{"title":"Astrophotography","description":"","products":[{"product_id":"celestron-off-axis-guider","title":"Celestron Off-Axis Guider","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eUses a 12.5 mm prism to intercept light from the telescope's optical path\u003c\/li\u003e\n\u003cli\u003eLarge 48mm clear aperture minimizes vignetting\u003c\/li\u003e\n\u003cli\u003e8 mm of travel on the helical focuser ensures precise guide camera focus\u003c\/li\u003e\n\u003cli\u003eIncludes a full set of adapters for SCT\/EdgeHD, M48, and M42 T-thread connections\u003c\/li\u003e\n\u003cli\u003eCorrects for tracking and opto-mechanical errors for pinpoint stars\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 Off-Axis Guider (OAG)\u003c\/h2\u003e\n\u003cp\u003eThe Celestron Off-Axis Guider (OAG) eliminates tracking errors in long-exposure astrophotography by sampling the same light path as your main camera through a generous 48mm clear aperture. Its integrated 12.5 mm prism and 8 mm travel helical focuser work together to locate and sharply focus guide stars without introducing the flexure common with separate guide scopes. Weighing just 18 oz (510 g), it provides a rigid, single-path solution for achieving perfectly round stars, even with long focal length instruments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eGuiding Through a 48mm Aperture: Eliminating Opto-Mechanical Flexure\u003c\/h3\u003e\n\u003cp\u003eFor long focal length imaging, the most significant source of elongated stars is often not the mount's tracking, but differential flexure between the main telescope and a separate guide scope. The Celestron OAG solves this by using the same optical tube for both imaging and guiding. With a 48mm clear aperture, it passes the full, unvignetted light cone to your main sensor while using an internal prism to pick off a small, peripheral section of the field for your guide camera. Any deviation seen by the guider is the exact same error affecting your main image, ensuring corrections are immediate and precise.\u003c\/p\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 12.5mm Prism Advantage: Finding Brighter Guide Stars\u003c\/h3\u003e\n\u003cp\u003eA common frustration with off-axis guiders is the difficulty of finding a sufficiently bright guide star at the edge of the field. Celestron addresses this with a large 12.5 mm prism that intercepts more light and can be adjusted radially. This allows you to position the prism closer to the better-illuminated center of the light path—just outside your main camera's sensor—dramatically increasing the brightness and availability of usable guide stars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e8mm Helical Focuser: Precision Focus without Twisting\u003c\/h3\u003e\n\u003cp\u003eAchieving perfect, simultaneous focus for both the imaging camera and the autoguider is critical. The Celestron OAG incorporates a fixed-orientation helical focuser with 8 mm of travel, allowing you to make exceptionally fine and smooth focus adjustments to the guide camera without altering its orientation. This non-rotating mechanism prevents the guide star from drifting out of the field of view during focusing and ensures your calibration remains valid. The unit includes a complete set of adapters and spacers for SCT\/EdgeHD, M48, and M42 T-thread systems, providing a turnkey solution for most DSLR and dedicated astronomy cameras.\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 use the Celestron Off-Axis Guider instead of a separate guide scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary reason is to eliminate \u003cstrong\u003edifferential flexure\u003c\/strong\u003e. A guide scope is a separate telescope with its own mounting rings and focuser, all of which can shift minutely relative to the main telescope as it tracks across the sky. The Celestron OAG uses the main telescope's optics, so any flexure or mirror shift is seen by both the imaging camera and the guide camera simultaneously, allowing the autoguider to correct for it perfectly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I achieve focus with both my imaging camera and the Celestron OAG?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFirst, achieve sharp focus with your main imaging camera through the OAG. Then, without changing the telescope's focus, adjust the OAG's \u003cstrong\u003e8 mm helical focuser\u003c\/strong\u003e until the stars in your guide camera are also sharp. The goal is to make the light path distance from the prism to the guide sensor equal to the distance from the OAG's center to your imaging sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the 12.5 mm prism on the Celestron OAG vignette my full-frame camera sensor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, when properly adjusted. The prism is designed to be positioned just outside the light cone used by the main imaging sensor. The large 48mm clear aperture of the OAG body is sufficient for full-frame sensors, and you can slide the prism stalk radially outwards to ensure it does not cast a shadow on your imaging chip.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat adapters are included with the Celestron Off-Axis Guider?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Celestron OAG comes with a comprehensive set of adapters to fit most common imaging setups. Included are:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSCT\/EdgeHD adapter (female thread to connect to the telescope)\u003c\/li\u003e\n\u003cli\u003eM48 and M42 (T-thread) female adapters for the telescope side\u003c\/li\u003e\n\u003cli\u003eM48 and M42 (T-thread) male adapters for the camera side\u003c\/li\u003e\n\u003cli\u003eThree T-thread extension spacers for achieving the correct back focus\u003c\/li\u003e\n\u003cli\u003eA 1.25\" adapter for the autoguider port\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 Celestron OAG suitable for imaging planets like Jupiter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, an off-axis guider is not necessary for planetary imaging. Planetary work involves taking thousands of very short exposures (video), where atmospheric turbulence is the main challenge, not mount tracking over long periods. The OAG is specifically designed for long-exposure deep-sky astrophotography of targets like the Andromeda Galaxy (M31) or the Orion Nebula (M42).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Celestron OAG with my 8\" f\/4 Newtonian telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, but it can be challenging. Fast optical systems like f\/4 Newtonians have a very limited back focus and a more pronounced coma at the edge of the field, where the OAG prism sits. While the included adapters provide flexibility, you must ensure you have enough inward focuser travel to bring the entire imaging train to focus. The large 12.5 mm prism is a significant advantage here, as it helps find brighter guide stars in the comatic outer field.\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\u003e18 oz (510 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClear Aperture\u003c\/td\u003e\n\u003ctd\u003e48mm (1.89\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrism Size\u003c\/td\u003e\n\u003ctd\u003e12.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHelical Focuser Travel\u003c\/td\u003e\n\u003ctd\u003e8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Connection\u003c\/td\u003e\n\u003ctd\u003eSCT\/EdgeHD, M48, M42 T-thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Connection\u003c\/td\u003e\n\u003ctd\u003eM48, M42 T-thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAutoguider Connection\u003c\/td\u003e\n\u003ctd\u003e1.25\" adapter, M42 T-thread\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\"\u003eOff-Axis Guider Body\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\"\u003eSCT\/EdgeHD Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eM48 Adapter (Female)\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\"\u003eM42 T-thread Adapter (Female)\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\"\u003eM48 Adapter (Male)\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\"\u003eM42 T-thread Adapter (Male)\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\"\u003eT-thread Spacers\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 3\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 Celestron 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":44967141572893,"sku":"CEL-93648","price":486.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-Off-Axis-Guider-93648-1__70325.1594230226.1280.1280.jpg?v=1684337044"},{"product_id":"celestron-neximage-5-solar-system-imager-5mp","title":"Celestron NexImage 5 Solar System Imager (5MP)","description":"\u003c!-- more --\u003e\u003ch2\u003eFeatures\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e5 Mega pixel color sensor with Micron® DigitalClarity® technology to dramatically reduce image noise levels\u003c\/li\u003e\n\u003cli\u003eSoftware automatically filters out video frames most affected by poor atmospheric conditions, leaving only the sharpest, clearest frames to be stacked and aligned into one high-quality image\u003c\/li\u003e\n\u003cli\u003eView and capture live video on your computer\u003c\/li\u003e\n\u003cli\u003eManually adjust gain, contrast, exposure time, frame rate and color saturation using your PC\u003c\/li\u003e\n\u003cli\u003eMachined aluminum 1.25\" adapter barrel with C-threads for direct threaded connection to almost any telescope \u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eCelestron NexImage 5 Solar System Imager (5MP)\u003c\/h2\u003e\u003cp\u003eCelestron offers a wide array of high-quality, affordable, and user-friendly planetary imagers! \u003ca href=\"\/en-us\/university\/astroimaging\/how-to-choose-a-celestron-solar-system-imager\"\u003eClick here\u003c\/a\u003e to learn more on how to choose an imager that’s right for you.\u003c\/p\u003e\u003cp\u003eCapture high-resolution planetary, lunar and solar images with almost any telescope with the NexImage 5 Solar System Imager. Combined with the included software package, NexImage 5 brings out tremendous detail and produces images rivaling those taken with astronomical cameras costing hundreds more.\u003c\/p\u003e\u003cp\u003eSimply point your telescope at the Moon or a planet and record a quick video. The included software analyzes each frame of video, throws away the fuzzy ones, and perfectly aligns the remaining images. The result is a bright, clear image with the maximum amount of color and detail. NexImage 5 is a great way to get started with astroimaging, especially if you live in a light-polluted area. If you can see the planet the sky, you can image it with NexImage 5!