary stars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCarbon Fiber Build with Non-Marring Compression Rings\u003c\/h3\u003e\n\u003cp\u003eThe diagonal's body is distinguished by 100% real carbon fiber side plates, reducing weight and adding structural rigidity. Both the 2\" diagonal barrel and the included 1.25\" adapter use brass compression rings, which secure your eyepieces firmly without scratching or marring their barrels. Internally, anti-reflection baffling eliminates stray light, while a safety stop prevents 2\" eyepiece barrels from ever contacting the mirror surface.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePatented Design: Permanently Aligned for Life\u003c\/h3\u003e\n\u003cp\u003eUnlike diagonals that require periodic adjustment, the William Optics Dura-Bright is engineered to hold its collimation permanently. A non-adjustable design is a testament to its mechanical integrity; the diagonal is CNC-machined from a solid block of aluminum to guarantee its optical axis remains perfectly aligned from the first day of use. This robust construction ensures your telescope's optical train remains precise, session after session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of the William Optics Dura-Bright's 99% dielectric coating?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e99% dielectric coating\u003c\/strong\u003e ensures that virtually all light gathered by your telescope reaches your eyepiece. This results in brighter, higher-contrast images compared to standard aluminum or silver coatings, which is especially critical for observing faint planetary details, deep-sky objects, and the subtle color differences in stars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy doesn't the William Optics Dura-Bright diagonal have collimation screws?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe absence of collimation screws is a design feature, not a limitation. William Optics builds the Dura-Bright diagonal with such high mechanical precision that it is guaranteed to hold its alignment permanently. Diagonals that offer adjustments often do so because their construction is less robust and can shift over time; the Dura-Bright's patented, solid design eliminates this possibility.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Dura-Bright diagonal scratch my eyepiece barrels?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. Both the main 2\" holder and the included 1.25\" adapter use \u003cstrong\u003ebrass compression rings\u003c\/strong\u003e. Unlike simple lock screws that dig into the eyepiece barrel, a compression ring provides a secure, even grip around the entire barrel, preventing any cosmetic damage or marring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 12mm thick mirror in the Dura-Bright help when observing Jupiter with my FLT-132?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e12mm thick mirror substrate\u003c\/strong\u003e provides superior thermal stability. When observing an object like Jupiter for an extended period, especially as your telescope adjusts to ambient temperature, a thinner mirror could slightly deform and soften the image. The Dura-Bright's thick mirror resists these changes, ensuring your view of the Great Red Spot and its cloud bands remains sharp and stable all night.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use 1.25\" eyepieces with the 2\" William Optics Dura-Bright diagonal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. The diagonal comes with a high-quality \u003cstrong\u003e2\" to 1.25\" adapter\u003c\/strong\u003e. This adapter also features a compression ring, so your 1.25\" eyepieces are held just as securely and safely as your 2\" eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Dura-Bright a good choice for splitting close double stars like Epsilon Lyrae with a GT102?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it's an excellent choice. Splitting tight doubles like the \"Double Double\" Epsilon Lyrae requires maximum image contrast and sharpness. The Dura-Bright's \u003cstrong\u003e1\/12th wave mirror\u003c\/strong\u003e and \u003cstrong\u003e99% reflectivity coatings\u003c\/strong\u003e preserve the delicate Airy disk and diffraction rings of the stars, making it easier to achieve a clean separation at high magnification with a high-end \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractor\u003c\/a\u003e like the GT102.