{"title":"Care \u0026 Field Gear","description":"\u003cdiv\u003e\n  \u003cp\u003eGood observing nights depend on more than optics. Equipment needs to travel without damage, stay collimated, stay clean and be easy to use in the dark. This collection gathers the gear that keeps a telescope working season after season: hard cases and padded bags, outdoor covers, collimation tools, cleaning supplies, red lights, star charts and spare parts.\u003c\/p\u003e\n  \u003cp\u003eBrands include Nanuk (made in Canada), Baader, Orion Optics UK, Celestron, Howie Glatter, Telegizmos, Bob's Knobs, Geoptik, Purosol, Tele Vue and more.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- more --\u003e\n\u003cdiv\u003e\n  \u003ch2\u003eWhat You Will Find\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/en-int\/collections\/cases-and-covers\"\u003eCases and covers\u003c\/a\u003e:\u003c\/strong\u003e Waterproof hard cases with custom foam, padded bags for tubes and mounts, and Telegizmos covers for telescopes left outside.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/en-int\/collections\/collimation-tools\"\u003eCollimation tools\u003c\/a\u003e:\u003c\/strong\u003e Lasers, Cheshires, autocollimators and Barlowed laser attachments for Newtonians and SCTs.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/en-int\/collections\/cleaning-supplies\"\u003eCleaning supplies\u003c\/a\u003e:\u003c\/strong\u003e Blowers, brushes, coating-safe fluids and tissues.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/en-int\/collections\/red-lights-and-observing-gear\"\u003eRed lights and observing gear\u003c\/a\u003e:\u003c\/strong\u003e Lights that protect night vision, observing chairs and small field tools.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/en-int\/collections\/books-and-charts\"\u003eBooks and charts\u003c\/a\u003e:\u003c\/strong\u003e Star atlases and planispheres that work when batteries die in the cold.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/en-int\/collections\/spare-parts\"\u003eSpare parts\u003c\/a\u003e:\u003c\/strong\u003e Screws, knobs, springs and small parts, including for older models.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n  \u003ch2\u003ePractical Advice\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eClean less:\u003c\/strong\u003e A little dust has almost no effect on the image. Cleaning too often does more harm than good. Send us a photo if you are unsure.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCollimate often:\u003c\/strong\u003e A quick check before each session with a Newtonian or SCT pays off far more than cleaning.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCase fit:\u003c\/strong\u003e We check the internal dimensions of a case against your exact tube, mount head or eyepiece set.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n  \u003ch2\u003eCare and Field Gear: Frequently Asked Questions\u003c\/h2\u003e\n  \u003ch3\u003eWhen should I clean my telescope optics?\u003c\/h3\u003e\n  \u003cp\u003eOnly when dust or film visibly reduces contrast, or after pollen or salt exposure. Blow off loose dust first and never rub dry glass.\u003c\/p\u003e\n  \u003ch3\u003eWhich collimation tool should I buy?\u003c\/h3\u003e\n  \u003cp\u003eA Cheshire is simple and never needs adjustment. A good laser is fast in the dark. For fast Newtonians, a Barlowed laser or autocollimator gives the best accuracy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n  \u003ch2\u003eProtecting your equipment?\u003c\/h2\u003e\n  \u003cp\u003eTell us what you need to transport or store. We will recommend a case or cover that fits.\u003c\/p\u003e\n\u003c\/div\u003e\n","products":[{"product_id":"celestron-sky-maps","title":"Celestron Sky Maps","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eGlow-in-the-dark luminous planisphere shows the sky for any date and time\u003c\/li\u003e\n\u003cli\u003eCovers the night sky for 10 years, from 2020 through 2029\u003c\/li\u003e\n\u003cli\u003eIncludes 24 pages of detailed seasonal star charts\u003c\/li\u003e\n\u003cli\u003eLarge 11.25\" x 13.75\" format makes charts easy to read in the dark\u003c\/li\u003e\n\u003cli\u003ePrinted on water-resistant, heavy-duty card stock for field 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\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\u003eCelestron Sky Maps\u003c\/h2\u003e\n\u003cp\u003eThe Celestron Sky Maps is your guide to the Northern Hemisphere's night sky, featuring 24 pages of charts valid for the entire decade from 2020 through 2029. This classic field guide, measuring 11.25\" x 13.75\" and weighing just 1 lb, combines a rotating \u003ca href=\"\/en-int\/collections\/books-and-charts\"\u003eplanisphere\u003c\/a\u003e with seasonal charts to help you identify constellations and celestial objects. Its durable, water-resistant construction ensures it can withstand years of use at the 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\u003eThe 365-Day Glow-in-the-Dark Star Finder\u003c\/h3\u003e\n\u003cp\u003eThe front cover is an intuitive planisphere, a star wheel you can rotate to match any date and time to see a map of the sky for that exact moment. After exposing the planisphere to light, the major stars and constellations glow in the dark, making it easy to compare the chart to the real night sky without ruining your dark adaptation. This feature makes it an essential tool for quickly orienting yourself any night of the year.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e4 Detailed Charts for Star-Hopping\u003c\/h3\u003e\n\u003cp\u003eInside the Celestron Sky Maps, you'll find large, detailed star charts for each of the four seasons. These charts are more comprehensive than the planisphere, showing fainter stars and the locations of popular deep-sky objects. They are designed for \"star-hopping\"—the technique of using bright, known stars as pointers to navigate your way to fainter targets like nebulae and galaxies with \u003ca href=\"\/en-int\/collections\/binoculars\"\u003ebinoculars\u003c\/a\u003e or a 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\u003e11.25\" x 13.75\" Water-Resistant Construction\u003c\/h3\u003e\n\u003cp\u003eBuilt for frequent use outdoors, the Celestron Sky Maps are printed on heavy-duty, water-resistant card stock that resists dew and moisture. The plastic spiral comb binding is secure and allows the pages to lie completely flat, a critical feature when you're juggling equipment in the dark. This durable design ensures your star charts remain a reliable part of your observing kit for years.\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 glow-in-the-dark feature on the Celestron Sky Maps?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSimply expose the planisphere on the front cover to a bright light source for a minute or two. A flashlight or indoor lamp works perfectly. The phosphorescent material will absorb the light, causing the major stars and constellation outlines to glow for an extended period, making them visible in the dark.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eAre the Celestron Sky Maps useful after 2029?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. While the planetary positions noted in the guide are for the years 2020 through 2029, the star charts themselves are accurate for many decades. The positions of constellations and deep-sky objects change immeasurably slowly from a human perspective, so the core charts will remain a valid guide to the stars indefinitely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this star chart suitable for a complete beginner?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the Celestron Sky Maps are ideal for beginners. The planisphere provides a simple, immediate way to learn the major constellations, while the seasonal charts offer the next step for finding objects with binoculars or a new telescope. The included illustrated reference section also helps explain the different types of objects you can see.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the Celestron Sky Maps to find the Orion Nebula (M42) in winter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFirst, use the planisphere on the cover, setting it to your current date and time in a winter month to locate the constellation Orion. Then, turn to the winter star chart inside. Find the three bright stars that form Orion's belt; the chart will show the Orion Nebula located in the \"sword\" hanging just below the belt.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Celestron Sky Maps to plan for the Perseid meteor shower in August?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Set the planisphere to a date around August 12th and the time you plan to observe. It will show you where the constellation Perseus, the radiant of the shower, is located in the sky. This helps you orient your view to the correct part of the sky to see the most meteors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow durable are the Celestron Sky Maps against dew?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe maps are printed on heavy-duty, water-resistant card stock specifically to combat dew, which is a common problem during nighttime observing. While not fully waterproof, they can handle typical moisture and condensation in the field far better than standard paper charts.\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\u003eAuthor\u003c\/td\u003e\n\u003ctd\u003eCelestron Acquisitions LLC.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePublisher\u003c\/td\u003e\n\u003ctd\u003eCelestron Acquisitions LLC.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLanguage\u003c\/td\u003e\n\u003ctd\u003eEnglish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFormat\u003c\/td\u003e\n\u003ctd\u003ePaperback\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePages\u003c\/td\u003e\n\u003ctd\u003e24 pages\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYears Covered\u003c\/td\u003e\n\u003ctd\u003e2020 through 2029\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDate of Publication\u003c\/td\u003e\n\u003ctd\u003eDecember 6, 2020\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eISBN-10\u003c\/td\u003e\n\u003ctd\u003eNot applicable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eISBN-13\u003c\/td\u003e\n\u003ctd\u003eNot applicable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1 lb (453.6 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e11.25\" x 13.75\" x 1.5\" (285.75mm x 349.25mm x 38.1mm)\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\"\u003eCelestron Sky Maps\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\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967182532893,"sku":"CEL-93722","price":43.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-Sky-Maps-93722-1__41607.1594230506.1280.1280.jpg?v=1684338294"},{"product_id":"celestron-optical-tube-carrying-case-4-5-6-8-sct-or-edgehd","title":"Celestron Optical Tube Carrying Case (4\/5\/6\/8 SCT or EdgeHD)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits Celestron 4\", 5\", 6\" NexStar SE\/Evolution scopes with mount\u003c\/li\u003e\n\u003cli\u003eProtects 8\" Schmidt-Cassegrain or EdgeHD optical tubes\u003c\/li\u003e\n\u003cli\u003eExternal Dimensions: 584mm x 381mm x 356mm\u003c\/li\u003e\n\u003cli\u003eInternal Dimensions: 483mm x 279mm x 254mm\u003c\/li\u003e\n\u003cli\u003eThick 38.1mm (1.5\") foam padding on all interior walls\u003c\/li\u003e\n\u003cli\u003eFeatures three handles, including an extension handle for rolling\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\u003eCelestron Optical Tube Carrying Case (4\/5\/6\/8 SCT or EdgeHD)\u003c\/h2\u003e\n\u003cp\u003eThis Celestron Optical Tube Carrying Case offers a secure transport solution with external dimensions of 584mm by 381mm by 356mm, built into a durable, flexible EVA-molded shell. The interior provides a 483mm by 279mm by 254mm bay, fully lined with 38.1mm (1.5\") thick foam padding to protect your telescope during transit. With three integrated handles, including an extendable one for rolling, this case is designed to safely carry everything from a complete \u003ca href=\"\/en-int\/products\/celestron-nexstar-4se-computerized-telescope\"\u003eNexStar 4SE\u003c\/a\u003e setup to an 8\" EdgeHD optical 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\u003eEVA-Molded Shell: 584mm of Padded Protection\u003c\/h3\u003e\n\u003cp\u003eThe case's primary defense is its hard-shelled, EVA-molded exterior, which provides rigid protection against impacts while remaining flexible enough to absorb shocks. With external dimensions of 584mm x 381mm x 356mm, it's sized for portability without compromising on interior safety. Every internal wall is lined with 38.1mm (1.5\") of dense foam, creating a cushioned environment that isolates your optics from bumps and vibrations on the road.\u003c\/p\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 483mm Bay with Foam Spacers and Straps\u003c\/h3\u003e\n\u003cp\u003eInside its protective shell, the case reveals a 483mm long, 279mm wide, and 254mm deep main compartment designed for a range of Celestron telescopes. To ensure a secure fit for smaller instruments, the case includes two dense foam spacers and a built-in compression strap. This system allows you to customize the interior, preventing your optical tube or mount from shifting and ensuring delicate components like the corrector plate and \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e are held securely in place.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThree Handles for 4\" SE to 8\" EdgeHD OTAs\u003c\/h3\u003e\n\u003cp\u003eEngineered for real-world use, this case features three distinct handles to adapt to different carrying needs. Two durable cloth handles, one on the top and one on the side, allow for easy lifting into a vehicle. For longer walks across parking lots or star party fields, a third extension handle allows you to roll the case on its integrated wheels. This versatile design supports the full range of compatible scopes, from a complete \u003ca href=\"\/en-int\/products\/celestron-nexstar-6se-computerized-telescope\"\u003eNexStar 6SE\u003c\/a\u003e with its mount to a standalone 8\" EdgeHD optical tube.\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\"\u003eWill my Celestron NexStar 8SE fit in this case?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eoptical tube assembly (OTA)\u003c\/strong\u003e of a \u003ca href=\"\/en-int\/products\/celestron-nexstar-8se-computerized-telescope\"\u003eCelestron NexStar 8SE\u003c\/a\u003e or any Celestron 8\" SCT\/EdgeHD will fit perfectly. However, the case is not designed to hold an 8\" OTA and its single-fork arm mount simultaneously. You would need to transport the mount separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I pack my NexStar 6SE with its mount in this case?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Celestron Optical Tube Carrying Case is designed to hold a complete NexStar 4\", 5\", or 6\" SE telescope, including the mount and optical tube. You will place the assembly inside, use the two included foam spacers to fill any gaps, and then tighten the built-in compression strap to ensure nothing moves during transport.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs there room for accessories in the Celestron Carrying Case?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The case includes a zippered storage pocket designed to hold standard accessories like your \u003ca href=\"\/en-int\/collections\/diagonals\"\u003estar diagonal\u003c\/a\u003e, a few \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepieces\u003c\/a\u003e, and your \u003ca href=\"\/en-int\/collections\/finder-scopes\"\u003ered dot finder\u003c\/a\u003e. The foam padding above this pouch helps keep everything secure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this case for my 8\" EdgeHD OTA for a trip to a dark sky site?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. This case is an ideal solution for protecting your 8\" EdgeHD optical tube on the way to a remote observing site. The 483mm internal length is sufficient for the OTA, and the 38.1mm thick foam provides excellent protection against road vibrations. The wheels and extension handle make it easy to transport from your car to your setup location.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this Celestron case suitable for airline travel?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWith external dimensions of 584mm x 381mm x 356mm (23\" x 15\" x 14\"), this case may exceed carry-on limits for some airlines and would likely need to be checked. While the EVA shell and foam offer good protection, we always recommend checking your airline's specific size and weight restrictions before traveling.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the foam spacers for in this OTA case?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe two dense foam spacers are included to customize the fit for different telescope models. For example, when packing a smaller NexStar 4\" or 5\" SE, these spacers fill the extra space within the 483mm x 279mm internal bay to create a snug, secure fit, preventing any movement.\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\u003eExternal Length\u003c\/td\u003e\n\u003ctd\u003e584mm (23\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Width\u003c\/td\u003e\n\u003ctd\u003e381mm (15\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Height\u003c\/td\u003e\n\u003ctd\u003e356mm (14\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Length\u003c\/td\u003e\n\u003ctd\u003e483mm (19\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Width\u003c\/td\u003e\n\u003ctd\u003e279mm (11\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Height\u003c\/td\u003e\n\u003ctd\u003e254mm (10\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFoam Padding\u003c\/td\u003e\n\u003ctd\u003e38.1mm (1.5\") thick on all walls\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHandles\u003c\/td\u003e\n\u003ctd\u003e3 (Top, Side, Extension for rolling)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eTBD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHolds\u003c\/td\u003e\n\u003ctd\u003eNexStar SE 4\" (mount and OTA), NexStar SE 5\" (mount and OTA), NexStar SE 6\" (mount and OTA), NexStar Evolution 6\" (mount and OTA), 8\" SCT \/ EdgeHD (OTA only)\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\"\u003eOptical Tube Carrying Case (4\/5\/6\/8 SCT or EdgeHD)\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\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967182631197,"sku":"CEL-94003","price":403.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-Optical-Tube-Carrying-Case-4-5-6-8-SCT-or-EdgeHD-94003-1__88255.1594230506.1280.1280.jpg?v=1684338299"},{"product_id":"celestron-optical-tube-carrying-case-8-9-25-11-sct-or-edgehd","title":"Celestron Optical Tube Carrying Case (8\/9.25\/11 SCT or EdgeHD)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAccommodates Celestron 8\", 9.25\", or 11\" SCT and EdgeHD OTAs\u003c\/li\u003e\n\u003cli\u003eAlso fits Celestron NexStar SE 8\" and Evolution 8\"\/8HD (with mount)\u003c\/li\u003e\n\u003cli\u003eInternal dimensions of 660mm x 356mm x 305mm\u003c\/li\u003e\n\u003cli\u003eThick 38.1mm (1.5\") foam padding on all interior walls\u003c\/li\u003e\n\u003cli\u003eFeatures durable wheels and an extendable handle for easy rolling\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\u003eCelestron Optical Tube Carrying Case (8\/9.25\/11 SCT or EdgeHD)\u003c\/h2\u003e\n\u003cp\u003eThis Celestron Optical Tube Carrying Case provides a secure transport solution for your telescope, featuring a hard-shell EVA molded exterior and internal dimensions of 660mm x 356mm x 305mm. The entire case weighs only 18 lbs and is lined with 38.1mm thick foam padding to protect your 8\", 9.25\", or 11\" \u003ca href=\"\/en-int\/collections\/schmidt-cassegrain-telescopes\"\u003eSchmidt-Cassegrain\u003c\/a\u003e or EdgeHD optical tube. With built-in wheels and three handles, moving your valuable optics from your home to a dark sky site is no longer a physical strain.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCustom-Fit Protection with 38.1mm Foam Padding\u003c\/h3\u003e\n\u003cp\u003eThe case's primary function is protection, achieved through a hard yet flexible EVA molded shell that resists impacts during transit. Inside, every wall is lined with 38.1mm (1.5\") of dense foam, creating a cushioned environment that absorbs shocks and vibrations. The design also includes two movable foam spacers and an internal compression strap, allowing you to create a snug, customized fit that prevents your optical tube from shifting.\u003c\/p\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 Single Case for 8\", 9.25\", or 11\" Optical Tubes\u003c\/h3\u003e\n\u003cp\u003eThis case eliminates the need for multiple dedicated containers by offering broad compatibility with Celestron's most popular optical tubes. It is specifically designed to hold 8\", 9.25\", or 11\" SCT and EdgeHD OTAs, as well as the 8\" RASA. For ultimate convenience, it can also accommodate the entire Celestron NexStar SE 8\" or Evolution 8\"\/8HD telescope and mount assembly, allowing for a grab-and-go 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\u003eWheeled Transport with 3 Handles and Accessory Storage\u003c\/h3\u003e\n\u003cp\u003eTransporting a heavy optical tube is made simple with the case's integrated wheels and an extendable rolling handle, similar to modern luggage. For lifting into a vehicle or carrying over rough terrain, two sturdy cloth handles are placed on the top and side. An expandable zipper pocket on the exterior provides ample space for essential accessories like \u003ca href=\"\/en-int\/collections\/diagonals\"\u003ediagonals\u003c\/a\u003e, \u003ca href=\"\/en-int\/collections\/finder-scopes\"\u003efinderscopes\u003c\/a\u003e, and \u003ca href=\"\/en-int\/collections\/power-accessories\"\u003epower supplies\u003c\/a\u003e, keeping your entire kit organized in one place.\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\"\u003eWill my complete Celestron Evolution 8\" telescope and mount fit in this case?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the case is specifically designed to fit the entire Celestron Evolution 8\" or 8HD assembly, including both the optical tube and the single-fork-arm mount. The same applies to the NexStar SE 8\" telescope and mount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the foam spacers for a smaller 8\" RASA OTA?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor smaller optical tubes like the 8\" RASA or an 8\" SCT, you place the two included dense foam spacers inside the case to fill any gaps. Position them to cradle the tube securely, then use the built-in compression strap to lock it in place, preventing any movement during transport.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Celestron carrying case suitable for airline travel?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWith external dimensions of 838mm x 432mm x 406mm (33\" x 17\" x 16\"), this case will exceed standard carry-on size limits and must be checked. While the EVA shell and 38.1mm foam offer significant protection, checking an optical instrument always carries risk, and you should verify baggage policies with your airline.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the case hold a 9.25\" EdgeHD OTA with its finder and diagonal attached?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt is highly recommended to remove accessories like the finderscope and diagonal before transport. The expandable exterior pocket is designed to store these items safely. The interior is precisely shaped for the optical tube itself, and leaving accessories attached could create pressure points and risk damage.\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 expandable zipper pocket?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe expandable storage pocket provides dedicated space for your observing accessories. This allows you to carry your \u003ca href=\"\/en-int\/collections\/visual-adapters\"\u003evisual back\u003c\/a\u003e, diagonal, \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepieces\u003c\/a\u003e, finderscope, and power cables in the same case as your telescope, ensuring you have everything you need for a session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much does the Celestron Optical Tube Carrying Case weigh when empty?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe case itself weighs 18 lbs (8.16 kg) empty. This should be factored into your total transport weight, especially when adding a heavier optical tube like the 11\" SCT or EdgeHD.\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\u003e8\"\/9.25\"\/11\" SCT\/EdgeHD OTA, 8\" RASA OTA, NexStar 8\" SE \/ Evolution 8\" (Mount \u0026amp; OTA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Dimensions (LxWxH)\u003c\/td\u003e\n\u003ctd\u003e660mm x 356mm x 305mm (26\" x 14\" x 12\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Dimensions (LxWxH)\u003c\/td\u003e\n\u003ctd\u003e838mm x 432mm x 406mm (33\" x 17\" x 16\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFoam Padding Thickness\u003c\/td\u003e\n\u003ctd\u003e38.1mm (1.5\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarrying Handles\u003c\/td\u003e\n\u003ctd\u003e3 (2 cloth, 1 extendable for rolling)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e18 lbs (8.16 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterior Dimensions\u003c\/td\u003e\n\u003ctd\u003e660 x 356 x 305 mm\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\"\u003eOptical Tube Carrying Case\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:\/\/www.celestron.com\/pages\/drivers-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 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\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967182663965,"sku":"CEL-94004","price":653.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-Optical-Tube-Carrying-Case-8-9-25-11-SCT-or-EdgeHD-94004-1__60184.1594230507.1280.1280.jpg?v=1684338176"},{"product_id":"celestron-lenspen-optics-cleaning-tool","title":"Celestron LensPen Optics Cleaning Tool","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDual-function optical cleaning tool\u003c\/li\u003e\n\u003cli\u003eRetractable soft brush for removing dust and particulates\u003c\/li\u003e\n\u003cli\u003eSpecial non-liquid cleaning tip for smudges and spots\u003c\/li\u003e\n\u003cli\u003eCompact and lightweight design\u003c\/li\u003e\n\u003cli\u003eSafe for all optical equipment, including multi-coated surfaces\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\u003eCelestron LensPen Optics Cleaning Tool\u003c\/h2\u003e\n\u003cp\u003eThe Celestron LensPen is a dual-function optical cleaning tool designed to remove everything from fine dust to greasy smudges from your most sensitive optics. It combines two essential cleaning tools into a single, compact unit that is lightweight enough to live in any accessory case or camera bag. One end features a retractable, soft brush for removing loose particles, while the other holds a special cleaning tip that works without liquids to lift away fingerprints and spots, ensuring it will never dry out.\u003c\/p\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-Action Cleaning: The 2-in-1 Brush and Smudge Removal System\u003c\/h3\u003e\n\u003cp\u003eThe LensPen addresses optical contaminants in the correct sequence for safe and effective cleaning. First, the retractable soft brush gently lifts away dust, hair, or other loose particulates without scratching delicate coatings. Once the surface is free of abrasive particles, the opposite end's cleaning tip removes stubborn smudges like fingerprints and oil spots.\u003c\/p\u003e\n\u003cp\u003eThis special cleaning element handles the smudges and spots that the brush cannot remove. Because it works without liquids, it will never dry out. A protective cap keeps the tip clean and ready for its next 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\u003eUniversal Application: Safe for All Coated Optics\u003c\/h3\u003e\n\u003cp\u003eA single smudge or dust mote can compromise an entire night of observing or a critical photograph. The Celestron LensPen is engineered to be the go-to tool for any piece of optical equipment in your collection, preventing the need for time-consuming digital cleanup or the loss of an image.\u003c\/p\u003e\n\u003cp\u003eIts gentle cleaning action is safe and effective for all glass and multi-coated surfaces. This makes it an essential accessory for a wide range of gear:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTelescope Optics:\u003c\/strong\u003e \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eEyepieces\u003c\/a\u003e, lenses, filters and corrector plates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBinoculars \u0026amp; Spotting Scopes:\u003c\/strong\u003e Objective lenses and eyepiece elements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCameras:\u003c\/strong\u003e DSLR\/mirrorless lenses, filters, and viewfinders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicroscopes:\u003c\/strong\u003e Objectives and eyepieces.\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 properly use the Celestron LensPen?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAlways start with the brush. Extend the soft brush and gently sweep the entire optical surface to remove any loose dust or particles. This prevents scratching in the next step. After brushing, retract the brush, remove the cap from the other end, and use the cleaning tip in a circular motion to gently remove any smudges or fingerprints.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the LensPen safe for my expensive eyepiece coatings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The Celestron LensPen is specifically designed to be safe on all optical surfaces, including the delicate multi-layer coatings found on high-end eyepieces, \u003ca href=\"\/en-int\/collections\/camera-lenses-and-adapters\"\u003ecamera lenses\u003c\/a\u003e, and telescope correctors. The soft brush and non-liquid cleaning tip remove contaminants without causing scratches or chemical damage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the LensPen cleaning tip ever dry out?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The cleaning tip works without liquids, so it will never dry out or leak in your accessory case. Simply replace the protective cap after each use to keep the tip clean.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Celestron LensPen to clean my telescope's primary mirror?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile the LensPen is excellent for spot-cleaning smaller optics like eyepieces or a corrector plate on an SCT, it is generally not recommended for cleaning an entire primary mirror on a \u003ca href=\"\/en-int\/collections\/reflectors\"\u003ereflector\u003c\/a\u003e. Large, exposed mirrors are best cleaned using traditional wet-cleaning methods to avoid accidentally smearing contaminants across the whole surface.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I know when the LensPen needs to be replaced?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIf, after many uses, you notice the cleaning tip starting to smear smudges rather than remove them, it's time to replace your LensPen.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat's the advantage of the LensPen over a microfiber cloth?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA microfiber cloth can trap abrasive dust particles and smear oils if not perfectly clean. The LensPen's two-step process is inherently safer: the brush removes the abrasive dust first, and the cleaning tip then removes any remaining smudges and spots. It's a more targeted and reliable cleaning system.\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\u003eCleaning Method\u003c\/td\u003e\n\u003ctd\u003eDual-action: Retractable Brush \u0026amp; Non-Liquid Cleaning Tip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eEyepieces, Lenses, Filters, and other optical surfaces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafe for Coatings\u003c\/td\u003e\n\u003ctd\u003eYes, including multi-coated optics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLiquid-Free\u003c\/td\u003e\n\u003ctd\u003eYes\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\"\u003eCelestron LensPen Optics Cleaning Tool\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\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967182696733,"sku":"CEL-93575","price":18.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-LensPen-Optics-Cleaning-Tool-93575-1__15691.1594230508.1280.1280.jpg?v=1684338181"},{"product_id":"celestron-collimation-eyepiece-1-25-in","title":"Celestron Collimation Eyepiece 1.25 in","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003ePrecise Newtonian \u0026amp; SCT Collimation\u003c\/li\u003e\n\u003cli\u003eFits Standard 1.25\" Focusers and Diagonals\u003c\/li\u003e\n\u003cli\u003eBright Internal Surface for Viewing Mirror Reflections\u003c\/li\u003e\n\u003cli\u003eIntegrated Crosshairs for Centering Optics\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\u003eCelestron Collimation Eyepiece - 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe Celestron \u003ca href=\"\/en-int\/collections\/collimation-tools\"\u003eCheshire\u003c\/a\u003e Collimation Eyepiece provides a simple, highly accurate method for aligning the optics in your telescope. Designed to fit any standard 1.25\" \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e or \u003ca href=\"\/en-int\/collections\/diagonals\"\u003ediagonal\u003c\/a\u003e, this tool uses a combination of a peephole and crosshairs to ensure your \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonian\u003c\/a\u003e or \u003ca href=\"\/en-int\/collections\/schmidt-cassegrain-telescopes\"\u003eSchmidt-Cassegrain telescope\u003c\/a\u003e's optical components are perfectly centered for sharp, high-contrast views.\u003c\/p\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 Cheshire Design: A Crosshair System for 1.25\" Focusers\u003c\/h3\u003e\n\u003cp\u003eThis collimation tool operates on the elegant principle of the Cheshire eyepiece. By looking through the small peephole at the top, you view the reflection of thin crosshairs against your telescope's mirrors. The internal surfaces are brightly finished to make the faint reflections of your primary and secondary mirrors easy to see, even in low light.\u003c\/p\u003e\n\u003cp\u003eThe goal is to adjust your telescope's optics until all the reflected elements, including the crosshairs, are perfectly concentric. This battery-free, robust design has no lasers to go out of alignment, making it a reliable tool for achieving and maintaining peak optical performance from your 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\u003eNewtonian and SCT Collimation: Achieving Precise Optical Alignment\u003c\/h3\u003e\n\u003cp\u003eFor Newtonian reflectors, the Celestron Collimation Eyepiece is an essential accessory for aligning the secondary and primary mirrors. It allows you to precisely center the secondary mirror under the focuser and then adjust the primary mirror's tilt, ensuring the entire optical path is correctly aligned for pinpoint stars across the field.\u003c\/p\u003e\n\u003cp\u003eWhile SCTs hold collimation well, they occasionally require fine-tuning, especially after transport. This eyepiece is helpful for confirming the alignment of an SCT by checking the concentricity of the secondary mirror's reflection, allowing you to make small adjustments for the sharpest possible planetary and deep-sky images.\u003c\/p\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 Eyepiece vs. Simple Cap: Why This Tool is More Accurate\u003c\/h3\u003e\n\u003cp\u003eMany beginner telescopes include a basic collimation cap—a simple plastic cap with a central pinhole. While better than nothing, the cap lacks the precision of the Cheshire eyepiece. The Celestron Collimation Eyepiece is more accurate because its crosshairs provide a much finer reference for centering optical elements.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearer Reference:\u003c\/strong\u003e The crosshairs are easier to align perfectly than a single, often imprecise, central dot seen in a simple cap.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrighter View:\u003c\/strong\u003e The side opening on the Cheshire illuminates the interior, making the reflections of your mirrors significantly brighter and easier to see than through a dark plastic cap.\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 Celestron Collimation Eyepiece with my 8\" f\/5 Newtonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInsert the 1.25\" eyepiece into your focuser. Point the telescope at a bright surface. First, adjust your secondary mirror until the reflection of the primary mirror is centered in the crosshairs. Then, adjust the primary mirror's collimation screws until the reflection of the peephole is centered within the reflection of your primary mirror's center mark. When all reflections are concentric, you are collimated.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this Collimation Eyepiece better than a laser collimator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eEach tool has advantages. A Cheshire eyepiece like this one cannot go out of alignment itself, making it very reliable. It is also excellent for setting the secondary mirror position, which a single-beam laser cannot do. A laser is often faster for primary mirror alignment, but a misaligned laser can make your telescope's collimation worse. Many experienced astronomers use both: the Cheshire for the secondary and the laser for a quick primary check.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Celestron Collimation Eyepiece help align a Schmidt-Cassegrain (SCT)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor an SCT, you use this eyepiece to check the centering of the secondary mirror's reflection. While final, precise collimation of an SCT must be done on a star, this tool provides a useful daytime check to ensure the optical components are roughly aligned before you start a star test. It helps you get close, minimizing the adjustments needed at night.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this 1.25\" Celestron Collimation Eyepiece require batteries?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, it is a purely optical and mechanical tool. It uses ambient light, which enters through the cut-out on the side, to illuminate the internal crosshairs and your view of the mirrors. It requires no power to operate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat will I see when looking through the Collimation Eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou will see a series of reflections. You'll see the crosshairs of the eyepiece itself, the reflection of your secondary mirror, the reflection of the primary mirror inside the secondary, and the reflection of the eyepiece and your eye within the primary. The goal is to make all these reflections perfectly centered, like a series of nested doughnuts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Collimation Eyepiece work with my refractor telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eGenerally, \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractors\u003c\/a\u003e do not require routine collimation by the user, and this tool is not designed for them. The Celestron Collimation Eyepiece is specifically designed for the optical systems of Newtonian reflectors and, to a lesser extent, Schmidt-Cassegrains.\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\u003eEyepiece Type\u003c\/td\u003e\n\u003ctd\u003eCollimation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e2-Year Warranty\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\u003cimg class=\"DAV-img-box\" alt=\"Celestron Collimation Eyepiece - 1.25\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/94182-A_1.jpg?v=1685719391\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCelestron Collimation 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\u003ca href=\"https:\/\/davidastro.com\/pages\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967182762269,"sku":"CEL-94182","price":49.