\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e5 Mega pixel color sensor with Micron® DigitalClarity® technology to dramatically reduce image noise levels\u003c\/li\u003e\n\u003cli\u003eSmall pixel sizes provide sub arc-second planetary detail with most telescopes\u003c\/li\u003e\n\u003cli\u003eView and capture live video on your computer\u003c\/li\u003e\n\u003cli\u003eSoftware automatically filters out video frames most affected by poor atmospheric conditions, leaving only the sharpest, clearest frames to be stacked and aligned into one high-quality image\u003c\/li\u003e\n\u003cli\u003eCamera control software allows you to manually change the gain, contrast, exposure time, frame rate and color saturation using your PC\u003c\/li\u003e\n\u003cli\u003eSelectable “region of interest\" sub-framing\u003c\/li\u003e\n\u003cli\u003eMachined aluminum 1.25\" adapter barrel with C-threads for direct threaded connection to almost any telescope\u003c\/li\u003e\n\u003cli\u003eCan be used with standard 1.25\" eyepiece filters\u003c\/li\u003e\n\u003cli\u003eIntegrated IR-cut optical window\u003c\/li\u003e\n\u003cli\u003e2x2 and 4x4 binning capability in color\u003c\/li\u003e\n\u003cli\u003eProgressive scan\u003c\/li\u003e\n\u003cli\u003eIncludes USB 2.0 cable\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eSpecifications\u003c\/p\u003e\n\u003cdiv\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor or Monochrome\u003c\/td\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirements\u003c\/td\u003e\n\u003ctd\u003ePowered by USB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUSB Cable\u003c\/td\u003e\n\u003ctd\u003eUSB 2.0, cable 5' long\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Housing Construction\u003c\/td\u003e\n\u003ctd\u003eABS with aluminum connection ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Window\u003c\/td\u003e\n\u003ctd\u003eIR Cutoff Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eA\/D Conversion\u003c\/td\u003e\n\u003ctd\u003e12 bit \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImaging Sensor\u003c\/td\u003e\n\u003ctd\u003eMicron MT9P031 CMOS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePixel Size\u003c\/td\u003e\n\u003ctd\u003e2.2 micron square\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Resolution (in Pixels)\u003c\/td\u003e\n\u003ctd\u003e2592 x 1944\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Number of Pixels\u003c\/td\u003e\n\u003ctd\u003e5.0 MP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting \u003c\/td\u003e\n\u003ctd\u003e1.25\" barrel and C-thread \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Size\u003c\/td\u003e\n\u003ctd\u003e5.7mm x 4.28mm (0.22\" x 0.16\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShutter\u003c\/td\u003e\n\u003ctd\u003eElectronic Rolling Shutter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoftware Compatibility\u003c\/td\u003e\n\u003ctd\u003eiCap |  IC Capture | DirectShow \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Environment\u003c\/td\u003e\n\u003ctd\u003e-22°F to 158°F (-30°C to 70°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSub-Framing\u003c\/td\u003e\n\u003ctd\u003eHardware Selectable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExposure Range\u003c\/td\u003e\n\u003ctd\u003e0.0001 to 30 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrames per second\u003c\/td\u003e\n\u003ctd\u003e6.23 to 52.37 at the lowest resolution, 0.71 to 5.99 at the highest resolution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBack Focus Distance\u003c\/td\u003e\n\u003ctd\u003e13.1mm with nosepiece | 10.6mm without nosepiece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUSB Connection\u003c\/td\u003e\n\u003ctd\u003eHigh-Speed USB 2.0 cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended\/Best Usage\u003c\/td\u003e\n\u003ctd\u003eGetting started in lunar, solar, and planetary imaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKey Features\u003c\/td\u003e\n\u003ctd\u003e5.0 MP resolution at low cost. Larger sensor is great for lunar and solar imaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.0 oz (57 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Items\u003c\/td\u003e\n\u003ctd\u003eNexImage 5 camera body | 1.25\" nosepiece | Software CD| USB cable| Instruction manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967142228253,"sku":"CEL-93711","price":306.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-NexImage-5-Solar-System-Imager-5MP-93711-1__79221.1594230227.1280.1280.jpg?v=1684337053"},{"product_id":"celestron-basic-smartphone-adapter-1-25","title":"Celestron Basic Smartphone Adapter, 1.25”","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects smartphones to eyepieces with a 29mm - 45mm outer diameter\u003c\/li\u003e\n\u003cli\u003eSecurely holds phones from 56mm to 97mm wide\u003c\/li\u003e\n\u003cli\u003eEnables afocal photography (digiscoping) through telescopes, binoculars, and more\u003c\/li\u003e\n\u003cli\u003eDurable cast metal frame weighs just 6 oz (170.1 g)\u003c\/li\u003e\n\u003cli\u003eSimple, manual adjustment for quick setup in the field\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 Basic Smartphone Adapter, 1.25”\u003c\/h2\u003e\n\u003cp\u003eThe Celestron Basic Smartphone Adapter turns your optic into an imaging system, connecting phones from 56mm to 97mm wide to any eyepiece with an outer diameter between 29mm and 45mm. This simple, 6 oz cast metal adapter is a straightforward tool for capturing images of the Moon, wildlife, or microscope specimens directly through your eyepiece. Its closed dimensions of 177.8mm x 101.6mm x 38.1mm make it a compact addition to any field 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\u003eFits Eyepieces from 29mm to 45mm in Diameter\u003c\/h3\u003e\n\u003cp\u003eThis adapter's core function is its ability to clamp securely onto a wide range of optics. The eyepiece clamp accommodates any eyepiece with an outer diameter from 29mm to 45mm, a range that includes most standard 1.25\" telescope eyepieces, as well as the eyepieces found on many binoculars, spotting scopes, and microscopes. A simple thumb screw mechanism tightens the clamp for a firm, reliable grip on the eyepiece, ensuring your phone stays aligned.\u003c\/p\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 56mm to 97mm Clamp for Modern Smartphones\u003c\/h3\u003e\n\u003cp\u003eDesigned for modern devices, the phone clamp adjusts from 56mm to 97mm wide. This range accommodates the vast majority of current smartphones, even many larger \"plus\" or \"max\" sized models. Tightening knobs lock the phone securely in place, so you can focus on aligning the camera with the eyepiece without worrying about the device slipping. Note that bulky, folio-style cases may need to be removed to ensure a proper fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e6 oz Cast Metal Body with Manual Alignment\u003c\/h3\u003e\n\u003cp\u003eBuilt for durability and ease of use, the adapter features a cast metal frame that weighs only 6 oz (170.1 g), adding minimal weight to your setup. Adjustments are entirely manual, providing a simple, hassle-free way to position your phone's camera over the eyepiece. Once aligned, you can capture images and video, or even text a photo to a friend, all while the phone remains mounted to your optic.\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 Celestron Basic Smartphone Adapter fit my 1.25\" and 2\" telescope eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt is designed for eyepieces with an outer diameter between \u003cstrong\u003e29mm and 45mm\u003c\/strong\u003e. This covers most 1.25\" eyepieces. However, it is generally not compatible with 2\" eyepieces, as their outer housings are typically much larger than 45mm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan this adapter hold a large phone like an iPhone Pro Max or Samsung Galaxy Ultra?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The phone clamp has a range of \u003cstrong\u003e56mm to 97mm (2.20\" – 3.81\")\u003c\/strong\u003e. Most large flagship phones fall within this range, but you should measure your phone's width (with its case, if you intend to use one) to confirm it will fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need to remove my phone case to use the Celestron Basic Smartphone Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt depends on the case. While the adapter can accommodate many standard cases, very large or bulky ones (especially folio-style cases that cover the screen) may prevent the phone from fitting securely in the clamp and should be removed before use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs it difficult to align my phone's camera with the eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAlignment is a manual process. The simplest method is to turn on your phone's camera, hold the phone in the clamp over the eyepiece, and move it until you see the circular image from the eyepiece centered on your screen. Once you find the spot, tighten the clamp onto the eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this adapter for imaging the Sun through my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eAbsolutely not\u003c\/strong\u003e, unless you have a proper, full-aperture solar filter designed specifically for your telescope installed over the front of the optic. Never look at the Sun or point an unfiltered optic at the Sun. Doing so can cause permanent damage to your eyes, your camera, and your telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of optics is the Celestron Basic Smartphone Adapter compatible with?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is compatible with a wide range of instruments, including most \u003cstrong\u003etelescopes, binoculars, spotting scopes, monoculars, and microscopes\u003c\/strong\u003e, as long as their eyepiece has an outer diameter between 29mm and 45mm. It is not designed for use with riflescopes.\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\u003eCompatible Optics\u003c\/td\u003e\n\u003ctd\u003eTelescopes, Binoculars, Spotting Scopes, Monoculars and Microscopes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Clamp Style\u003c\/td\u003e\n\u003ctd\u003eThumb screw Hex shape\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Clamp Range\u003c\/td\u003e\n\u003ctd\u003e29mm - 45mm (1.14\" - 1.77\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhone Clamp Style\u003c\/td\u003e\n\u003ctd\u003eThumb screw adjusting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhone Clamp Range\u003c\/td\u003e\n\u003ctd\u003e56mm - 97mm (2.20\" – 3.81\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFine Adjustment Style\u003c\/td\u003e\n\u003ctd\u003eManually (no slow motion controls)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterials\u003c\/td\u003e\n\u003ctd\u003eCast Metal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (Closed)\u003c\/td\u003e\n\u003ctd\u003e177.8mm x 101.6mm x 38.1mm (7\" x 4\" x 1.5\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e6 oz (170.1 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSolar Warning\u003c\/td\u003e\n\u003ctd\u003eNever use without a proper solar filter. See manual for details.