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eViewing Angle\u003c\/td\u003e\n\u003ctd\u003e90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMirror Type\u003c\/td\u003e\n\u003ctd\u003eDura-Bright Dielectric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReflectivity\u003c\/td\u003e\n\u003ctd\u003e99%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMirror Substrate Thickness\u003c\/td\u003e\n\u003ctd\u003e12mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMirror Flatness\u003c\/td\u003e\n\u003ctd\u003e1\/12th wave\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSide Plate Material\u003c\/td\u003e\n\u003ctd\u003e100% Real Carbon Fiber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClamping Mechanism\u003c\/td\u003e\n\u003ctd\u003eBrass Compression Rings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBaffling\u003c\/td\u003e\n\u003ctd\u003eInternal Anti-Reflection Baffling\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Feature\u003c\/td\u003e\n\u003ctd\u003eInternal Barrel Stop\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapter Included\u003c\/td\u003e\n\u003ctd\u003e2\" to 1.25\" with Compression Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope-Side Connection\u003c\/td\u003e\n\u003ctd\u003e2\" barrel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics 2\" 99% Dielectric Dura Bright Diagonal\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2\" to 1.25\" Eyepiece Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967224213789,"sku":"WO-D-DIG2D-C-DB","price":217.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/William-Optics-2-inch-Durabright-CF-Plate-D-DIG2D-C-DB-T-1__49229.1642255347.1280.1280.jpg?v=1684339370"},{"product_id":"william-optics-45-erecting-prism-1-25","title":"William Optics 45° Erecting Prism - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eProvides a fully corrected image (upright and left-right correct)\u003c\/li\u003e\n\u003cli\u003eComfortable 45° viewing angle for terrestrial observation\u003c\/li\u003e\n\u003cli\u003eFits standard 1.25\" focusers and accepts 1.25\" eyepieces\u003c\/li\u003e\n\u003cli\u003eHigh-quality BAK7 prism with anti-reflection coatings\u003c\/li\u003e\n\u003cli\u003eFeatures a non-marring brass compression ring to protect eyepieces\u003c\/li\u003e\n\u003cli\u003eDurable, internally baffled black-anodized aluminum body\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics 45° Erecting Prism - 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe William Optics 45° Erecting Prism transforms any astronomical telescope with a 1.25\" \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e into a powerful terrestrial scope for daytime viewing. It reorients the standard inverted and reversed image, delivering a view that is fully upright and corrected left-to-right, just as your eyes see it naturally. With its high-quality BAK7 prism and anti-reflection coatings, this \u003ca href=\"\/en-int\/collections\/diagonals\"\u003ediagonal\u003c\/a\u003e provides the bright, high-contrast images necessary for birdwatching, landscape viewing, or maritime observation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFrom Astronomical to Terrestrial: A Fully Corrected 1.25\" View\u003c\/h3\u003e\n\u003cp\u003eA standard telescope view is upside-down and backwards, which is disorienting for observing anything on Earth. This 1.25\" erecting prism solves that problem completely. It provides a \"correct-image\" orientation, making it intuitive to follow moving targets like birds in flight or boats on the water.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBAK7 Prism Optics: Bright, High-Contrast Daytime Images\u003c\/h3\u003e\n\u003cp\u003eAt the heart of this diagonal is a large, high-quality BAK7 prism. Paired with anti-reflection coatings, it maximizes light throughput for exceptionally bright views. To ensure high contrast and prevent washed-out images, the interior of the aluminum housing is fully blackened and baffled to eliminate stray light reflections before they reach your \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepiece\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSecure by Design: Anodized Aluminum and a Brass Compression Ring\u003c\/h3\u003e\n\u003cp\u003eThe William Optics erecting prism is built for durability and ease of use. The body is machined from black-anodized aluminum, and the 1.25\" \u003ca href=\"\/en-int\/collections\/visual-adapters\"\u003eeyepiece holder\u003c\/a\u003e features a non-marring brass compression ring. This design ensures your eyepiece barrels are held securely without the scratches and gouges caused by single-thumbscrew systems. Large, chromed thumbscrews make it easy to secure your eyepieces, even when wearing gloves.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e45° vs. 90° Diagonals: Choosing the Right Tool for the Job\u003c\/h3\u003e\n\u003cp\u003eWhile a standard 90° star diagonal is ideal for astronomy, its image is still reversed left-to-right. This 45° erecting prism provides a fully correct image, making it superior for terrestrial use. The 45° angle is also more comfortable for viewing subjects on or near the horizon, whereas a 90° angle becomes awkward. For daytime use, the 45° erecting prism is the correct choice; for nighttime astronomical viewing, a 90° star diagonal remains the standard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need the William Optics 45° Erecting Prism for daytime viewing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAstronomical telescopes naturally produce an image that is upside-down and backward. While this doesn't matter for stars, it makes viewing terrestrial objects impossible