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-Collimation-Eyepiece-1-25-in-94182-1__54468.1594230508.1280.1280.jpg?v=1684338182"},{"product_id":"celestron-night-vision-flashlight","title":"Celestron Night Vision Flashlight","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDual red LEDs preserve dark-adapted vision\u003c\/li\u003e\n\u003cli\u003eVariable brightness controlled by a simple thumbwheel\u003c\/li\u003e\n\u003cli\u003eSquare shape prevents rolling off observing tables\u003c\/li\u003e\n\u003cli\u003eIncludes a 9V battery for immediate use\u003c\/li\u003e\n\u003cli\u003eLanyard allows for convenient, hands-free carrying\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\u003eCelestron Night Vision Flashlight\u003c\/h2\u003e\n\u003cp\u003eThe Celestron Night Vision Flashlight uses two red LEDs to illuminate your observing area without resetting your eyes' dark adaptation. It includes one 9V battery and comes with a 2-year warranty, ensuring you can find your charts and accessories while preserving your ability to see faint deep-sky 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\u003eDual Red LEDs: Preserve Your Night Vision for Maximum Detail\u003c\/h3\u003e\n\u003cp\u003eAny exposure to white light, however brief, causes the pupils to contract, instantly reducing your ability to see faint detail at the \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepiece\u003c\/a\u003e. This flashlight uses two red LEDs, a wavelength that does not trigger this response, allowing you to read \u003ca href=\"\/en-int\/collections\/books-and-charts\"\u003estar charts\u003c\/a\u003e, locate eyepieces, or navigate cables while keeping your eyes fully dark-adapted. Maintaining your night vision is critical for resolving faint spiral arms in galaxies or subtle wisps of nebulosity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eNo-Roll Design with Variable Brightness Control\u003c\/h3\u003e\n\u003cp\u003eDesigned for practical use in the field, the Celestron Night Vision Flashlight has a square profile that keeps it from rolling off your observing table. A simple thumbwheel gives you precise control over the brightness, letting you dial it down for reading a star chart right next to you or increasing it to locate an item in your accessory case. The included lanyard allows you to wear it around your neck, keeping it accessible without occupying a hand.\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 is a red flashlight like the Celestron Night Vision Flashlight essential for astronomy?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eHuman eyes adapt to darkness over about 30 minutes, a state called \"dark adaptation.\" White light from a standard flashlight or phone screen immediately reverses this process. The red light from the Celestron Night Vision Flashlight doesn't affect your night vision, allowing you to see your equipment and charts without losing the ability to see faint objects through the telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I adjust the brightness on the Celestron Night Vision Flashlight?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe flashlight features an integrated thumbwheel. Simply roll the wheel with your thumb to smoothly increase or decrease the intensity of the two red LEDs to the exact level you need for your task, from faint illumination for charts to brighter light for setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Celestron Night Vision Flashlight suitable for star parties?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it's considered essential etiquette. Using a \u003ca href=\"\/en-int\/collections\/red-lights-and-observing-gear\"\u003ered flashlight\u003c\/a\u003e prevents you from ruining the night vision of other observers. Its variable brightness is also a key feature, allowing you to use the minimum light necessary and be considerate of those around you.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of battery does the Celestron Night Vision Flashlight use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt uses a single 9V battery, which is included with the flashlight. This provides long-lasting power for many observing sessions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the flashlight roll if I place it on a slanted surface like my car's hood?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, it is specifically designed with a square body to prevent it from rolling. You can set it down on your observing table, mount, or other flat surface without worrying about it falling to the ground.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Celestron Night Vision Flashlight while wearing it?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, a lanyard is included so you can wear the flashlight around your neck. This keeps it readily available for quick tasks without needing to hold it or set it down, which is especially useful when you're at the eyepiece or handling delicate accessories.\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\u003eIllumination\u003c\/td\u003e\n\u003ctd\u003e2 x Red LEDs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrightness Control\u003c\/td\u003e\n\u003ctd\u003eVariable via thumbwheel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Shape\u003c\/td\u003e\n\u003ctd\u003eSquare (Anti-Roll)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Source\u003c\/td\u003e\n\u003ctd\u003e9V Battery (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Accessories\u003c\/td\u003e\n\u003ctd\u003eLanyard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e2-Year Warranty\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\u003cimg class=\"DAV-img-box\" alt=\"Celestron Night Vision Flashlight\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/93588.jpg\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eNight Vision Flashlight\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\u003cimg class=\"DAV-img-box\" alt=\"9V Battery\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/9V-Battery.jpg?v=1782200427\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e9V Battery\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\u003cimg class=\"DAV-img-box\" alt=\"Lanyard for Celestron Flashlight\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Lanyard.jpg?v=1782200427\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eLanyard\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\/Celestron_Night_Vision_Flashlight_Manual.pdf?v=1782200159\" 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\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Limited Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967183876381,"sku":"CEL-93588","price":29.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-Night-Vision-Flashlight-93588-1__54927.1594230518.1280.1280.jpg?v=1684338352"},{"product_id":"explore-scientific-tirion-double-sided-multi-latitude-planisphere","title":"Explore Scientific Tirion Double-Sided Multi-Latitude Planisphere","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDouble-Sided Design Reduces Distortion\u003c\/li\u003e\n\u003cli\u003eMulti-Latitude for Northern Hemisphere Observers\u003c\/li\u003e\n\u003cli\u003eCelestial Cartography by Wil Tirion\u003c\/li\u003e\n\u003cli\u003eDurable Plastic Construction with Brass Rivets\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\u003eExplore Scientific Tirion Double-Sided Multi-Latitude Planisphere\u003c\/h2\u003e\n\u003cp\u003eThe Explore Scientific Tirion Double-Sided Multi-Latitude Planisphere is an essential analog tool for navigating the night sky from a wide range of northern hemisphere locations. Authored by renowned cartographer Wil Tirion, its unique double-sided chart significantly reduces the projection distortion found in common planispheres, providing a more accurate representation of the constellations for any night of the year.\u003c\/p\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 Double-Sided Solution to Planisphere Distortion\u003c\/h3\u003e\n\u003cp\u003eTraditional single-disc planispheres must compromise when projecting the entire celestial sphere onto a flat surface, leading to stretched and distorted constellations far from the celestial pole. The Tirion Planisphere solves this by splitting the sky into two halves. One side shows the northern circumpolar sky, while the other displays the southern sky as viewed from the northern hemisphere, resulting in a far more accurate and intuitive star chart.\u003c\/p\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 Celestial Cartography of Wil Tirion\u003c\/h3\u003e\n\u003cp\u003eThe name Wil Tirion is synonymous with clarity and accuracy in celestial mapping. As the cartographer behind some of the most respected star atlases used by amateur and professional astronomers, his work on this planisphere ensures that the positions, shapes, and brightness of stars are rendered with precision. This isn't just a generic star chart; it's a carefully designed navigational instrument from a master of the craft.\u003c\/p\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 for Years of Night Sky Navigation\u003c\/h3\u003e\n\u003cp\u003eDesigned for repeated use in the field, the Tirion Planisphere is constructed from durable, dew-resistant plastic that withstands the rigors of outdoor observing sessions. The two discs are joined by a corrosion-resistant brass rivet, ensuring a smooth, reliable turning motion that won't seize up or degrade over time. It's a robust tool built to be a permanent part of your observing 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\u003eTirion Planisphere vs. Standard Single-Sided Planispheres\u003c\/h3\u003e\n\u003cp\u003eWhile any planisphere can show you what's up in the sky, the Tirion design offers distinct advantages over simpler, single-sided models.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Planisphere's Weakness:\u003c\/strong\u003e Single-sided charts suffer from significant distortion near the southern horizon, making constellations like Scorpius or Sagittarius appear unnaturally stretched and difficult to recognize.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTirion Planisphere's Advantage:\u003c\/strong\u003e By using a dedicated chart for the southern aspect of the sky, the Tirion planisphere presents these constellations with much greater fidelity. This makes it easier to star-hop and identify objects low on the horizon. It also provides greater utility across a wider range of latitudes without requiring a different planisphere for each location.\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 Tirion Planisphere's double-sided design work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eExplore Scientific Tirion Planisphere\u003c\/strong\u003e uses two separate star charts to minimize distortion. One side is a polar projection of the northern sky (containing Polaris, Ursa Major, etc.), and the flip side is a separate projection for the southern sky as seen from northern latitudes (containing Scorpius, Sagittarius, etc.). This avoids trying to flatten the entire celestial sphere onto one map, resulting in more accurately shaped constellations, especially those near the celestial equator and southern horizon.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat latitudes is the Explore Scientific Tirion Planisphere designed for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis planisphere is designed for a \u003cstrong\u003ewide range of northern hemisphere latitudes\u003c\/strong\u003e. While a specific range isn't printed, its multi-latitude design makes it functional for most observers in North America, Europe, and Asia. The separate north and south-facing charts make it more adaptable than planispheres fixed to a single 10-degree latitude band.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Tirion Planisphere durable enough for camping and field use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The planisphere is made from \u003cstrong\u003edew-resistant plastic\u003c\/strong\u003e and assembled with a \u003cstrong\u003enon-corroding brass rivet\u003c\/strong\u003e. This construction is specifically intended to hold up to the moisture and handling typical of outdoor observing sessions, making it a reliable tool for use at dark-sky sites or on camping trips.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the Tirion Planisphere to find the Andromeda Galaxy (M31) from my backyard?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFirst, orient yourself by finding the constellation Cassiopeia, which looks like a \"W\" or \"M\". On the \u003cstrong\u003eTirion Planisphere\u003c\/strong\u003e, locate Cassiopeia. M31 is shown as a small oval shape nearby. The planisphere will show you that by following the stars of the Great Square of Pegasus to the constellation Andromeda, you can star-hop to M31. Set the planisphere to your current date and time to see where Andromeda will be in your sky.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm a beginner with a new 8\" Dobsonian. Is the Explore Scientific Tirion Planisphere a good first star map?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. An 8\" Dobsonian has a narrow field of view, so knowing where to point it is critical. The \u003cstrong\u003eTirion Planisphere\u003c\/strong\u003e is an excellent starting tool because it gives you the \"big picture\" of the sky for any given night. It helps you learn the major constellations and brightest stars, which are the signposts you'll use to navigate to fainter deep-sky objects like the Orion Nebula (M42) or the Hercules Cluster (M13).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is a planisphere by Wil Tirion considered a high-quality chart?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eWil Tirion\u003c\/strong\u003e is one of the world's most respected celestial cartographers, famous for creating the charts in definitive atlases like \u003cem\u003eSky Atlas 2000.0\u003c\/em\u003e. His charts are known for their accuracy, clarity, and intuitive design. A planisphere with his name on it guarantees a level of cartographic quality and reliability that is trusted by astronomers worldwide.\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\u003eGTIN\u003c\/td\u003e\n\u003ctd\u003e8118030305346\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\"\u003eTirion Double-Sided Multi-Latitude Planisphere\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\/explore-scientific-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eExplore Scientific North America Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":44967208911133,"sku":"ES-TPS018","price":35.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/ExploreScientific-Tirion-Double-Sided-Multi-Latitude-Planisphere-1_67758d8d-d314-455a-a9d9-5de29ce3b9cd.jpg?v=1789061768"},{"product_id":"explore-scientific-soft-sided-eyepiece-case","title":"Explore Scientific Soft-Sided Eyepiece Case - EPWP KIT Case","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eSoft-sided, compact design for easy transport\u003c\/li\u003e\n\u003cli\u003eLayered EVA foam and rigid PE board for protection\u003c\/li\u003e\n\u003cli\u003eKeeps contents from shifting between compartments\u003c\/li\u003e\n\u003cli\u003eIdeal for eyepieces, cables, batteries, and other small accessories\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\u003eSoft-Sided Eyepiece Case - EPWP KIT Case\u003c\/h2\u003e\n\u003cp\u003eThe Explore Scientific Soft-Sided Eyepiece Case provides a compact and secure storage solution for your essential eyepieces and accessories. This is the official case included with Explore Scientific's 62°, 68°, 82°, and 100° eyepiece kits, built with a layered combination of protective EVA foam and a rigid PE board. It's designed to organize your gear and keep it safe, whether stored in a larger bag or carried 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\u003eProtective Storage: EVA Foam and Rigid PE Board Construction\u003c\/h3\u003e\n\u003cp\u003eThis case uses a multi-layer construction to safeguard your optics. The walls and dividers feature soft, impact-absorbing EVA foam bonded to a rigid Polyethylene (PE) board. This design prevents eyepieces and accessories from shifting between compartments and protects them from the bumps and scrapes of transport. While a soft case is lighter than a hard-sided alternative, this reinforced structure offers a significant step up in protection from a standard padded bag.\u003c\/p\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 Official Case for Your Explore Scientific Eyepiece Collection\u003c\/h3\u003e\n\u003cp\u003eIf you've built your eyepiece collection one piece at a time, this is the perfect way to give them the organized protection they deserve. The EPWP KIT Case is the same one trusted to house the complete Explore Scientific eyepiece sets. Its versatile interior is ideal for organizing everything from eyepieces and Barlows to small batteries, cables, and other critical accessories you need for a night of observing.\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 Soft-Sided Eyepiece Case designed to hold?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe EPWP KIT Case is primarily designed to hold a set of 1.25\" or 2\" eyepieces, such as those in the Explore Scientific 62°, 68°, 82°, and 100° series. Its configurable interior also makes it ideal for organizing smaller accessories like filters, Barlow lenses, diagonals, batteries, and cables.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this the same case that comes with the Explore Scientific 82° eyepiece kits?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is the exact same compact, soft-sided case that Explore Scientific includes with their 62°, 68°, 82°, and 100° eyepiece kits. It's an excellent option if you purchased your eyepieces individually and now want the official, purpose-built case for them.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the EPWP KIT Case protect my eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe case features a layered construction for protection. The key components are:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEVA Foam:\u003c\/strong\u003e A dense, closed-cell foam that provides cushioning against impacts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRigid PE Board:\u003c\/strong\u003e A polyethylene sheet integrated into the walls and dividers that adds structural integrity and prevents the case from being easily crushed. This also keeps items from shifting between compartments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Soft-Sided Eyepiece Case for other brands of eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. While it is the official case for Explore Scientific eyepieces, its versatile and protective design makes it a great storage solution for any brand of eyepieces and similarly sized astronomical accessories that you want to keep organized and safe.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm traveling to a dark sky site; is the EPWP KIT Case a good choice to put inside a larger duffel bag?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is an ideal use case. The case's semi-rigid construction protects your eyepieces from other items in your main travel bag, while its compact form factor doesn't add excessive bulk. It keeps all your essential small accessories in one place so they are easy to find in the dark.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill my Explore Scientific 100° eyepieces and a 2\" diagonal fit in the EPWP KIT Case?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe case is designed to hold eyepieces from the 100° series. The fit for a specific combination of eyepieces and a 2\" diagonal will depend on the configuration of the internal dividers. The case is versatile, but for larger accessories like a 2\" diagonal, you may need to arrange the dividers to create a custom-shaped compartment.\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\u003eGTIN\u003c\/td\u003e\n\u003ctd\u003e8118030316618\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\"\u003eSoft-Sided Eyepiece Case - EPWP KIT Case\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\/explore-scientific-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eExplore Scientific Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":44967208943901,"sku":"ES-EPCASE-02","price":56.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/ExploreScientific-Soft-Sided-Eyepiece-Case-EPWP-KIT-Case-1_5ef27de0-af31-4230-ae57-5bb6da1fd72f.jpg?v=1789061720"},{"product_id":"explore-scientific-soft-sided-telescope-case","title":"Explore Scientific Soft-Sided Telescope Case","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned for ED127, ED127CF, DAR127 \u0026amp; DAR152 Models\u003c\/li\u003e\n\u003cli\u003eAdjustable Velcro Compartments for Telescope \u0026amp; Accessories\u003c\/li\u003e\n\u003cli\u003ePadded Polyester Outer Shell with Reinforced Sides\u003c\/li\u003e\n\u003cli\u003eLight Gray Nylon Interior for Visibility\u003c\/li\u003e\n\u003cli\u003eIncludes Padded Shoulder Strap and Hand Straps\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\u003eExplore Scientific Soft-Sided Telescope Case\u003c\/h2\u003e\n\u003cp\u003eThe Explore Scientific Soft-Sided Telescope Case provides a custom-fit transport and storage solution, specifically engineered for the ED127, ED127CF, DAR127, and DAR152 refractor models. Its configurable interior with adjustable velcro compartments secures your optical tube, eyepieces, and accessories within a padded, reinforced shell designed for grab-and-go convenience.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCustom-Fit for Select Explore Scientific Refractors\u003c\/h3\u003e\n\u003cp\u003eThis case is purpose-built to provide a snug, secure fit for specific Explore Scientific telescopes: the ED127, ED127CF, DAR127, and DAR152. Inside, the light gray nylon interior features multiple adjustable velcro compartments, allowing you to create a custom layout that cradles your optical tube while organizing essential accessories like your diagonal, finder scope, and eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePadded \u0026amp; Reinforced Shell for Field Protection\u003c\/h3\u003e\n\u003cp\u003eProtecting your instrument during transit is critical. The case's exterior is constructed from a durable, padded polyester material designed to absorb minor impacts. For added rigidity and protection against sharper blows, the back and sides of the case are reinforced, ensuring your telescope is shielded whether it's in the back of your car or in storage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eGrab-and-Go Straps for Easy Transport\u003c\/h3\u003e\n\u003cp\u003eDesigned for portability, this soft-sided case features multiple carrying options. A comfortable, padded shoulder strap bearing the embroidered Explore Scientific logo allows for hands-free transport, while robust hand straps provide a quick grab-and-go option for moving your setup short distances.\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\"\u003eWill the Explore Scientific Soft-Sided Case fit other telescopes like a 130mm refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis case is specifically designed for the Explore Scientific ED127, ED127CF, DAR127, and DAR152 models. While other telescopes with similar dimensions might fit, we cannot guarantee a secure and proper fit. Using the case for unintended models may not provide adequate protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much gear can I fit in the Explore Scientific case besides the ED127 telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe interior is designed to be configured using adjustable velcro dividers. This allows you to create separate, padded compartments for essential accessories alongside the main optical tube. You can typically fit:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA 2-inch diagonal\u003c\/li\u003e\n\u003cli\u003eA finder scope or red-dot finder\u003c\/li\u003e\n\u003cli\u003eSeveral 1.25\" or 2\" eyepieces\u003c\/li\u003e\n\u003cli\u003eCables and other small items\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 padding in the Explore Scientific case sufficient for checking as airline baggage?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This is a soft-sided case designed for personal transport in a vehicle and for storage. It does not provide the rigid protection required to safeguard an optical instrument from the severe handling involved in airline baggage systems. For air travel, a hard-sided case with custom-cut foam is strongly recommended.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the adjustable compartments in the Explore Scientific case for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adjustable compartments are padded dividers with velcro edges that attach to the case's interior lining. They allow you to customize the internal layout to fit your specific set of accessories, preventing them from shifting during transit and potentially scratching or damaging the telescope tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have an Explore Scientific DAR152 with its finder and diagonal attached; will it fit in this case?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor the most secure fit and best protection, you should detach accessories like the finder scope and diagonal from the main telescope tube. The case's adjustable dividers are designed to create separate, secure spots for these items, ensuring nothing comes loose and causes damage during transport.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this Explore Scientific case for long-term storage of my ED127CF?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the case is an excellent solution for protecting your telescope from dust and minor bumps during storage. For long-term storage, especially in a non-climate-controlled area like a garage, it is also recommended to place a large desiccant pack inside the case to absorb moisture and prevent fungal growth on the optics.\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\u003eGTIN\u003c\/td\u003e\n\u003ctd\u003e8122570165704\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\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/explore-scientific-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eExplore Scientific Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":44967209074973,"sku":"ES-SSCC-03","price":294.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/ExploreScientific-Soft-Sided-Telescope-Case-1_904e58c9-6fc6-4e78-b258-d40345bdd8b7.jpg?v=1789061682"},{"product_id":"explore-scientific-ed80-case","title":"Explore Scientific ED80 Case","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned specifically for Explore Scientific ED80 Telescopes\u003c\/li\u003e\n\u003cli\u003eExterior Dimensions: 18\" x 13\" x 8\"\u003c\/li\u003e\n\u003cli\u003eWeight: 11 lb (5.0 kg)\u003c\/li\u003e\n\u003cli\u003eInterior: Pre-molded custom-fit foam for OTA and accessories\u003c\/li\u003e\n\u003cli\u003eExterior: Hard shell with reinforced edges and locking clamps\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\u003eExplore Scientific ED80 Case\u003c\/h2\u003e\n\u003cp\u003eThe Explore Scientific ED80 Case provides dedicated, form-fitting protection for your ED80 \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractor\u003c\/a\u003e, housed within a rugged 18\" x 13\" x 8\" hard shell. Weighing 11 lb (5.0 kg), this case features a pre-molded foam interior designed to securely cradle the optical tube and its primary accessories during transport and storage, eliminating the risk of movement and impact damage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAn 18\" x 13\" x 8\" Case: Custom-Fitted for the ED80 OTA\u003c\/h3\u003e\n\u003cp\u003eUnlike generic cases that require you to cut and shape foam, this case is engineered specifically for the Explore Scientific ED80. The foam is pre-molded to the exact contours of the optical tube, ensuring a perfect, secure fit from the moment you open the box. Additional fitted housings provide organized storage for essential accessories like your \u003ca href=\"\/en-int\/collections\/diagonals\"\u003ediagonal\u003c\/a\u003e, \u003ca href=\"\/en-int\/collections\/finder-scopes\"\u003efinder scope\u003c\/a\u003e, and \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepieces\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\u003eHard-Shell Construction: 11 lb of Reinforced Protection\u003c\/h3\u003e\n\u003cp\u003eThe exterior of the case is built to withstand the rigors of travel to and from your observing site. At a substantial 11 lb, the hard shell features reinforced edges that absorb impact and resist crushing. Sturdy grab-and-go handles and a secure clamping lock system ensure your telescope remains protected whether it's in the back of your car or in storage at home.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBeyond Generic Foam: Why an 11 lb Fitted Case Matters\u003c\/h3\u003e\n\u003cp\u003eWhile a generic case with pluck-foam offers flexibility, it cannot match the precise security of a fitted solution. A generic case's primary advantage is its ability to be repurposed for other gear. However, for your ED80, this custom case provides superior protection by eliminating any possibility of the telescope shifting during transit. This prevents loss of collimation and protects the \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e and finish, ensuring your instrument is ready for observation the moment you arrive.\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 Explore Scientific ED80 Case compatible with other 80mm telescopes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this case is not recommended for other telescopes. The interior foam is specifically molded to the dimensions and contours of the Explore Scientific ED80 refractor and its accessories. Using it for other models will likely result in a poor, insecure fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the exact dimensions and weight of the Explore Scientific ED80 Case?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe case has exterior dimensions of \u003cstrong\u003e18\" in length, 13\" in width, and 8\" in height\u003c\/strong\u003e. It weighs \u003cstrong\u003e11 pounds (5.0 kg)\u003c\/strong\u003e empty.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the foam in the Explore Scientific ED80 Case have space for accessories?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The molded foam interior includes fitted housings not only for the main telescope tube but also for standard accessories. This allows you to carefully organize and protect items like a diagonal, finder scope, or eyepieces alongside your telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI travel to dark sky sites with my Explore Scientific ED80. Is this case durable enough for car travel?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The case is designed for transit. Its hard outer shell, reinforced edges, and secure clamping lock system provide excellent protection against the bumps and shifts that occur during car travel, ensuring your telescope arrives safely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 11 lb weight of the Explore Scientific ED80 Case affect portability for field use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 11 lb weight reflects its robust, protective construction. While heavier than a soft bag, the case is equipped with sturdy, well-placed handles for manageable transport. The security it provides for your optics during transit is the critical trade-off for its weight.\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\u003eLength\u003c\/td\u003e\n\u003ctd\u003e18\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e13\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e11 lb; 5.0 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHolds\u003c\/td\u003e\n\u003ctd\u003eExplore Scientific ED80 and accessories\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\"\u003eExplore Scientific ED80 Case\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\/explore-scientific-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eExplore Scientific Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":44967209107741,"sku":"ES-CC080-01","price":349.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Explore-Scientific-ED80-Case-CC080-01-1__29531.1594240408.1280.1280.jpg?v=1684338939"},{"product_id":"explore-scientific-astro-r-lite-red-flashlight","title":"Explore Scientific Astro R-Lite Red Flashlight","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eVariable intensity red LED light to protect dark-adapted vision\u003c\/li\u003e\n\u003cli\u003eThree lighting modes: high, low, and flashing signal\u003c\/li\u003e\n\u003cli\u003eDurable, weather-resistant aluminum body\u003c\/li\u003e\n\u003cli\u003eCompact, pocket-sized design with built-in clip\u003c\/li\u003e\n\u003cli\u003ePowered by a single, widely available AA battery (not included)\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\u003eExplore Scientific Astro R-Lite Red Flashlight\u003c\/h2\u003e\n\u003cp\u003eThe Explore Scientific Astro R-Lite Red Flashlight provides essential, night-vision-safe illumination with 3 distinct modes (high, low, and flash) all powered by a single, common AA battery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePreserving Night Vision with Variable Red Light\u003c\/h3\u003e\n\u003cp\u003eThe Astro R-Lite is engineered for one primary purpose: to let you see in the dark without losing your dark adaptation. The red LED output prevents your pupils from constricting, allowing you to read a star chart, find an eyepiece, or adjust your mount, then immediately return to observing. A unique sliding control lets you fine-tune the beam intensity on both high and low modes, giving you the precise amount of light needed for any task.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e3-Mode Operation for Versatile Field Use\u003c\/h3\u003e\n\u003cp\u003eA single orange button on the end cap cycles through the Astro R-Lite's three functions. Use the low-power mode for close-up tasks like reading charts, switch to high-power for illuminating a wider area around your setup, and use the flashing mode as a helpful signal to locate your position at a dark-sky site or during a star party.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eRugged Construction for All-Weather Reliability\u003c\/h3\u003e\n\u003cp\u003eBuilt from a tough aluminum body, the Astro R-Lite is designed to handle the rigors of field astronomy. It can withstand accidental drops, heavy rain, and even brief submersion in water, ensuring it works when you need it. A built-in pocket clip and an included neck strap keep the flashlight secure and accessible at all times, whether it's clipped to your belt or hanging around your neck.\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 adjust the brightness of the Astro R-Lite?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Astro R-Lite features a \u003cstrong\u003esliding control\u003c\/strong\u003e on its body. This allows you to smoothly vary the beam intensity when the flashlight is in either high or low mode, giving you precise control over the amount of light for different tasks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of battery does the Astro R-Lite use and is it included?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Astro R-Lite is powered by a \u003cstrong\u003esingle AA battery\u003c\/strong\u003e. This makes finding a replacement easy, even when you're away from home. Please note that the battery is \u003cstrong\u003enot included\u003c\/strong\u003e with the flashlight.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Explore Scientific Astro R-Lite waterproof?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Astro R-Lite is highly weather-resistant. It is designed to operate in heavy rain and snow and can withstand accidental drops and \u003cstrong\u003ebrief water submersions\u003c\/strong\u003e. However, it is not rated for extended underwater use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Astro R-Lite's red light help with finding the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen you're trying to spot a faint, diffuse object like the Andromeda Galaxy (M31), you need your eyes to be fully dark-adapted. If you look at a white-light phone screen or flashlight, your pupils will contract, and you'll lose that adaptation. The \u003cstrong\u003eAstro R-Lite's red light\u003c\/strong\u003e allows you to read your star chart to locate M31 without resetting your night vision, making the galaxy much easier to see through the eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Astro R-Lite's flashing mode for signaling at a star party?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. The flashing mode is ideal for signaling your location to others in a dark field without disrupting their night vision. It's an effective way to get someone's attention or help friends find your setup among other telescopes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm setting up my 8\" Dobsonian; which Astro R-Lite mode is best for seeing my eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor organizing accessories like eyepieces right next to your 8\" Dobsonian, the \u003cstrong\u003elow-power mode\u003c\/strong\u003e is your best choice. You can then use the sliding control to dim the beam to the absolute minimum required to identify your eyepieces. This provides just enough light for the task while maximally preserving your dark adaptation.\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\u003eGTIN\u003c\/td\u003e\n\u003ctd\u003e8118030301140\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\"\u003eAstro R-Lite Red Flashlight\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\"\u003eNeck Strap\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\/Explore_Scientific_ES-FL1001_Astro_R-Lite_Red_Flashlight_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\/Explore_Scientific_ES-FL1001_Astro_R-Lite_Red_Flashlight_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\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/explore-scientific-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eExplore Scientific Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":44967209566493,"sku":"ES-FL1001","price":42.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/ExploreScientific-Astro-R-Lite-Red-Flashlight-1_d5970038-1f15-491b-bed5-0421509b842f.jpg?v=1789061754"},{"product_id":"william-optics-carry-soft-case-for-flt132","title":"William Optics Carry Soft Case for FLT132","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned specifically for the William Optics FLT132 refractor\u003c\/li\u003e\n\u003cli\u003eEnsures a precise, secure fit for the optical tube\u003c\/li\u003e\n\u003cli\u003eSoft-sided construction for lightweight portability\u003c\/li\u003e\n\u003cli\u003eProtects against dust and scuffs during transport\u003c\/li\u003e\n\u003cli\u003eDurable handles for easy carrying\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 Carry Soft Case for FLT132\u003c\/h2\u003e\n\u003cp\u003eSafeguard your William Optics FLT132 \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractor\u003c\/a\u003e with the official soft \u003ca href=\"\/en-int\/collections\/cases-and-covers\"\u003ecarrying case\u003c\/a\u003e designed by the manufacturer. This case provides a lightweight and convenient solution for transporting your telescope to and from your favorite observing sites, protecting it from dust and scuffs along the way. Engineered for a perfect fit, it eliminates the bulk and weight of a traditional hard case.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCustom-Fit Protection for the William Optics FLT132\u003c\/h3\u003e\n\u003cp\u003eWilliam Optics makes this soft case for the FLT132 \u003ca href=\"\/en-int\/collections\/optical-tubes\"\u003eoptical tube assembly\u003c\/a\u003e. Durable carry handles make it easy to move your instrument from your home to your vehicle and out to the field, offering a practical layer of defense for your investment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eImportant Note: Foam Insert Not Included\u003c\/h3\u003e\n\u003cp\u003eWilliam Optics supplies this soft carrying case without a foam insert, so plan your own padding for the telescope.