\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 Basic Smartphone Adapter, 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":44967142261021,"sku":"CEL-81035","price":29.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Celestron-Basic-Smartphone-Adapter-1-25-inch-81035-1__15283.1594229162.1280.1280.jpg?v=1684337055"},{"product_id":"celestron-nexyz-3-axis-universal-smartphone-adapter","title":"Celestron NexYZ 3-Axis Universal Smartphone Adapter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003ePatented 3-axis rack and pinion smartphone alignment\u003c\/li\u003e\n\u003cli\u003eFits eyepieces from 35mm to 60mm in diameter\u003c\/li\u003e\n\u003cli\u003eIncludes adapters to fit microscope eyepieces down to 25mm\u003c\/li\u003e\n\u003cli\u003eAccommodates smartphones 65mm to 90mm wide\u003c\/li\u003e\n\u003cli\u003eDurable cast metal and fiber-reinforced plastic construction\u003c\/li\u003e\n\u003cli\u003eLightweight at just 10 oz (283 g)\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 NexYZ 3-Axis Universal Smartphone Adapter\u003c\/h2\u003e\n\u003cp\u003eThe Celestron NexYZ 3-Axis Universal Smartphone Adapter transforms your smartphone into a powerful imaging tool for nearly any optical instrument. Its patented 3-axis adjustment system provides precise control, while the robust clamps accommodate eyepieces from 25mm to 60mm and phones from 65mm to 90mm wide. Weighing just 10 oz, the NexYZ delivers the stability and precision needed to capture sharp images of everything from lunar craters to microscopic specimens.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePatented 3-Axis Adjustment: X, Y, and Z Rack \u0026amp; Pinion Control\u003c\/h3\u003e\n\u003cp\u003eThe core of the NexYZ is its patented three-axis motion control system. While standard adapters only allow for side-to-side (X) and vertical (Y) adjustments, the NexYZ adds a crucial third Z-axis. This allows you to control the distance of your phone's camera from the eyepiece, which is the key to eliminating vignetting and achieving a full, uncropped field of view. The smooth rack and pinion knobs for all three axes enable you to perfectly center your phone's camera over the eyepiece with micrometer-like precision.\u003c\/p\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: Clamps Optics from 25mm to 60mm in Diameter\u003c\/h3\u003e\n\u003cp\u003eEngineered for maximum compatibility, the NexYZ securely attaches to a vast range of optics. The spring-loaded eyepiece clamp has a native range of 35mm to 60mm, covering all standard 1.25\" and 2\" telescope eyepieces, as well as most binoculars and spotting scopes. For smaller optics, the two included adapter rings allow the clamp to grip eyepieces as small as 25mm, making it fully compatible with standard microscopes for digiscoping applications.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhone Clamp Range (65mm - 90mm):\u003c\/strong\u003e The phone platform easily accommodates today's largest smartphones, often with their cases still on.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Hold:\u003c\/strong\u003e A strong internal spring and threaded twist lock on the phone clamp ensure that even heavy devices remain securely in place during use.\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\u003eBuilt for the Field: 10 oz Body with Secure Smartphone Grip\u003c\/h3\u003e\n\u003cp\u003eThe NexYZ is designed for fast, repeatable use in any environment. The entire alignment process—from attaching the phone to centering it on the eyepiece—is remarkably quick and intuitive. This makes it ideal for group settings like star parties or birdwatching outings, where multiple people can swap their phones in and out in seconds with only minor readjustments needed. At only 10 oz (283 g), it adds minimal weight to your setup, and its durable construction of cast metal and fiber-reinforced plastic ensures it can stand up to rigorous field 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\u003eNexYZ 3-Axis vs. 2-Axis Adapters: The Z-Axis Advantage\u003c\/h3\u003e\n\u003cp\u003eThe critical difference between the NexYZ and other adapters is the Z-axis knob. Standard 2-axis adapters force you to rely on guesswork to position your phone at the correct distance from the eyepiece, often resulting in frustrating vignetting (a black circle around your image). The NexYZ solves this problem entirely.\u003c\/p\u003e\n\u003cp\u003eWith the Z-axis control, you can precisely move the camera toward or away from the lens until the entire illuminated field of view fills your screen. This patented feature removes the final barrier to achieving consistently sharp, well-framed images and video through your optic, providing a level of control that two-axis systems cannot match.\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 Celestron NexYZ different from cheaper smartphone adapters?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe key difference is the \u003cstrong\u003epatented 3-axis adjustment\u003c\/strong\u003e. Most adapters only offer X and Y (side-to-side and up-down) controls. The NexYZ adds a crucial Z-axis, allowing you to adjust the distance from the eyepiece. This third axis is what lets you eliminate vignetting (the black ring around your image) and achieve a perfectly framed shot.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the NexYZ securely hold my large phone, like an iPhone Plus or Samsung Galaxy?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The phone clamp extends from \u003cstrong\u003e65mm to 90mm (2.55\" to 3.54\")\u003c\/strong\u003e, accommodating most large \"phablet\" style phones. The combination of a strong internal spring and a threaded twist lock provides a secure grip that can easily support the weight of these heavier devices.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need to remove my phone case to use the NexYZ?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor most standard cases, you do not need to remove them. However, if you use an exceptionally bulky case, such as a folio-style or one with a large integrated battery pack, you may need to remove it for the phone to fit properly in the clamp.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Celestron NexYZ with my 8\" SCT to photograph Jupiter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The NexYZ's eyepiece clamp range of \u003cstrong\u003e35mm to 60mm\u003c\/strong\u003e fits both 1.25\" and 2\" eyepieces used on Schmidt-Cassegrain telescopes. The precise rack and pinion controls are ideal for centering a small target like Jupiter in the camera's field of view to capture both still images and video.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI lead birdwatching walks. Is the NexYZ practical for sharing views through a spotting scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe NexYZ is perfect for this scenario. Its quick-release, spring-loaded phone clamp makes it incredibly fast to swap different smartphones. After the initial setup on the spotting scope's eyepiece, each person can attach their phone and make minor X\/Y adjustments in seconds to capture their own photo of the view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the NexYZ be used with microscopes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The NexYZ includes \u003cstrong\u003etwo adapter rings\u003c\/strong\u003e that reduce the minimum clampable diameter to \u003cstrong\u003e25mm (0.98\")\u003c\/strong\u003e. This allows it to securely attach to standard microscope eyepieces, making it a versatile tool for both astrophotography and microphotography (digiscoping).\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\u003eCompatible Optics\u003c\/td\u003e\n\u003ctd\u003eTelescopes, Binoculars, Spotting Scopes, Monoculars, Microscopes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Clamp Range\u003c\/td\u003e\n\u003ctd\u003e35mm - 60mm (1.37\" - 2.36\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMin. Eyepiece Size (w\/ Adapters)\u003c\/td\u003e\n\u003ctd\u003e25mm (0.98\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhone Clamp Range\u003c\/td\u003e\n\u003ctd\u003e65mm - 90mm (2.55\" - 3.54\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustment Mechanism\u003c\/td\u003e\n\u003ctd\u003e3-Axis (X, Y, Z) Rack and Pinion System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterials\u003c\/td\u003e\n\u003ctd\u003eCast Metal, Fiber-Reinforced Plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e10 oz (283 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (Closed)\u003c\/td\u003e\n\u003ctd\u003e165.1mm x 139.7mm x 107.95mm (6.50\" x 5.50\" x 4.25\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSolar Warning\u003c\/td\u003e\n\u003ctd\u003eNever look at the Sun with an optic without a proper solar filter. Refer to included safety instructions.\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 NexYZ 3-Axis Universal Smartphone Adapter\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/1242199205_1.jpg?v=1684346765\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eNexYZ 3-Axis Universal Smartphone Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cimg class=\"DAV-img-box\" alt=\"Adapter rings for microscope eyepieces\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/celestron-nexyz-microscope-adapter-rings.jpg?v=1782186855\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eAdapters for Microscope Eyepieces\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/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 \u0026amp; Manuals\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":44967142654237,"sku":"CEL-81055","price":93.