to follow. The \u003cstrong\u003eWilliam Optics 45° Erecting Prism\u003c\/strong\u003e corrects the image to be both upright and normal left-to-right, making your telescope function like a high-power \u003ca href=\"\/en-int\/collections\/spotting-scopes\"\u003espotting scope\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this William Optics prism work with my Schmidt-Cassegrain or reflector telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis prism is primarily designed for \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractors\u003c\/a\u003e and \u003ca href=\"\/en-int\/collections\/maksutov-cassegrain-telescopes\"\u003eMaksutov-Cassegrain telescopes\u003c\/a\u003e. While it will fit in the 1.25\" focuser of a \u003ca href=\"\/en-int\/collections\/schmidt-cassegrain-telescopes\"\u003eSchmidt-Cassegrain\u003c\/a\u003e (SCT) or \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonian reflector\u003c\/a\u003e, you may not have enough focuser travel to reach a sharp image. Refractors are generally the best match for this type of diagonal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between this 45° erecting prism and a standard 90° star diagonal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThere are two key differences:\n\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eImage Orientation:\u003c\/strong\u003e A 90° star diagonal corrects the up\/down orientation but leaves the image mirrored left-to-right. This 45° prism corrects \u003cstrong\u003eboth\u003c\/strong\u003e axes, providing a fully correct image.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViewing Angle:\u003c\/strong\u003e The 45° angle is more comfortable for looking at objects on the horizon. The 90° angle is better for looking high into the night sky.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the brass compression ring on the WO-D-EP125 do?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003ebrass compression ring\u003c\/strong\u003e is a soft metal ring inside the eyepiece holder that tightens evenly around your eyepiece barrel when you turn the thumbscrew. This provides a secure, centered grip without scratching or marring the eyepiece barrel, unlike a simple set screw that digs into one point.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the William Optics 45° prism for birdwatching with my 80mm refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. An 80mm refractor paired with this erecting prism makes an excellent, high-magnification setup for birdwatching. The fully corrected image allows you to easily track birds, and the optical quality of the BAK7 prism ensures you'll see fine feather detail with bright, clear views.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this prism affect focusing on my telescope when viewing ships from my balcony?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, all diagonals change the focus point of a telescope. The William Optics 45° prism will require you to move the focuser \"out\" (away from the telescope tube) to reach focus compared to viewing without a diagonal. Most refractors have ample focuser travel to accommodate this without any issue.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagonal Type\u003c\/td\u003e\n\u003ctd\u003eErecting Prism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eViewing Angle\u003c\/td\u003e\n\u003ctd\u003e45°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage Orientation\u003c\/td\u003e\n\u003ctd\u003eFully Corrected (Upright \u0026amp; Left-Right Correct)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrism Material\u003c\/td\u003e\n\u003ctd\u003eBAK7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Coatings\u003c\/td\u003e\n\u003ctd\u003eAnti-Reflection Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Construction\u003c\/td\u003e\n\u003ctd\u003eBlack Anodized Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterior\u003c\/td\u003e\n\u003ctd\u003eBaffled and Blackened\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Holder\u003c\/td\u003e\n\u003ctd\u003e1.25\" with Brass Compression Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope-Side Connection\u003c\/td\u003e\n\u003ctd\u003e1.25\" barrel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics 45° Erecting Prism - 1.25\"\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967224246557,"sku":"WO-D-EP125","price":144.