\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\"\u003eDoes this William Optics soft case for the FLT132 come with foam?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this case \u003cstrong\u003edoes not include a foam insert\u003c\/strong\u003e. Plan your own padding for the telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the advantages of this soft case for the FLT132 compared to a hard case?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantages are weight and portability. A soft case is significantly lighter and less bulky than a hard-sided case, making it easier to carry and store. It offers excellent protection against scratches, dust, and light bumps, though a hard case would provide superior protection against severe impacts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill my William Optics FLT132 fit in the case with accessories attached?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe case is made for the FLT132 optical tube, so larger accessories such as \u003ca href=\"\/en-int\/collections\/finder-scopes\"\u003efinder scopes\u003c\/a\u003e, \u003ca href=\"\/en-int\/collections\/autoguiding\"\u003eguide scopes\u003c\/a\u003e, or large focus motors will likely need to be removed before placing the telescope in the case.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this case compatible with other 132mm refractors?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this case is specifically tailored to the dimensions and contours of the William Optics FLT132. It is not recommended for other telescope models, as a proper fit cannot be guaranteed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow should I store my FLT132 in this soft case?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis case is ideal for protecting your FLT132 from dust during short-term storage indoors. For long-term storage, especially in areas with high humidity, it is always recommended to store optics in a climate-controlled environment with desiccant.\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 FLT132 Refractor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSoft-Sided Carrying Case\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFoam Insert\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\"\u003eWilliam Optics Carry Soft Case for FLT132\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":44967238730013,"sku":"WO-BG1-P005","price":327.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-126-132-Soft-Case-BG1-P005-A01BL02-1__41340.1596133306.1280.1280.jpg?v=1684339613"},{"product_id":"starlight-instruments-2-dust-cap-for-any-2-0-opening","title":"Starlight Instruments 2\" Dust Cap for Any 2.0\" Opening","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits any 2.0\" opening\u003c\/li\u003e\n\u003cli\u003ePrecision-machined anodized aluminum\u003c\/li\u003e\n\u003cli\u003eLaser-scribed Feather Touch® logo\u003c\/li\u003e\n\u003cli\u003eProtects optics from dust and moisture\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\u003eStarlight Instruments 2\" Dust Cap for Any 2.0\" Opening\u003c\/h2\u003e\n\u003cp\u003eThe Starlight Instruments 2\" Dust Cap provides a precision-machined seal for any 2.0\" opening, protecting valuable optics from performance-degrading dust and moisture. This anodized aluminum cap replaces standard plastic plugs with a laser-scribed component that securely fits any 2.0\" \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e or \u003ca href=\"\/en-int\/collections\/diagonals\"\u003ediagonal\u003c\/a\u003e, safeguarding your investment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePremium Protection: Anodized and Laser-Scribed Finish\u003c\/h3\u003e\n\u003cp\u003eUnlike the plastic caps supplied with most equipment, this dust cap is machined from aluminum for a durable, professional-grade seal. The anodized finish resists scratches and corrosion, while the laser-scribed Feather Touch® logo adds a touch of distinction to your setup. It's an essential accessory for any astronomer serious about keeping their optical train pristine.\u003c\/p\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 Secure 2.0\" Fit for Any Focuser or Diagonal\u003c\/h3\u003e\n\u003cp\u003eEngineered for a perfect friction fit, this cap slides securely into any standard 2.0\" opening. Whether you're capping a Feather Touch focuser, a stock SCT \u003ca href=\"\/en-int\/collections\/visual-adapters\"\u003evisual back\u003c\/a\u003e, or a 2\" diagonal, the fit is snug enough to stay put during transport without being difficult to remove. This universal compatibility makes it a simple, effective upgrade for any piece of gear in your collection.\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 should I upgrade to the Starlight Instruments 2\" Dust Cap from the one my telescope came with?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eStandard plastic caps can crack, warp, or provide a loose fit that allows dust to enter your optical train. The \u003cstrong\u003eStarlight Instruments 2\" Dust Cap\u003c\/strong\u003e is machined from durable, anodized aluminum for a secure, long-lasting seal that offers superior protection for your optics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the Starlight Instruments 2\" Dust Cap made of?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe cap is made from \u003cstrong\u003ehigh-grade aluminum\u003c\/strong\u003e. It features a black anodized finish for durability and is finished with a laser-scribed Feather Touch® logo.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this 2\" dust cap fit my Feather Touch focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. This cap is designed to provide a perfect fit for Starlight Instruments Feather Touch focusers and any other focuser, diagonal, or accessory with a standard \u003cstrong\u003e2.0\" opening\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this Starlight Instruments cap on my 2\" diagonal when an eyepiece isn't inserted?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is ideal for this purpose. Placing the cap in your 2\" diagonal protects the mirror or prism from dust when your telescope is not in use, ensuring it's clean for your next observing session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the anodized finish on the 2\" dust cap prevent scratches?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAnodizing creates a hard, corrosion-resistant surface layer on the aluminum. While not scratch-proof, it is significantly more durable and resistant to scuffs and minor abrasions than paint or unfinished metal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Starlight Instruments 2\" Dust Cap just for telescopes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, it can be used to protect any piece of equipment with a 2.0\" opening. This includes accessories like Barlow lenses, extension tubes, and camera adapters that you want to keep free of dust during storage or transport.\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\u003eKnown to Fit\u003c\/td\u003e\n\u003ctd\u003eAny 2.0″ Opening\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits\u003c\/td\u003e\n\u003ctd\u003eAny 2.0\" Opening\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\"\u003eStarlight Instruments 2\" 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\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eStarlight Instruments 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Starlight Instruments","offers":[{"title":"Default Title","offer_id":44967254032669,"sku":"SI-DC-2.0","price":56.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-2-inch-Dust-Cap-for-Any-2-0-inch-Opening-DC-2.0-1__19159.1596313969.1280.1280.jpg?v=1684339783"},{"product_id":"starlight-instruments-feather-touch-red-led-astronomy-mini-lite","title":"Starlight Instruments Feather Touch Red LED Astronomy Mini Lite","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePure Red LED Emitter:\u003c\/strong\u003e Provides illumination that won't spoil your night vision, critical for visual observing and astrophotography.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact \"Mini\" Design:\u003c\/strong\u003e Small and lightweight, this flashlight fits easily into any eyepiece case or pocket without adding bulk.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction:\u003c\/strong\u003e Engineered with the same commitment to reliability as Feather Touch focusers, ensuring it withstands regular use in the field.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple, No-Fuss Operation:\u003c\/strong\u003e Designed for easy use in complete darkness, even while wearing gloves.\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\u003eStarlight Instruments Feather Touch Red LED Astronomy Mini Lite\u003c\/h2\u003e\n\u003cp\u003eThe Starlight Instruments Feather Touch Red LED Astronomy Mini Lite is a fundamental accessory for any serious astronomer. This compact flashlight is engineered for one specific purpose: to provide essential light for reading charts or adjusting equipment without destroying the dark adaptation your eyes work so hard to achieve. It delivers pure red light, the only part of the spectrum that minimally impacts your scotopic (night) vision, allowing you to find an \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepiece\u003c\/a\u003e or check a setting and immediately return to observing faint deep-sky 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\u003eThe Essential Astronomer's Tool: Protecting Dark Adaptation\u003c\/h3\u003e\n\u003cp\u003eA standard white flashlight, even on its dimmest setting, can reset your night vision for 20 minutes or more, effectively wasting precious dark-sky time. The Feather Touch Mini Lite emits only red light, which preserves the rhodopsin in your eye's rod cells. This allows you to perform necessary tasks at the telescope—like swapping filters or consulting a \u003ca href=\"\/en-int\/collections\/books-and-charts\"\u003estar atlas\u003c\/a\u003e—without the jarring, vision-destroying shock of white light.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCompact and Reliable Field Illumination from Starlight Instruments\u003c\/h3\u003e\n\u003cp\u003eTrue to the Starlight Instruments ethos, this isn't just any red light. It's a purpose-built tool designed for portability and field-worthiness. Its \"mini\" form factor means it disappears into your accessory case until needed, and its robust construction ensures it will function reliably session after session. This is task lighting for the telescope, not a walking path illuminator; its focused, gentle glow is a feature, preventing light pollution at your observing site and keeping your focus on the sky.\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 is the Starlight Instruments Feather Touch Mini Lite red?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAstronomers use red light exclusively at night because it has the least impact on dark-adapted vision. The rod cells in your eyes, which are responsible for seeing in low light, are insensitive to deep red wavelengths. This allows you to see your equipment and charts clearly without losing your ability to detect faint details in nebulae and galaxies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Feather Touch Mini Lite bright enough to set up my entire telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis flashlight is designed as a task light to be used once you are already dark-adapted. Its brightness is intentionally low to protect night vision. For initial setup or teardown in complete darkness, a brighter, variable-brightness red headlamp is often more practical. The Mini Lite excels at tasks performed at the eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Feather Touch Mini Lite help when observing faint objects like the Veil Nebula (NGC 6960)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eObserving extremely faint targets like the Veil Nebula requires maximum dark adaptation. If you need to check a \u003ca href=\"\/en-int\/collections\/finder-scopes\"\u003efinder\u003c\/a\u003e chart to confirm your position or swap to an OIII filter, using the Mini Lite ensures you can perform the task and return to the eyepiece without your eyes needing to re-adapt, making it easier to spot the nebula's delicate filaments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Starlight Mini Lite to read a star atlas at the eyepiece of my 12\" Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is a perfect use case. The light is sufficient for reading star charts, planispheres, or notes right at the telescope without disturbing your own night vision or that of other observers nearby. Its compact size makes it easy to handle while standing at the eyepiece of a large \u003ca href=\"\/en-int\/collections\/dobsonians\"\u003eDobsonian\u003c\/a\u003e.\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 Starlight Instruments Mini Lite over a generic red flashlight?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe key advantage is the build quality and design philosophy associated with Starlight Instruments. You can expect a durable product that is reliable in the field, with an emitter chosen specifically for the correct astronomical red wavelength, unlike some generic lights that can have orange or pink tints that are less effective at preserving night vision.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Feather Touch Mini Lite durable enough for a cold, remote dark-sky site?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Starlight Instruments products are built for demanding field applications. The Mini Lite is constructed to be a reliable part of your core accessory kit, withstanding the temperature changes and handling expected during observing sessions away from home.\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\u003eLength\u003c\/td\u003e\n\u003ctd\u003e88.9 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e1 year\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\"\u003eMini Lite with attached strap\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\"\u003eAAA batteries\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\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eStarlight Instruments 1-Year Warranty (electronics)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Starlight Instruments","offers":[{"title":"Default Title","offer_id":44967254163741,"sku":"SI-FL-LITE","price":28.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-Feather-Touch-Red-LED-Astronomy-Mini-Lite-FL-LITE-1__03262.1596313970.1280.1280.jpg?v=1684339791"},{"product_id":"starlight-instruments-2-dust-cap-w-desiccant-for-any-2-0-opening","title":"Starlight Instruments 2\" Dust Cap w\/ Desiccant for Any 2.0\" Opening","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits any standard 2.0\" focuser or opening\u003c\/li\u003e\n\u003cli\u003eActively protects optics from moisture and dust\u003c\/li\u003e\n\u003cli\u003eUtilizes replaceable, color-indicating desiccant packs\u003c\/li\u003e\n\u003cli\u003ePrevents fungus growth and coating degradation\u003c\/li\u003e\n\u003cli\u003eMachined by Starlight Instruments\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\u003eStarlight Instruments 2\" Dust Cap w\/ Desiccant for Any 2.0\" Opening\u003c\/h2\u003e\n\u003cp\u003eThe Starlight Instruments DDC-2 Desiccant Dust Cap provides active moisture control for any telescope with a 2.0″ opening. This system uses replaceable, color-indicating desiccant packs to protect your optics, fitting securely into any 2.0\" \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e or \u003ca href=\"\/en-int\/collections\/visual-adapters\"\u003evisual back\u003c\/a\u003e to prevent dust and humidity damage during storage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eActive Moisture Control for Any 2.0\" Focuser\u003c\/h3\u003e\n\u003cp\u003eEven small amounts of moisture trapped inside your telescope can lead to fungus growth on lenses or degradation of delicate mirror coatings over time. The DDC-2 seals your optical tube and uses a desiccant pack to absorb any internal humidity, creating a dry, stable environment that preserves the integrity of your optics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eWhy a 2.0\" Desiccant Cap Beats a Standard Plug\u003c\/h3\u003e\n\u003cp\u003eA standard plastic plug only blocks dust and can trap humid air inside your telescope when you cap it. The Starlight Instruments DDC-2 goes further by actively removing that trapped moisture. The desiccant packs are self-indicating, turning from blue to pink when they are saturated and need to be replaced, giving you a clear visual cue that your telescope is protected.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisual Indicator:\u003c\/strong\u003e The desiccant changes color from blue (dry) to pink (saturated), so you always know when it's time for a replacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrevents Damage:\u003c\/strong\u003e By maintaining a dry interior, you safeguard your investment against costly damage from fungus or coating failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Fit:\u003c\/strong\u003e Designed by Starlight Instruments, this cap provides a snug fit in any standard 2.0\" opening, ensuring a proper seal.\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\u003cp\u003eThis product includes the dust cap and a self-indicating desiccant starter pack. Replacement desiccant packs are sold separately.\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 Starlight Instruments 2\" Desiccant Dust Cap work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eStarlight DDC-2\u003c\/strong\u003e fits into any 2.0\" opening on your telescope, creating a seal. A compartment inside the cap holds a desiccant pack that absorbs moisture from the air trapped within your optical tube, preventing condensation, fungus growth, and corrosion of optical coatings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen do I need to replace the desiccant in my DDC-2 cap?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe included desiccant packs are self-indicating. You should replace the pack when its color changes from \u003cstrong\u003eblue (dry) to pink (saturated)\u003c\/strong\u003e. The rate at which this happens depends on the humidity of your storage environment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Starlight DDC-2 fit my Explore Scientific 2\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The Starlight Instruments DDC-2 is designed to fit any standard 2.0\" opening, including focusers and visual backs from all major brands like Explore Scientific, Celestron, Meade, Tele Vue, and others that adhere to the 2.0\" standard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Starlight 2\" Desiccant Dust Cap on my refractor stored in a humid garage?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis is an ideal scenario for the DDC-2. Storing a telescope in a non-climate-controlled space like a garage exposes it to significant temperature and humidity swings. The desiccant cap will actively work to keep the inside of your \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractor\u003c\/a\u003e's optical tube dry, protecting the lenses from moisture damage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the DDC-2 enough to keep my Celestron EdgeHD 8\" SCT dry during storage?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, for a sealed tube like a \u003ca href=\"\/en-int\/collections\/schmidt-cassegrain-telescopes\"\u003eSchmidt-Cassegrain Telescope\u003c\/a\u003e (SCT), the Starlight DDC-2 is highly effective. By placing it in the 2.0\" visual back, it will absorb the volume of air inside the tube. For best results, ensure the front corrector cap is also securely in place to create a sealed environment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Starlight DDC-2 better than leaving an eyepiece in the focuser for storage?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. Leaving an \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepiece\u003c\/a\u003e in the focuser does not create an airtight seal and does nothing to remove moisture already inside the tube. The DDC-2 both seals the opening and actively removes humidity, offering far superior protection for your primary mirror or objective lens.\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\u003eAny 2.0″ Opening\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\"\u003e2in desiccant 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\"\u003eself-indicating desiccant starter pack\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\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eStarlight Instruments 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Starlight Instruments","offers":[{"title":"Default Title","offer_id":44967260553501,"sku":"SI-DDC-2","price":98.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-2-inch-Dust-Cap-Desiccant-for-Any-2-0-inch-Opening-DDC-2-1__88604.1596313973.1280.1280.jpg?v=1684339794"},{"product_id":"howie-glatter-single-650nm-red-beam-laser-collimator-1-25-2","title":"Howie Glatter Single 650nm Red Beam Laser Collimator - 1.25\"\/2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e650nm Single Red Laser Beam\u003c\/li\u003e\n\u003cli\u003eFactory-Aligned to 15 Arc-Seconds\u003c\/li\u003e\n\u003cli\u003eFits 1.25\" and 2\" Eyepiece Holders\u003c\/li\u003e\n\u003cli\u003eClass IIIa Laser (Maximum 5 mW Output)\u003c\/li\u003e\n\u003cli\u003eIncludes 1mm Aperture Stop for Precision\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\u003eHowie Glatter Single 650nm Red Beam Laser Collimator - 1.25\"\/2\"\u003c\/h2\u003e\n\u003cp\u003eThe Howie Glatter Single 650nm Red Beam Laser Collimator establishes an exact optical axis, providing a reference line aligned to within 15 arc-seconds for precise telescope collimation. This Class IIIa laser fits both 1.25\" and 2\" \u003ca href=\"\/en-int\/collections\/visual-adapters\"\u003eeyepiece holders\u003c\/a\u003e and uses a solid-state laser diode that does not fade or change with time and use, powered by an included 123A lithium battery. The 650 nm beam provides the reference line for aligning optics in \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonian\u003c\/a\u003e, \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractor\u003c\/a\u003e, and Cassegrain 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\u003eBuilt to Last: Shock-Tested and Aligned to 15 Arc-Seconds\u003c\/h3\u003e\n\u003cp\u003eA laser collimator is useless if it can't hold its own alignment. Each Howie Glatter collimator is factory-aligned to a tolerance of 15 arc-seconds, which translates to a deviation of just 0.1 inches at a distance of 20 feet. To ensure this alignment holds, every unit is shock-tested by being struck at least a dozen times on three different axes before its alignment is re-verified, simulating a drop from the \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e of a large \u003ca href=\"\/en-int\/collections\/dobsonians\"\u003eDobsonian\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\u003e650nm Beam with a 1mm Aperture Stop for Pinpoint Accuracy\u003c\/h3\u003e\n\u003cp\u003eThe beam from a raw laser diode is often fuzzy and elliptical, making it difficult to judge the exact center. This 650 nm collimator includes a removable 1 mm aperture stop that push-fits into the laser aperture, transforming the beam into a tiny, circular point. At a distance, this focused beam creates a star-like diffraction pattern, with a central dot surrounded by faint rings that allow for extremely accurate centering on your primary mirror's center mark.\u003c\/p\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 1.25\"\/2\" Format with 3\/8-32 Accessory Thread\u003c\/h3\u003e\n\u003cp\u003eThis collimator fits both 1.25\" and 2\" eyepiece holders. The front of the laser features a 3\/8-32 thread, allowing for the addition of optional accessories like holographic attachments (square grid, crosshair, or concentric circles) or a \u003ca href=\"\/en-int\/collections\/barlows-and-extenders\"\u003eBarlow\u003c\/a\u003e attachment for advanced collimation techniques.\u003c\/p\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 for Newtonian, Refractor, and Cassegrain Telescopes\u003c\/h3\u003e\n\u003cp\u003eThis single-beam laser provides the essential reference line needed to align the optical train of most amateur telescopes. For Newtonians, it allows precise adjustment of the secondary and primary mirrors. On refractors, it verifies drawtube alignment and checks the objective's tilt. For Cassegrain systems, it helps align the back axis and secondary mirror, establishing the foundation for a well-collimated system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eChoosing Your Wavelength: 650nm vs. 635nm Lasers\u003c\/h3\u003e\n\u003cp\u003eWhile both the 650nm and 635nm lasers have the same 5 mW maximum power output, the human eye perceives the 635nm wavelength as two to three times brighter. This makes the 635nm version a better choice for collimating in early twilight or brighter ambient light. For collimating in darkness, however, the 650nm laser is perfectly adequate especially for single-beam collimators, which concentrate all the laser light in the central beam.\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 Howie Glatter laser collimator different from other lasers?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe key difference is its verified alignment and durability. Each Howie Glatter collimator is aligned to 15 arc-seconds and then subjected to a rigorous shock-testing procedure, struck at least a dozen times on three axes, to ensure it maintains that alignment even after being dropped or mishandled.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the included 1mm aperture stop with the Howie Glatter collimator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 1 mm aperture stop simply push-fits into the laser opening. It sharpens the fuzzy, elliptical beam from the raw diode into a tiny, circular point. This produces a star-like diffraction pattern on your primary mirror, allowing for much more precise centering of the beam on your center mark.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a large Dobsonian Newtonian. How can I collimate the primary mirror by myself with the Howie Glatter laser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eHowie's instructions: the return spot on the collimator face can be seen from the front of the telescope, looking down the tube, by double reflection in the primary and secondary, and you may need a helper to turn the primary screws while you watch. The primary can also be adjusted by making the up-going and down-going beam impact points on the secondary coincide; with an open tube this can make solo collimation easier.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Howie Glatter 650nm laser to collimate my refractor telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. When placed in the focuser (without a \u003ca href=\"\/en-int\/collections\/diagonals\"\u003ediagonal\u003c\/a\u003e), the Howie Glatter laser projects a beam through the objective lens. You can check that the focuser drawtube is aligned with the center of the objective. The reflection from the objective lens surfaces back to the collimator face is then used to adjust the objective cell's tilt. For safety, always place a beam stop, like a piece of masking tape, across the \u003ca href=\"\/en-int\/collections\/dew-prevention-and-control\"\u003edew shield\u003c\/a\u003e opening to prevent the beam from exiting the front of the telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the thread on the front of the Howie Glatter collimator for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe front of the collimator has a 3\/8-32 thread. This allows you to attach optional accessories sold separately, such as Howie Glatter's holographic attachments (square grid, concentric circles, etc.) or a Barlow attachment for more advanced collimation techniques.\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003eLC2125-650\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWavelength\u003c\/td\u003e\n\u003ctd\u003e650 nm (red)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeam\u003c\/td\u003e\n\u003ctd\u003eSingle beam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits\u003c\/td\u003e\n\u003ctd\u003e1.25\" and 2\" eyepiece holders\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLaser Class\u003c\/td\u003e\n\u003ctd\u003eIIIa (maximum output 5 mW)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlignment\u003c\/td\u003e\n\u003ctd\u003eFactory-aligned to 15 arc-seconds (0.1 in at 20 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLaser Source\u003c\/td\u003e\n\u003ctd\u003eSolid-state laser diode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock Testing\u003c\/td\u003e\n\u003ctd\u003eEach collimator struck at least a dozen times on three axes, alignment rechecked\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003e123A lithium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAttachment Thread\u003c\/td\u003e\n\u003ctd\u003e3\/8-32 (current version, identified by a visible ring)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional Accessories\u003c\/td\u003e\n\u003ctd\u003eHolographic attachments (square grid, concentric circle, cross hair), Barlow attachment, Variable Laser Brightness cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUse\u003c\/td\u003e\n\u003ctd\u003eNewtonian, refractor and Cassegrain collimation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eHowie Glatter 650 nm single-beam 1.25\/2\" laser collimator\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\"\u003e123A lithium battery\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 mm aperture stop\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\"\u003eProtective case\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\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eHowie Glatter Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Howie Glatter","offers":[{"title":"Default Title","offer_id":44967298269469,"sku":"SI-LC2125-650","price":434.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-Single-Red-Beam-2-inch-1-25-inch-Laser-Collimator-SI-LC2125-650-1__22605.1596314048.1280.1280.jpg?v=1684340075"},{"product_id":"howie-glatter-single-532nm-green-beam-laser-collimator-1-25-2","title":"Howie Glatter Single 532nm Green Beam Laser Collimator - 1.25\"\/2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e532nm Green Wavelength\u003c\/li\u003e\n\u003cli\u003eSingle Beam Output\u003c\/li\u003e\n\u003cli\u003eListed for 1.25\" and 2\" Eyepiece Holders\u003c\/li\u003e\n\u003cli\u003e15 arc-second Alignment Accuracy\u003c\/li\u003e\n\u003cli\u003eClass IIIa Laser (maximum 5 mW)\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\u003eHowie Glatter Single 532nm Green Beam Laser Collimator - 1.25\"\/2\"\u003c\/h2\u003e\n\u003cp\u003eThe Howie Glatter Single 532nm Green Beam Laser Collimator establishes a precise optical axis reference for \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonian\u003c\/a\u003e, \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractor\u003c\/a\u003e, and Cassegrain telescopes, listed for both 1.25\" and 2\" \u003ca href=\"\/en-int\/collections\/visual-adapters\"\u003eeyepiece holders\u003c\/a\u003e. Its Class IIIa solid-state laser is factory-aligned to a tolerance of 15 arc-seconds, ensuring the beam is parallel to the collimator body for accurate adjustments. Howie Glatter collimators run on a 123A lithium battery and features a 3\/8-32 threaded aperture for use with optional holographic and \u003ca href=\"\/en-int\/collections\/barlows-and-extenders\"\u003eBarlow\u003c\/a\u003e attachments.\u003c\/p\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 Shock-Tested Standard: Precise to 15 Arc-Seconds\u003c\/h3\u003e\n\u003cp\u003eThe alignment is held to a tolerance of 15 arc-seconds, equivalent to a deviation of just 0.1 inches at a distance of 20 feet. Before leaving the factory, each unit undergoes shock testing on three axes to confirm the laser's alignment is stable and reliable. This rigorous quality control ensures that the beam you see is a true reference line for your telescope's optical axis, from the \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e to the primary mirror and back.\u003c\/p\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 532nm Green Beam Advantage for Daylight Collimation\u003c\/h3\u003e\n\u003cp\u003eThe 532nm green version is much brighter than the red ones. In most circumstances it is overly bright for night-time collimation, but it is useful for Barlowed or holographic collimation in daylight or higher levels of ambient light.\u003c\/p\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 1.25\"\/2\" Body with a 3\/8-32 Accessory Thread\u003c\/h3\u003e\n\u003cp\u003eThis collimator fits both 1.25\" and 2\" eyepiece holders. The front of the laser features a 3\/8-32 thread, allowing you to attach optional accessories like holographic diffractive elements or a Barlow attachment for advanced collimation techniques.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eHowie Glatter 532nm Green vs. Red Lasers: Which to Choose?\u003c\/h3\u003e\n\u003cp\u003eThe choice between a green and red Howie Glatter laser depends entirely on your primary collimation environment and technique.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e532nm Green Laser (This Model):\u003c\/strong\u003e Choose this version for Barlowed or holographic collimation in daylight or higher levels of ambient light.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRed Laser (635nm\/650nm):\u003c\/strong\u003e The green version is overly bright for night-time collimation in most circumstances; the 650nm red laser is quite adequate in darkness.\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\"\u003eWhy choose the Howie Glatter 532nm green laser over a red one?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 532nm green version is much brighter than the red ones. In most circumstances it is overly bright for night-time collimation, but it is useful for Barlowed or holographic collimation in daylight or higher levels of ambient light. For collimating in darkness, a red version is the usual choice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the Howie Glatter collimator to align my Newtonian telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe process involves a sequence of adjustments to align each optical component to the focuser axis. Step 1 (Secondary Mirror): Place the laser in the focuser. Adjust the secondary mirror's tilt until the laser beam hits the exact center of the primary mirror (usually marked with a center spot or ring). Step 2 (Primary Mirror): Adjust the primary mirror's collimation screws. Watch the laser beam's reflection as it travels back up the tube, reflects off the secondary, and hits the face of the collimator. Adjust the primary until this return beam enters the aperture it came from.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Howie Glatter laser safe to use on my refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, but with a critical safety precaution. Unlike a Newtonian, a refractor will allow the laser beam to pass straight through the objective lens and exit the front of the telescope. Always place a strip of masking tape across the opening of your \u003ca href=\"\/en-int\/collections\/dew-prevention-and-control\"\u003edew shield\u003c\/a\u003e to act as a beam stop before you begin. This prevents the Class IIIa laser beam from exiting the telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat accessories work with the Howie Glatter collimator's 3\/8-32 thread?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 3\/8-32 thread on the current version of the Howie Glatter collimator is designed for optional accessories that enable more advanced alignment techniques. These include holographic attachments (which project patterns like a square grid or concentric circles) and Barlow attachments for fine-tuning primary mirror alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the 15 arc-second alignment mean for my Howie Glatter collimator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 15 arc-second tolerance is a measure of how parallel the laser beam is to the outside of the collimator's cylindrical body. This precision ensures that when the collimator is seated in your focuser, the beam it projects is a true representation of the focuser's central axis. This accuracy is the foundation for a precisely collimated optical system.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I turn the Howie Glatter laser off to prevent battery drain?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo turn the laser off and prevent it from accidentally turning on during storage, rotate the battery cap counterclockwise. Continue turning it for at least one full turn past the point where the laser shuts off.\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003eLC2125-532\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWavelength\u003c\/td\u003e\n\u003ctd\u003e532 nm (green)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeam\u003c\/td\u003e\n\u003ctd\u003eSingle beam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits\u003c\/td\u003e\n\u003ctd\u003e1.25\" and 2\" eyepiece holders\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLaser Class\u003c\/td\u003e\n\u003ctd\u003eIIIa (maximum output 5 mW)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlignment\u003c\/td\u003e\n\u003ctd\u003eFactory-aligned to 15 arc-seconds (0.1 in at 20 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLaser Source\u003c\/td\u003e\n\u003ctd\u003eSolid-state laser diode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock Testing\u003c\/td\u003e\n\u003ctd\u003eEach collimator struck at least a dozen times on three axes, alignment rechecked\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003e123A lithium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAttachment Thread\u003c\/td\u003e\n\u003ctd\u003e3\/8-32 (current version, identified by a visible ring)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional Accessories\u003c\/td\u003e\n\u003ctd\u003eHolographic attachments (square grid, concentric circle, cross hair), Barlow attachment, Variable Laser Brightness cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUse\u003c\/td\u003e\n\u003ctd\u003eNewtonian, refractor and Cassegrain collimation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eHowie Glatter 532 nm single-beam 1.25\/2\" laser collimator\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\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eHowie Glatter Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Howie Glatter","offers":[{"title":"Default Title","offer_id":44967298302237,"sku":"SI-LC2125-532","price":658.