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Celestron-NexYZ-3-Axis-Universal-Smartphone-Adapter-81055-1__11807.1594230228.1280.1280.jpg?v=1684337083"},{"product_id":"celestron-oxygen-iii-narrowband-filter-1-25-in","title":"Celestron Oxygen III Narrowband Filter - 1.25 in","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eIsolates doubly-ionized oxygen lines (496nm and 501nm)\u003c\/li\u003e\n\u003cli\u003eProvides extreme contrast for planetary and emission nebulae\u003c\/li\u003e\n\u003cli\u003eBlocks the entire visual spectrum from 400nm to 700nm\u003c\/li\u003e\n\u003cli\u003eUltra-hard, vacuum-deposited coatings prevent halos on bright stars\u003c\/li\u003e\n\u003cli\u003eStandard 1.25\" threaded barrel\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 Oxygen III Narrowband Filter - 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe Celestron Oxygen III Narrowband Filter for 1.25\" eyepieces isolates the critical 496nm and 501nm wavelengths emitted by planetary and emission nebulae, delivering a dramatic increase in contrast. By aggressively blocking the rest of the visual spectrum from 400nm to 700nm, this filter renders the sky background nearly black, allowing the faint, detailed structures of nebulae to become visible. Its ultra-hard, vacuum-deposited coatings are engineered to eliminate the unnatural colored halos around bright stars that can compromise views with less advanced filters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIsolating the 496nm \u0026amp; 501nm OIII Lines for Maximum Contrast\u003c\/h3\u003e\n\u003cp\u003eMany of the most sought-after celestial objects, including the Veil, Ring (M57), and Orion (M42) nebulae, radiate strongly in the green-blue light of doubly-ionized oxygen (OIII). This filter acts as a gateway, passing only these two specific spectral lines at 496nm and 501nm. This narrowband approach rejects light pollution, natural skyglow, and even the light from surrounding stars, causing faint nebular structures to stand out with striking clarity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAdvanced Coatings: Blocking the 400-700nm Spectrum to Eliminate Halos\u003c\/h3\u003e\n\u003cp\u003eA common issue with inferior nebula filters is the appearance of bright, colored halos around stars, an artifact of imprecise coating technology. Celestron's OIII filter uses ultra-hard, vacuum-deposited coatings that provide complete rejection of the visual spectrum from 400nm to 700nm outside the narrow OIII bandpass. This careful engineering ensures that bright stars remain tight, point-like sources without distracting artifacts, preserving the natural beauty of the starfield.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCelestron OIII vs. UHC Filters: Choosing the Right Tool for the Target\u003c\/h3\u003e\n\u003cp\u003eAn OIII filter is a specialist's tool, while a UHC (Ultra High Contrast) filter is a generalist. The Celestron OIII provides the highest possible contrast on objects that are rich in Oxygen-III emissions, like the Dumbbell Nebula (M27) or the Crescent Nebula (NGC 6888). A UHC filter has a broader bandpass that also includes Hydrogen-Beta light, making it useful on a wider variety of nebulae but with less pronounced contrast on OIII-specific targets. For revealing the faintest details in planetary nebulae, the OIII is the superior choice.\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 Celestron Oxygen III 1.25\" filter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary purpose is to dramatically increase the contrast of specific celestial objects—namely \u003cstrong\u003eplanetary and emission nebulae\u003c\/strong\u003e—by isolating the two wavelengths of light (496nm and 501nm) they predominantly emit. This makes faint details, like the filaments in the Veil Nebula, much easier to see, especially from light-polluted locations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will the Celestron OIII filter improve my view of the Orion Nebula (M42) in an 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn an 8\" Schmidt-Cassegrain Telescope, the Celestron OIII filter will suppress the brightness of the Trapezium stars at the core of the Orion Nebula (M42), reducing glare and revealing the delicate, interwoven structures of the surrounding gas clouds. You'll be able to trace the intricate loops and wisps of nebulosity that are normally overwhelmed by the brilliance of the central stars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I see the Ring Nebula (M57) from my suburban backyard with this OIII filter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the Ring Nebula (M57) is an excellent target for this filter. From a suburban location, the filter will darken the bright sky background, making the \"donut\" shape of the nebula pop into view with much greater contrast. It will also make it easier to detect the faint central star under steady seeing conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this filter make stars disappear?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe filter will significantly dim most stars, which is intentional. Stars emit light across the entire spectrum, and the filter blocks almost all of it. This dimming effect is what enhances the contrast of the nebula, which shines brightly in the specific OIII wavelengths that the filter transmits.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Celestron OIII filter useful for viewing galaxies?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this filter is not recommended for galaxies. Galaxies like Andromeda (M31) are broadband objects, meaning they emit light across the entire visible spectrum. An OIII filter would block almost all of that light, making the galaxy invisible or extremely dim. For galaxies, a light pollution reduction (LPR) filter or no filter is best.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Celestron 1.25\" OIII filter for astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile designed for visual use, this filter can be used for imaging, particularly with monochrome cameras. It serves as the \"O\" in an \"SHO\" (Hubble palette) image, isolating the Oxygen-III data. For color cameras, a multi-bandpass filter is often a more efficient choice, but this filter will work to capture OIII signal.\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\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eNarrowband Interference Filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesignation\u003c\/td\u003e\n\u003ctd\u003eOxygen-III (OIII)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Bandpass\u003c\/td\u003e\n\u003ctd\u003e496nm and 501nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlocking Range\u003c\/td\u003e\n\u003ctd\u003e400nm - 700nm (full visual spectrum outside of bandpass)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eUltra-hard, multi-layer, vacuum-deposited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThreads\u003c\/td\u003e\n\u003ctd\u003eStandard 1.25\" filter threads (M28.5 x 0.6)\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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCelestron Oxygen III Narrowband Filter - 1.25\"\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eProtective Plastic 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":44967149338909,"sku":"CEL-93623","price":132.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-Oxygen-III-Narrowband-Filter-1-25-in-93623-1__27739.1594230265.1280.1280.jpg?v=1684337235"},{"product_id":"celestron-oxygen-iii-narrowband-filter-2-in","title":"Celestron Oxygen III Narrowband Filter - 2 in","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eIsolates the 496nm and 501nm Oxygen III wavelengths\u003c\/li\u003e\n\u003cli\u003eBlocks the entire visual spectrum from 400nm to 700nm\u003c\/li\u003e\n\u003cli\u003eUltra-hard, vacuum-deposited coatings prevent halos\u003c\/li\u003e\n\u003cli\u003eStandard 2\" filter threads\u003c\/li\u003e\n\u003cli\u003e2-Year 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\u003eCelestron Oxygen III Narrowband Filter - 2\"\u003c\/h2\u003e\n\u003cp\u003eThe Celestron Oxygen III Narrowband Filter - 2\" is engineered to pass only the critical 496nm and 501nm wavelengths characteristic of doubly-ionized oxygen. By aggressively blocking the rest of the visual spectrum from 400nm to 700nm, it creates extreme contrast for viewing and imaging planetary and emission nebulae. This filter comes with a 2-Year Warranty, ensuring its advanced coatings perform session after 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\u003eIsolating the 496nm \u0026amp; 501nm OIII Signal\u003c\/h3\u003e\n\u003cp\u003eThe faint, intricate structures within emission nebulae like the Veil Nebula or the Crescent Nebula are revealed primarily through the light of excited oxygen atoms. This filter isolates just the two OIII emission lines at 496nm and 501nm, effectively turning off the light from other sources, including light pollution and even the stars themselves. The result is a dramatic increase in contrast, allowing the delicate filaments and shells of these objects to stand out against a truly black sky background.\u003c\/p\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 400-700nm Stoplight for Unwanted Star Halos\u003c\/h3\u003e\n\u003cp\u003eUnlike simpler filters, the Celestron OIII uses ultra-hard, vacuum-deposited coatings to block the entire visual spectrum from 400nm to 700nm. This meticulous approach to light suppression does more than just darken the sky—it eliminates the unnatural, colored halos that can appear around bright stars in less sophisticated designs. Your starfields remain sharp and natural, ensuring the nebula, not distracting artifacts, is the focus of your view.\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 Celestron 2\" OIII filter improve views of the Veil Nebula?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Veil Nebula is a classic supernova remnant that shines almost exclusively in Oxygen III and Hydrogen-alpha light. By isolating the OIII lines at \u003cstrong\u003e496nm and 501nm\u003c\/strong\u003e, this filter dramatically darkens the sky background, making the faint, thread-like filaments of the nebula appear significantly brighter and more detailed, even from moderately light-polluted skies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Celestron Oxygen III filter for imaging the Orion Nebula (M42) from my backyard?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is an excellent application for the filter. The core of the Orion Nebula is rich in OIII emission. Using the Celestron OIII filter will help you capture the intricate details within the Trapezium region and the surrounding nebulosity by rejecting broadband light pollution and reducing the overwhelming brightness of the nebula's stars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Celestron OIII filter help me see galaxies or star clusters?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this filter is not designed for broadband targets like galaxies and star clusters. These objects emit light across the entire visual spectrum. The OIII filter will block almost all of their light, making them extremely dim or completely invisible. It is a specialized tool exclusively for emission and planetary nebulae.