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-45-degree-Erecting-Prism-1-25-inch-D-EP125-1__94579.1596133249.1280.1280.jpg?v=1684339395"},{"product_id":"william-optics-redcat-erecting-prism-1-25-silver-version","title":"William Optics RedCat WIFD Erecting Prism - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConverts Astronomical Telescopes for Terrestrial Viewing\u003c\/li\u003e\n\u003cli\u003e90-Degree Viewing Angle\u003c\/li\u003e\n\u003cli\u003eAccepts Standard 1.25\" Eyepieces\u003c\/li\u003e\n\u003cli\u003eAnti-Reflection Coated BAK7 Prism\u003c\/li\u003e\n\u003cli\u003eCNC-Machined 6061T Aluminum Housing\u003c\/li\u003e\n\u003cli\u003eInternally Baffled and Matte Blackened to Maximize Contrast\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics RedCat WIFD Erecting Prism - 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe William Optics RedCat WIFD Erecting Prism transforms your astronomical telescope into a powerful daytime \u003ca href=\"\/en-int\/collections\/spotting-scopes\"\u003espotting scope\u003c\/a\u003e with its 90-degree, correct-image light path. Designed to fit any standard 1.25-inch \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e, this prism uses an anti-reflection coated BAK7 prism to deliver bright, sharp, and correctly oriented views, making it ideal for terrestrial observation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCorrect-Image Daytime Viewing with a 90-Degree BAK7 Prism\u003c\/h3\u003e\n\u003cp\u003eAn astronomical telescope naturally produces an inverted or mirror-reversed image, which is disorienting for terrestrial subjects. This 90-degree erecting prism corrects the image orientation both vertically and horizontally, allowing you to view ships on the horizon, wildlife, or distant landscapes as you would with your own eyes. The internal BAK7 prism is anti-reflection coated to ensure high light transmission for a clear and vibrant image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCNC-Machined 6061T Aluminum Construction\u003c\/h3\u003e\n\u003cp\u003eReflecting William Optics' commitment to quality, the entire prism housing is precision CNC-machined from a solid block of 6061T aluminum. The interior is matte blackened and threaded to absorb stray light, preventing internal reflections from reducing image contrast. Finished in the distinctive William Optics red anodizing, this erecting prism is built to provide durable, high-fidelity performance that perfectly complements the \u003ca href=\"\/en-int\/products\/william-optics-redcat-51-wifd\"\u003eRedCat 51 WIFD\u003c\/a\u003e and other premium \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractors\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the William Optics 1.25\" Erecting Prism do for my RedCat 51?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis prism converts your RedCat 51, or any telescope with a 1.25\" focuser, into a terrestrial spotting scope. It corrects the inverted and reversed image produced by the telescope, providing a view that is correctly oriented for daytime activities like birdwatching, nature observation, or surveillance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this William Optics prism for astronomy at night?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile you can use it for casual stargazing, an erecting prism is not ideal for critical astronomical observation. The complex light path required to correct the image can introduce minor aberrations and light loss compared to a high-quality mirror or Amici prism \u003ca href=\"\/en-int\/collections\/diagonals\"\u003estar diagonal\u003c\/a\u003e. For the best possible astronomical views, a dedicated star diagonal is recommended.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will this 90-degree prism help with birdwatching using my RedCat 51 telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor birdwatching, having a correctly oriented image is essential for tracking moving subjects. This 90-degree prism ensures that when you move the telescope up, the view moves up, and when you move it left, the view moves left. This intuitive control allows you to follow birds in flight or locate them in dense foliage much more easily than with an astronomical diagonal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between this erecting prism and a standard star diagonal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA standard \u003cstrong\u003estar diagonal\u003c\/strong\u003e corrects the image vertically but leaves it mirror-reversed (left-to-right). This is acceptable for astronomy but confusing for terrestrial viewing. An \u003cstrong\u003eerecting prism\u003c\/strong\u003e, like this one, corrects the image on both axes, providing a fully correct, daytime-friendly view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI want to use my William Optics RedCat 51 for plane spotting. Is this the right accessory?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is an excellent accessory for plane spotting. The fully corrected image allows you to track aircraft across the sky intuitively, and the 90-degree angle provides a comfortable viewing position when the telescope is pointed at high altitudes. The high-contrast optics will help you resolve details and airline liveries clearly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the William Optics Erecting Prism compatible with non-William Optics telescopes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. This erecting prism uses a standard 1.25\" barrel, making it compatible with any telescope that accepts 1.25\" eyepieces and diagonals. You will just need to ensure your focuser has enough travel to reach focus with the prism in the optical