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-Single-GREEN-Beam-2-inch-1-25-inch-Laser-Collimator-SI-LC2125-532-1__86202.1596314048.1280.1280.jpg?v=1684340079"},{"product_id":"howie-glatter-blug-newtonian-collimator-2","title":"Howie Glatter Uni-Blug Newtonian Collimator - 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eBarlowed collimation plug for Newtonian primary mirror alignment\u003c\/li\u003e\n\u003cli\u003eDesigned for 2\" focusers, including Feather Touch models\u003c\/li\u003e\n\u003cli\u003eFeatures a matte-white 45° viewing screen\u003c\/li\u003e\n\u003cli\u003eInserts 3\/8\" into the focuser drawtube\u003c\/li\u003e\n\u003cli\u003eUses an anti-reflection coated Barlow lens\u003c\/li\u003e\n\u003cli\u003eSecured by an O-ring in the base\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\u003eHowie Glatter Uni-Blug Newtonian Collimator - 2\"\u003c\/h2\u003e\n\u003cp\u003eThe Howie Glatter Uni-Blug is a specialized tool for precisely aligning the primary mirror of a \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonian telescope\u003c\/a\u003e, designed to fit inside a 2\" focuser drawtube. It uses an integrated Barlow lens to project the shadow of your primary mirror's center mark onto a matte-white 45° screen, providing an intuitive and accurate reference for adjustment. It extends 3\/8\" into the inner end of the drawtube, so the \u003ca href=\"\/en-int\/collections\/collimation-tools\"\u003elaser collimator\u003c\/a\u003e in the \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepiece\u003c\/a\u003e end must not reach forward far enough to touch it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBarlowed Collimation: Using a 45° Screen for Primary Alignment\u003c\/h3\u003e\n\u003cp\u003eThe Uni-Blug simplifies the final, most critical step of Newtonian collimation. After aligning your secondary mirror with a single-beam laser, you insert the Uni-Blug into the inner end of the focuser drawtube. The laser beam passes through the Blug's anti-reflection coated Barlow lens, diverging to illuminate the primary mirror's center.\u003c\/p\u003e\n\u003cp\u003eThe primary mirror reflects this light back as a collimated beam containing a crisp shadow of its center marking. This shadow is projected onto the Uni-Blug's 45° screen, where its position directly indicates the primary's alignment. You then adjust your primary mirror's collimation screws until the shadow is perfectly centered on the screen's central aperture, completing the 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\u003eUniversal Fit for 2\" Focusers: Feather Touch Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis \"Uni-Blug\" design consolidates the previous separate BLUG and FLUG models into a single, universal tool. It fits the inner end of the focuser drawtube, retained by an O-ring in its base. Drawtube inner ends vary between focuser makers, although most are near eyepiece nominal size.\u003c\/p\u003e\n\u003cp\u003eFor use with 2\" Crayford Feather Touch focusers, which have a larger internal diameter at the drawtube end, a shim kit is included. By placing the thin gray or thick brown shim under the O-ring, you get a snug fit; if the Uni-Blug feels loose or tilts with the gray shim, change to the brown one.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e3\/8\" Insertion Depth: A Step-by-Step Collimation Guide\u003c\/h3\u003e\n\u003cp\u003eUsing the Uni-Blug is a straightforward process. First, ensure your secondary mirror is aligned using your laser collimator alone. Before inserting the Blug, remove any aperture stop from your laser collimator to ensure a high-contrast shadow without diffraction rings. Insert your laser collimator into the focuser first to prevent air pressure from dislodging the Blug.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsertion:\u003c\/strong\u003e The Uni-Blug inserts just 3\/8\" into the drawtube. Ensure your laser collimator does not protrude far enough to make contact with it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTruss-Tube Scopes:\u003c\/strong\u003e Orient the 45° screen to face the rear of the telescope, making it visible while you are at the primary mirror making adjustments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolid-Tube Scopes:\u003c\/strong\u003e Turn the Uni-Blug 180° so the screen faces the front of the telescope, allowing you to view it from the front while adjusting the primary.\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 is the difference between this 2\" Uni-Blug and older Howie Glatter models?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Uni-Blug combines the functions of the previous, separate BLUG (for standard focusers) and FLUG (for Feather Touch focusers) into one tool. This model includes shims to adapt its fit for the larger inner diameter of 2\" Feather Touch drawtubes, making it a universal solution.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the shims with my 2\" Feather Touch focuser and the Uni-Blug?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou must place a shim into the O-ring groove on the Uni-Blug's base. Two shims are provided: a thinner gray one and a thicker brown one. Start by installing the gray shim under the O-ring and test the fit. If the Uni-Blug still feels loose or tilts inside the drawtube, replace the gray shim with the thicker brown one for a secure fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy must I remove my laser collimator's aperture stop when using the Uni-Blug?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe aperture stop, used for precise secondary alignment, will cause the Barlowed laser shadow to lose contrast and may create confusing diffraction rings on the Uni-Blug's screen. Removing it ensures you see a sharp, high-contrast silhouette of the primary's center mark, which is essential for accurate alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eOn my solid-tube Newtonian, which way should the Uni-Blug's screen face?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor a solid-tube scope, insert the Uni-Blug so its 45° screen faces the front opening of the telescope. The target shadow is then easily seen from the front of the scope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I align my secondary mirror with the Howie Glatter Uni-Blug?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The Uni-Blug is designed exclusively for aligning the primary mirror. You must first align your secondary mirror's tilt using a single-beam laser collimator by itself, ensuring the laser dot hits the center of the primary mirror. Only then do you insert the Uni-Blug to perform the final primary alignment.\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\u003eBarlowed collimation plug (Uni-Blug) for Newtonian primary mirror alignment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits\u003c\/td\u003e\n\u003ctd\u003eInner end of the focuser drawtube, Feather Touch and non-Feather Touch focusers (2\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScreen\u003c\/td\u003e\n\u003ctd\u003eMatte-white 45° face\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens\u003c\/td\u003e\n\u003ctd\u003eSmall anti-reflection coated Barlow lens in a central axial hole\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRetention\u003c\/td\u003e\n\u003ctd\u003eO-ring in the base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDepth Into Drawtube\u003c\/td\u003e\n\u003ctd\u003e3\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUse With\u003c\/td\u003e\n\u003ctd\u003eA single-beam laser collimator, after the secondary is aligned\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eUni-Blug\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\"\u003eShims for 2\" Feather Touch focusers (gray thin, brown thick)\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\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eHowie Glatter Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Howie Glatter","offers":[{"title":"Default Title","offer_id":44967298335005,"sku":"SI-UNI-BLUG","price":182.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-2-inch-Newtonian-Collimator-SI-UNI-BLUG-1__12706.1596314048.1280.1280.jpg?v=1684340082"},{"product_id":"howie-glatter-holographic-attachment-w-cross-hair-pattern","title":"Howie Glatter Holographic Attachment w\/ Cross Hair Pattern","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eProjects a simple cross-hair pattern\u003c\/li\u003e\n\u003cli\u003eDesigned for aligning the returning laser beam\u003c\/li\u003e\n\u003cli\u003eFits modern Howie Glatter collimators with 3\/8-32 thread\u003c\/li\u003e\n\u003cli\u003eRemovable for single-beam laser operation\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\u003eHowie Glatter Holographic Attachment w\/ Cross Hair Pattern\u003c\/h2\u003e\n\u003cp\u003eThe Howie Glatter Holographic Attachment with Cross Hair Pattern is a removable diffractive optical element designed for modern Howie Glatter \u003ca href=\"\/en-int\/collections\/collimation-tools\"\u003elaser collimators\u003c\/a\u003e using the current 3\/8-32 thread. The cross-hair pattern is useful for aligning the returning beam on the collimator face.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e3\/8-32 Thread Attachment for Howie Glatter Collimators\u003c\/h3\u003e\n\u003cp\u003eThis holographic attachment is designed to fit current-generation Howie Glatter laser collimators, which use a coarser 3\/8-32 thread at the laser aperture, identifiable by a visible ring. It functions as a simple, screw-on accessory that diffracts a portion of the laser's light to project a symmetrical cross-hair pattern around the central beam.\u003c\/p\u003e\n\u003cp\u003eThe attachment is fully removable, allowing you to switch between holographic and single-beam modes. Simply unscrew the diffractor to use the collimator's central beam at maximum power. When screwed back on, the attachment retains its alignment, ready for the next collimation task. Note that this attachment cannot be used at the same time as the 1mm aperture stop.\u003c\/p\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 15 Arc-Second Accuracy Standard\u003c\/h3\u003e\n\u003cp\u003eHowie Glatter holographic collimators are manufactured to a high standard, with their original diffractive attachments individually fitted to achieve a maximum alignment accuracy of 15 arc-seconds. \u003c\/p\u003e\n\u003cp\u003eBecause of this individual fitting, swapping holographic attachments between different laser collimators will likely compromise this 15 arc-second accuracy. While the alignment will still be within the several arc-minute tolerance of many other collimators, for maximum precision it is best to use an attachment paired with its original laser body. This cross-hair attachment is intended as an addition to your existing collimator for a specific task.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCross Hair vs. Square Grid: Which Pattern is for You?\u003c\/h3\u003e\n\u003cp\u003eThe Square Grid pattern offers a distinct advantage for centering optical elements. Because it projects a full grid, a small amount of decentering in a circular mirror or lens produces a proportionately larger and more obvious asymmetry where the grid lines intersect the optic's edge. The Cross Hair pattern does not provide this amplified feedback.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Grid Pattern:\u003c\/strong\u003e Its high sensitivity to asymmetry makes it the recommended pattern for general use, especially for initial centering of primary and secondary mirrors in \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonian telescopes\u003c\/a\u003e. It is effective for optics from f\/2.7 to f\/35.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross Hair Pattern:\u003c\/strong\u003e This simpler pattern is best suited for the final stage of primary mirror collimation. Its specific purpose is to help you center the returning laser beam precisely back into the aperture on the face of the collimator.\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 is the Howie Glatter Cross Hair Holographic Attachment used for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis attachment projects a cross-hair pattern that is primarily used for the final step in collimating a Newtonian telescope: aligning the laser beam reflected from the primary mirror so it returns perfectly to the center of the laser collimator's face.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I know if this Cross Hair attachment will fit my Howie Glatter laser collimator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis attachment fits the current version of Howie Glatter laser collimators, which use a coarser 3\/8-32 thread. You can identify these modern collimators by a visible ring. It will not fit older models that used a finer 5\/16-56 thread.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this Cross Hair attachment and the 1mm aperture stop at the same time?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The 1 mm aperture stop is not used at the same time as the holographic feature: unscrew the diffractor first, then install the stop in the laser aperture. Screwing the diffractor back on returns the collimator to holographic mode with its alignment kept.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy would I choose the Howie Glatter Cross Hair attachment over the Square Grid pattern?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou would choose the Cross Hair pattern for its simplicity in a specific task: centering the return beam. The Square Grid pattern is more sensitive for judging the centering of the mirror itself within the pattern, making it better for general-purpose optical alignment. The Cross Hair is a more specialized tool for the final step.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen collimating my Newtonian, at what step is the Howie Glatter Cross Hair attachment most useful?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Cross Hair attachment is most useful during primary mirror collimation. After your secondary mirror is correctly positioned, you adjust the primary mirror's tilt until the returning laser beam is centered on the face of the collimator. The cross-hair pattern provides a clear target for this final, critical adjustment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIf I use this Howie Glatter attachment on a friend's collimator, will it be as accurate?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eProbably not. Original holographic attachments are individually fitted to their specific collimator to achieve an accuracy of 15 arc-seconds. Swapping attachments between different collimators can lose this high precision, though the alignment will still be accurate to within several arc-minutes.\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\u003ePattern\u003c\/td\u003e\n\u003ctd\u003eCross hair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUse\u003c\/td\u003e\n\u003ctd\u003eAligning the returning beam on the collimator face\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eRemovable diffractive optical element (hologram)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits\u003c\/td\u003e\n\u003ctd\u003eHowie Glatter laser collimators, current 3\/8-32 thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCross hair holographic attachment\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\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eHowie Glatter Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Howie Glatter","offers":[{"title":"Default Title","offer_id":44967298367773,"sku":"SI-HOLA-Cross Hair","price":84.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-Holographic-Attachment-Cross-Hair-Pattern-for-Holographic-Collimator-SI-HOLA-CrossHair-1__43202.1596314049.1280.1280.jpg?v=1684340087"},{"product_id":"howie-glatter-single-635nm-red-beam-laser-collimator-1-25","title":"Howie Glatter Single 635nm Red Beam Laser Collimator - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e635nm red laser appears brighter for easier twilight collimation\u003c\/li\u003e\n\u003cli\u003eFits standard 1.25\" eyepiece holders\u003c\/li\u003e\n\u003cli\u003eFactory-aligned to a precision of 15 arc-seconds\u003c\/li\u003e\n\u003cli\u003eShock-tested to maintain alignment even after impacts\u003c\/li\u003e\n\u003cli\u003eIncludes a 1mm aperture stop for a finer, more precise beam\u003c\/li\u003e\n\u003cli\u003eFeatures a 3\/8-32 thread for optional holographic attachments\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\u003eHowie Glatter Single 635nm Red Beam Laser Collimator - 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe Howie Glatter Single 635nm Red Beam Laser Collimator for 1.25\" \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocusers\u003c\/a\u003e is built around a solid-state laser diode that is factory-aligned to a tolerance of just 15 arc-seconds. This Class IIIa laser delivers a maximum output of 5 mW, powered by a single 123A lithium battery. Its precision serves as the foundational reference line for accurately aligning \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonian\u003c\/a\u003e, \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractor\u003c\/a\u003e, and Cassegrain optical systems.\u003c\/p\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 Factory-Aligned Beam Held to 15 Arc-Seconds\u003c\/h3\u003e\n\u003cp\u003eThe core of any laser collimator is the assumption that its beam is perfectly parallel to its body. The Howie Glatter collimator guarantees this by aligning each unit's solid-state laser diode to within 15 arc-seconds, an accuracy that translates to a deviation of just 0.1 inches at a distance of 20 feet. This level of precision ensures that when you secure the collimator in your 1.25\" focuser, the beam it projects follows the axis of the \u003ca href=\"\/en-int\/collections\/visual-adapters\"\u003eeyepiece holder\u003c\/a\u003e, the reference from which laser collimation proceeds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eShock-Tested Build for Repeatable Accuracy\u003c\/h3\u003e\n\u003cp\u003eA laser's initial alignment is useless if it can't be maintained. Before leaving the factory, each Howie Glatter collimator is subjected to a rigorous shock test, where it is struck at least a dozen times on three separate axes. The alignment is then rechecked to ensure it has not shifted. This process validates a design built to withstand the inevitable bumps and minor drops that happen during field use, giving you confidence that your collimation is based on a consistent, reliable reference every 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\u003eThe 635nm Wavelength and 1mm Aperture Stop\u003c\/h3\u003e\n\u003cp\u003eThis model uses a 635 nm wavelength laser, which appears two to three times brighter to the human eye than the 650 nm alternative at the same 5 mW power output. This increased visibility makes collimating in early twilight or other bright ambient light conditions significantly easier. For even greater precision, the collimator includes a removable 1 mm aperture stop that transforms the beam's fuzzy edge into a tiny, circular diffraction pattern, allowing for more accurate centering on your primary mirror's mark.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eOptional Holographic Patterns via the 3\/8-32 Thread\u003c\/h3\u003e\n\u003cp\u003eWhile this is a single-beam laser, it is designed for expansion. The front of the collimator features a 3\/8-32 thread, allowing you to attach optional holographic diffractive elements. These accessories (sold separately) project patterns like a square grid or concentric circles around the central beam. A holographic pattern allows secondary adjustment without a center dot on the primary, by making the pattern symmetrical at the edge of the primary.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eHowie Glatter 635nm vs. 650nm: Which Red Laser Is Right for You?\u003c\/h3\u003e\n\u003cp\u003eHowie Glatter offers red lasers in two wavelengths, and the choice depends on your observing habits. The 650nm laser is perfectly adequate for collimating in darkness and is the more economical option. The 635nm laser, used in this model, is the superior choice if you frequently set up and collimate your telescope during twilight before the sky is fully dark. Its apparent brightness makes the laser spot much easier to see against a brighter background, justifying the higher cost for those who need the flexibility.\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 Howie Glatter 1.25\" laser collimator different from other lasers?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary difference is its proven durability and alignment stability. Every Howie Glatter collimator is shock-tested on three axes and re-verified to hold its tight 15 arc-second alignment. This means it can withstand normal field use and even minor drops without losing the precision you rely on for accurate collimation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the Howie Glatter collimator to align my 8\" f\/5 Newtonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor a Newtonian like an 8\" f\/5, the process starts by placing the collimator in the 1.25\" focuser. First, you adjust the secondary mirror's tilt until the laser beam hits the exact center of your primary mirror's center mark. Second, you adjust the primary mirror's collimation screws until the return beam, reflected from the primary, travels back up the tube and enters the aperture of the laser collimator it came from.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this 1.25\" laser to collimate a refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, but with a critical safety step. Place the collimator in the focuser without a \u003ca href=\"\/en-int\/collections\/diagonals\"\u003ediagonal\u003c\/a\u003e. The laser will pass through the objective lens and exit the front of the telescope. You must place a beam stop, like a strip of masking tape across the \u003ca href=\"\/en-int\/collections\/dew-prevention-and-control\"\u003edew shield\u003c\/a\u003e opening, to prevent the beam from hitting anything or anyone. First check that the beam passes through the center of the objective, then adjust the objective's angular alignment so the beam reflected from the center of the rear element returns to the collimator face, centered on the laser aperture.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the included 1mm aperture stop for on the Howie Glatter collimator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe removable 1mm aperture stop is a precision-enhancing tool. It fits into the laser's front aperture and shapes the beam into a much smaller, perfectly circular spot that resembles a star's diffraction pattern. This makes it easier to judge the exact center of the beam when aligning your optics, especially when centering the return beam on the collimator's face.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy should I choose the 635nm Howie Glatter laser over the 650nm version?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eChoose the 635nm version if you often collimate in brighter conditions, such as twilight. While both lasers have the same power output, the 635nm wavelength appears about two to three times brighter to the human eye. This makes the laser spot significantly more visible against a sky that is not yet completely dark. For collimation in full darkness, the 650nm version is sufficient.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the essential safety precautions for using this Class IIIa laser collimator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSafety is paramount. Follow these rules when using the Howie Glatter laser: Never allow the direct or reflected laser beam to enter anyone's eye. When first using the collimator in a Newtonian or Cassegrain, point the telescope at a nearby wall to check if a misaligned mirror is causing the beam to exit the front of the tube. For refractors, always place a beam stop (like tape) across the dew shield opening. When turning the laser off, rotate the battery cap at least one full turn counter-clockwise past the point where the laser extinguishes to prevent it from turning on accidentally in storage.\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003eLC125-635\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWavelength\u003c\/td\u003e\n\u003ctd\u003e635 nm (red)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeam\u003c\/td\u003e\n\u003ctd\u003eSingle beam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits\u003c\/td\u003e\n\u003ctd\u003e1.25\" eyepiece holders\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLaser Class\u003c\/td\u003e\n\u003ctd\u003eIIIa (maximum output 5 mW)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlignment\u003c\/td\u003e\n\u003ctd\u003eFactory-aligned to 15 arc-seconds (0.1 in at 20 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLaser Source\u003c\/td\u003e\n\u003ctd\u003eSolid-state laser diode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock Testing\u003c\/td\u003e\n\u003ctd\u003eEach collimator struck at least a dozen times on three axes, alignment rechecked\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003e123A lithium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAttachment Thread\u003c\/td\u003e\n\u003ctd\u003e3\/8-32 (current version, identified by a visible ring)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional Accessories\u003c\/td\u003e\n\u003ctd\u003eHolographic attachments (square grid, concentric circle, cross hair), Barlow attachment, Variable Laser Brightness cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUse\u003c\/td\u003e\n\u003ctd\u003eNewtonian, refractor and Cassegrain collimation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eHowie Glatter 635 nm single-beam 1.25\" laser collimator\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\"\u003e123A lithium battery\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 mm aperture stop\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\"\u003eProtective case\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\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eHowie Glatter Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Howie Glatter","offers":[{"title":"Default Title","offer_id":44967298400541,"sku":"SI-LC125-635","price":308.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-Single-Red-Beam-1-25-inch-Laser-Collimator-635nm-SI-LC125-635-1__74074.1596314050.1280.1280.jpg?v=1684340090"},{"product_id":"howie-glatter-single-650nm-red-beam-laser-collimator-2","title":"Howie Glatter Single 650nm Red Beam Laser Collimator - 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003ePrecise 650 nm single red beam\u003c\/li\u003e\n\u003cli\u003eFits standard 2\" eyepiece holders\u003c\/li\u003e\n\u003cli\u003eFactory-aligned to 15 arc-seconds\u003c\/li\u003e\n\u003cli\u003eClass IIIa laser with 5 mW maximum output\u003c\/li\u003e\n\u003cli\u003eIncludes 1 mm aperture stop for a tighter beam\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\u003eHowie Glatter Single 650nm Red Beam Laser Collimator - 2\"\u003c\/h2\u003e\n\u003cp\u003eThe Howie Glatter Single 650nm Red Beam Laser Collimator provides a reference beam aligned to an exacting 15 arc-seconds, ensuring your telescope's optics are adjusted for maximum image contrast and resolution. This 2\" collimator uses a solid-state laser diode to project a single 650 nm beam, and its Class IIIa laser has a maximum output of 5 mW for clear visibility in darkness. Each unit is rigorously shock-tested to hold its alignment, for collimating \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonian\u003c\/a\u003e, \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractor\u003c\/a\u003e and Cassegrain 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\u003e15 Arc-Second Alignment for Pinpoint Accuracy\u003c\/h3\u003e\n\u003cp\u003eThe fundamental requirement of a laser collimator is that its beam is perfectly parallel to its body. The Howie Glatter collimator is factory-aligned to a tolerance of 15 arc-seconds, which translates to a deviation of just 0.1 inch at a distance of 20 feet. This level of precision ensures that the reference line your entire optical system is adjusted against is true, eliminating the asymmetric aberrations caused by a misaligned laser and leading to sharper, higher-contrast images.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDrop-Tested on 3 Axes for Field Reliability\u003c\/h3\u003e\n\u003cp\u003eA collimator that loses its own alignment is useless. To prevent this, every Howie Glatter laser collimator is subjected to a rigorous shock test before leaving the factory. Each unit is struck at least a dozen times on three axes against a urethane block, simulating a drop from the \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e, and its 15 arc-second alignment is re-verified. This robust construction ensures the collimator maintains its precision use after use, even when handled in demanding field 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 Included 1mm Aperture Stop for Precise Centering\u003c\/h3\u003e\n\u003cp\u003eThe raw beam from a laser diode is naturally fuzzy and elliptical. To achieve the highest collimation accuracy, you need to identify the exact center of this spot. This collimator includes a removable 1 mm aperture stop that push-fits into the laser aperture, transforming the beam into a tiny, circular point. At a distance, this focused beam creates a star-like diffraction pattern with a central dot and surrounding rings, making it far easier to judge precise centering on your primary mirror's mark or on the collimator's face.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e2-Inch Format with 3\/8-32 Thread for Upgradability\u003c\/h3\u003e\n\u003cp\u003eThis collimator fits 2\" \u003ca href=\"\/en-int\/collections\/visual-adapters\"\u003eeyepiece holders\u003c\/a\u003e. The front of the unit also features a 3\/8-32 thread, allowing you to expand its capabilities with optional accessories. By adding a holographic attachment (sold separately), you can convert this single-beam laser into a patterned projector for dot-free secondary alignment or advanced primary mirror collimation techniques.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eHowie Glatter 650nm vs. 635nm: Choosing Your Wavelength\u003c\/h3\u003e\n\u003cp\u003eWhile both the 650 nm and 635 nm Howie Glatter lasers have the same 5 mW power output, the human eye perceives the 635 nm wavelength as two to three times brighter. This makes the 635 nm version a better choice if you frequently collimate in twilight or other bright ambient light conditions.\u003c\/p\u003e\n\u003cp\u003eFor most users who collimate in darkness, the 650 nm laser is perfectly adequate and more economical. Because a single-beam collimator concentrates all its light into one spot, the 650 nm beam remains easily visible for precise adjustments without the added cost of the shorter wavelength diode.\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 Howie Glatter 2\" laser collimator to collimate my Newtonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eCollimating a Newtonian involves a three-step process after inserting the Howie Glatter collimator into your 2\" focuser: 1. Align the Secondary Mirror: Adjust the secondary mirror's tilt screws until the laser dot hits the exact center of your primary mirror's center mark. 2. Align the Primary Mirror: Adjust the primary mirror's collimation knobs at the rear of the telescope to direct the return beam back into the aperture of the laser collimator itself. 3. Verify: A perfectly collimated scope will send the beam back exactly where it came from.\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 1mm aperture stop with the Howie Glatter 650nm collimator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 1 mm aperture stop is designed to improve collimating precision. The raw beam from the laser diode is somewhat fuzzy and not perfectly round. The stop constricts the beam, creating a much smaller, sharper, and more circular point of light. This produces a diffraction pattern (a dot surrounded by rings) that makes it significantly easier to judge the exact center of the beam on your mirror's surface or on the face of the collimator.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 650nm red beam on the Howie Glatter collimator bright enough for daytime or twilight use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 650 nm beam is quite adequate for use in darkness, where it is easily visible. However, for collimating in brighter ambient light, such as early twilight, you may find it difficult to see. For those situations, the 635 nm version of the Howie Glatter collimator is a better choice, as it appears two to three times brighter to the human eye for the same power output.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I safely use the Howie Glatter Class IIIa laser collimator with my refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSafety is paramount. The beam from this Class IIIa laser should never enter anyone's eye directly or via reflection. Unlike a Newtonian, a refractor will always pass the laser beam straight out the front of the telescope. Before you begin, always place a strip of masking tape across the opening of the \u003ca href=\"\/en-int\/collections\/dew-prevention-and-control\"\u003edew shield\u003c\/a\u003e to act as a beam stop. This prevents the laser from exiting the telescope and posing a hazard.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy Howie Glatter collimator turns on in its case. How do I prevent this?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eHowie's instructions: when turning the collimator off, rotate the battery cap counterclockwise at least one turn past laser off to prevent accidental activation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I upgrade the Howie Glatter single-beam collimator with holographic attachments later?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. This collimator features a 3\/8-32 thread on the laser aperture, which is compatible with Howie Glatter's optional holographic attachments. You can purchase a square grid, concentric circle, or cross-hair pattern attachment separately and screw it onto your single-beam unit to add advanced collimation capabilities at any time.\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003eLC2-650\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWavelength\u003c\/td\u003e\n\u003ctd\u003e650 nm (red)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeam\u003c\/td\u003e\n\u003ctd\u003eSingle beam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits\u003c\/td\u003e\n\u003ctd\u003e2\" eyepiece holders\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLaser Class\u003c\/td\u003e\n\u003ctd\u003eIIIa (maximum output 5 mW)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlignment\u003c\/td\u003e\n\u003ctd\u003eFactory-aligned to 15 arc-seconds (0.1 in at 20 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLaser Source\u003c\/td\u003e\n\u003ctd\u003eSolid-state laser diode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock Testing\u003c\/td\u003e\n\u003ctd\u003eEach collimator struck at least a dozen times on three axes, alignment rechecked\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003e123A lithium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAttachment Thread\u003c\/td\u003e\n\u003ctd\u003e3\/8-32 (current version, identified by a visible ring)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional Accessories\u003c\/td\u003e\n\u003ctd\u003eHolographic attachments (square grid, concentric circle, cross hair), Barlow attachment, Variable Laser Brightness cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUse\u003c\/td\u003e\n\u003ctd\u003eNewtonian, refractor and Cassegrain collimation\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\"\u003eHowie Glatter 650 nm single-beam 2\" laser collimator\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\"\u003e123A lithium battery\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 mm aperture stop\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\"\u003eProtective case\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\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eHowie Glatter Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Howie Glatter","offers":[{"title":"Default Title","offer_id":44967298466077,"sku":"SI-LC2-650","price":392.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-Single-Red-Beam-2-inch-Laser-Collimator-650nm-SI-LC2-650-1__55503.1596314050.1280.1280.jpg?v=1684339892"},{"product_id":"howie-glatter-barlow-laser-collimator-attachment","title":"Howie Glatter Barlow Laser Collimator Attachment","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eEnables precise Barlowed primary mirror collimation for Newtonians\u003c\/li\u003e\n\u003cli\u003eIntegrated design combines a Barlow lens and a white viewing screen in one disc\u003c\/li\u003e\n\u003cli\u003eAllows for accurate, solo adjustments at the telescope\u003c\/li\u003e\n\u003cli\u003eFits current model Howie Glatter laser collimators with a 3\/8-32 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\u003eHowie Glatter Barlow Laser Collimator Attachment\u003c\/h2\u003e\n\u003cp\u003eThe Howie Glatter Barlow Laser Collimator Attachment converts any current Howie Glatter collimator with a 3\/8-32 thread into a precise tool for Barlowed primary mirror collimation. This single disc integrates a small \u003ca href=\"\/en-int\/collections\/barlows-and-extenders\"\u003eBarlow lens\u003c\/a\u003e and a flat white front screen, enabling accurate, solo adjustment of a \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonian\u003c\/a\u003e primary mirror by creating a reference shadow whose position is affected very little by motion of the laser.\u003c\/p\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 Principle of Barlowed Collimation: A Stable Primary Mirror Reference\u003c\/h3\u003e\n\u003cp\u003eBarlowed collimation leverages the optical principle of a telescope in reverse. The attachment's small, centered Barlow lens takes the parallel laser beam and diverges it. When this diverging beam reflects off your Newtonian's primary mirror, it becomes a parallel beam again, projecting the shadow of your primary's center mark back up the tube.\u003c\/p\u003e\n\u003cp\u003eThis shadow is displayed on the attachment's white front screen. Because the shadow's position is determined by the primary mirror's tilt and not the laser's alignment in the \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e, it remains stationary even if the laser wobbles. This allows you to adjust the primary mirror's collimation screws to center the shadow around the central hole.\u003c\/p\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 Design for Solo Primary Mirror Adjustments\u003c\/h3\u003e\n\u003cp\u003eThis attachment replaces the need for a separate Barlow lens and a DIY paper screen. The entire system is contained in a single, threaded disc that attaches directly to the laser collimator, creating a compact and convenient tool for the final, most critical step of Newtonian collimation.\u003c\/p\u003e\n\u003cp\u003eThe attachment allows the user to make solo adjustments of the primary.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFor Current 3\/8-32 Thread Howie Glatter Collimators\u003c\/h3\u003e\n\u003cp\u003eThis Barlow attachment is designed to fit only the current generation of Howie Glatter laser collimators, which use a 3\/8-32 thread on the laser aperture. These collimators are identified by a visible ring.\u003c\/p\u003e\n\u003cp\u003eIt is not compatible with older Glatter collimators with the super fine 5\/16-56 thread (no visible ring); the old-thread version of this attachment is discontinued. Please verify your collimator's thread type before purchasing to ensure compatibility.\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 Howie Glatter Barlow Attachment improve primary mirror collimation?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe attachment diverges the beam so that, after reflection from the primary, it returns as parallel rays carrying the shadow of the primary's center mark to the white screen. The shadow's position is affected very little by motion of the illuminating beam, so it stays put even if the collimator moves in the focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Howie Glatter Barlow Attachment with a laser from another brand?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this attachment is specifically designed to thread onto the aperture of a Howie Glatter laser collimator. It relies on the specific 3\/8-32 thread used on current Glatter models and is not a universal fit for other brands.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I know if my Howie Glatter collimator has the correct 3\/8-32 thread for this Barlow Attachment?