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of blocking the spectrum from 400nm to 700nm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis comprehensive blocking ensures maximum contrast by eliminating all sources of visual light except for the targeted OIII wavelengths. A key benefit of this design is the prevention of bloated stars and colored halos, which can occur when filters have \"leaks\" or less precise cutoff points, leading to cleaner and more aesthetically pleasing astrophotos.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Celestron 2\" OIII filter threaded for standard eyepieces and accessories?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The Celestron Oxygen III Narrowband Filter - 2\" is housed in a standard 2-inch cell with M48x0.75 threads. It will screw directly into the barrel of any 2\" eyepiece, diagonal, or imaging accessory that accepts standard 2\" filters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy are there two passbands at 496nm and 501nm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eDoubly-ionized oxygen naturally emits light at both of these very close wavelengths. A high-quality OIII filter is designed to pass both lines to maximize the signal gathered from the nebula, resulting in a brighter and more detailed image than a filter that might only capture one.\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\u003eFilter Size\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Wavelengths\u003c\/td\u003e\n\u003ctd\u003e496nm \u0026amp; 501nm (Doubly-ionized Oxygen)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlocking Range\u003c\/td\u003e\n\u003ctd\u003e400nm - 700nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eUltra-hard, multi-layer, vacuum-deposited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThreads\u003c\/td\u003e\n\u003ctd\u003eM48x0.75\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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCelestron Oxygen III Narrowband Filter - 2\"\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\/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":44967149371677,"sku":"CEL-93624","price":174.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-Oxygen-III-Narrowband-Filter-2-in-93624-1__08282.1594230265.1280.1280.jpg?v=1684337236"},{"product_id":"celestron-uhc-lpr-filter-1-25","title":"Celestron UHC\/LPR Filter - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eSelectively blocks mercury vapor, sodium vapor, and natural sky glow\u003c\/li\u003e\n\u003cli\u003eAchieves over 97% transmission of critical nebula emission lines\u003c\/li\u003e\n\u003cli\u003eFeatures a moderate 60nm passband for natural views with high contrast\u003c\/li\u003e\n\u003cli\u003eEfficient H-Alpha passband at 656nm for astrophotography\u003c\/li\u003e\n\u003cli\u003eSized for standard 1.25\" eyepieces 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\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 UHC\/LPR Filter - 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe Celestron UHC\/LPR Filter for 1.25\" eyepieces delivers a dramatic increase in contrast by achieving over 97% transmission of key nebula wavelengths while suppressing common light pollution. Its 60nm passband provides a significant boost for telescopes in the 4\" to 11\" aperture range, darkening the sky without eliminating background star fields. This filter also includes an efficient H-Alpha passband at 656nm, making it a valuable tool for both visual observers and imagers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBlocking Unwanted Light with \u0026gt;97% Transmission\u003c\/h3\u003e\n\u003cp\u003eThis Ultra High Contrast (UHC) filter is engineered to isolate and reject specific wavelengths associated with urban skyglow—primarily from mercury and sodium-vapor streetlights—and the neutral oxygen that causes natural sky glow. While aggressively blocking these sources, the advanced multi-layer dielectric coatings allow more than 97% of the light from emission nebulae to pass through. The result is a significantly darker background sky, making faint structures in objects like the Orion Nebula (M42) or Lagoon Nebula (M8) pop into view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIonbeam-Hardened Durability for 1.25\" Barrels\u003c\/h3\u003e\n\u003cp\u003eCelestron employs plasma-assisted, Ionbeam-hardened coatings on the UHC\/LPR filter, creating an optical surface that is highly resistant to scratching and degradation from cleaning and environmental exposure. This modern coating technology ensures the filter's high transmission and sharp cutoffs are maintained for years of use. The precisely machined 1.25\" aluminum cell threads smoothly onto standard eyepieces, diagonals, and camera nosepieces without binding.\u003c\/p\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 60nm Passband Optimized for Nebulae\u003c\/h3\u003e\n\u003cp\u003eThe filter's 60nm passband strikes a critical balance, offering a major contrast enhancement while maintaining a more natural-feeling view compared to ultra-narrowband filters. This moderate bandwidth allows enough of the stellar continuum through to keep star fields rich, which is especially appreciated by users of 4\" to 11\" telescopes. For imagers, the inclusion of the critical 656nm H-Alpha line means you can capture vital hydrogen-alpha data without needing a separate, dedicated filter.\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 will the Celestron UHC\/LPR 1.25\" filter improve my view of the Orion Nebula (M42) from the city?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFrom a light-polluted location, the Celestron UHC\/LPR filter will dramatically darken the greyish background sky, increasing the contrast between the nebula and its surroundings. This allows you to see fainter, extended structures in M42's outer wings and resolve more detail within the bright core of the Trapezium that would otherwise be washed out by city lights.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this 1.25\" filter a good choice for my 8\" Schmidt-Cassegrain telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. Telescopes in the 4\" to 11\" range benefit significantly from this filter. On an 8\" SCT, the UHC\/LPR filter will provide a substantial contrast boost on emission and planetary nebulae without making the image too dim, preserving the brightness advantage of your telescope's aperture.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between this Celestron UHC\/LPR filter and a broadband filter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA UHC (Ultra High Contrast) filter like this one has a narrower passband (around 60nm) than a typical broadband or \"minus-violet\" filter. It more aggressively targets specific light pollution lines, resulting in a darker sky background and noticeably higher contrast on emission nebulae. Broadband filters offer a more subtle effect with a more natural color balance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Celestron UHC\/LPR filter for astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this filter is designed for both visual and imaging use. Its key advantage for imagers is the inclusion of an efficient H-Alpha passband at 656nm, allowing you to capture crucial red nebulosity with a color camera in a single shot, which many LPR filters block.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this filter help me see galaxies better?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this filter is not recommended for galaxies. Galaxies are broadband objects, meaning they emit light across the entire visible spectrum. A UHC\/LPR filter works by blocking parts of that spectrum, which will dim the view of the galaxy as much as it dims the light pollution. It is designed specifically for emission nebulae.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat specific types of artificial light does the UHC\/LPR filter block?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe filter is designed to combat the most common sources of urban light pollution. This includes \u003cstrong\u003emercury vapor lights\u003c\/strong\u003e, \u003cstrong\u003ehigh-pressure sodium vapor lights\u003c\/strong\u003e, and \u003cstrong\u003elow-pressure sodium vapor lights\u003c\/strong\u003e. It also reduces the effects of natural \u003cstrong\u003esky glow\u003c\/strong\u003e caused by neutral oxygen emission.\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\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eUHC\/LPR (Ultra High Contrast \/ Light Pollution Reduction)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak Transmission\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;97%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePassband\u003c\/td\u003e\n\u003ctd\u003e60nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eH-Alpha Passband\u003c\/td\u003e\n\u003ctd\u003e656nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eMulti-layer dielectric, plasma assisted, Ionbeam hardened\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Aperture\u003c\/td\u003e\n\u003ctd\u003e4\" - 11\" (102mm - 280mm)\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 UHC\/LPR Filter - 1.25\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/F7424-A_uhc_lpr_filter_125_1.jpg?v=1680126759\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eUHC\/LPR Filter - 1.25\"\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cimg class=\"DAV-img-box\" alt=\"Protective case for 1.25-inch filter\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/zwo-1-25-inch-filter-case.jpg?v=1782035905\"\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\/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":44967149404445,"sku":"CEL-94123","price":132.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-UHC-LPR-Filter-1-25-in-94123-1__39582.1594230266.1280.1280.jpg?v=1684337240"},{"product_id":"celestron-uhc-lpr-filter-2","title":"Celestron UHC\/LPR Filter - 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eSelectively blocks light pollution from mercury and sodium vapor lights\u003c\/li\u003e\n\u003cli\u003eAchieves over 97% light transmission for maximum brightness\u003c\/li\u003e\n\u003cli\u003e60nm bandpass enhances nebula contrast while maintaining natural star fields\u003c\/li\u003e\n\u003cli\u003eOptimized for 2\" focusers and accessories\u003c\/li\u003e\n\u003cli\u003eIonbeam-hardened coatings for scratch resistance and durability\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 UHC\/LPR Filter - 2\"\u003c\/h2\u003e\n\u003cp\u003eThe Celestron UHC\/LPR Filter for 2\" eyepieces dramatically increases contrast by selectively blocking artificial light pollution and natural sky glow, achieving over 97% transmission of critical nebula wavelengths within its 60nm passband. Optimized for telescopes from 4\" to 11\" in aperture, it darkens the sky background and includes a specific passband for the 656nm H-Alpha line, making faint emission structures visible from the city or deep-sky sites.