train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eErecting Prism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eViewing Angle\u003c\/td\u003e\n\u003ctd\u003e90-Degree\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrism Material\u003c\/td\u003e\n\u003ctd\u003eBAK7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eAnti-Reflection Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHousing Material\u003c\/td\u003e\n\u003ctd\u003eCNC-Machined 6061T Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eRed Anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterior\u003c\/td\u003e\n\u003ctd\u003eMatte Blackened \u0026amp; Threaded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Use\u003c\/td\u003e\n\u003ctd\u003eDaytime Terrestrial Observation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eDesigned for RedCat 51 WIFD, compatible with all 1.25\" focusers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope-Side Connection\u003c\/td\u003e\n\u003ctd\u003e1.25\" barrel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics RedCat WIFD Erecting Prism - 1.25\"\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1.25\" Dust Cap\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eEyepiece Dust Cap\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967224443165,"sku":"WO-D-EP90-125-RC51III","price":208.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/William-Optics-RedCat-Erecting-Prism-1-25-inch-Silver-Version-D-EP90-125-RC51-SL-1__00946.1596133250.1280.1280.jpg?v=1684339157"},{"product_id":"william-optics-90-erect-prism-1-25","title":"William Optics 90° Erect Prism - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eProvides a fully corrected, upright, and non-reversed image\u003c\/li\u003e\n\u003cli\u003eDesigned for 1.25\" focusers and eyepieces\u003c\/li\u003e\n\u003cli\u003e90° viewing angle for comfortable observing\u003c\/li\u003e\n\u003cli\u003eIntegrated helical focuser for fine adjustments\u003c\/li\u003e\n\u003cli\u003eThreaded to accept standard 1.25\" filters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics 90° Erect Prism - 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe William Optics 90° Erect Prism corrects the image orientation in any 1.25\" \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e, making your astronomical \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractor\u003c\/a\u003e a superb terrestrial telescope. This BAK7 prism design provides an upright, non-reversed view at a comfortable 90° angle, a critical feature for daytime observation that standard \u003ca href=\"\/en-int\/collections\/diagonals\"\u003emirror diagonals\u003c\/a\u003e cannot offer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA 90° Erecting Prism for Correct-Image Views\u003c\/h3\u003e\n\u003cp\u003eA standard astronomical telescope inverts the image. This William Optics diagonal uses a high-accuracy BAK7 erecting prism to flip the image both vertically and horizontally, producing a view that matches what you see with your naked eye. This is essential for birdwatching, landscape viewing, or any terrestrial application where a true-to-life orientation is required.\u003c\/p\u003e\n\u003cp\u003eThe prism features anti-reflection coatings to maximize light transmission, while the interior of the housing is matte blackened to eliminate stray light reflections. The result is a high-contrast image that makes this diagonal a perfect match for premium refractors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eHelical Focuser and 1.25\" Filter Threads\u003c\/h3\u003e\n\u003cp\u003eA key feature of this diagonal is the integrated helical focuser on the \u003ca href=\"\/en-int\/collections\/visual-adapters\"\u003eeyepiece holder\u003c\/a\u003e. This mechanism allows for fine, precise focus adjustments without touching your telescope's main focuser, which is ideal for achieving critical sharpness at high magnification or for matching focus between different \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepieces\u003c\/a\u003e.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e The body is machined from black anodized aluminum, ensuring a rigid and durable connection in your optical train.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Compatibility:\u003c\/strong\u003e The 1.25\" nosepiece is threaded to accept standard 1.25\" filters, allowing you to easily add a \u003ca href=\"\/en-int\/collections\/neutral-density-and-polarizing-filters\"\u003emoon filter\u003c\/a\u003e or color filter for planetary viewing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eWilliam Optics Erecting Prism vs. Standard Mirror Diagonals\u003c\/h3\u003e\n\u003cp\u003eFor astronomical use, a high-end dielectric mirror diagonal may offer marginally higher light transmission, making it preferable for imaging faint deep-sky objects. However, a mirror diagonal only corrects the up-down axis, leaving the image reversed left-to-right.