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eCurrent model Howie Glatter collimators that are compatible with this attachment have a visible ring. Older, incompatible models use a much finer thread (5\/16-56) and do not have this ring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Howie Glatter Barlow Attachment useful for collimating a Schmidt-Cassegrain telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. It is designed for Newtonian primary mirror adjustment. On commercial \u003ca href=\"\/en-int\/collections\/schmidt-cassegrain-telescopes\"\u003eSCTs\u003c\/a\u003e only the secondary is user adjustable; the recommended SCT method uses a star test and a single-beam collimator to record the secondary setting.\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\u003eBarlow attachment for laser collimators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eDisc with a small mounted Barlow lens and flat white front screen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits\u003c\/td\u003e\n\u003ctd\u003eThreaded aperture of Howie Glatter collimators, current 3\/8-32 thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUse\u003c\/td\u003e\n\u003ctd\u003eBarlowed primary mirror collimation of Newtonians, solo adjustment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBarlow laser collimator attachment\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\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eHowie Glatter Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Howie Glatter","offers":[{"title":"Default Title","offer_id":44967298531613,"sku":"SI-BARATT","price":112.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-Barlow-Laser-Collimator-Attachment-SI-BARATT-1__12181.1596314050.1280.1280.jpg?v=1684339893"},{"product_id":"howie-glatter-variable-laser-brightness-battery-cap-switch-upgrade-for-laser-collimators","title":"Howie Glatter Variable Laser Brightness Battery Cap\/Switch Upgrade for Laser Collimators","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eVariable laser brightness battery cap and switch\u003c\/li\u003e\n\u003cli\u003eUpgrade for Howie Glatter laser collimators\u003c\/li\u003e\n\u003cli\u003eLets you dim a beam that is brighter than you need\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\u003eHowie Glatter Variable Laser Brightness Battery Cap\/Switch Upgrade for Laser Collimators\u003c\/h2\u003e\n\u003cp\u003eThis is Starlight Instruments' Variable Laser Brightness battery cap and switch, an upgrade for Howie Glatter \u003ca href=\"\/en-int\/collections\/collimation-tools\"\u003elaser collimators\u003c\/a\u003e. It replaces the collimator's battery cap and switch so the beam brightness can be varied.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eWhen a dimmer beam helps\u003c\/h3\u003e\n\u003cp\u003eThere are two cases where a full-power beam is more than you need: the 532nm green collimator, which is overly bright for night-time collimation in most circumstances, and situations where the full beam is too bright, for which the 1mm aperture stop is supplied. Variable brightness serves the same purpose without changing the collimation procedure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBefore you order\u003c\/h3\u003e\n\u003cp\u003eStarlight does not publish a brightness range or the collimator versions it fits beyond 'Howie Glatter laser collimators'. Starlight sells its Howie Glatter attachments in an older super fine 5\/16-56 thread version and the current coarser 3\/8-32 thread version (identified by a visible ring), so check which collimator version you own.\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 know if this Variable Brightness Upgrade will fit my Howie Glatter laser collimator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt is an upgrade for Howie Glatter laser collimators, and no thread or version list is given. Howie Glatter collimators exist in an older fine-thread version and the current coarser 3\/8-32 thread version (identified by a visible ring), so check which one you own.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen is it most useful to adjust the brightness on the Howie Glatter collimator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen the beam is brighter than you need: the 532nm green collimator is overly bright for night-time collimation in most circumstances, and the full beam can be too bright in some situations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Howie Glatter Variable Brightness Upgrade change the collimation procedure?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the collimation procedure for your telescope remains exactly the same. This upgrade simply provides an extra degree of control over the tool, letting you set the beam brightness for the conditions.\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\u003eVariable Laser Brightness battery cap and switch upgrade\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits\u003c\/td\u003e\n\u003ctd\u003eHowie Glatter laser collimators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eVariable Laser Brightness battery cap\/switch\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\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eHowie Glatter Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Howie Glatter","offers":[{"title":"Default Title","offer_id":44967298564381,"sku":"SI-VLB","price":84.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-Variable-Laser-Brightness-Battery-Cap-Switch-Upgrade-for-Laser-Collimators-SI-VLB-1__03688.1596314050.1280.1280.jpg?v=1684339898"},{"product_id":"howie-glatter-single-650nm-red-beam-laser-collimator-1-25","title":"Howie Glatter Single 650nm Red Beam Laser Collimator - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e650nm Single Red Laser Beam\u003c\/li\u003e\n\u003cli\u003eFits Standard 1.25\" Eyepiece Holders\u003c\/li\u003e\n\u003cli\u003e15 Arc-Second Factory Alignment Accuracy\u003c\/li\u003e\n\u003cli\u003eIncludes Removable 1mm Aperture Stop\u003c\/li\u003e\n\u003cli\u003eShock-Tested to Maintain Alignment\u003c\/li\u003e\n\u003cli\u003eUses one 123A Lithium Battery\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\u003eHowie Glatter Single 650nm Red Beam Laser Collimator - 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe Howie Glatter Single 650nm Red Beam Laser Collimator provides a precise optical reference line for aligning any telescope, built around a solid-state laser diode aligned to within 15 arc-seconds of the collimator body's cylindrical axis. This Class IIIa laser establishes a beam accurate to 0.1 inches at a distance of 20 feet, ensuring your optics can be centered for maximum image contrast and resolution. Powered by a single 123A lithium battery, this tool is the foundation for achieving and maintaining perfect collimation.\u003c\/p\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 15 Arc-Second Reference Beam, Shock-Tested for Alignment\u003c\/h3\u003e\n\u003cp\u003eThe core of any laser collimator is the certainty that its beam is perfectly parallel to its body. Each Howie Glatter collimator is factory-aligned to a tolerance of 15 arc-seconds and then subjected to a rigorous shock test, being struck at least a dozen times on three axes to simulate drops and impacts. The alignment is then re-checked to ensure it holds, so the reference beam you use for collimation stays true.\u003c\/p\u003e\n\u003cp\u003eThis durability means the collimator can withstand a drop from the \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e of a large \u003ca href=\"\/en-int\/collections\/dobsonians\"\u003eDobsonian\u003c\/a\u003e without losing its critical alignment. It’s a tool built not just for precision, but for repeatable precision under real-world observing 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\u003e650nm Beam with 1mm Aperture Stop for Pinpoint Accuracy\u003c\/h3\u003e\n\u003cp\u003eThis model uses a 650nm red laser, which is perfectly adequate for collimation in dark conditions. To refine the standard fuzzy-edged beam of a diode laser, a removable 1mm aperture stop is included. When pushed into the laser aperture, it transforms the beam into a tiny, circular point surrounded by faint diffraction rings.\u003c\/p\u003e\n\u003cp\u003eThis pattern makes it significantly easier to judge the exact center of the beam's impact on your primary mirror's center mark or on the face of the collimator itself. The surrounding rings help center the beam very accurately, and the small stop increases precision when locating the return spot on the collimator face.\u003c\/p\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 for Newtonians, Refractors, and Cassegrains\u003c\/h3\u003e\n\u003cp\u003eThe single-beam laser provides the essential reference line needed for the fundamental collimation steps of any telescope design. The process always begins by establishing the \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepiece\u003c\/a\u003e axis as the master reference, from which all other components are aligned.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor Newtonians:\u003c\/strong\u003e The laser is used to adjust the secondary mirror to aim the beam at the exact center of the primary, and then to adjust the primary mirror to return the beam precisely back into the collimator's aperture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor Refractors:\u003c\/strong\u003e After ensuring the beam is centered on the objective lens, the laser's reflection from the rear lens surface is used to adjust the objective's tilt until the return beam is centered on the collimator.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor Cassegrains:\u003c\/strong\u003e A single-beam collimator allows the back-axis and secondary alignment; a holographic attachment is needed for primary and corrector alignment. This model can also be used to record a star-collimated secondary position on an SCT for later reproduction.\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\u003eHowie Glatter 650nm vs. 635nm: Choosing the Right Wavelength\u003c\/h3\u003e\n\u003cp\u003eHowie Glatter offers red lasers in two wavelengths, 650nm and 635nm, both with the same radiometric power output. The primary difference is how the human eye perceives their brightness. The 635nm laser appears two to three times brighter to the eye, making it a better choice if you frequently collimate in twilight or brighter ambient light.\u003c\/p\u003e\n\u003cp\u003eFor most users, the 650nm laser is entirely sufficient. Because a single-beam collimator concentrates all its light into one spot, the 650nm laser is quite adequate in darkness. The 635nm diode costs more, which is reflected in its price.\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 collimate my 10\" f\/4.7 Newtonian with the Howie Glatter 650nm laser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFirst, insert the Howie Glatter 1.25\" collimator into your focuser. Adjust your secondary mirror's tilt until the red laser dot hits the center mark on your primary mirror. Then, looking at the return beam on the face of the collimator, adjust your primary mirror's collimation knobs until the reflected laser dot disappears back into the aperture it came from. The included 1mm aperture stop gives a tiny, circular spot that is easier to center.\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 1mm aperture stop included with the Howie Glatter collimator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 1mm aperture stop is a push-fit cap that narrows the laser beam. This creates a much smaller, more defined circular spot that looks like a star's diffraction pattern. This tiny point makes it much easier to judge the beam's center, allowing for more accurate and precise alignment of your primary mirror's return beam.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 650nm Howie Glatter laser bright enough for collimation?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, in darkness. The 650nm laser is quite adequate in darkness, and especially for single-beam collimators, which concentrate all the laser light in the central beam. For early twilight, choose the 635nm version, which looks about two or three times brighter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this Howie Glatter laser on my Schmidt-Cassegrain Telescope (SCT)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, for the secondary. On commercial \u003ca href=\"\/en-int\/collections\/schmidt-cassegrain-telescopes\"\u003eSCTs\u003c\/a\u003e only the secondary tilt is adjustable. Find its best setting with a star test at high power, then insert the collimator in the back (no \u003ca href=\"\/en-int\/collections\/diagonals\"\u003ediagonal\u003c\/a\u003e) and note where the return beam lands on the collimator face. You can return the secondary to that spot any time; the 1mm aperture stop makes the spot easier to locate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Howie Glatter 1.25\" laser maintain its alignment if I drop it?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt is designed to. Each collimator is shock-tested on three axes after its initial 15 arc-second alignment to ensure it can withstand the equivalent of a fall from an \u003ca href=\"\/en-int\/collections\/visual-adapters\"\u003eeyepiece holder\u003c\/a\u003e without losing its calibration. This rugged construction is a key feature that ensures reliable and repeatable accuracy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I upgrade this single-beam Howie Glatter collimator later?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The front of the collimator features a 3\/8-32 thread that accepts optional accessories sold separately. You can add a holographic attachment (square grid, concentric circle or cross hair) or a \u003ca href=\"\/en-int\/collections\/barlows-and-extenders\"\u003eBarlow\u003c\/a\u003e attachment to expand its capabilities for different collimation techniques.\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003eLC125-650\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWavelength\u003c\/td\u003e\n\u003ctd\u003e650 nm (red)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeam\u003c\/td\u003e\n\u003ctd\u003eSingle beam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits\u003c\/td\u003e\n\u003ctd\u003e1.25\" eyepiece holders\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLaser Class\u003c\/td\u003e\n\u003ctd\u003eIIIa (maximum output 5 mW)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlignment\u003c\/td\u003e\n\u003ctd\u003eFactory-aligned to 15 arc-seconds (0.1 in at 20 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLaser Source\u003c\/td\u003e\n\u003ctd\u003eSolid-state laser diode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock Testing\u003c\/td\u003e\n\u003ctd\u003eEach collimator struck at least a dozen times on three axes, alignment rechecked\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003e123A lithium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAttachment Thread\u003c\/td\u003e\n\u003ctd\u003e3\/8-32 (current version, identified by a visible ring)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional Accessories\u003c\/td\u003e\n\u003ctd\u003eHolographic attachments (square grid, concentric circle, cross hair), Barlow attachment, Variable Laser Brightness cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUse\u003c\/td\u003e\n\u003ctd\u003eNewtonian, refractor and Cassegrain collimation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eHowie Glatter 650 nm single-beam 1.25\" laser collimator\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\"\u003e123A lithium battery\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 mm aperture stop\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\"\u003eProtective case\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\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eHowie Glatter Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Howie Glatter","offers":[{"title":"Default Title","offer_id":44967298629917,"sku":"SI-LC125-650","price":294.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-Single-Red-Beam-1-25-inch-Laser-Collimator-650nm-SI-LC125-650-1__87942.1596314051.1280.1280.jpg?v=1684339901"},{"product_id":"howie-glatter-single-635nm-red-beam-laser-collimator-2","title":"Howie Glatter Single 635nm Red Beam Laser Collimator - 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e635nm single red laser beam\u003c\/li\u003e\n\u003cli\u003eFits standard 2\" eyepiece holders\u003c\/li\u003e\n\u003cli\u003eFactory-aligned to 15 arc-seconds for high precision\u003c\/li\u003e\n\u003cli\u003eShock-tested on three axes to maintain alignment\u003c\/li\u003e\n\u003cli\u003eIncludes a 1mm aperture stop for a finer beam\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\u003eHowie Glatter Single 635nm Red Beam Laser Collimator - 2\"\u003c\/h2\u003e\n\u003cp\u003eThe Howie Glatter Single 635nm Red Beam Laser Collimator provides a reference beam aligned to within 15 arc-seconds, the reference line for aligning your telescope's optics. This 2\" collimator uses a Class IIIa solid-state laser diode with a 635 nm wavelength for superior brightness, and its alignment is confirmed after being shock-tested on three separate axes. The design includes a 3\/8-32 thread for optional holographic attachments and runs on a single 123A lithium battery.\u003c\/p\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 Shock-Proof Design with 15 Arc-Second Precision\u003c\/h3\u003e\n\u003cp\u003eA laser collimator's accuracy is meaningless if it can't hold its alignment. Each Howie Glatter collimator is factory-aligned to 15 arc-seconds, an accuracy of 0.1 inches at 20 feet, and then subjected to a rigorous shock test. The collimator is struck at least a dozen times on three axes to simulate real-world drops and impacts, after which the alignment is re-checked to ensure it has not shifted. This robust construction means you can trust its reference beam is true every time you collimate.\u003c\/p\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 635nm Wavelength and 1mm Aperture Stop\u003c\/h3\u003e\n\u003cp\u003eThis collimator uses a 635 nm red laser, which appears two to three times brighter to the human eye than a 650 nm laser of the same power. This increased visibility makes collimating in twilight or other ambient light conditions significantly easier. For ultimate precision, the collimator includes a removable 1mm aperture stop that push-fits into the laser aperture. This stop transforms the standard fuzzy-edged laser dot into a tiny, circular diffraction pattern, allowing for more accurate centering of the beam on your primary and secondary mirrors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e2\" Barrel and 3\/8-32 Accessory Thread\u003c\/h3\u003e\n\u003cp\u003eDesigned to fit securely in any standard 2\" \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e or \u003ca href=\"\/en-int\/collections\/visual-adapters\"\u003eeyepiece holder\u003c\/a\u003e, this collimator establishes a stable reference line parallel to your focuser's axis. The front of the unit features a 3\/8-32 thread, allowing for the attachment of optional accessories sold separately. This enables you to convert the single-beam output into a projected pattern using Howie Glatter's holographic attachments, expanding its utility for more advanced collimation techniques on \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonians\u003c\/a\u003e and other telescope designs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eHowie Glatter 635nm vs. 650nm: Which Red Laser is Right for You?\u003c\/h3\u003e\n\u003cp\u003eHowie Glatter collimators are offered with two red laser options, and the choice depends on your observing environment. While both have the same 5 mW maximum power output, their apparent brightness differs.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e635nm (This Model):\u003c\/strong\u003e Appears significantly brighter to the eye. This is the ideal choice if you frequently collimate in early twilight or in areas with some ambient light, where a dimmer beam would be difficult to see.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e650nm:\u003c\/strong\u003e A perfectly adequate and more economical choice for collimating in complete darkness. In darkness the 650nm laser is quite adequate, especially for single-beam collimators, which concentrate all the light in the central beam.\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 is the advantage of the Howie Glatter 635nm laser over a 650nm version?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 635 nm wavelength laser in this Howie Glatter collimator appears about two to three times brighter to the human eye than a 650 nm laser of the same power. This makes the laser dot much easier to see when collimating in twilight or other conditions with ambient light.\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 1mm aperture stop with the Howie Glatter collimator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 1mm aperture stop is a push-fit cap that narrows the laser output. It is designed to solve two problems: it reduces the beam's brightness for more comfortable viewing and, more importantly, it transforms the naturally fuzzy-edged, elliptical laser dot into a tiny, perfectly circular diffraction pattern. This \"star-like\" pattern allows for much higher precision when centering the beam on your mirror's center mark.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I collimate my 8\" f\/5 Newtonian with this Howie Glatter laser collimator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor a Newtonian telescope, the process involves two main steps after inserting the Howie Glatter collimator into your 2\" focuser: 1. Adjust the Secondary Mirror: Use the secondary mirror's adjustment screws to direct the red laser dot so it lands exactly in the center of your primary mirror's center-spot or ring. 2. Adjust the Primary Mirror: Go to the back of your telescope and use the primary mirror's collimation knobs. Adjust them until the return beam, reflected from the primary and back off the secondary, re-enters the aperture of the laser collimator itself. Once the beam disappears back into its source, your Newtonian is collimated.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Howie Glatter 2\" laser collimator on my Schmidt-Cassegrain Telescope (SCT)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, but the process is different from a Newtonian. Since the only user adjustment on most \u003ca href=\"\/en-int\/collections\/schmidt-cassegrain-telescopes\"\u003eSCTs\u003c\/a\u003e is the secondary mirror's tilt, the best practice is to first achieve perfect collimation using a real star (a star test). Immediately after, replace the \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepiece\u003c\/a\u003e with the Howie Glatter laser collimator (in single beam mode, without a \u003ca href=\"\/en-int\/collections\/diagonals\"\u003ediagonal\u003c\/a\u003e). The position where the return beam hits the face of the collimator is now your reference point for perfect collimation. You can mark this spot to quickly return your SCT to that precise alignment anytime without needing another star test.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Howie Glatter laser collimator safe to use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, when used correctly. It is a Class IIIa laser with a maximum output of 5 mW. You must avoid any direct or mirror-reflected eye exposure to the beam. When collimating a Newtonian or Cassegrain, always first check if a misaligned mirror is causing the beam to exit the front of the telescope. For \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractors\u003c\/a\u003e, where the beam always exits the front, place a strip of masking tape over the \u003ca href=\"\/en-int\/collections\/dew-prevention-and-control\"\u003edew shield\u003c\/a\u003e opening to act as a beam stop.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I know if my Howie Glatter collimator is aligned?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eEvery Howie Glatter collimator is factory-aligned to a precision of 15 arc-seconds. To ensure this alignment holds, each unit is subjected to a shock test where it is struck repeatedly on three axes. The alignment is then re-verified. This process ensures the collimator will withstand normal handling and even accidental drops without losing its critical alignment.\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003eLC2-635\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWavelength\u003c\/td\u003e\n\u003ctd\u003e635 nm (red)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeam\u003c\/td\u003e\n\u003ctd\u003eSingle beam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits\u003c\/td\u003e\n\u003ctd\u003e2\" eyepiece holders\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLaser Class\u003c\/td\u003e\n\u003ctd\u003eIIIa (maximum output 5 mW)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlignment\u003c\/td\u003e\n\u003ctd\u003eFactory-aligned to 15 arc-seconds (0.1 in at 20 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLaser Source\u003c\/td\u003e\n\u003ctd\u003eSolid-state laser diode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock Testing\u003c\/td\u003e\n\u003ctd\u003eEach collimator struck at least a dozen times on three axes, alignment rechecked\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003e123A lithium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAttachment Thread\u003c\/td\u003e\n\u003ctd\u003e3\/8-32 (current version, identified by a visible ring)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional Accessories\u003c\/td\u003e\n\u003ctd\u003eHolographic attachments (square grid, concentric circle, cross hair), Barlow attachment, Variable Laser Brightness cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUse\u003c\/td\u003e\n\u003ctd\u003eNewtonian, refractor and Cassegrain collimation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eHowie Glatter 635 nm single-beam 2\" laser collimator\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\"\u003e123A lithium battery\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 mm aperture stop\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\"\u003eProtective case\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\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eHowie Glatter Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Howie Glatter","offers":[{"title":"Default Title","offer_id":44967298662685,"sku":"SI-LC2-635","price":420.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-Single-Red-Beam-2-inch-Laser-Collimator-635nm-SI-LC2-635-1__98265.1596314051.1280.1280.jpg?v=1684339904"},{"product_id":"howie-glatter-single-635nm-red-beam-laser-collimator-1-25-2","title":"Howie Glatter Single 635nm Red Beam Laser Collimator - 1.25\"\/2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e635nm single red laser beam\u003c\/li\u003e\n\u003cli\u003eFits both 1.25\" and 2\" eyepiece holders\u003c\/li\u003e\n\u003cli\u003eFactory-aligned to 15 arc-seconds\u003c\/li\u003e\n\u003cli\u003eClass IIIa laser with maximum 5 mW output\u003c\/li\u003e\n\u003cli\u003eIncludes 1mm aperture stop for a high-precision beam\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\u003eHowie Glatter Single 635nm Red Beam Laser Collimator - 1.25\"\/2\"\u003c\/h2\u003e\n\u003cp\u003eThe Howie Glatter Single 635nm Red Beam Laser Collimator establishes an exacting optical axis reference, factory-aligned to within 15 arc-seconds for professional-grade collimation. This Class IIIa laser is listed for 1.25\" and 2\" \u003ca href=\"\/en-int\/collections\/visual-adapters\"\u003eeyepiece holders\u003c\/a\u003e, providing a solid-state 635 nm beam that appears two to three times brighter to the human eye than standard 650nm lasers. Every unit is subjected to rigorous shock testing on three axes to ensure its alignment holds true, delivering a consistent reference line for collimating your \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonian\u003c\/a\u003e, \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractor\u003c\/a\u003e, or Cassegrain 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\u003eA 15 Arc-Second Alignment Reference\u003c\/h3\u003e\n\u003cp\u003eAt the core of this tool is a solid-state laser diode precisely aligned to the collimator's cylindrical body. This alignment is certified to within 15 arc-seconds, which translates to a deviation of just 0.1 inches at a distance of 20 feet. When you insert the collimator into your \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e, it projects a beam that perfectly represents the focuser's central axis, serving as the definitive reference line for aligning all other optical components.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eShock-Tested Build for Unwavering Accuracy\u003c\/h3\u003e\n\u003cp\u003eA laser collimator is only useful if it holds its alignment. To guarantee this, each Howie Glatter collimator is struck at least a dozen times on three separate axes against a urethane block and its alignment is re-verified. This process ensures the collimator can withstand the inevitable bumps and drops of field use without losing its critical 15 arc-second precision, setting it apart from less robust designs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePinpoint Accuracy with the 1mm Aperture Stop\u003c\/h3\u003e\n\u003cp\u003eThe raw beam from any diode laser has a fuzzy, elliptical profile, making it difficult to judge its precise center. This collimator includes a push-fit 1mm aperture stop that solves this problem. When installed, it constricts the beam, producing a tiny, circular point of light that allows for far more accurate centering on your primary mirror's center mark. At a distance, this focused beam creates a star-like diffraction pattern, with a central dot and surrounding rings that further aid in achieving perfect 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\u003eUniversal 1.25\"\/2\" Fit for All Telescope Types\u003c\/h3\u003e\n\u003cp\u003eThis collimator fits both 1.25\" and 2\" eyepiece holders, so one tool can serve telescopes with either size, whether you are performing a full Newtonian collimation, checking refractor objective tilt, or aligning the secondary on a Cassegrain. The body also features a 3\/8-32 thread for attaching optional accessories like Howie Glatter's holographic attachments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eChoosing the 635nm Model Over the 650nm\u003c\/h3\u003e\n\u003cp\u003eWhile both the 650nm and 635nm Howie Glatter lasers have the same 5 mW maximum power output, their visibility is very different. The human eye is more sensitive to the 635nm wavelength, making it appear two to three times brighter than the 650nm version.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChoose this 635nm model if:\u003c\/strong\u003e You plan to collimate in early twilight or other brighter ambient light conditions where a standard laser can be difficult to see.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConsider the 650nm model if:\u003c\/strong\u003e You primarily collimate in full darkness, where the brightness of the 635nm beam is less critical and the standard model is perfectly adequate.\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 Howie Glatter 635nm collimator maintain its alignment so well?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eEach collimator undergoes a rigorous shock-testing procedure at the factory. After its initial alignment to 15 arc-seconds, the unit is struck at least a dozen times on three different axes. The alignment is then rechecked to ensure it has not shifted, and the collimators withstand a shock equivalent to a drop from \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepiece\u003c\/a\u003e position up the ladder on a big Dob.\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 1mm aperture stop?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe aperture stop is used to increase collimation accuracy. It push-fits into the laser aperture and transforms the standard fuzzy, elliptical laser dot into a tiny, circular beam. This makes it much easier to judge the exact center of the beam on your primary mirror's center marking. The resulting beam also creates a diffraction pattern that can be used for even finer centering adjustments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Howie Glatter single-beam laser to collimate my Newtonian without a center spot on the primary?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, for a single-beam laser collimator, a center spot or ring on the primary mirror is essential. The process requires you to adjust the secondary mirror until the laser beam hits the exact center of the primary. Without a reference mark, it is impossible to judge this alignment accurately by eye. A holographic attachment (sold separately) allows secondary adjustment without a center dot, by making the pattern symmetrical at the edge of the primary.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I safely use this Howie Glatter laser collimator with my refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSafety is critical. The laser beam will always exit the front of a refractor. Before you begin, place a strip of masking tape across the opening of the \u003ca href=\"\/en-int\/collections\/dew-prevention-and-control\"\u003edew shield\u003c\/a\u003e to act as a beam stop. This prevents the Class IIIa laser beam from exiting the telescope. Always avoid direct or mirror-reflected eye exposure to the beam.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen should I choose the 635nm Howie Glatter collimator over the 650nm version?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eChoose this 635nm model if you often collimate in brighter conditions, such as during twilight. Its beam appears two to three times brighter to the eye, making it much easier to see. For collimation in complete darkness, the standard 650nm laser is sufficient and perfectly adequate for single-beam use.\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003eLC2125-635\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWavelength\u003c\/td\u003e\n\u003ctd\u003e635 nm (red)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBeam\u003c\/td\u003e\n\u003ctd\u003eSingle beam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits\u003c\/td\u003e\n\u003ctd\u003e1.25\" and 2\" eyepiece holders\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLaser Class\u003c\/td\u003e\n\u003ctd\u003eIIIa (maximum output 5 mW)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlignment\u003c\/td\u003e\n\u003ctd\u003eFactory-aligned to 15 arc-seconds (0.1 in at 20 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLaser Source\u003c\/td\u003e\n\u003ctd\u003eSolid-state laser diode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShock Testing\u003c\/td\u003e\n\u003ctd\u003eEach collimator struck at least a dozen times on three axes, alignment rechecked\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003e123A lithium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAttachment Thread\u003c\/td\u003e\n\u003ctd\u003e3\/8-32 (current version, identified by a visible ring)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional Accessories\u003c\/td\u003e\n\u003ctd\u003eHolographic attachments (square grid, concentric circle, cross hair), Barlow attachment, Variable Laser Brightness cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUse\u003c\/td\u003e\n\u003ctd\u003eNewtonian, refractor and Cassegrain collimation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eHowie Glatter 635 nm single-beam 1.25\/2\" laser collimator\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\"\u003e123A lithium battery\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 mm aperture stop\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\"\u003eProtective case\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\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eHowie Glatter Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Howie Glatter","offers":[{"title":"Default Title","offer_id":44967298695453,"sku":"SI-LC2125-635","price":448.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-Single-Red-Beam-2-inch-1-25-inch-Laser-Collimator-SI-LC2125-635-1__32247.1596314051.1280.1280.jpg?v=1684339907"},{"product_id":"howie-glatter-holographic-attachment-w-concentric-circle-pattern","title":"Howie Glatter Holographic Attachment w\/ Concentric Circle Pattern","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eProjects a pattern of 9 concentric circles\u003c\/li\u003e\n\u003cli\u003e10° pattern spread ideal for f\/5.7 and slower optics\u003c\/li\u003e\n\u003cli\u003eBrighter pattern is ideal for Cassegrain collimation\u003c\/li\u003e\n\u003cli\u003eRemovable attachment with 3\/8-32 thread\u003c\/li\u003e\n\u003cli\u003eFits current-generation Howie Glatter laser collimators\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\u003eHowie Glatter Holographic Attachment w\/ Concentric Circle Pattern\u003c\/h2\u003e\n\u003cp\u003eThe Howie Glatter Holographic Attachment with Concentric Circle Pattern transforms a single-beam \u003ca href=\"\/en-int\/collections\/collimation-tools\"\u003elaser collimator\u003c\/a\u003e into a precision alignment tool, projecting a pattern of 9 concentric circles across a 10° spread. This removable diffractive optical element is recommended for Cassegrain telescopes and scopes around f\/5.7 or slower, attaching via the 3\/8-32 thread to modern Howie Glatter laser collimators.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e9 Concentric Circles: A 10° Pattern for Slower Optics\u003c\/h3\u003e\n\u003cp\u003eThis attachment diffracts the laser beam into a symmetrical pattern of 9 concentric circles, providing a clear visual reference for centering optical elements. The pattern's 10° spread is engineered to reach the edge of primary mirrors in telescopes with focal ratios of f\/5.7 and slower, making it a specialized tool for precise alignment in these systems.\u003c\/p\u003e\n\u003cp\u003eThe key advantage of the concentric circle pattern is its brightness. By concentrating the laser's light into a smaller area compared to a grid pattern, it produces a more intense projection. This is critical for Cassegrain collimation, where the pattern's visibility on the mirror surface depends on light scattered from dust or optical roughness; a brighter pattern is better, especially if the mirrors are very 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\u003eRemovable 3\/8-32 Thread Design for Modern Glatter Collimators\u003c\/h3\u003e\n\u003cp\u003eDesigned as a modular accessory, this holographic attachment threads directly onto the front of any current-generation Howie Glatter laser collimator using the 3\/8-32 thread. You can easily unscrew the attachment to revert to a standard single-beam laser for tasks like primary mirror alignment in a \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonian\u003c\/a\u003e, then reinstall it to retain holographic capability.\u003c\/p\u003e\n\u003cp\u003eEach holographic attachment is individually fitted to a collimator during manufacturing to ensure maximum alignment accuracy. While the attachment can be physically moved between different collimators, doing so may compromise the holographic mode's high precision. This is a critical trade-off: for the most accurate results, the attachment should remain dedicated to a single laser collimator 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\u003eConcentric Circle vs. Square Grid: Choosing the Right Pattern\u003c\/h3\u003e\n\u003cp\u003eThe primary alternative to the concentric circle attachment is Howie Glatter's square grid pattern. The square grid offers a much wider 21° spread, making it the superior choice for collimating very fast Newtonians with focal ratios down to f\/2.7. Its pattern is designed for general-purpose use across a wide variety of telescope designs.\u003c\/p\u003e\n\u003cp\u003eYou should choose the Concentric Circle attachment specifically for its advantages in slower systems. Its narrower 10° spread creates a brighter, more concentrated pattern that is easier to see on the mirror surfaces of Cassegrain telescopes, where the pattern impact is sometimes scrutinized on the mirror.