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBlocking Key Light Pollution Lines in 4\" to 11\" Telescopes\u003c\/h3\u003e\n\u003cp\u003eThis Ultra High Contrast (UHC) filter is engineered to reject the specific wavelengths produced by mercury vapor, high and low-pressure sodium vapor lights, and the neutral oxygen emission that causes natural sky glow. By eliminating this unwanted light, the background sky appears significantly darker, allowing the faint light from emission nebulae to stand out. This targeted rejection is effective in telescopes from 4\" to 11\" in aperture, where maximizing every photon is critical.\u003c\/p\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 60nm Passband Delivering \u0026gt;97% Peak Transmission\u003c\/h3\u003e\n\u003cp\u003eThe filter's design centers on a moderately wide 60nm passband, which allows it to boost nebula contrast without sacrificing a natural-looking star field. Within this window, advanced multi-layer dielectric coatings achieve a peak transmission of over 97%. This high efficiency ensures that views remain bright and detailed, preventing the dimming effect that can occur with less advanced filters and making it an ideal choice for smaller 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\u003eHardened Coatings and a 656nm H-Alpha Passband for Imagers\u003c\/h3\u003e\n\u003cp\u003eCelestron utilizes plasma-assisted and Ionbeam-hardened coatings, creating a durable, scratch-resistant surface that withstands regular use and cleaning. For astrophotographers, the filter's design is especially valuable as it includes an efficient passband for the critical H-Alpha emission line at 656nm. This allows DSLR and color camera users to capture the deep reds of hydrogen-rich nebulae that are often lost in city 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\u003eUHC\/LPR vs. Standard Broadband Filters: A Clear Contrast Advantage\u003c\/h3\u003e\n\u003cp\u003eCompared to a typical broadband Light Pollution Reduction (LPR) filter, the Celestron UHC\/LPR provides a noticeable improvement in contrast on emission and planetary nebulae. While a broadband filter offers a more general reduction of light pollution, the UHC design more aggressively targets specific nuisance wavelengths.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSky Background:\u003c\/strong\u003e The sky view through the UHC\/LPR is significantly darker, making it easier to detect the faint, extended structures of objects like the Veil Nebula (NGC 6960).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNebula Detail:\u003c\/strong\u003e Emission nebulae appear more defined and \"pop\" from the background, revealing subtle shadings and structures that are washed out with a less selective filter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNatural View:\u003c\/strong\u003e The 60nm passband is wide enough to maintain relatively natural star colors, avoiding the heavy color cast associated with extremely narrow \"line\" filters.\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 Celestron UHC\/LPR and a standard broadband filter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Celestron \u003cstrong\u003eUHC\/LPR (Ultra High Contrast\/Light Pollution Reduction)\u003c\/strong\u003e filter has a narrower passband (around 60nm) that more aggressively isolates the key wavelengths from emission nebulae while strongly rejecting light pollution. A standard broadband filter has a wider passband, resulting in a brighter but lower-contrast image. The UHC design produces a darker sky background and makes nebulae stand out more distinctly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Celestron UHC\/LPR filter only for viewing nebulae?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile its primary purpose is to enhance emission, planetary, and reflection nebulae, it is not strictly limited to them. The filter can help darken the sky background and improve contrast on any deep-sky object, though the effect will be most dramatic on nebulae. It is not recommended for viewing galaxies or star clusters, as it will dim these objects without providing a significant contrast benefit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this filter help me see the Orion Nebula (M42) from my suburban backyard with an 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. An 8\" SCT is an excellent instrument for this filter. The Celestron UHC\/LPR will significantly darken the washed-out suburban sky, dramatically improving the contrast of the Orion Nebula (M42). You will be able to see more of the faint, extended nebulosity and potentially resolve more detail within the Trapezium region.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a 6\" Newtonian at a dark sky site. Is the Celestron UHC\/LPR filter still useful?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, even at a dark sky site, this filter is very effective. It works by blocking natural sky glow in addition to artificial light pollution. By using the filter on objects like the Lagoon Nebula (M8) or the Swan Nebula (M17), you will see a noticeable increase in contrast, making the nebulosity appear more detailed and defined against the blackness of space.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Celestron 2\" UHC\/LPR filter suitable for astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is well-suited for imaging with color cameras like DSLRs or dedicated astronomy cameras. The filter's broader 60nm bandpass retains good star color, and its efficient transmission of the H-Alpha wavelength at 656nm is crucial for capturing the red emission regions in many popular deep-sky targets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I attach and use the 2\" UHC\/LPR filter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Celestron 2\" UHC\/LPR filter has standard 2\" filter threads (M48x0.75). It can be threaded directly onto the barrel of any 2\" eyepiece or onto a 2\" nosepiece for a camera. Simply screw it on until it is finger-tight and insert the eyepiece or camera into your telescope's focuser as usual.\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\u003eFilter Size\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eUHC\/LPR (Ultra High Contrast \/ Light Pollution Reduction)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak Transmission\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;97%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePassband\u003c\/td\u003e\n\u003ctd\u003e60nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eH-Alpha Passband\u003c\/td\u003e\n\u003ctd\u003e656nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eMulti-layer dielectric, Ionbeam hardened\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Telescopes\u003c\/td\u003e\n\u003ctd\u003e4\" - 11\" aperture\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 UHC\/LPR Filter - 2\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/celestron-uhc-lpr-filter-2.jpg?v=1782200231\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eUHC\/LPR Filter - 2\"\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=\"Protective Plastic Case for 2-inch Filter\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/2-inch-filter-case.jpg?v=1782200231\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eProtective Plastic 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 Celestron 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\n\u003cp\u003eThis product is covered by Celestron's 2-Year Limited Warranty. For more details, please visit the \u003ca href=\"https:\/\/davidastro.com\/pages\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron Warranty Policy\u003c\/a\u003e page.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967149437213,"sku":"CEL-94124","price":174.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-UHC-LPR-Filter-2-in-94124-1__66083.1594230267.1280.1280.jpg?v=1684337242"},{"product_id":"sky-watcher-evoguide-50dx-apo-refractor","title":"Sky-Watcher Evoguide 50DX APO Refractor","description":"\u003c!-- more --\u003e\u003cp\u003eThe EvoGuide 50DX Apo Guide Scope Astrograph takes Sky-Watcher's doublet design and packages it in a lightweight guide scope. These doublet refractors deliver dramatic, coal-black skies and faithful, contrast-rich views of planetary and deep-space phenomenon that are second to none. Mounting to your guide camera is a breeze with convenient M42 rings on the back of the scope, and a beefy single-speed focus ring helps you nail focus. Although initially designed for guide cameras, the EvoGuide 50DX Apo Guide Scope Astrograph can be used to shoot fast, low focal length astrophotography when used in conjunction with a focal reducer (not included), producing stunning wide-field images. \u003c\/p\u003e\u003cp\u003eThis package includes the EvoGuide 50DX optical tube, tube rings, a finder stalk, and a V-style mounting plate. \u003c\/p\u003e\u003ch2\u003e\u003c\/h2\u003e\u003cdiv data-custom-tab=\"\"\u003e\u003cdiv\u003e\u003c\/div\u003e\u003c\/div\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967189545245,"sku":"SW-S11174","price":520.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Sky-Watcher-Evoguide-50DX-S11174__06289.1633554136.1280.1280.jpg?v=1684338418"},{"product_id":"explore-scientific-nebula-filter-cls-1-25","title":"Explore Scientific Nebula Filter CLS - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eCity Light Suppression (CLS) Filter\u003c\/li\u003e\n\u003cli\u003eEnhances Contrast for Deep-Sky Objects\u003c\/li\u003e\n\u003cli\u003eAvailable in 1.25\" and 2\" Sizes\u003c\/li\u003e\n\u003cli\u003eIdeal for Viewing Nebulae and Galaxies\u003c\/li\u003e\n\u003cli\u003eThreads Directly into Standard Eyepieces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eExplore Scientific Nebula Filter CLS - 1.25\" \u0026amp; 2\"\u003c\/h2\u003e\n\u003cp\u003eThe Explore Scientific Nebula Filter CLS, available in standard 1.25\" and 2\" formats, is a general-purpose light pollution filter engineered to darken the sky background and significantly increase contrast on a wide range of 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\u003eBroadband Contrast Enhancement for Urban Skies\u003c\/h3\u003e\n\u003cp\u003eThis City Light Suppression (CLS) filter works by selectively blocking common wavelengths of artificial lighting, such as sodium and mercury vapor streetlights, which are the primary cause of urban skyglow. By rejecting this unwanted light while transmitting the key wavelengths emitted by deep-sky objects, the filter provides a dramatically darker sky background. This isolates faint nebulae and galaxies from the washed-out backdrop, making them easier to detect and observe.