\u003c\/p\u003e\n\u003cp\u003eFor any application where image orientation matters, the erecting prism is the superior tool. Whether you're tracking a ship on the horizon or using your telescope for public outreach, the William Optics 90° Erect Prism delivers an intuitive, correctly oriented view that mirrors reality.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need the William Optics 90° Erect Prism for daytime viewing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eStandard astronomical diagonals produce an image that is either upside-down or mirrored left-to-right. The \u003cstrong\u003eWilliam Optics 90° Erect Prism\u003c\/strong\u003e corrects the image on both axes, giving you a fully upright and non-reversed view, just like a pair of \u003ca href=\"\/en-int\/collections\/binoculars\"\u003ebinoculars\u003c\/a\u003e. This is essential for terrestrial applications like birdwatching or landscape observation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the helical focuser on the William Optics Erect Prism work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe top barrel of the diagonal, where you insert the eyepiece, can be rotated. This rotation moves the eyepiece up and down with very fine precision, allowing you to make small, critical focus adjustments. It's especially useful for fine-tuning focus at high power or when swapping eyepieces that are not perfectly parfocal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the William Optics 1.25\" Erect Prism work with my Schmidt-Cassegrain telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this prism diagonal will work perfectly with any \u003ca href=\"\/en-int\/collections\/schmidt-cassegrain-telescopes\"\u003eSchmidt-Cassegrain\u003c\/a\u003e (SCT), \u003ca href=\"\/en-int\/collections\/maksutov-cassegrain-telescopes\"\u003eMaksutov-Cassegrain\u003c\/a\u003e, or refractor that uses a 1.25\" visual back or focuser. It provides a comfortable 90° viewing angle and a correctly oriented image, making it a versatile accessory for any compatible telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use 1.25\" filters like a moon filter with this William Optics prism?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The 1.25\" nosepiece that inserts into the telescope's focuser is threaded to accept all standard 1.25\" filters. You can easily attach a moon filter, planetary color filters, or a \u003ca href=\"\/en-int\/collections\/light-pollution-filters\"\u003elight pollution filter\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat's the difference between this William Optics Erecting Prism and a mirror diagonal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAn \u003cstrong\u003eErecting Prism\u003c\/strong\u003e provides a fully corrected image (upright and not reversed left-to-right), which is ideal for daytime use. A \u003cstrong\u003eMirror Diagonal\u003c\/strong\u003e provides an image that is upright but still reversed left-to-right. While a high-quality mirror may have slightly better light transmission for deep-sky astronomy, the prism is the correct choice for terrestrial viewing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this prism a good choice for observing planets like Jupiter in my premium refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile this prism will certainly show you planets, a high-quality dielectric mirror diagonal is generally recommended for critical planetary observation. Mirror diagonals tend to have slightly higher light throughput and introduce fewer optical artifacts than a prism, preserving the maximum possible contrast for viewing details like the cloud bands of Jupiter or the Cassini Division in Saturn's rings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eViewing Angle\u003c\/td\u003e\n\u003ctd\u003e90°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage Orientation\u003c\/td\u003e\n\u003ctd\u003eErect (Upright \u0026amp; Non-Reversed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrism Type\u003c\/td\u003e\n\u003ctd\u003eBAK7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eAnti-Reflection Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003eIntegrated Helical Focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eBlack Anodized Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Baffling\u003c\/td\u003e\n\u003ctd\u003eMatte Blackened\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Threads\u003c\/td\u003e\n\u003ctd\u003eYes (1.25\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKind\u003c\/td\u003e\n\u003ctd\u003eErecting prism\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope-Side Connection\u003c\/td\u003e\n\u003ctd\u003e1.25\" barrel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics 90° Erect Prism - 1.25\"\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967224803613,"sku":"WO-D-EP90-125II","price":152.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/William-Optics-90-degree-Erect-Prism-1-25-inch-D-EP90-125II-1__05101.1596133252.1280.1280.jpg?v=1684339397"}],"url":"https:\/\/davidastro.com\/en-int\/collections\/sales.oembed?page=11","provider":"David Astro","version":"1.0","type":"link"}