\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\"\u003eWill the Howie Glatter Concentric Circle attachment fit my older laser collimator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis attachment is designed for current-generation Howie Glatter laser collimators that use the coarser 3\/8-32 thread, identified by a visible ring. It will not fit older models that used a finer 5\/16-56 thread.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the Concentric Circle attachment to collimate my 8\" f\/10 SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWith the collimator in the \u003ca href=\"\/en-int\/collections\/visual-adapters\"\u003evisual back\u003c\/a\u003e (no \u003ca href=\"\/en-int\/collections\/diagonals\"\u003ediagonal\u003c\/a\u003e), check that the circles are centered on the secondary. On a commercial SCT only the secondary tilt is adjustable; find its best setting with a star test at high power, then record where the return beam lands on the collimator face in single-beam mode (diffractor removed), so you can return the secondary to it any time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is this Concentric Circle attachment recommended for Cassegrains over the square grid?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe concentric circle pattern is brighter. Its 10° spread concentrates the laser's light over a smaller area than the square grid's wide pattern. In a Cassegrain, the pattern is viewed on the mirror surface via scattered light, so a brighter pattern is much easier to see, especially if your optics are very clean.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Concentric Circle attachment useful for my f\/4 Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this pattern is not the correct tool for a fast Newtonian. The 10° pattern spread is too narrow and is optimized for optics at f\/5.7 and slower. For an f\/4 \u003ca href=\"\/en-int\/collections\/dobsonians\"\u003eDobsonian\u003c\/a\u003e, the Howie Glatter square grid attachment is the recommended tool, as its wider pattern is designed to work with optics as fast as f\/2.7.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I swap this Concentric Circle attachment with a friend's square grid attachment?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile they will physically thread on, it is not recommended. Howie Glatter holographic attachments are individually aligned to their collimator bodies at the factory for maximum precision. Swapping attachments between different collimators will likely degrade the alignment accuracy in holographic mode.\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\u003ePattern\u003c\/td\u003e\n\u003ctd\u003e9 concentric circles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpread\u003c\/td\u003e\n\u003ctd\u003e10°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptics Covered\u003c\/td\u003e\n\u003ctd\u003ef\/5.7 and slower\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrightness\u003c\/td\u003e\n\u003ctd\u003eBrighter than the square grid (light spread over a smaller area)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended For\u003c\/td\u003e\n\u003ctd\u003eCassegrain telescopes and scopes around f\/5.7 or slower\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eRemovable diffractive optical element (hologram)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits\u003c\/td\u003e\n\u003ctd\u003eHowie Glatter laser collimators, current 3\/8-32 thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eConcentric circle holographic attachment\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\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eHowie Glatter Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Howie Glatter","offers":[{"title":"Default Title","offer_id":44967298728221,"sku":"SI-HOLA-Circle","price":154.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-Holographic-Attachment-Concentric-Circle-Pattern-for-HOLOGRAPHIC-COLLIMAtoR-SI-HOLA-Circle-1__45542.1596314052.1280.1280.jpg?v=1684339909"},{"product_id":"howie-glatter-tublug-2-newtonian-collimator","title":"Howie Glatter TuBLUG-2\" Newtonian Collimator","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eBarlowed laser collimation of the Newtonian primary with a 2\" laser\u003c\/li\u003e\n\u003cli\u003eBuilt-in anti-reflection coated Barlow lens\u003c\/li\u003e\n\u003cli\u003eMatte-white 45° screen, visible outside the focuser\u003c\/li\u003e\n\u003cli\u003eNylon screws hold the laser without marring\u003c\/li\u003e\n\u003cli\u003eUse with a laser in single-beam mode, aperture stop removed\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\u003eHowie Glatter TuBLUG-2\" Newtonian Collimator\u003c\/h2\u003e\n\u003cp\u003eThe TuBLUG (Tube + \u003ca href=\"\/en-int\/collections\/barlows-and-extenders\"\u003eBarlow\u003c\/a\u003e + Plug) is Howie Glatter's Barlowed laser collimation accessory for adjusting the primary mirror of a \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonian\u003c\/a\u003e, made by Starlight Instruments. This version is for 2\" \u003ca href=\"\/en-int\/collections\/collimation-tools\"\u003elaser collimators\u003c\/a\u003e. It is used with a regular laser collimator in single-beam mode on closed tube \u003ca href=\"\/en-int\/collections\/reflectors\"\u003ereflectors\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\u003eHow Barlowed collimation works\u003c\/h3\u003e\n\u003cp\u003eThe TuBLUG goes in the \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e and the laser collimator inserts into the other side of it. Its built-in anti-reflection coated Barlow lens, mounted in a central axial hole, diverges the beam, so the beam reaching the primary is large and defocused and easily covers the primary's center marker.\u003c\/p\u003e\n\u003cp\u003eAfter reflection from the primary, the shadow of the center marker returns to the TuBLUG's white screen. You adjust the primary until the shadow is centered on the screen's central hole. If the center marker is of a certain size, a small red ring of light appears outside the central hole and inside the marker's shadow; making that ring even in thickness helps the adjustment.\u003c\/p\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 screen\u003c\/h3\u003e\n\u003cp\u003eThe TuBLUG has a matte-white 45° face. It is easily visible from the primary adjustment position, and the TuBLUG can be turned 180° to face the front; it has a cut-out. The screen sits outside the focuser, so it can be seen when collimating the primary from below, and the shadow is more easily seen in twilight or darkness than on a sunny afternoon.\u003c\/p\u003e\n\u003cp\u003eIf you cannot see the screen from below the primary, use a simple 5-6x close-focusing \u003ca href=\"\/en-int\/collections\/monoculars\"\u003emonocular\u003c\/a\u003e; on smaller scopes you can sit between the bottom of the scope and the focuser and lean one way to turn a knob and the other to see the screen.\u003c\/p\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\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInsert the TuBLUG in the focuser and tighten the focuser binder against it. Aim the window toward the primary mirror if you will watch the screen from below the primary.\u003c\/li\u003e\n\u003cli\u003eRemove the aperture stop from the laser if it has one (you want a large beam) and insert the laser fully into the TuBLUG; nylon screws hold it without marring.\u003c\/li\u003e\n\u003cli\u003eAdjust the primary until the shadow of the center marker is centered on the central hole.\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\u003eTuBLUG-2\" or TuBLUG-1.25\"\u003c\/h3\u003e\n\u003cp\u003eHowie makes the TuBLUG for 1.25\" and 2\" lasers. Choose this 2\" version for a 2\" laser collimator.\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 is Barlowed collimation with the TuBLUG-2\" more accurate than a standard laser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWith the TuBLUG, the beam reaching the primary is large and defocused, and after reflection the shadow of the primary's center marker is returned to the white screen. You adjust the primary until that shadow is centered on the central hole, rather than judging a single return spot.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Howie Glatter TuBLUG-2\" with a 1.25\" laser collimator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. Howie makes the TuBLUG in 1.25\" and 2\" versions for 1.25\" and 2\" lasers; use the \u003ca href=\"\/en-int\/products\/howie-glatter-tublug-1-25-newtonian-collimator\"\u003eTuBLUG-1.25\"\u003c\/a\u003e with a 1.25\" laser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat's the best way to see the TuBLUG-2\" screen when adjusting the primary on my 12\" f\/5 Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIf you cannot see the shadow on the screen from below the primary end, use a simple 5-6x close-focusing monocular from there.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a closed-tube 8\" Newtonian. Is the TuBLUG-2\" the right tool for primary alignment?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe TuBLUG is for Barlowed primary mirror alignment on closed tube reflectors. Check that your focuser takes it: the TuBLUG goes in the focuser and is held by the focuser binder.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need to remove the aperture stop from my laser to use the TuBLUG-2\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. For the Barlowed method to work correctly, you need a large, defocused beam to illuminate the primary mirror's center mark. If your laser collimator has a removable single-hole aperture stop, you must take it off before inserting the laser into the TuBLUG-2\".\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\u003eBarlowed laser collimation accessory (Tube + Barlow + Plug) for Newtonians\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFor\u003c\/td\u003e\n\u003ctd\u003e2\" laser collimators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits\u003c\/td\u003e\n\u003ctd\u003eFocuser drawtube (tightened by the focuser binder)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScreen\u003c\/td\u003e\n\u003ctd\u003eLarge white screen visible outside the focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens\u003c\/td\u003e\n\u003ctd\u003eBuilt-in anti-reflection coated Barlow lens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLaser Retention\u003c\/td\u003e\n\u003ctd\u003eNylon screws (non-marring)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTuBLUG 2\"\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\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eHowie Glatter Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Howie Glatter","offers":[{"title":"Default Title","offer_id":44967298760989,"sku":"SI-TUBLUG2","price":336.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-TuBLUG-2-inch-Newtonian-Collimator-SI-TUBLUG2-1__10047.1596314052.1280.1280.jpg?v=1684339911"},{"product_id":"howie-glatter-tublug-1-25-newtonian-collimator","title":"Howie Glatter TuBLUG-1.25\" Newtonian Collimator","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eBarlowed laser collimation of the Newtonian primary with a 1.25\" laser\u003c\/li\u003e\n\u003cli\u003eBuilt-in anti-reflection coated Barlow lens\u003c\/li\u003e\n\u003cli\u003eMatte-white 45° screen, visible outside the focuser\u003c\/li\u003e\n\u003cli\u003eNylon screws hold the laser without marring\u003c\/li\u003e\n\u003cli\u003eUse with a laser in single-beam mode, aperture stop removed\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\u003eHowie Glatter TuBLUG-1.25\" Newtonian Collimator\u003c\/h2\u003e\n\u003cp\u003eThe TuBLUG (Tube + \u003ca href=\"\/en-int\/collections\/barlows-and-extenders\"\u003eBarlow\u003c\/a\u003e + Plug) is Howie Glatter's Barlowed laser collimation accessory for adjusting the primary mirror of a \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonian\u003c\/a\u003e, made by Starlight Instruments. This version is for 1.25\" \u003ca href=\"\/en-int\/collections\/collimation-tools\"\u003elaser collimators\u003c\/a\u003e. It is used with a regular laser collimator in single-beam mode on closed tube \u003ca href=\"\/en-int\/collections\/reflectors\"\u003ereflectors\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\u003eHow Barlowed collimation works\u003c\/h3\u003e\n\u003cp\u003eThe TuBLUG goes in the \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e and the laser collimator inserts into the other side of it. Its built-in anti-reflection coated Barlow lens, mounted in a central axial hole, diverges the beam, so the beam reaching the primary is large and defocused and easily covers the primary's center marker.\u003c\/p\u003e\n\u003cp\u003eAfter reflection from the primary, the shadow of the center marker returns to the TuBLUG's white screen. You adjust the primary until the shadow is centered on the screen's central hole. If the center marker is of a certain size, a small red ring of light appears outside the central hole and inside the marker's shadow; making that ring even in thickness helps the adjustment.\u003c\/p\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 screen\u003c\/h3\u003e\n\u003cp\u003eThe TuBLUG has a matte-white 45° face. It is easily visible from the primary adjustment position, and the TuBLUG can be turned 180° to face the front; it has a cut-out. The screen sits outside the focuser, so it can be seen when collimating the primary from below, and the shadow is more easily seen in twilight or darkness than on a sunny afternoon.\u003c\/p\u003e\n\u003cp\u003eIf you cannot see the screen from below the primary, use a simple 5-6x close-focusing \u003ca href=\"\/en-int\/collections\/monoculars\"\u003emonocular\u003c\/a\u003e; on smaller scopes you can sit between the bottom of the scope and the focuser and lean one way to turn a knob and the other to see the screen.\u003c\/p\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\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInsert the TuBLUG in the focuser and tighten the focuser binder against it. Aim the window toward the primary mirror if you will watch the screen from below the primary.\u003c\/li\u003e\n\u003cli\u003eRemove the aperture stop from the laser if it has one (you want a large beam) and insert the laser fully into the TuBLUG; nylon screws hold it without marring.\u003c\/li\u003e\n\u003cli\u003eAdjust the primary until the shadow of the center marker is centered on the central hole.\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\u003eTuBLUG-1.25\" or TuBLUG-2\"\u003c\/h3\u003e\n\u003cp\u003eHowie makes the TuBLUG for 1.25\" and 2\" lasers. Choose this 1.25\" version for a 1.25\" laser collimator.\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 purpose of the Howie Glatter TuBLUG-1.25\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt is used for Barlowed laser alignment of a Newtonian's primary mirror: the shadow of the primary's center marker is returned to the TuBLUG's white screen and you center it on the central hole.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need to buy a separate Barlow lens to use the TuBLUG-1.25\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The TuBLUG-1.25\" has a built-in anti-reflection coated Barlow lens. You only need to provide your own standard 1.25\" single-beam laser collimator to use it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the TuBLUG-1.25\" with my 8\" f\/5 Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAfter aligning the secondary, insert the TuBLUG in the focuser and tighten the binder, remove the laser's aperture stop and insert the laser fully, then adjust the primary until the center marker's shadow is centered on the central hole. On smaller scopes, sit between the bottom of the scope and the focuser, leaning one way to turn a knob and the other to see the screen.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the TuBLUG-1.25\" damage the barrel of my expensive laser collimator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The Howie Glatter TuBLUG-1.25\" is designed with non-marring nylon retention screws. They hold the laser firmly without marring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat if I can't see the shadow on the TuBLUG-1.25\" screen from the back of my long telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIf your telescope is too long to see the screen clearly while making adjustments, Howie Glatter's instructions suggest using a simple 5-6x close-focusing monocular to get a clear, magnified view of the screen from a distance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use my laser's holographic or crosshair pattern with the TuBLUG-1.25\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The TuBLUG-1.25\" is designed to be used with a laser collimator in single-beam mode. Remove any holographic attachment. You also need to remove any aperture stop from the laser to create a broad, defocused beam that fully illuminates the primary mirror's center marker.\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\u003eBarlowed laser collimation accessory (Tube + Barlow + Plug) for Newtonians\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFor\u003c\/td\u003e\n\u003ctd\u003e1.25\" laser collimators\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits\u003c\/td\u003e\n\u003ctd\u003eFocuser (tightened by the focuser binder)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScreen\u003c\/td\u003e\n\u003ctd\u003eLarge white screen visible outside the focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens\u003c\/td\u003e\n\u003ctd\u003eBuilt-in anti-reflection coated Barlow lens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLaser Retention\u003c\/td\u003e\n\u003ctd\u003eNylon screws (non-marring)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTuBLUG 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\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eHowie Glatter Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Howie Glatter","offers":[{"title":"Default Title","offer_id":44967298826525,"sku":"SI-TUBLUG1.25","price":224.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-TuBLUG-1-25-inch-Newtonian-Collimator-SI-TUBLUG1.25-1__59530.1596314052.1280.1280.jpg?v=1684339913"},{"product_id":"howie-glatter-holographic-attachment-w-square-grid-pattern","title":"Howie Glatter Holographic Attachment w\/ Square Grid Pattern","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eProjects a 10 x 10 line square grid pattern\u003c\/li\u003e\n\u003cli\u003eWide 21° spread covers optics from f\/2.7 to f\/35\u003c\/li\u003e\n\u003cli\u003eRemovable diffractive optical element (hologram)\u003c\/li\u003e\n\u003cli\u003eFits Howie Glatter laser collimators with the current 3\/8-32 thread\u003c\/li\u003e\n\u003cli\u003eIdeal for general use, especially with fast telescopes\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\u003eHowie Glatter Holographic Attachment w\/ Square Grid Pattern\u003c\/h2\u003e\n\u003cp\u003eThis Howie Glatter Holographic Attachment transforms a single-beam \u003ca href=\"\/en-int\/collections\/collimation-tools\"\u003elaser collimator\u003c\/a\u003e into a powerful optical centering tool, projecting a precise 10 x 10 line square grid composed of 81 smaller squares. Its expansive 21° spread is designed for the most demanding optical systems, allowing for direct, intuitive centering of optics in telescopes as fast as f\/2.7 all the way to f\/35. This attachment screws into the laser aperture of Howie Glatter laser collimators with the current 3\/8-32 thread.\u003c\/p\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 10x10 Grid: High-Sensitivity Centering for f\/2.7 to f\/35 Optics\u003c\/h3\u003e\n\u003cp\u003eThe square grid pattern is engineered for superior sensitivity when centering circular optics like primary and secondary mirrors. When a mirror or lens is even slightly decentered against the projected 10x10 grid, the asymmetry in how the grid lines intersect the optic's edge becomes disproportionately large and immediately obvious. This effect makes it easier to achieve precise alignment compared to simple cross-hair patterns.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eMatched-Set Precision and 3\/8-32 Thread Compatibility\u003c\/h3\u003e\n\u003cp\u003eHowie fits each diffractor individually to its collimator for maximum alignment accuracy. If diffractors are switched between collimators, the 15 arc-second accuracy in holographic mode is likely to be lost, although it still falls within the several arc-minute tolerance of most other laser collimators. The attachment easily unscrews from the laser's aperture, allowing you to revert to a single beam for tasks like primary mirror alignment without losing the holographic pattern's alignment when it is screwed back on.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Specification:\u003c\/strong\u003e Designed exclusively for current-generation Howie Glatter collimators using the 3\/8-32 thread, which is identified by a visible ring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemovable Design:\u003c\/strong\u003e Switch between holographic and single-beam modes in seconds. Note that the 1mm aperture stop cannot be used simultaneously with the holographic attachment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlignment Trade-off:\u003c\/strong\u003e While the attachment is interchangeable, swapping it between different collimators may degrade the holographic mode's alignment from its factory-calibrated state.\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\u003eSquare Grid vs. Other Patterns: Choosing the Right Hologram\u003c\/h3\u003e\n\u003cp\u003eHowie Glatter attachments are available in several patterns, each optimized for different tasks. The Square Grid is the recommended general-purpose option, offering the widest compatibility and highest sensitivity for centering.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Grid (This Model):\u003c\/strong\u003e With its 21° spread, it allows direct centering of f\/2.7 to f\/35 optics, the widest coverage of the Howie Glatter patterns. Its geometric properties provide enhanced visual feedback for centering circular mirrors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConcentric Circle Pattern:\u003c\/strong\u003e This pattern has a narrower 10° spread, making it suitable for f\/5.7 and slower telescopes. The laser light is more concentrated, resulting in a brighter pattern that is particularly useful for collimating Cassegrain telescopes where the pattern is viewed on the mirror surface itself.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-Hair Pattern:\u003c\/strong\u003e This is a more specialized pattern, primarily used for precisely aligning the returning laser beam on the face of the collimator during primary mirror adjustment.\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 Howie Glatter Square Grid attachment improve collimation over a single laser beam?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA single laser beam is excellent for aligning the tilt of mirrors (angular alignment) but is difficult to use for centering them physically (translational alignment). The Howie Glatter Holographic Attachment projects a 10 x 10 grid pattern that covers the entire surface of an optic, allowing you to visually confirm that the mirror or lens is perfectly centered in the optical path.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Square Grid attachment suitable for my fast f\/3 Newtonian telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. The Square Grid pattern is the recommended choice for fast telescopes. Its wide 21° spread ensures the projected grid will cover the primary mirror of systems down to f\/2.7, making it ideal for the precise collimation required by fast \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonians\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this 3\/8-32 thread attachment fit my older Howie Glatter laser collimator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis attachment is designed for current-production Howie Glatter collimators, which use a 3\/8-32 thread and are identified by a visible ring. Older models used a finer thread and are not compatible with this attachment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Howie Glatter holographic attachment and the 1mm aperture stop at the same time?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The 1 mm aperture stop is not used at the same time as the holographic feature: unscrew the diffractor first, then install the stop in the laser aperture. Screwing the diffractor back on returns the collimator to holographic mode with its alignment kept.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat happens if I use this Square Grid attachment on a friend's Howie Glatter collimator?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe attachment will function, but you may lose some precision. Howie Glatter attachments are individually fitted to their collimators at the factory to ensure maximum alignment accuracy. Swapping them between units can degrade this alignment, though it will likely remain within the tolerance of most other laser collimators on the market.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the Square Grid attachment to collimate my Schmidt-Cassegrain telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWith the collimator in the telescope back (no \u003ca href=\"\/en-int\/collections\/diagonals\"\u003ediagonal\u003c\/a\u003e), check that the pattern is centered on the secondary, which checks the back-axis alignment. A holographic pattern is needed for primary and corrector alignment. The pattern can be hard to see on very clean optics; lowering ambient light helps, and the brighter concentric circle pattern suits Cassegrains. On commercial \u003ca href=\"\/en-int\/collections\/schmidt-cassegrain-telescopes\"\u003eSCTs\u003c\/a\u003e only the secondary tilt is adjustable.\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\u003ePattern\u003c\/td\u003e\n\u003ctd\u003e10 x 10 line square grid (81 small squares)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpread\u003c\/td\u003e\n\u003ctd\u003e21°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptics Covered\u003c\/td\u003e\n\u003ctd\u003ef\/2.7 to f\/35\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended For\u003c\/td\u003e\n\u003ctd\u003eGeneral use, including the fastest telescopes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eRemovable diffractive optical element (hologram)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits\u003c\/td\u003e\n\u003ctd\u003eHowie Glatter laser collimators, current 3\/8-32 thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSquare grid holographic attachment\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\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eHowie Glatter Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Howie Glatter","offers":[{"title":"Default Title","offer_id":44967298859293,"sku":"SI-HOLA-Square","price":112.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-Holographic-Attachment-Square-Grid-Pattern-for-Holographic-Collimator-SI-HOLA-Square-1__48167.1596314053.1280.1280.jpg?v=1684339918"},{"product_id":"baader-adjustable-spanner-wrench-w-2mm-pins","title":"Baader Adjustable Spanner Wrench w\/ 2mm Pins","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdjustable pin spacing for slotted retaining rings\u003c\/li\u003e\n\u003cli\u003ePrecision-machined 2mm pins for secure engagement\u003c\/li\u003e\n\u003cli\u003ePrevents scratches and damage to optics and housings during service\u003c\/li\u003e\n\u003cli\u003eSafely remove and reinstall optical elements for cleaning\u003c\/li\u003e\n\u003cli\u003eRemoves the M48 \/ T-2 insert ring of the Baader Protective Canon T-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\u003eBaader Adjustable Spanner Wrench w\/ 2mm Pins\u003c\/h2\u003e\n\u003cp\u003eThe Baader Adjustable Spanner Wrench with 2mm Pins is the professional tool for safely disassembling and servicing your astronomical accessories. Baader offers it to unmount the M48 \/ T-2 insert ring from the Baader Protective Canon \u003ca href=\"\/en-int\/collections\/imaging-adapters\"\u003eT-Ring\u003c\/a\u003e, and like any adjustable pin face wrench it prevents the costly slips and scratches that often result from using improper tools like screwdrivers or pliers. It provides the controlled, positive grip needed to protect your investment while performing essential maintenance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBaader Spanner Wrench: The Right Tool for Servicing Optics\u003c\/h3\u003e\n\u003cp\u003eMany high-end optical accessories use threaded retaining rings to hold lenses or mirrors in place. When dust or fungus gets inside, disassembly is the only way to clean it. Using a generic tool risks gouging the ring's blackening, scratching the housing, or worse, slipping and permanently damaging a coated optical surface. The Baader Spanner Wrench is purpose-built to avoid this, turning a risky job into a routine one.\u003c\/p\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 Jaws and 2mm Pins for Universal Compatibility\u003c\/h3\u003e\n\u003cp\u003eRetaining rings do not come in a standard size, which is why an adjustable wrench is essential. The Baader Spanner Wrench's pin spacing is adjustable to suit rings of different diameters. The 2mm pins are machined to fit snugly into the retaining ring slots, ensuring a no-slip grip that allows you to apply firm, even torque for removal and reinstallation.\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 Baader Spanner Wrench used for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBaader supplies it as an optional tool for unmounting the M48 \/ T-2 insert ring from the Baader Protective Canon T-Ring. As an adjustable 2mm pin face wrench, it can also turn other slotted retaining rings whose slots accept 2mm pins.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the 2mm pins on the Baader Spanner Wrench fit all retaining rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The pins are 2mm in diameter, so they fit only rings whose slots or holes accept 2mm pins. Check your ring before use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is the Baader Spanner Wrench better than using needle-nose pliers?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNeedle-nose pliers have tapered tips that can easily slip out of a retaining ring's slot, causing them to scrape across the metal housing or the glass lens itself. The Baader wrench uses cylindrical \u003cstrong\u003e2mm pins\u003c\/strong\u003e that provide a secure, positive engagement, preventing slips and allowing for smooth, controlled pressure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the Baader Adjustable Spanner Wrench?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo use the wrench, you adjust the pin spacing until the two pins line up perfectly with the slots on the retaining ring. Ensure the pins are fully seated in the slots, then apply slow, steady rotational pressure to loosen or tighten the ring.\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\u003eAdjustable Spanner Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePin Diameter\u003c\/td\u003e\n\u003ctd\u003e2mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.04\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\"\u003eBaader Adjustable Spanner Wrench w\/ 2mm Pins\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\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967308362013,"sku":"BAA-2450062","price":25.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Adjustable-Spanner-Wrench-with-2mm-Pins-1__29573.1597110603.1280.1280.jpg?v=1684340174"},{"product_id":"baader-astro-box-1-m31","title":"Baader Astro-Box #1 (M31)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eProtects valuable astronomy accessories\u003c\/li\u003e\n\u003cli\u003eIdeal for eyepieces, filters, and adapters\u003c\/li\u003e\n\u003cli\u003eDurable construction for field use\u003c\/li\u003e\n\u003cli\u003eKeeps gear organized and accessible\u003c\/li\u003e\n\u003cli\u003eM31 Andromeda Galaxy themed designation\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\u003eBaader Astro-Box #1 (M31)\u003c\/h2\u003e\n\u003cp\u003eThe Baader Astro-Box #1 (M31) is a dedicated storage solution engineered to protect your most critical astronomy accessories from the hazards of transport and storage. Designed for the active observer, this foam-fitted metal container (16.5 x 14.5 x 11 cm, with window) provides a secure, organized place for \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepieces\u003c\/a\u003e, filters and other small components. It replaces makeshift bags and generic hardware store containers with a purpose-built system for your valuable optical gear.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eOrganized Protection for Critical Astronomy Gear\u003c\/h3\u003e\n\u003cp\u003eYour optical accessories are as important as your telescope. The Astro-Box #1 (M31) provides a structured way to keep them safe and ready for immediate use. Proper storage prevents minor scratches that degrade contrast and protects delicate filter coatings, preserving the optical integrity and value of your investment for years to come.\u003c\/p\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-Ready Design for Dark Sky Sites\u003c\/h3\u003e\n\u003cp\u003eTransporting gear to a dark sky site introduces risk. The Baader Astro-Box is built to withstand the bumps and jostles of travel. Its robust construction ensures that when you arrive at your observing location, your accessories are in the same pristine condition as when you left, allowing you to set up with confidence and spend your time observing, not troubleshooting damaged equipment.\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 Baader Astro-Box #1 (M31) primarily used for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Baader Astro-Box #1 (M31) is designed to store and transport sensitive astronomical accessories. It is a foam-fitted metal container (16.5 x 14.5 x 11 cm) for a small set of accessories such as eyepieces, filters and adapters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Baader Astro-Box protect accessories like 1.25\" eyepieces or filters?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA dedicated case like the Astro-Box provides a secure and clean environment. It prevents items from shifting and colliding during transport, which can cause scratches on lenses or damage to filter threads. Its foam fitting holds items in place rather than leaving them loose.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Baader Astro-Box #1 (M31) suitable for transport to a dark sky site?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is designed for exactly this purpose. Its durable exterior is meant to handle the rigors of being packed in a car with other heavy equipment. Using a dedicated case ensures your smaller, more fragile items arrive safely at your remote observing location.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I customize the interior of the Baader Astro-Box #1 (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Astro-Box #1 is a foam-fitted metal container; the foam type and whether it can be cut to shape are not specified.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is a case like the Baader Astro-Box better than a generic hardware container?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Baader Astro-Box is designed with the specific needs of astronomers in mind. The materials and interior are chosen to be safe for delicate optical coatings and to minimize outgassing, which can leave a film on lenses over time. It offers a level of protection and organization tailored to astronomical equipment that a generic box cannot match.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the \"(M31)\" in the Baader Astro-Box #1 name signify?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \"(M31)\" is a thematic designation referring to Messier 31, the Andromeda Galaxy. It connects this practical piece of equipment to the celestial objects astronomers love to observe, adding a touch of character to your gear collection.\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\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e300 g\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\"\u003eBaader Astro-Box #1 (M31)\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\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967314915613,"sku":"BAA-2957005","price":18.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Astro-Box-no1-M31-1__99367.1597110669.1280.1280.jpg?v=1684340448"},{"product_id":"baader-rubber-eyeshield-for-diam-33-5-34mm","title":"Baader Rubber Eyeshield for Diam 33.5-34mm","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits Eyepieces with 33.5mm to 34mm Diameter\u003c\/li\u003e\n\u003cli\u003eBlocks Stray Light to Improve Contrast\u003c\/li\u003e\n\u003cli\u003eImproves Viewing Comfort and Eye Placement\u003c\/li\u003e\n\u003cli\u003eMade from Flexible, Durable Rubber\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\u003eBaader Rubber Eyeshield for Diam 33.5-34mm\u003c\/h2\u003e\n      \u003cp\u003eThe Baader Rubber Eyeshield is a winged rubber eyecup with a folding side wing for \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepieces\u003c\/a\u003e with an outer body diameter from 33.5mm to 34mm. It improves contrast by blocking stray ambient light from reaching the eyepiece lens and your eye.\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\u003eBlock Stray Light with a 33.5mm to 34mm Fit\u003c\/h3\u003e\n      \u003cp\u003eEven minor light sources, like a neighbor's porch light or a red laptop screen, can degrade your view by creating internal reflections and reducing image contrast. This winged rubber eyeshield fits eyepieces between 33.5mm and 34mm in diameter, its folding side wing shielding your eye and the eyepiece lens from these distracting light sources. The result is a darker background sky, allowing you to perceive fainter stars and more subtle details in nebulae and galaxies.\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\u003eMaintain Stable Eye Placement for Comfortable Observing\u003c\/h3\u003e\n      \u003cp\u003eLong nights at the telescope require sustained focus, and maintaining the perfect eye position over the eyepiece can be fatiguing. This eyeshield provides a comfortable resting point for your eye socket, helping you consistently maintain the correct distance from the lens. This stability minimizes \"blackouts\" or \"kidney-beaning\" effects and reduces eye strain, making extended observations of planets or double stars a more comfortable experience.\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 benefit of using the Baader Rubber Eyeshield for 33.5-34mm eyepieces?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIts primary benefit is \u003cstrong\u003eblocking stray ambient light\u003c\/strong\u003e from entering the space between your eye and the eyepiece lens. This improves image contrast, making it easier to see faint details on planets and deep-sky objects.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I know if this Baader eyeshield will fit my eyepiece?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYou need to measure the outer diameter of the top of your eyepiece body, where your eye would normally be placed. If that diameter is between \u003cstrong\u003e33.5mm and 34mm\u003c\/strong\u003e, this eyeshield is designed to fit securely.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Baader eyeshield help with observing faint objects like the Veil Nebula (NGC 6960)?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, absolutely. For low-contrast objects like the Veil Nebula, eliminating stray light is critical. This eyeshield prevents light pollution or stray light from a laptop screen from washing out the faint nebulosity, resulting in a \u003cstrong\u003edarker sky background\u003c\/strong\u003e and a more visible object.