\u003c\/p\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 General-Purpose Filter for Nebulae and Galaxies\u003c\/h3\u003e\n\u003cp\u003eUnlike narrowband filters that target specific emission lines, the CLS is a broadband filter designed for versatility. It improves the view of all types of deep-sky objects, including emission nebulae like the Orion Nebula (M42), reflection nebulae, and even broadband targets like the Andromeda Galaxy (M31). This makes the Explore Scientific CLS an excellent first filter for an observer looking for a single, effective tool to combat light pollution across the celestial catalog.\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 Explore Scientific CLS filter improve views from a suburban backyard?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Explore Scientific CLS filter darkens the sky background by blocking the most common wavelengths of light pollution from streetlights. This increases the contrast between your target object and the sky, making faint details in nebulae and galaxies more visible, even from moderately light-polluted areas.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between the Explore Scientific CLS and a UHC filter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA \u003cstrong\u003eCLS (City Light Suppression)\u003c\/strong\u003e filter is a broadband filter, meaning it passes a wider range of light, making it effective on galaxies and star clusters in addition to nebulae. A \u003cstrong\u003eUHC (Ultra High Contrast)\u003c\/strong\u003e filter is a narrowband filter that passes a much smaller range of light, primarily the OIII and H-beta lines from emission nebulae. A UHC provides higher contrast on those specific targets but is less effective for broadband sources like galaxies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Explore Scientific CLS filter for astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the CLS filter is a popular choice for beginner to intermediate astrophotographers using color cameras (DSLR, Mirrorless, or One-Shot-Color astro cameras). It helps capture better data from light-polluted locations by reducing skyglow, leading to improved contrast and color balance in the final image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Explore Scientific CLS filter help me see the Orion Nebula (M42) with my 8\" Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The Orion Nebula (M42) is a bright emission nebula that responds extremely well to a CLS filter. With an 8\" telescope, the filter will darken the surrounding sky significantly, making the faint, extended wings of the nebula pop into view and revealing more structure within the bright core.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will the Explore Scientific CLS filter affect views of the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Andromeda Galaxy (M31) is a broadband target, meaning it emits light across the entire visible spectrum. The Explore Scientific CLS filter will help by dimming the skyglow around the galaxy, which can make its faint outer arms easier to trace. While it will slightly dim the galaxy itself, the contrast enhancement often results in a more detailed overall view, especially of the dust lanes near the core.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Explore Scientific CLS filter thread into all standard 1.25\" and 2\" eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Both the 1.25\" and 2\" versions of the Explore Scientific CLS filter feature standard filter threads. They are designed to screw directly into the barrel of any corresponding 1.25\" or 2\" eyepiece or accessory, such as a filter wheel or camera nosepiece.\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\u003e812257017195\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable Sizes\u003c\/td\u003e\n\u003ctd\u003e1.25\", 2\"\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":"1.25\"","offer_id":44967202554141,"sku":"ES-310225","price":153.99,"currency_code":"CAD","in_stock":true},{"title":"2\"","offer_id":44967202586909,"sku":"ES-310220-1","price":168.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Explore-Scientific-Nebula-Filter-CLS-1-25-inch-310225-1__83920.1594240362.1280.1280.jpg?v=1684338886"},{"product_id":"explore-scientific-nebula-filter-h-beta-2-0","title":"Explore Scientific Nebula Filter H-Beta - 2.0\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e2.0-inch Barrel Size\u003c\/li\u003e\n\u003cli\u003eIsolates Hydrogen-Beta (H-Beta) Emission Line\u003c\/li\u003e\n\u003cli\u003eDramatically Increases Contrast on Specific Nebulae\u003c\/li\u003e\n\u003cli\u003eBlocks Artificial Light Pollution\u003c\/li\u003e\n\u003cli\u003eStandard M48x0.75 Filter 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\u003eExplore Scientific Nebula Filter H-Beta - 2.0\"\u003c\/h2\u003e\n\u003cp\u003eThe Explore Scientific Nebula Filter H-Beta - 2.0\" is a specialized line filter designed to fit standard 2.0-inch eyepieces and filter wheels, isolating the faint hydrogen-beta emission line to reveal specific nebulae that are otherwise nearly invisible against a light-polluted sky.\u003c\/p\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 2.0-inch Filter for Hydrogen-Beta Emission\u003c\/h3\u003e\n\u003cp\u003eThis filter operates by blocking all wavelengths of light except for the narrow band corresponding to the hydrogen-beta emission line. This extreme selectivity darkens the sky background, effectively eliminating the glow from most forms of artificial lighting and allowing the faint structural details of specific nebulae to stand out with striking contrast.\u003c\/p\u003e\n\u003cp\u003eThe 2.0-inch format is critical for this filter's intended targets, which are often large and diffuse. Paired with a low-power, wide-field 2.0-inch eyepiece, you can frame these expansive objects in their entirety while gathering the maximum amount of light from your telescope's aperture.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUnveiling \"Invisible\" Nebulae: The Horsehead and California Nebula\u003c\/h3\u003e\n\u003cp\u003eWhile many filters enhance a wide range of objects, the H-Beta filter is a specialist's tool for a select list of targets that are notoriously difficult to observe. Its primary purpose is to make the impossible, possible. For visual observers, this filter is often the only way to glimpse faint nebulae that are rich in H-beta emissions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHorsehead Nebula (Barnard 33):\u003c\/strong\u003e This iconic dark nebula is nearly impossible to see visually without an H-Beta filter to enhance the faint glowing hydrogen gas (IC 434) behind it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalifornia Nebula (NGC 1499):\u003c\/strong\u003e A large, faint emission nebula in Perseus that glows almost exclusively in H-alpha and H-beta light. The H-Beta filter provides a dramatic contrast boost, making its shape discernible.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCocoon Nebula (IC 5146):\u003c\/strong\u003e Another challenging target where the H-Beta filter can help pull the faint nebulosity from the background sky.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eH-Beta vs. O-III: A Specialized Filter for Key Targets\u003c\/h3\u003e\n\u003cp\u003eAn Oxygen-III (O-III) or Ultra-High Contrast (UHC) filter is typically a better first choice for a general-purpose nebula filter, as it enhances a much broader range of objects, including planetary nebulae and the Orion Nebula (M42). The H-Beta filter is not intended to replace these.\u003c\/p\u003e\n\u003cp\u003eInstead, it complements them by excelling where they fall short. For the specific targets that emit strongly in the H-beta line, this filter provides a view that no other filter can match. It is an essential addition for the dedicated deep-sky observer looking to complete their \"life list\" of challenging celestial objects.\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 H-Beta 2.0\" filter help me see the Horsehead Nebula (Barnard 33) with my 10-inch Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. For a visual observation of the Horsehead Nebula, an H-Beta filter is considered essential. In a 10-inch telescope under dark skies, this 2.0\" filter will significantly increase the contrast of the glowing IC 434 nebula behind the dark Horsehead silhouette, giving you the best possible chance to detect it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 2.0\" H-Beta filter a good choice for imaging the California Nebula (NGC 1499)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile this filter can be used for imaging, H-Beta is a much weaker signal than Hydrogen-Alpha (H-alpha). For monochrome astrophotography, an H-alpha filter will produce superior results on the California Nebula. However, for color imaging (especially with one-shot color cameras), adding data through an H-Beta filter can help capture a more accurate color balance in the blue channel for this specific object.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need an H-Beta filter if I already have a UHC or O-III filter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eUHC and O-III filters are excellent for the vast majority of emission and planetary nebulae. However, they do not pass the H-beta line with the same efficiency. For a small but famous list of objects like the Horsehead Nebula and California Nebula, the H-Beta filter provides a significantly better view, often making the difference between seeing the object and not seeing it at all.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the Explore Scientific H-Beta filter effective against light pollution?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis filter works by isolating a very narrow portion of the light spectrum where the nebula's light is concentrated. It blocks most other wavelengths, including the common sources of light pollution like sodium and mercury vapor streetlights. This darkens the sky background, making the faint light of the nebula appear much brighter in comparison.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this 2.0\" H-Beta filter work with my specific brand of eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The Explore Scientific H-Beta filter is built in a standard 2.0-inch cell with M48x0.75 threads. This is the industry standard for 2.0\" astronomy filters and will thread into any 2.0\" eyepiece or filter wheel that has standard filter threads.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the H-Beta filter useful for any objects besides the Horsehead and California Nebulae?