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this eyeshield improve comfort when observing Jupiter for a long time?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eWhen observing a bright object like Jupiter for extended periods, your eye can become fatigued from squinting and trying to hold the perfect position. The Baader Rubber Eyeshield provides a \u003cstrong\u003ephysical resting place\u003c\/strong\u003e for your eye socket, helping you maintain the correct eye alignment and distance from the lens, which reduces strain and prevents blackouts.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Baader Rubber Eyeshield difficult to install on a 33.5-34mm eyepiece?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo. Fit the eyecup over the top of an eyepiece body of 33.5mm to 34mm diameter until it seats securely.\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\u003eEyepieces with 33.5mm to 34mm outer diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eRubber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eEyecup\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\"\u003eBaader Rubber Eyeshield for Diam 33.5-34mm\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\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967316652317,"sku":"BAA-2402020","price":19.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Rubber-Eyeshield-for-Diam-33-5-34mm-1__03548.1597110682.1280.1280.jpg?v=1684340496"},{"product_id":"baader-hyperion-morpheus-eyepiece-case","title":"Baader Hyperion\/Morpheus Eyepiece Case","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eHolds up to 8 Baader Hyperion Eyepieces\u003c\/li\u003e\n\u003cli\u003eAlso compatible with Baader Morpheus Eyepieces\u003c\/li\u003e\n\u003cli\u003ePre-cut foam for a secure, custom fit\u003c\/li\u003e\n\u003cli\u003eDurable construction for transport and storage\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\u003eBaader Hyperion\/Morpheus Eyepiece Case\u003c\/h2\u003e\n\u003cp\u003eThe Baader Hyperion\/Morpheus Eyepiece Case provides custom-cut foam inserts to securely hold and protect up to 8 eyepieces from Baader's acclaimed Hyperion or Morpheus series.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCustom-Fit Protection for 8 Hyperion or Morpheus Eyepieces\u003c\/h3\u003e\n\u003cp\u003eDesigned specifically for Baader's celebrated eyepiece lines, this case accommodates a full set of 8 Hyperion eyepieces or a mixed collection including the similarly-sized Morpheus series. The pre-cut foam prevents movement during transport, protecting your investment from shocks and scratches far more effectively than generic pick-and-pluck cases.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDedicated Fit:\u003c\/strong\u003e Eliminates the guesswork and mess of cutting foam, providing a snug, secure fit for up to 8 eyepieces right out of the box.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Storage:\u003c\/strong\u003e While designed around the complete Hyperion eyepiece set, the cutouts are also perfectly sized for Baader's Morpheus eyepieces, allowing you to create a mixed set.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrab-and-Go Convenience:\u003c\/strong\u003e Keep your entire primary eyepiece collection organized, dust-free, and ready for your next observing session in a single, durable container.\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 eyepieces fit in the Baader Hyperion\/Morpheus Eyepiece Case?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis case is specifically designed to hold up to \u003cstrong\u003e8 Baader Hyperion eyepieces\u003c\/strong\u003e. The precision-cut foam inserts are also compatible with the \u003cstrong\u003eBaader Morpheus eyepiece\u003c\/strong\u003e series, allowing you to store a mix of both.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy choose the dedicated Baader case over a generic one?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage is the \u003cstrong\u003epre-cut, custom-fit foam\u003c\/strong\u003e. Unlike generic \"pick-and-pluck\" foam which can degrade over time and offer a loose fit, this case provides a secure, snug cradle for each eyepiece, minimizing movement and maximizing protection during transport.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have 5 Hyperions and 2 Morpheus eyepieces. Will they fit securely in this case?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. The case is designed for this kind of flexibility. Your mixed set of Hyperion and Morpheus eyepieces will fit securely in the 8 available slots, making it an ideal solution for observers who own eyepieces from both series.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Baader Hyperion\/Morpheus Eyepiece Case suitable for air travel?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile the case offers excellent protection for car travel to local dark sky sites and for home storage, its specific suitability for checked airline baggage would depend on its material and latch construction, for which specifications are not provided. For carry-on use, it provides a superb way to keep your valuable eyepieces organized and safe.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the foam in the Baader Hyperion\/Morpheus Eyepiece Case come pre-cut?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The foam insert comes with 8 precision-cut openings, perfectly sized for the Baader Hyperion and Morpheus eyepiece bodies. There is no need for manual cutting or plucking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this case a good choice for taking my eyepieces to a dark site to view the Orion Nebula (M42)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is an ideal use case. Having your entire set of up to 8 eyepieces in one organized case makes field setup much more efficient. You can quickly select the right Hyperion or Morpheus eyepiece to frame all of M42 or zoom in on the Trapezium cluster without fumbling with individual boxes in the dark.\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\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2500 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHolds\u003c\/td\u003e\n\u003ctd\u003eBaader Hyperion eyepieces (up to 8), Baader Morpheus eyepieces\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\"\u003eEyepiece case with pre-punched compartments (eyepieces not included)\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\/Baader_Planetarium_Hyperion_Eyepieces_Application_Examples.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\"\u003eBaader Planetarium Hyperion Eyepieces Application Examples\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\/Baader_Planetarium_Morpheus_Eyepieces_Information_and_Applications.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\"\u003eBaader Planetarium Morpheus Eyepieces Information and Applications\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\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967319634205,"sku":"BAA-2454601","price":117.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Hyperion-Morpheus-Eyepiece-Case-1__18298.1597110716.1280.1280.jpg?v=1684340596"},{"product_id":"baader-metal-dustcap-m68x1f","title":"Baader Metal Dustcap - M68x1(F)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDurable Metal Construction\u003c\/li\u003e\n\u003cli\u003eM68x1 Female (Internal) Thread\u003c\/li\u003e\n\u003cli\u003eSecure, Thread-On Fit\u003c\/li\u003e\n\u003cli\u003eProtects Optics and Threads from Dust\u003c\/li\u003e\n\u003cli\u003eNative Component of the Baader M68 System\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\u003eBaader Metal Dustcap - M68x1(F)\u003c\/h2\u003e\n\u003cp\u003eProtect any male M68x1 thread with the Baader Metal Dustcap. This M68 cap is machined from metal for superior durability over standard plastic caps, ensuring your optical train remains free from dust and moisture when stored or transported.\u003c\/p\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 Protection for M68x1 Threads and Optics\u003c\/h3\u003e\n\u003cp\u003eUnlike simple plastic caps that can crack or fall off, this metal dustcap threads directly onto your M68 components for a secure fit. This prevents accidental ingress of dust, dew, or other contaminants. Its metal construction also provides an extra layer of defense against minor bumps and impacts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSeamless Integration with the Baader M68 System\u003c\/h3\u003e\n\u003cp\u003eDesigned as a native component of the Baader M68 optical system, this cap is essential for protecting the threads on M68 \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocusers\u003c\/a\u003e, telecompressors, and adapters. It maintains the integrity of the precise M68x1 threading, ensuring clean and easy connections when you reassemble 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 Baader M68x1 Metal Dustcap used for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Baader M68x1 Metal Dustcap protects male M68x1 threads and the interior of optical components from dust, moisture, and physical damage. It is ideal for capping focusers, correctors, or any part of the Baader M68 system when not in use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy should I choose this metal Baader M68x1 dustcap over a plastic one?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003emetal construction\u003c\/strong\u003e provides superior durability and a more secure, threaded fit. Unlike push-in plastic caps that can loosen or crack, this cap screws on, ensuring it won't fall off during transport and offers better protection against impacts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Baader M68x1 dustcap fit my telescope's visual back?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt will only fit if your \u003ca href=\"\/en-int\/collections\/visual-adapters\"\u003evisual back\u003c\/a\u003e, focuser, or adapter terminates in a male \u003cstrong\u003eM68x1 thread\u003c\/strong\u003e. It is not compatible with standard 2\" visual backs or SCT threads unless an appropriate M68 adapter is used.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a Baader M68 telecompressor. Is this the right cap for the telescope side?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this cap is perfect for protecting the male M68x1 threads on the telescope side of Baader M68 telecompressors, correctors, and other accessories. It keeps the critical threads clean and undamaged for a reliable connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Baader M68x1 Metal Dustcap have male or female threads?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis dustcap has \u003cstrong\u003efemale M68x1 threads\u003c\/strong\u003e (also called inner threads). It is designed to screw onto a component that has male (outer) M68x1 threads.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm building an imaging train with a Baader M68 focuser. Should I get this cap?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. When you break down your imaging train, this cap will protect the exposed M68 threads on your focuser drawtube. This prevents dust from entering the focuser mechanism and protects the threads from being cross-threaded or damaged.\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\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.03\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium, Zeiss\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e74.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eM68 x 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapters Family\u003c\/td\u003e\n\u003ctd\u003eM68 System\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\"\u003eBaader Metal Dustcap - M68x1(F)\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\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty Policy\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967328481565,"sku":"BAA-2458248","price":66.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Metal-Dustcap-M68x1-F-1__73667.1597110810.1280.1280.jpg?v=1684341019"},{"product_id":"baader-metal-dustcap-m68x1m","title":"Baader Metal Dustcap - M68x1(M)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eThreads into any female M68x1 port\u003c\/li\u003e\n\u003cli\u003eDurable all-metal construction\u003c\/li\u003e\n\u003cli\u003eProtects threads and optics from dust and damage\u003c\/li\u003e\n\u003cli\u003eKnurled edge for a secure grip\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\u003eBaader Metal Dustcap - M68x1(M)\u003c\/h2\u003e\n      \u003cp\u003eThe Baader M68x1 Metal Dustcap provides robust, secure protection for any female M68x1 thread in your optical train, safeguarding valuable correctors, reducers, and \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocusers\u003c\/a\u003e from dust, moisture, and impact damage.\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\u003eA Durable M68x1 Metal Seal for M68 System Components\u003c\/h3\u003e\n      \u003cp\u003eUnlike standard plastic plugs that can crack or deform, this cap is machined from metal for long-term durability. It ensures a secure fit that won't accidentally pop out, providing peace of mind that your M68-threaded components are sealed and their delicate threads are protected from being stripped or cross-threaded.\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 Baader M68x1 Metal Dustcap used for?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis dustcap is designed to screw into and seal any female M68x1 thread. It is commonly used to protect the threads and internal optics of high-end accessories like the Baader M68 telecompressors, correctors, extension tubes, and focusers when they are not in use.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhy should I choose this Baader metal dustcap over a standard plastic one?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eA \u003cstrong\u003emetal cap\u003c\/strong\u003e offers superior protection and longevity. It is far more resistant to cracking from impacts or temperature changes, and it provides a more secure, positive-threaded seal compared to a push-fit plastic plug. This prevents accidental removal and ensures a better barrier against fine dust particles.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhich Baader accessories use an M68x1 female thread that this cap would protect?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis Baader M68x1 cap is ideal for protecting components within the Baader M68 system, such as the female M68 threads of M68 extension tubes and adapters in the Baader \/ Zeiss M68 system. It keeps the entire optical path sealed when disassembled.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Baader M68x1 dustcap fit accessories from other brands?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, as long as the accessory uses a standard female M68x1 thread, this Baader dustcap will be compatible. The M68x1 thread is used by several manufacturers for full-frame correctors and large-format focusers, making this a widely applicable protective component.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Baader M68x1 Metal Dustcap prevent dust and moisture?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eBy threading securely into the port, the Baader M68x1 cap creates a tight physical barrier. This seal is much more effective than a simple push-in cap, significantly reducing the ingress of airborne dust, pollen, and moisture that can settle on sensitive optical surfaces or clog fine threads.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this Baader M68x1 cap on my telescope's visual back?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYou can use this cap if your telescope's \u003ca href=\"\/en-int\/collections\/visual-adapters\"\u003evisual back\u003c\/a\u003e terminates in a female M68x1 thread. This is common on larger \u003ca href=\"\/en-int\/collections\/refractors\"\u003erefractors\u003c\/a\u003e and some \u003ca href=\"\/en-int\/collections\/ritchey-chretien-and-dall-kirkham\"\u003eRitchey-Chrétien\u003c\/a\u003e telescopes that use M68 as their primary connection standard before reducing down to 2-inch or other formats.\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\u003eThread Type\u003c\/td\u003e\n\u003ctd\u003eM68x1 Male (Outer Thread)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eMetal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.03\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium, Zeiss\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e74.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eDust cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapters Family\u003c\/td\u003e\n\u003ctd\u003eM68 System\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\"\u003eBaader M68x1 Metal Dustcap\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\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967328776477,"sku":"BAA-2458249","price":67.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Metal-Dustcap-M68x1-M-1__40975.1597110810.1280.1280.jpg?v=1684341022"},{"product_id":"baader-t-2-dustcap-m42x0-75f","title":"Baader T-2 Dustcap - M42x0.75(F)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFemale M42x0.75 T-2 Thread\u003c\/li\u003e\n\u003cli\u003eProtects Male Threads from Dust and Debris\u003c\/li\u003e\n\u003cli\u003eSecures the Optical Path During Storage\u003c\/li\u003e\n\u003cli\u003eCompatible with All Standard Male T-Threads\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\u003eBaader T-2 Dustcap - M42x0.75(F)\u003c\/h2\u003e\n      \u003cp\u003eThe Baader T-2 Dustcap provides a simple but critical function: it seals any exposed male M42x0.75 T-thread in your imaging train from dust, moisture, and accidental damage. This female-threaded cap ensures that when your camera, \u003ca href=\"\/en-int\/collections\/filter-wheels\"\u003efilter wheel\u003c\/a\u003e, or \u003ca href=\"\/en-int\/collections\/autoguiding\"\u003eoff-axis guider\u003c\/a\u003e is not connected, the sensitive internal components remain pristine and ready for your next imaging session.\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\u003eEssential Protection for Your M42x0.75 Imaging Train\u003c\/h3\u003e\n      \u003cp\u003eEvery exposed male thread is an entry point for dust, which inevitably ends up as frustrating \"dust donuts\" on your sensor that must be removed with flat frames. The Baader T-2 Dustcap with female M42x0.75 threads offers a secure, threaded seal that is far more effective than a simple push-in plug. It's a fundamental piece of kit for maintaining a clean optical path, from the telescope \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e to the camera sensor.\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 Baader T-2 Dustcap M42x0.75(F) primarily used for?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis dust cap is designed to screw onto any exposed \u003cstrong\u003emale M42x0.75 T-thread\u003c\/strong\u003e. It protects the interior of your equipment—like cameras, filter wheels, off-axis guiders, and adapters—from dust and physical damage when not in use.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Baader T-2 Dustcap fit the male threads on my telescope's SCT visual back?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo. Standard SCT \u003ca href=\"\/en-int\/collections\/visual-adapters\"\u003evisual backs\u003c\/a\u003e use a larger 2\"-24 TPI thread, not the M42x0.75 T-thread. This cap is specifically for the smaller \u003cstrong\u003eT-thread \/ T-2 standard\u003c\/strong\u003e common on \u003ca href=\"\/en-int\/collections\/cameras\"\u003eastronomy cameras\u003c\/a\u003e and accessories, not the larger SCT thread.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs this a male or female threaded Baader T-2 Dustcap?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis is a \u003cstrong\u003efemale (F) dustcap\u003c\/strong\u003e, as indicated by the (F) in the title. It has internal M42x0.75 threads and is designed to screw onto an accessory with external male threads.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is capping exposed T-threads important for astrophotography?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAn uncapped thread allows dust to settle on filters or camera sensors. This debris appears as dark, out-of-focus circles (\"dust donuts\") in your final images, which can be difficult to remove in post-processing. Using a cap like the Baader T-2 Dustcap is the simplest way to prevent this contamination.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Baader T-2 Dustcap on the front of a T-adapter nosepiece?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIt depends on the nosepiece. Many 1.25\" or 2\" \u003ca href=\"\/en-int\/collections\/imaging-adapters\"\u003eT-adapter\u003c\/a\u003e nosepieces have male M42x0.75 threads on the camera side but female threads on the telescope side for filters. This cap fits the \u003cstrong\u003emale camera-side threads\u003c\/strong\u003e, not the female filter threads.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow securely does the Baader T-2 Dustcap fit?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe cap provides a snug, threaded fit that securely fastens to any standard male T-thread. This prevents it from falling off accidentally and provides excellent protection against airborne dust and particulates. It is not designed to be a hermetic or waterproof seal but is highly effective for storage and transport.\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\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eAstro T-2, Baader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e49\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eM42 x 0.75 (T-2)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapters Family\u003c\/td\u003e\n\u003ctd\u003eT-2 System\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\"\u003eBaader T-2 Dustcap - M42x0.75(F)\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\/Baader_Planetarium_Astro_T-2_System_Connections_Overview.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\"\u003eBaader Planetarium Astro T-2 System Connections Overview\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\/Baader_Planetarium_Astro_T-2_System_Parts_List.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\"\u003eBaader Planetarium Astro T-2 System Parts List\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\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967354958109,"sku":"BAA-2904010","price":10.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-T-2-Dustcap-M42x0-75-F-1__82344.1597110896.1280.1280.jpg?v=1684341286"},{"product_id":"baader-t-2-dustcap-m42x0-75m","title":"Baader T-2 Dustcap - M42x0.75(M)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits female T-2 (M42x0.75) threads\u003c\/li\u003e\n\u003cli\u003eMale (outer) thread design\u003c\/li\u003e\n\u003cli\u003eProtects optics and sensors from dust\u003c\/li\u003e\n\u003cli\u003ePrevents damage to delicate threads\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\u003eBaader T-2 Dustcap - M42x0.75(M)\u003c\/h2\u003e\n\u003cp\u003eThe Baader T-2 Dustcap is an essential component for protecting any piece of astronomical equipment that features a female M42x0.75 T-thread. This cap threads securely into place, providing a robust seal against dust, moisture, and accidental contact that can damage sensitive optics or threads.\u003c\/p\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 Precision Cap for M42x0.75 Female Threads\u003c\/h3\u003e\n\u003cp\u003eUnlike simple push-in plugs that can fall out, this dust cap features a male M42x0.75 thread for a secure, positive fit. It's the correct way to seal the front of a camera nosepiece, the input of a \u003ca href=\"\/en-int\/collections\/filter-wheels\"\u003efilter wheel\u003c\/a\u003e, or any T-threaded accessory port when not in use.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Seal:\u003c\/strong\u003e Threaded connection ensures the cap stays in place during transport and storage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDamage Prevention:\u003c\/strong\u003e Protects the delicate leading edge of female T-threads from being dented or cross-threaded.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean Optics:\u003c\/strong\u003e Keeps dust particles from settling on camera sensors, filters, or corrector lenses inside your optical train.\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 is the Baader T-2 Dustcap used for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Baader T-2 Dustcap is designed to screw into and seal any female \u003cstrong\u003eT-2 (M42x0.75)\u003c\/strong\u003e threaded port. It is commonly used to protect the openings of \u003ca href=\"\/en-int\/collections\/imaging-adapters\"\u003eT-rings\u003c\/a\u003e, camera nosepieces, filter wheels, \u003ca href=\"\/en-int\/collections\/autoguiding\"\u003eoff-axis guiders\u003c\/a\u003e, and other accessories from dust, moisture, and physical damage when they are not connected in an optical train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Baader M42x0.75 dustcap fit my ZWO or QHY camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, if you are referring to the female M42x0.75 T-threads on the camera body or an attached T-ring. This cap is designed to fit the universal T-thread standard used by virtually all \u003ca href=\"\/en-int\/collections\/cameras\"\u003eastronomy camera\u003c\/a\u003e manufacturers, including ZWO, QHY, and Celestron.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this a male or female T-2 dustcap?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis is a \u003cstrong\u003emale dustcap\u003c\/strong\u003e, indicated by the \"(M)\" in the product title. It has external M42x0.75 threads designed to screw into a component with female (internal) threads.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need a Baader T-2 Dustcap instead of a simple plastic plug?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA simple plastic plug relies on friction and can easily be knocked out during transport, exposing your equipment. The Baader T-2 Dustcap \u003cstrong\u003ethreads securely\u003c\/strong\u003e into place, guaranteeing it will not fall off and providing a much better seal against environmental contaminants.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this M42x0.75 cap on the female port of my Baader FlipMirror II?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. The various ports on the Baader FlipMirror II \u003ca href=\"\/en-int\/collections\/diagonals\"\u003ediagonal\u003c\/a\u003e utilize the T-2 thread standard. This male dustcap is perfect for sealing any open female M42x0.75 port on the FlipMirror II or other Baader accessories when a camera or \u003ca href=\"\/en-int\/collections\/visual-adapters\"\u003eeyepiece holder\u003c\/a\u003e is not attached.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Baader T-2 Dustcap protect against moisture?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBy creating a secure, threaded seal, the cap significantly helps in preventing ambient moisture and dew from entering the sealed accessory. While not hermetically sealed or waterproof, it provides excellent protection during storage and transport in typical observing environments.\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\u003eThread\u003c\/td\u003e\n\u003ctd\u003eT-2 (M42x0.75 Male)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eDust and moisture protection for female T-threads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e49\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e5\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\"\u003eBaader T-2 Dustcap - M42x0.75(M)\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\/Baader_Planetarium_Astro_T-2_System_Connections_Overview.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\"\u003eBaader Planetarium Astro T-2 System Connections Overview\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\/Baader_Planetarium_Astro_T-2_System_Parts_List.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\"\u003eBaader Planetarium Astro T-2 System Parts List\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\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967355056413,"sku":"BAA-2904000","price":10.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-T-2-Dustcap-M42x0-75-M-1__42681.1597110897.1280.1280.jpg?v=1684341292"},{"product_id":"baader-molded-plastic-cap-for-t2-quick-changer","title":"Baader Molded Plastic Cap for T2 Quick Changer","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eProtects T2 Quick Changer from Dust and Moisture\u003c\/li\u003e\n\n\u003cli\u003eEnsures a Clean Optical Path\u003c\/li\u003e\n\u003cli\u003eDesigned for a Secure, Precise Fit\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\u003eBaader Molded Plastic Cap for T2 Quick Changer\u003c\/h2\u003e\n\u003cp\u003eThe Baader Molded Plastic Cap for the T2 Quick Changer is an essential accessory for maintaining the integrity of your optical train. It is the T-2 dustcap with Zeiss \u003ca href=\"\/en-int\/collections\/dovetail-plates\"\u003edovetail\u003c\/a\u003e that closes Baader's Zeiss-dovetail T-2 Quick Changers (#2456313, #2456313A) when no accessory is attached, preventing dust, pollen, and moisture from contaminating internal optics and sensors. This cap ensures your equipment remains clean and ready for your next 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\u003eDedicated Protection for the Baader T2 Quick Changer\u003c\/h3\u003e\n\u003cp\u003eThis isn't a generic dust plug; it's a purpose-built cap designed for a precise fit with the Baader T2 Quick Changer system. It fits the changer by its Zeiss dovetail. Its lightweight design makes it ideal for fieldwork, allowing you to quickly cap your telescope's \u003ca href=\"\/en-int\/collections\/visual-adapters\"\u003evisual back\u003c\/a\u003e or camera adapter when swapping equipment in the dark.\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 purpose of the Baader Molded Plastic Cap?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary purpose of the \u003cstrong\u003eBaader Molded Plastic Cap\u003c\/strong\u003e is to protect the open port of a T2 Quick Changer from environmental contaminants like dust, dew, and pollen. When you remove a camera or \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepiece\u003c\/a\u003e, this cap seals the optical path, keeping your telescope's interior and any downstream filters or sensors clean.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Baader cap fit other T2 accessories besides the Quick Changer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt fits Baader's Zeiss-dovetail quick changers. Baader also supplies it with the Mark V Giant \u003ca href=\"\/en-int\/collections\/binoculars\"\u003eBinocular\u003c\/a\u003e, the DADOS Slit \u003ca href=\"\/en-int\/collections\/spectrographs\"\u003eSpectrograph\u003c\/a\u003e and the 2\" \/ 1.7x Glasspath Corrector for Newtons.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Baader Molded Plastic Cap help when imaging from a dusty field?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen imaging from a location with airborne dust or pollen, swapping accessories can introduce contaminants onto your sensor or filters, resulting in \"dust donuts\" in your final image. The \u003cstrong\u003eBaader Molded Plastic Cap\u003c\/strong\u003e allows you to immediately seal the optical train after removing your camera, preventing contamination while you prepare your next accessory.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Baader Molded Plastic Cap when disassembling my mobile setup at a dark sky site?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is an ideal use case. After a long night of imaging, you can use the \u003cstrong\u003eBaader Molded Plastic Cap\u003c\/strong\u003e to seal your telescope's \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e or visual back before transport. This ensures that no dust or debris enters the optical tube on the drive home, keeping it clean for your next session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Baader Molded Plastic Cap included with the T2 Quick Changer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Baader supplies this cap with the T-2i Standard Quick Changer (#2456313), the T-2i Heavy-Duty Quick Changer (#2456313A) and the T-2 Standard and Heavy-Duty Quick Change Systems (#2456321, #2456322).\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\u003eBaader Zeiss-dovetail T-2 Quick Changers (#2456313, #2456313A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e52\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eS42\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\"\u003eMolded Plastic Cap for T2 Quick Changer\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\/Baader_Planetarium_Astro_T-2_System_Connections_Overview.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\"\u003eBaader Planetarium Astro T-2 System Connections Overview\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\/Baader_Planetarium_Astro_T-2_System_Parts_List.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\"\u003eBaader Planetarium Astro T-2 System Parts List\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\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967355154717,"sku":"BAA-2904020","price":10.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Molded-Plastic-Cap-for-T2-Quick-Changer-1__01528.1597110897.1280.1280.jpg?v=1684341295"},{"product_id":"baader-machine-grease-2-teflon-white-from-25-c-to-40-c","title":"Baader Machine-Grease #2 Teflon-White - from -25°C to +40°C","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eTeflon-infused white machine grease\u003c\/li\u003e\n\u003cli\u003eOperating Temperature Range: -25°C to +40°C\u003c\/li\u003e\n\u003cli\u003eReduces stiction in mechanical components\u003c\/li\u003e\n\u003cli\u003eIdeal for telescope mounts, focusers, and accessories\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\u003eBaader Machine-Grease #2 Teflon-White\u003c\/h2\u003e\n\u003cp\u003eThe Baader Machine-Grease #2 Teflon-White is engineered to maintain consistent viscosity and lubrication across a wide thermal window, operating effectively from a frigid -25°C (-13°F) to a warm +40°C (104°F). This specific formulation prevents the stiffening that plagues standard greases on cold nights and the thinning that can occur in summer heat, ensuring your mount's tracking and slewing remain smooth year-round.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eStable Lubrication from -25°C to +40°C\u003c\/h3\u003e\n\u003cp\u003eUnlike general-purpose lubricants, Baader's Teflon-White grease is designed for the specific demands of astronomical equipment. The infusion of Teflon provides an extremely low-friction surface on gears, bearings, and other moving parts, which is critical for minimizing periodic error in worm drives and eliminating backlash in \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocusers\u003c\/a\u003e. Its stable performance between -25°C and +40°C means your mount behaves predictably, whether you're imaging in deep winter or observing during a summer star party.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\nReduced Stiction: Brilliant slipping properties and an ultra-low slip-stick tendency give a smooth mechanical response without the initial \"jump\" common with sticky, improperly lubricated systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Consistency:\u003c\/strong\u003e The grease's base is formulated to avoid freezing or becoming excessively thick at -25°C, a common failure point for lubricants not intended for outdoor, all-season use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean Application:\u003c\/strong\u003e The white color makes it easy to see where the grease has been applied and to identify any contamination from dirt or metal shavings during maintenance.\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 is Baader Machine-Grease #2 Teflon-White best used for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis grease is specifically intended for the lubrication of fine mechanical components in astronomical equipment. It is ideal for the worm and ring gears of \u003ca href=\"\/en-int\/collections\/equatorial-mounts\"\u003eGerman equatorial mounts\u003c\/a\u003e, bearings in altitude-azimuth mounts, focuser drawtubes, and other metal-on-metal contact points requiring smooth, low-friction movement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is the -25°C to +40°C range of the Baader grease important for my telescope mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA telescope mount's tracking accuracy depends on the consistent, smooth motion of its gears. Standard greases can become as thick as paste in freezing temperatures, causing motor strain and jerky tracking. The \u003cstrong\u003eBaader Machine-Grease #2\u003c\/strong\u003e is formulated to remain pliable down to -25°C, ensuring your mount performs correctly even on the coldest observing nights.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat advantage does the Teflon in the Baader grease provide?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eTeflon (PTFE)\u003c\/strong\u003e is an extremely low-friction material. This grease has brilliant slipping properties, an ultra-low slip-stick tendency and long-life stability, which means smoother slewing and easier manual adjustments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does Baader Machine-Grease #2 differ from lithium grease from a hardware store?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile general-purpose lithium grease is a good lubricant, it is not optimized for the wide temperature swings and precision requirements of astronomy. Baader's grease is specifically engineered to maintain its lubricating properties from -25°C to +40°C without separating or becoming stiff. \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much Baader grease should I apply during a mount tune-up?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eLess is more. After thoroughly cleaning the old grease from the components, apply a thin, even film of Baader Machine-Grease #2 to the gear teeth and bearing surfaces. Over-greasing can attract dirt and actually increase drag in the system. The goal is a complete but not excessive coating.\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\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.02\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\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967373242653,"sku":"BAA-2905110","price":17.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Machine-Grease-no2-Teflon-White-from-25-degreeC-to-40-degreeC-1__95481.1597111063.1280.1280.jpg?v=1684341600"},{"product_id":"baader-machine-grease-4-ultra-range-from-50-c-to-60-c","title":"Baader Machine-Grease #4 Ultra-Range - from -50°C to +60°C","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eUltra-Wide Temperature Range: -50°C to +60°C\u003c\/li\u003e\n\u003cli\u003eZero Outgassing Formula: Safe for use near sealed optics.\u003c\/li\u003e\n\u003cli\u003ePermanent Viscosity: Will not harden, dry out, or separate over time.\u003c\/li\u003e\n\u003cli\u003eSCT-Optimized: Specifically designed for mirror slide fittings in Celestron and other SC telescopes.\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\u003eBaader Machine-Grease #4 Ultra-Range - from -50°C to +60°C\u003c\/h2\u003e\n\u003cp\u003eBaader Machine-Grease #4 Ultra-Range is engineered for critical astronomical applications, maintaining its viscosity from a frigid -50°C to a warm +60°C. This exceptional thermal window ensures the grease will not outgas, harden, or separate, protecting sensitive optics inside sealed tube assemblies like \u003ca href=\"\/en-int\/collections\/schmidt-cassegrain-telescopes\"\u003eSchmidt-Cassegrains\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\u003eEngineered for SCTs: Zero Outgassing from -50°C to +60°C\u003c\/h3\u003e\n\u003cp\u003eThe primary application for Baader Grease #4 is the mirror sliding mechanism in Schmidt-Cassegrain telescopes. Standard greases release vapors (outgassing) that can permanently coat the inside of a corrector plate and primary mirror, degrading contrast and clarity. This formula is chemically inert across its entire -50°C to +60°C operating range, producing zero outgassing to keep your optics pristine. It provides a smooth, consistent focusing action without the risk of image-degrading contamination.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eLong-Term Mechanical Reliability: No Hardening, No Separation\u003c\/h3\u003e\n\u003cp\u003eUnlike many industrial lubricants, Baader Grease #4 is designed for permanence. It will not harden in the cold or decompose into solid and liquid parts over years of use. This long-term stability is critical not only for SCTs but also for telescope \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocusers\u003c\/a\u003e and mount gears, where grease separation can lead to stiff, jerky motion and eventual mechanical failure. By maintaining its original consistency, this grease ensures your equipment operates as smoothly years from now as it does today.\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 is Baader Machine-Grease #4 essential for my Celestron SCT's focusing mechanism?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYour Celestron SCT focuses by moving the primary mirror along a baffled tube. This mechanism requires lubrication, but standard greases will release chemical vapors inside the sealed optical tube, coating your mirror and corrector plate. \u003cstrong\u003eBaader Machine-Grease #4 is formulated to be \"optically safe\" with zero outgassing\u003c\/strong\u003e, so it lubricates the mechanism without contaminating your optics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use Baader Grease #4 on my equatorial mount's gears for better cold-weather operation?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Its stability down to -50°C makes it an excellent choice for \u003ca href=\"\/en-int\/collections\/equatorial-mounts\"\u003eequatorial mounts\u003c\/a\u003e used in cold climates. Many generic greases become stiff or freeze at low temperatures, causing sluggish movement and strain on the drive motors. Baader Grease #4 maintains a workable viscosity, ensuring smooth tracking and slewing even on the coldest winter nights.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat's the risk of using a generic lithium grease inside my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary risks are outgassing and separation. \u003cstrong\u003eGeneric greases release vapors that will deposit a film on your mirrors and lenses\u003c\/strong\u003e, which is very difficult to clean. They also tend to separate over time into a hard, waxy solid and a thin oil, which can cause the mechanism to bind or leak oil onto unintended surfaces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the -50°C temperature rating on Baader Grease #4 help during winter observing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe -50°C rating ensures the grease does not harden or freeze during cold-weather use. This is critical for any moving part, from a focuser drawtube to mount gears. It prevents mechanisms from becoming stiff and difficult to operate, which is a common failure point for equipment lubricated with standard greases.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill Baader Machine-Grease #4 dry out or separate over time?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. It is specifically formulated to be chemically stable for long-term applications. It will not harden, dry out, or decompose into its constituent parts, ensuring consistent mechanical operation for many years without needing to be re-applied.\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\u003eOperating Temperature Range\u003c\/td\u003e\n\u003ctd\u003e-50°C to +60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutgassing\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChemical Stability\u003c\/td\u003e\n\u003ctd\u003eDoes not harden or separate over time\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Application\u003c\/td\u003e\n\u003ctd\u003eSCT mirror focusing mechanisms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eThis product consists of one container of grease. The volume or weight is not specified by the manufacturer.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967373308189,"sku":"BAA-2905120","price":66.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Machine-Grease-no4-Ultra-Range-from-50-degreeC-to-60-degreeC-1__64017.1597111064.1280.1280.jpg?v=1684341604"},{"product_id":"baader-turbo-film-nd-0-1-127x51cm","title":"Baader Turbo Film ND 0.1 - 127x51cm","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e127cm x 51cm Sheet for Custom Applications\u003c\/li\u003e\n\u003cli\u003e1\/10 Wave Optical Precision\u003c\/li\u003e\n\u003cli\u003eProtects Against Dust, Moisture, and Air Currents\u003c\/li\u003e\n\u003cli\u003eNeutral Density 0.1\u003c\/li\u003e\n\u003cli\u003eZero Image Degradation\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\u003eBaader Turbo Film ND 0.1 - 127x51cm\u003c\/h2\u003e\n      \u003cp\u003eThe Baader Turbo Film delivers the optical precision of a 1\/10 wave plane parallel window in a versatile 127 x 51cm sheet. This advanced monomer film achieves its perfect homogeneity through a proprietary annealing process, ensuring it can protect your valuable optics from the environment without introducing any image degradation.\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\u003eA 1\/10 Wave Plane Parallel Optical Window\u003c\/h3\u003e\n      \u003cp\u003eThis film is engineered to perform on par with a 1\/10 wave optical window, a standard typically reserved for high-end glass optics. Selected after testing over 200 different samples on a Zeiss autocollimator, Turbo Film possesses the lowest wedge error of any optical window available. Unlike common Mylar, this crystal-clear material was developed for nuclear and particle physics experiments, guaranteeing it will not compromise the resolution or contrast of your telescope's main optics.\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\u003eReduce Tube Currents in OTAs up to 51cm Wide\u003c\/h3\u003e\n      \u003cp\u003eFor owners of open-tube telescopes like \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonians\u003c\/a\u003e, \u003ca href=\"\/en-int\/collections\/dobsonians\"\u003eDobsonians\u003c\/a\u003e, or truss-tube Ritchey-Chrétiens, Turbo Film provides an effective solution for sealing the optical path. By creating a barrier at the front of the tube, it dramatically reduces internal air currents and prevents dust and humidity from settling on your primary mirror. This protection is achieved with virtually zero impact on the incoming wavefront, preserving the fine detail on planetary surfaces and the sharpness of stellar 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 is the primary use for Baader Turbo Film?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003e\u003cstrong\u003eBaader Turbo Film\u003c\/strong\u003e is designed to serve as an optically perfect protective window for telescope tubes. Its main applications are to seal open-tube designs (such as open Newtonian and Dobsonian tubes) to prevent dust, moisture, and dew from reaching the primary optics, and to significantly reduce internal tube currents that can degrade image quality.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs Baader Turbo Film the same as AstroSolar film for sun viewing?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003e\u003cstrong\u003eAbsolutely not.\u003c\/strong\u003e While it shares a similar base material, Baader Turbo Film is not coated for safe solar observation and must never be used for viewing the Sun. It has a neutral density of 0.1, far less dense than the ND 5.0 required for safe \u003ca href=\"\/en-int\/collections\/solar-filters\"\u003esolar filters\u003c\/a\u003e: ND 5.0 passes about 79,000 times less light than ND 0.1. Using this film to look at the Sun will cause immediate and permanent eye damage.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use Baader Turbo Film on my large Dobsonian to reduce tube currents?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, this is an ideal application. By stretching the \u003cstrong\u003eBaader Turbo Film\u003c\/strong\u003e over a custom-made frame at the top of your Dobsonian's tube or truss assembly, you can effectively stop internal air from mixing with the ambient air. This stabilizes the image and often results in sharper, more detailed views, especially during planetary observation where stable \"seeing\" is critical.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 1\/10 wave quality of Baader Turbo Film benefit my telescope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eA \u003cstrong\u003e1\/10 wave\u003c\/strong\u003e figure means the surface is exceptionally flat and uniform, introducing no discernible distortion to the light passing through it. For a telescope, this means the film acts as a truly transparent window, preserving the original quality of your primary mirror or lens without adding aberrations, reducing sharpness, or affecting contrast.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill installing Baader Turbo Film on my truss-tube RC telescope affect collimation or image quality?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo. When properly mounted without wrinkles, the \u003cstrong\u003eBaader Turbo Film\u003c\/strong\u003e is so optically flat and free of wedge error that it will not alter the optical path or affect collimation. Its purpose is to seal the tube from the environment—reducing boundary layer issues and keeping optics clean—without any negative impact on the high-resolution images these systems are designed to produce.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes Baader Turbo Film different from standard Mylar?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003e\u003cstrong\u003eBaader Turbo Film\u003c\/strong\u003e is a highly specialized monomer film that undergoes a proprietary annealing process to achieve optical homogeneity. Standard Mylar is a polymer film that lacks this level of precision and often suffers from internal stresses, thickness variations, and wedge error that will visibly degrade a telescope's image quality. Turbo Film is a true optical component, whereas Mylar is an industrial material.\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\u003c\/td\u003e\n\u003ctd\u003eBaader Turbo Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e127 cm x 51 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Quality\u003c\/td\u003e\n\u003ctd\u003e1\/10 wave\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNeutral Density\u003c\/td\u003e\n\u003ctd\u003e0.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.03\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003eca. 127 x 51 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUsage\u003c\/td\u003e\n\u003ctd\u003eUse to protect your telescope and optical equipment against dust and humidity – without reducing the optical quality\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAstroSolar Film\u003c\/td\u003e\n\u003ctd\u003eAstroSolar Turbo Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSolar Filter with mount\/thread?\u003c\/td\u003e\n\u003ctd\u003eNo\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\"\u003eBaader Turbo Film - 127x51cm sheet\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\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967374520605,"sku":"BAA-2459350","price":50.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Turbo-Film-ND-0-1-127x51cm-1__47969.1597111090.1280.1280.jpg?v=1684341676"},{"product_id":"baader-laser-collimator-mark-iii","title":"Baader Laser Collimator  Mark III","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003ePrecision Laser Collimator for Reflecting Telescopes\u003c\/li\u003e\n\u003cli\u003eSimplifies Secondary and Primary Mirror Alignment\u003c\/li\u003e\n\u003cli\u003eEnables Fast Collimation in Low-Light Conditions\u003c\/li\u003e\n\u003cli\u003eDesigned for Newtonian, Dobsonian and Schmidt-Cassegrain Telescopes\u003c\/li\u003e\n\u003cli\u003eImproves Image Contrast and Sharpness\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\u003eBaader Laser Collimator Mark III\u003c\/h2\u003e\n      \u003cp\u003eThe Baader Laser Collimator Mark III is an essential tool for any reflecting telescope owner, designed to achieve precise optical alignment quickly and intuitively. By providing an accurate, visible beam, it removes the guesswork from adjusting your primary and secondary mirrors. Proper collimation is the single most important factor for achieving sharp, high-contrast views, and the Laser-Colli Mark III makes this critical maintenance task straightforward, even for beginners.\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\u003eFast, Precise Newtonian Collimation with the Laser-Colli Mark III\u003c\/h3\u003e\n      \u003cp\u003eThis collimator streamlines the two-step alignment process for \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonian telescopes\u003c\/a\u003e. Once inserted into the \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e, the laser beam projects onto the secondary mirror and then to the primary. Your first adjustment is to tilt the secondary mirror until the red dot is centered on your primary mirror's center mark. The second step is to adjust the primary mirror's collimation screws until the return beam travels back from the primary and enters the viewing port on the collimator. This simple, visual feedback system allows you to achieve near-perfect alignment in minutes, ensuring your telescope delivers its maximum possible resolution on planets and deep-sky objects.\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\u003eLaser vs. Manual Tools: Why the Mark III is Faster\u003c\/h3\u003e\n      \u003cp\u003eCompared to traditional \u003ca href=\"\/en-int\/collections\/collimation-tools\"\u003ecollimation tools\u003c\/a\u003e, a laser offers significant advantages in speed and ease of use, especially at night. While tools like Cheshire \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepieces\u003c\/a\u003e are effective, they rely on ambient light and can be difficult to interpret in the dark at the observing site.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n          \u003cstrong\u003eSpeed and Efficiency:\u003c\/strong\u003e The Baader Laser-Colli Mark III provides instant visual feedback, allowing you to make adjustments and see the results in real-time without moving back and forth to the eyepiece.\n        \u003c\/li\u003e\n        \u003cli\u003e\n          \u003cstrong\u003eLow-Light Usability:\u003c\/strong\u003e Unlike a Cheshire, the laser generates its own light, making it the ideal tool for quick alignment checks and adjustments in the field, long after sunset.\n        \u003c\/li\u003e\n        \u003cli\u003e\n          \u003cstrong\u003eThe Trade-Off:\u003c\/strong\u003e The primary limitation of any laser collimator is that the laser itself must be perfectly aligned within its housing. It's critical to periodically check the collimator's own alignment to ensure it remains a reliable reference.\n        \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 type of telescope is the Baader Laser Colli Mark III designed for?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe Baader Laser Colli Mark III is designed for aligning the optics of Newtonian reflectors and \u003ca href=\"\/en-int\/collections\/schmidt-cassegrain-telescopes\"\u003eSchmidt-Cassegrain telescopes\u003c\/a\u003e, including most \u003cstrong\u003eDobsonian\u003c\/strong\u003e telescopes. It is the most effective tool for setting the secondary and primary mirrors in these designs.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the Baader Laser Colli Mark III to align my 8\" f\/6 Dobsonian?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eFirst, insert the Laser Colli Mark III into your telescope's focuser. Adjust the \u003cstrong\u003esecondary mirror\u003c\/strong\u003e until the laser dot hits the exact center of the primary mirror's center spot. Then, move to the back of your telescope and adjust the \u003cstrong\u003eprimary mirror collimation knobs\u003c\/strong\u003e until the laser beam reflects off the primary and travels back into the aperture of the collimator. This two-step process ensures the optical path is correctly aligned for sharp views.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Baader Laser Colli Mark III for a Schmidt-Cassegrain (SCT) or a refractor?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes for Schmidt-Cassegrain telescopes, which are listed as suitable alongside Newtonians. \u003ca href=\"\/en-int\/collections\/refractors\"\u003eRefractors\u003c\/a\u003e are not on that list. On an SCT you tilt the secondary mirror until the reflected beam falls back into itself, and refractors rarely require user collimation. If you prefer not to mark the center of the secondary mirror, stick with the star collimation method from your SCT manual.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow can I check if my Baader Laser Colli Mark III is properly collimated?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eTo check the collimator's own alignment, place it in a V-block or a very steady focuser and project the beam onto a distant wall. Rotate the collimator in the V-block. If the laser dot on the wall stays in one place, it's collimated. If the dot draws a circle, it needs adjustment using its built-in alignment screws.\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 Baader Laser Colli Mark III over a simple Cheshire eyepiece?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe main advantage is \u003cstrong\u003espeed and use in the dark\u003c\/strong\u003e. A Cheshire requires a light source to illuminate its crosshairs and can be hard to see through at night. The Laser Colli Mark III generates its own light source, providing immediate and unambiguous feedback, which makes it much faster for field adjustments.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDo I still need to star test my telescope after using the Baader Laser Colli Mark III?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eWhile the Laser Colli Mark III will get your alignment very close to perfect, a star test is the ultimate confirmation of optical alignment. For critical planetary imaging or high-power viewing, it is best practice to use the laser for coarse alignment and then perform a final, fine-tuning star test on a night of good seeing to achieve the best possible 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\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible telescopes\u003c\/td\u003e\n\u003ctd\u003eSchmidt-Cassegrain, Newton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eø 1¼\" (31.75 mm)\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\"\u003eBaader Laser Collimator  Mark III\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\/Baader_Planetarium_Laser_Colli_Mark_III_Collimation_Guide_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\"\u003eBaader Planetarium Laser Colli Mark III Collimation Guide 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\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty Policy\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967374848285,"sku":"BAA-2450343","price":143.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Laser-Collimator-Mark-III-1__43902.1597111091.1280.1280.jpg?v=1684341425"},{"product_id":"baader-optical-wonder-cloth","title":"Baader Optical Wonder Cloth","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eEngineered for delicate optical coatings\u003c\/li\u003e\n\u003cli\u003eSuper Microfiber material lifts oils and dust\u003c\/li\u003e\n\u003cli\u003eLeaves a streak-free, lint-free finish\u003c\/li\u003e\n\u003cli\u003eSafe for telescopes, eyepieces, filters, and camera lenses\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\u003eBaader Optical Wonder Cloth\u003c\/h2\u003e\n\u003cp\u003eThe Baader Optical Wonder Cloth is not a generic cleaning accessory; it is a purpose-built maintenance tool for astronomers who understand that optical coatings are as critical as the glass they protect. Made from a super microfiber material and measuring 25 cm x 25 cm, this cloth is engineered to safely remove stubborn fingerprints, dew spots, and dust from the most delicate multi-coated surfaces without leaving behind lint, streaks, or damaging micro-scratches. It is the essential final step in restoring your optics to their original, pristine condition.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSuper Microfiber Construction: Safe, Lint-Free Cleaning\u003c\/h3\u003e\n\u003cp\u003eStandard cloths can shed fibers and may be too abrasive for the nanometer-thin coatings on modern \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepieces\u003c\/a\u003e and corrector plates. The Baader Optical Wonder Cloth uses an ultra-fine, tightly woven microfiber designed to trap and lift oils and moisture at a microscopic level, rather than just smearing them across the lens. This structure ensures that when you clean, you are removing contaminants completely, preserving the high-contrast views your telescope was designed to deliver.\u003c\/p\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 Final Step in Optical Maintenance\u003c\/h3\u003e\n\u003cp\u003eWhile a quality cleaning fluid does the heavy lifting, the cloth you use for the final wipe determines the result. The Optical Wonder Cloth is designed to work in tandem with solutions like Baader's Optical Wonder Fluid, absorbing any remaining residue to leave a clean surface. Using the right cloth prevents the frustrating experience of cleaning a lens only to find it covered in a new layer of haze and lint under inspection.\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 Baader Optical Wonder Cloth different from a regular microfiber cloth?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eBaader Optical Wonder Cloth\u003c\/strong\u003e is made from a \"super microfiber\" material specifically selected for its non-abrasive and lint-free properties. Unlike general-purpose cloths, its weave is optimized for cleaning the delicate, multi-layered coatings found on astronomical optics without causing microscopic scratches or leaving behind fiber residue that degrades image contrast.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Optical Wonder Cloth safe for my Schmidt-Cassegrain's corrector plate?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The cloth cleans eyepieces, objective lenses and even mirrors without scratching; for mirrors, follow the separate cleaning instructions. Always blow off loose dust first, then use the cloth with a quality cleaning fluid in a gentle, deliberate motion to avoid scratching the surface with trapped grit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow should I clean my eyepieces with the Baader Optical Wonder Cloth?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor eyepieces, the best practice is to first use an air blower to remove any loose particles. If necessary, apply one or two drops of a cleaning fluid like Baader's Optical Wonder Fluid to the cloth (not directly to the lens). Gently wipe the lens from the center to the edge in a circular or spiral motion. This technique lifts oils and residue without leaving streaks.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I wash the Baader Optical Wonder Cloth?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. To maintain its effectiveness, the cloth must be kept clean. The cloth is machine washable; use a mild detergent and warm water, then rinse thoroughly. Do not use fabric softener, as it will clog the microfibers and cause streaking. Allow it to air dry completely before storing it in a sealed bag to prevent contamination.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eShould I use the Baader Optical Wonder Cloth dry or with a cleaning fluid?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe cloth can be used dry to gently lift very light dust. However, for fingerprints, pollen, or dried dew spots, it is far more effective and safer for your optics to use it with a dedicated optical cleaning fluid. The fluid dissolves contaminants, and the cloth then absorbs them for a streak-free finish.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is using a specialized cloth like this important?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYour telescope's performance is entirely dependent on the integrity of its optical surfaces and their coatings. Using an improper cloth, like a t-shirt or paper towel, can permanently damage these coatings, reducing light transmission and contrast. The Baader Optical Wonder Cloth is an inexpensive insurance policy to protect your significant investment in high-quality optics.\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\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.01\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\"\u003eBaader Optical Wonder Cloth\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\/Baader_Planetarium_Cleaning_and_Maintenance_of_Optics_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\"\u003eBaader Planetarium Cleaning and Maintenance of Optics Manual\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003eCleaning \u0026amp; Maintenance Guide\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\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967377797405,"sku":"BAA-2905000","price":12.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Optical-Wonder-Cloth-1__06010.1620255483.1280.1280.jpg?v=1684341680"},{"product_id":"zwo-fan-for-cooled-pro-cameras","title":"ZWO Replacement Fan for ASI Cameras","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eOfficial ZWO OEM replacement fan\u003c\/li\u003e\n\u003cli\u003eRestores original cooling performance to Cooled\/Pro cameras\u003c\/li\u003e\n\u003cli\u003eBacked by a 2-year manufacturer warranty\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\u003eZWO Replacement Fan for ASI Cooled\/Pro Cameras\u003c\/h2\u003e\n\u003cp\u003eThis official ZWO Replacement Fan is the factory-correct component for restoring full thermal performance to your ASI Cooled or Pro camera, backed by a direct 2-year warranty. If your camera's fan has failed or become noisy, this OEM part ensures you can once again achieve the maximum cooling delta required for clean, low-noise long-exposure 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\u003eTwo Versions: Fan and Fan 50\u003c\/h3\u003e\n\u003cp\u003eZWO sells this replacement in two versions, Fan and Fan 50, and does not publish a compatibility list. Dealers list the larger Fan 50 for the ASI2400, ASI2600 and ASI6200 cameras and the standard Fan for ZWO's other \u003ca href=\"\/en-int\/collections\/deep-sky-cameras\"\u003ecooled cameras\u003c\/a\u003e. Check the size of the fan fitted to your camera before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eOEM Replacement Backed by a 2-Year Warranty\u003c\/h3\u003e\n\u003cp\u003eWhen your camera's active cooling is compromised, thermal noise quickly degrades image quality. This is a genuine ZWO part, guaranteeing the correct airflow and voltage specifications to bring your camera's TEC cooler back to its full potential. It is supported by a 2-year warranty.\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 confirm this ZWO Replacement Fan fits my camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eCheck the size of the fan fitted to your camera. ZWO offers a standard Fan and a larger Fan 50; dealers list the Fan 50 for the ASI2400, ASI2600 and ASI6200 cameras and the standard Fan for ZWO's other cooled cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this ZWO Replacement Fan fix my original ASI1600MM Pro that isn't cooling properly?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIf the fan has audibly failed or stopped spinning, then this replacement part is very likely the correct solution. A functioning fan is essential for the thermoelectric cooler (TEC) to dissipate heat. Check that the replacement matches the size of the fan in your camera.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have an ASI2600MC Pro with a dead fan. Is this the correct ZWO replacement fan?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eChoose the Fan 50 variant on this listing. Dealers list the Fan 50 as the replacement fan for the ASI2400, ASI2600 and ASI6200 cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat tools are needed to install the ZWO Replacement Fan?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTypically, you will only need a small Phillips head screwdriver to remove the camera's outer housing and the old fan's mounting screws. The fan connects via a small plug that does not require soldering.\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\u003eZWO-FAN \/ ZWO-FAN-50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eZWO cooled cameras (dealers list Fan 50 for ASI2400, ASI2600, ASI6200)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e2 Years\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\"\u003eZWO Cooling Fan\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\/zwo-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eZWO 2-Year Limited Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ZWO","offers":[{"title":"Fan (40 x 40 x 10mm)","offer_id":50344323514653,"sku":"ZWO-FAN","price":20.0,"currency_code":"CAD","in_stock":true},{"title":"Fan 50 (50 x 50 x 10mm)","offer_id":50344323547421,"sku":"ZWO-FAN-50","price":20.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/ZWO-Fan-for-Cooled-Pro-Cameras-1__26682.1596910055.1280.1280.jpg?v=1684341941"},{"product_id":"zwo-soft-bag-for-cooled-cameras","title":"ZWO Soft Bag for Cooled Cameras","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eOfficial ZWO Soft Bag for ZWO Cooled Cameras\u003c\/li\u003e\n\u003cli\u003eConstructed from Padded Heavy-Duty Fabric\u003c\/li\u003e\n\u003cli\u003eLightweight Alternative to Hard Cases\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\u003eZWO Soft Bag for Cooled Cameras\u003c\/h2\u003e\n\u003cp\u003eThis ZWO Soft Bag provides a padded enclosure for safe storage and transport of your ZWO cooled camera. It is the same bag ZWO now includes in its cooled camera boxes, and it is backed by a 2-year warranty.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePadded Protection for Your Camera\u003c\/h3\u003e\n\u003cp\u003eConstructed from padded, heavy-duty fabric, this bag protects your ZWO cooled camera from minor bumps, scratches, and dust.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eOEM Replacement with a 2-Year Warranty\u003c\/h3\u003e\n\u003cp\u003eThis is the identical soft bag that ZWO includes with their new cooled cameras, making it the perfect replacement for a lost or damaged original. As a lightweight alternative to a bulky \u003ca href=\"\/en-int\/collections\/cases-and-covers\"\u003ehard case\u003c\/a\u003e, it's ideal for local trips or for organizing your gear at home. Note that this is a soft bag and does not include custom foam inserts; protection is provided by the padded fabric construction.\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 this the same bag that comes with new ZWO cooled cameras?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is the official OEM (Original Equipment Manufacturer) soft bag. If you've lost or damaged the case that came with your camera, this is the direct replacement from ZWO.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the ZWO Soft Bag include any foam inserts for accessories?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the bag does not come with any foam inserts. It is a simple, single-compartment soft case where protection is provided by the \u003cstrong\u003epadded heavy-duty fabric\u003c\/strong\u003e of the walls themselves.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I store my ZWO camera in this bag with desiccant tablets installed?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The bag is perfectly sized for storing the camera body, even with the desiccant holder installed on the side of the camera. It helps keep the camera in a clean, contained environment between imaging sessions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much protection does the ZWO Soft Bag offer compared to a hard case?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe soft bag is designed to protect against dust, scratches, and minor bumps. It is not a substitute for a hard case with custom foam for shipping or air travel. It's best suited for carrying your camera in a larger gear bag or for safe storage at home.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the warranty on the ZWO Soft Bag?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eLike other ZWO accessories, this soft bag is covered by a \u003cstrong\u003e2-year warranty\u003c\/strong\u003e against manufacturing defects.\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\u003eZWO-SOFTBAG1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eZWO cooled cameras\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePadded Heavy-Duty Fabric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFoam Inserts\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e2 Years\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\"\u003eZWO Soft Bag for Cooled Cameras\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\/zwo-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eZWO 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ZWO","offers":[{"title":"Default Title","offer_id":44967445725469,"sku":"ZWO-Softbag1","price":24.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/ZWO-Soft-Bag-for-Cooled-Cameras.jpg?v=1742408719"},{"product_id":"farpoint-cheshire-collimator-1-25","title":"Farpoint Cheshire Collimator - 1.25\"","description":"\u003c!-- more --\u003e\u003cp\u003eFarpoint 1.25 Inch \u003ca href=\"\/en-int\/collections\/collimation-tools\"\u003eCheshire\u003c\/a\u003e Collimator is a simple tool that helps align the optical axes of the mirrors of a \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonian Reflector\u003c\/a\u003e, a process called collimation.  This precision-machined, blue anodized alignment tool for 1.25\" apertures is practically indestructible and requires no batteries.\u003c\/p\u003e\u003cp\u003eA Cheshire eyepiece or Cheshire collimator consists of a peephole that is inserted into the telescope \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e in place of the \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepiece\u003c\/a\u003e. Ambient light falls on the brightly painted oblique back of the peephole. Images of this bright surface are reflected by the mirrors of a Newtonian Reflector and can thus be seen by a person peering through the hole. A Cheshire eyepiece contains no lenses or other polished optical surfaces.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e","brand":"Farpoint","offers":[{"title":"Default Title","offer_id":44967468794141,"sku":"FAP-FP260","price":60.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Farpoint-Cheshire-Collimator-1-25-inch-1__07616.1597638149.1280.1280.jpg?v=1684342567"},{"product_id":"farpoint-collimation-kit-with-case-1-25","title":"Farpoint Collimation Kit with Case- 1.25\"","description":"\u003c!-- more --\u003e\u003cp\u003eFarpoint 1.25 Inch Collimation Kit includes a 1.25\" stepped barrel 650nm \u003ca href=\"\/en-int\/collections\/collimation-tools\"\u003elaser collimator\u003c\/a\u003e plus 1.25\" cheshire. These tools help align the optical axes of the mirrors of a \u003ca href=\"\/en-int\/collections\/newtonian-telescopes\"\u003eNewtonian Reflector\u003c\/a\u003e.\u003c\/p\u003e\u003cp\u003eFarpoint 650nm Laser Collimator is precisely machined from a single piece of aluminum in a single machining step, resulting in perfect alignment.  Offering the smallest aperture of any other laser in the amateur astronomy market, Farpoint lasers feature an aperture (0.76mm or 30\/1000 of an inch) producing less speckling and more precise reading of the laser beam’s position on the telescope mirror.\u003c\/p\u003e\u003cp\u003eFeatures a 1.25\" barrel, an extra bright 650nm red laser, and superior EIGHT screw alignment arrangement ensuring that BOTH ends of the laser diode are held in place by two sets of directly opposing screws for precise and lasting alignment.\u003c\/p\u003e\u003cp\u003eFarpoint 1.25\" Cheshire Collimator is a precision-machined, red anodized alignment tool for 1.25\" apertures, is practically indestructible, and requires no batteries.\u003c\/p\u003e\u003cp\u003eA Cheshire eyepiece or Cheshire collimator consists of a peephole that is inserted into the telescope \u003ca href=\"\/en-int\/collections\/focusers\"\u003efocuser\u003c\/a\u003e in place of the \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepiece\u003c\/a\u003e. Ambient light falls on the brightly painted oblique back of the peephole. Images of this bright surface are reflected by the mirrors or lenses of the telescope and can thus be seen by a person peering through the hole. A Cheshire eyepiece contains no lenses or other polished optical surfaces.\u003c\/p\u003e\u003cp\u003eKit also includes a mirror spotting template and triangle center spots to help simplify the process of center spotting a primary mirror.\u003c\/p\u003e","brand":"Farpoint","offers":[{"title":"Default Title","offer_id":44967469089053,"sku":"FAP-FP247","price":220.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Farpoint-Collimation-Kit-1-25-inch-1__47641.1597638151.1280.1280.jpg?v=1684342553"},{"product_id":"farpoint-knob-spring-kit-meade-lightbridge","title":"Farpoint Knob\/Spring Kit - Meade LightBridge","description":"\u003c!-- more --\u003e\u003cp\u003eUpgrade standard telescope primary mirror collimation springs and collimation knobs with Farpoint Knob\/Spring Kit. These replacement springs are many times stiffer than the stock springs and drastically improve the collimation retention of telescopes. Three 1.5\" diameter knobs are included with the kit.  The knobs are machined from aluminum, knurled and anodized blue.\u003c\/p\u003e\u003cp\u003eWhen new Farpoint springs are installed, there is no longer a need for the standard collimation locking screws. They may be loosened all the way or removed completely.\u003c\/p\u003e\u003cp\u003eCompatible with pre-2008 Meade 12\" LightBridge telescopes and many other similar \u003ca href=\"\/en-int\/collections\/dobsonians\"\u003eDobsonians\u003c\/a\u003e.\u003c\/p\u003e","brand":"Farpoint","offers":[{"title":"12\" LightBridge (pre-2008 w\/ M7 screws)","offer_id":44967469383965,"sku":"FAP-FP320","price":74.0,"currency_code":"CAD","in_stock":false},{"title":"12\" LightBridge (post 2008)","offer_id":44967469449501,"sku":"FAP-FP322","price":68.0,"currency_code":"CAD","in_stock":false},{"title":"16\" LightBridge","offer_id":44967469482269,"sku":"FAP-FP321","price":68.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Farpoint-Knob-Spring-Kit-Meade-LightBridge-12-FP321-1__47977.1645474938.1280.1280.jpg?v=1684342570"},{"product_id":"lumicon-4-pieces-vinyl-dust-cover-1-25","title":"Lumicon 4 Pieces Vinyl Dust Cover - 1.25\"","description":"\u003c!-- more --\u003e\u003cp\u003eLumicon 4 Piece 1.25 Inch Vinyl \u003ca href=\"\/en-int\/collections\/cases-and-covers\"\u003eDust Cover\u003c\/a\u003e helps keep your 1.25\" optical accessories free from detrimental dust and dirt.  Insert onto the small end of \u003ca href=\"\/en-int\/collections\/eyepieces\"\u003eeyepieces\u003c\/a\u003e or accessories to secure the opening and keep pollutants at bay.\u003c\/p\u003e\u003cp\u003eFits industry-standard 1.25\" small barrel of eyepieces and accessories.\u003c\/p\u003e","brand":"Lumicon","offers":[{"title":"Default Title","offer_id":44967496417565,"sku":"LUM-LV1010","price":11.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Lumicon-4-Pieces-Vinyl-Dust-Cover-1-25-inch-1__71373.1597638235.1280.1280.jpg?v=1684343018"}],"url":"https:\/\/davidastro.com\/en-int\/collections\/care-and-field-gear.oembed?page=11","provider":"David Astro","version":"1.0","type":"link"}