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile those are its primary targets, the H-Beta filter can also offer subtle enhancements on other objects. Some observers report it helps with the faint outer loops of the Veil Nebula complex in Cygnus and can bring out detail in the Flame Nebula (NGC 2024) near Alnitak. It is always worth experimenting with on various hydrogen-rich regions.\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\u003eFilter Size\u003c\/td\u003e\n\u003ctd\u003e2.0\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Emission Line\u003c\/td\u003e\n\u003ctd\u003eHydrogen-Beta (H-Beta)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThreads\u003c\/td\u003e\n\u003ctd\u003eM48x0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGTIN\u003c\/td\u003e\n\u003ctd\u003e812257017232\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 Nebula Filter H-Beta - 2.0\"\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\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":44967202783517,"sku":"ES-310230","price":251.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Explore-Scientific-Nebula-Filter-H-Beta-2-0-inch-310230-1__02827.1594240363.1280.1280.jpg?v=1684338905"},{"product_id":"qhyccd-qhy5l-ii-c-color-usb2-0","title":"QHYCCD QHY5L-II-C Color USB2.0 - Discontinued","description":"\u003c!-- more --\u003e\u003cp class=\"p1\"\u003eQHY5-II series cameras fit in a standard 1.25-inch eyepiece holder and have an adjustable location ring for confocality with an eyepiece. They are ideal for use as low-weight autoguiders. QHY5-II series cameras come in very small but powerful packages! The improved thermal design allows the heat generated by the CMOS sensor to be transferred externally to the telescope's eyepiece tube.\u003c\/p\u003e\u003cp class=\"p1\"\u003e\u003cstrong\u003eQHY5L-II\u003c\/strong\u003e\u003cspan class=\"s1\"\u003e has high sensitivity and low noise (a highlight of the QHY5-II series). With an exceptional 74% QE, the QHY5L-II's sensitivity is even better than many CCD cameras. It is said that the QHY5L-II's image quality meets or exceeds that of ICX618-based cameras. The read noise is remarkably low (as few as 4 electrons). The sensor's on-chip FPN (Fixed Pattern Noise) calibration function solves one of the major problems of CMOS technology, resulting in images that are clear and uniform, even under high gain. With these advantages, the QHY5L-II provides outstanding image quality for planetary imaging, autoguiding, deep-sky and all-sky imaging. Available in both color and monochrome versions.  The sensor has 1280 x 960 pixels at 3.75um and the camera is capable of 30 frames per second in high resolution mode, 106 FPS in VGA mode.  \u003c\/span\u003e\u003c\/p\u003e\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eSpecifications\u003c\/p\u003e\n\u003cdiv\u003e\u003ctable border=\"0\" width=\"174\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ccolgroup\u003e\u003ccol span=\"2\" width=\"87\"\u003e\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"87\" height=\"21\"\u003eSensor\u003c\/td\u003e\n\u003ctd width=\"87\"\u003eMT9M034\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"21\"\u003eTotal Pixels\u003c\/td\u003e\n\u003ctd\u003e1.2 Megapixels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"21\"\u003ePixel Size\u003c\/td\u003e\n\u003ctd\u003e3.75um\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"21\"\u003ePixel Array\u003c\/td\u003e\n\u003ctd\u003e1280 x 960\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"21\"\u003eOptical Format\u003c\/td\u003e\n\u003ctd\u003e1\/3 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"21\"\u003eFPS @ 640 x 480\u003c\/td\u003e\n\u003ctd\u003e106\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"21\"\u003eFPS @ Full Resolution\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"21\"\u003ePeak QE\u003c\/td\u003e\n\u003ctd\u003e0.74\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"21\"\u003eA\/D Resolution\u003c\/td\u003e\n\u003ctd\u003e12-bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"21\"\u003eShutter\u003c\/td\u003e\n\u003ctd\u003eElectronic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"21\"\u003eDynamic Range\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;115 dB HDR Mode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"21\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eColor 45g,  Mono 43g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eIn the Box\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/6\/assets\/description_image_QHYCCD_QHY5L_II_In_the_Box.jpeg?v=1684338349\" alt=\"QHYCCD QHY5-II-M In the Box\"\u003e\u003cdiv\u003eNote: The spacer is used to set the back focus of the CS\/C lens to correct value. The CS\/C standard backfocus is 12.5\/17.5mm. While QHY5L-II backfocus is a little short than this value (This is to guarantee the camera\/lens combination to get focus at infinite distance)\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":44967211565341,"sku":"QHY-QHY5L-II-C","price":167.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/QHYCCD-QHY5L-II-USB2-0-1__06898.1650659065.1280.1280.jpg?v=1684339015"},{"product_id":"qhyccd-qhy5l-ii-m-mono-usb2-0","title":"QHYCCD QHY5L-II-M Mono USB2.0 - Discontinued","description":"\u003c!-- more --\u003e\u003cp class=\"p1\"\u003eQHY5-II series cameras fit in a standard 1.25-inch eyepiece holder and have an adjustable location ring for confocality with an eyepiece. They are ideal for use as low-weight autoguiders. QHY5-II series cameras come in very small but powerful packages! The improved thermal design allows the heat generated by the CMOS sensor to be transferred externally to the telescope's eyepiece tube.\u003c\/p\u003e\u003cp class=\"p1\"\u003e\u003cstrong\u003eQHY5L-II\u003c\/strong\u003e\u003cspan class=\"s1\"\u003e has high sensitivity and low noise (a highlight of the QHY5-II series). With an exceptional 74% QE, the QHY5L-II's sensitivity is even better than many CCD cameras. It is said that the QHY5L-II's image quality meets or exceeds that of ICX618-based cameras. The read noise is remarkably low (as few as 4 electrons). The sensor's on-chip FPN (Fixed Pattern Noise) calibration function solves one of the major problems of CMOS technology, resulting in images that are clear and uniform, even under high gain. With these advantages, the QHY5L-II provides outstanding image quality for planetary imaging, autoguiding, deep-sky and all-sky imaging. Available in both color and monochrome versions.  The sensor has 1280 x 960 pixels at 3.75um and the camera is capable of 30 frames per second in high resolution mode, 106 FPS in VGA mode.  \u003c\/span\u003e\u003c\/p\u003e\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eSpecifications\u003c\/p\u003e\n\u003cdiv\u003e\u003ctable border=\"0\" width=\"174\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ccolgroup\u003e\u003ccol span=\"2\" width=\"87\"\u003e\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"87\" height=\"21\"\u003eSensor\u003c\/td\u003e\n\u003ctd width=\"87\"\u003eMT9M034\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"21\"\u003eTotal Pixels\u003c\/td\u003e\n\u003ctd\u003e1.2 Megapixels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"21\"\u003ePixel Size\u003c\/td\u003e\n\u003ctd\u003e3.75um\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"21\"\u003ePixel Array\u003c\/td\u003e\n\u003ctd\u003e1280 x 960\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"21\"\u003eOptical Format\u003c\/td\u003e\n\u003ctd\u003e1\/3 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"21\"\u003eFPS @ 640 x 480\u003c\/td\u003e\n\u003ctd\u003e106\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"21\"\u003eFPS @ Full Resolution\u003c\/td\u003e\n\u003ctd\u003e30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"21\"\u003ePeak QE\u003c\/td\u003e\n\u003ctd\u003e0.74\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"21\"\u003eA\/D Resolution\u003c\/td\u003e\n\u003ctd\u003e12-bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"21\"\u003eShutter\u003c\/td\u003e\n\u003ctd\u003eElectronic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"21\"\u003eDynamic Range\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;115 dB HDR Mode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"21\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eColor 45g,  Mono 43g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eIn the Box\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/t\/6\/assets\/description_image_QHYCCD_QHY5L_II_In_the_Box.jpeg?v=1684338349\" alt=\"QHYCCD QHY5-II-M In the Box\"\u003e\u003cdiv\u003eNote: The spacer is used to set the back focus of the CS\/C lens to correct value. The CS\/C standard backfocus is 12.5\/17.5mm. While QHY5L-II backfocus is a little short than this value (This is to guarantee the camera\/lens combination to get focus at infinite distance)\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":44967211630877,"sku":"QHY-100007","price":209.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/QHYCCD-QHY5L-II-USB2-0-1__33051.1650659057.1280.1280.jpg?v=1684339019"},{"product_id":"qhyccd-cfw3","title":"QHYCCD CFW3","description":"\u003c!-- more --\u003e\u003ch2\u003eThe QHYCCD 3rd-Generation Color Filter Wheel\u003c\/h2\u003e\u003cp\u003eNew ultra-thin stepper motor drive and fully automatic filter switching revolutionizes overall performance!\u003c\/p\u003e\u003ch3\u003eNew ultra-thin hyrid stepper motor drive.  \u003c\/h3\u003e\u003cp\u003eQHYCCD selected a high quality ultra-thin hybrid stepper motor for the 3rd generation filter wheel design.  Compared to the PM stepper motor used in many filter wheels, the hybrid stepper motor has higher precision, smaller step angle, and is more expensive.  The motor is enclosed to prevent dust from entering the motor, thus improving reliability and motor life.  The direction of filter rotation can be reversed: The filter carousel can be rotated clockwise or counterclockwise to complete the rotation quickly which is very convenient.The overall design is thinner.\u003c\/p\u003e\u003ch3\u003eFriction drive with zero backlash\u003c\/h3\u003e\u003cp\u003eRegarding the evolution of the motor drive, our 2nd generation filter wheels used a gear drive while this 3rd generation filter wheel uses a friction drive that results in zero backlash during operation.\u003c\/p\u003e\u003ch3\u003eUSB serial port switch.\u003c\/h3\u003e\u003cp\u003eThe serial port switch can accommodate fast switching between serial communication mode and USB communication mode. \u003c\/p\u003e\u003ch3\u003eUse the USB port to power the filter wheel. \u003c\/h3\u003e\u003cp\u003eThe filter wheel supports the QHY 4-pin connection control mode.  The firmware is open source and compatible with Arduino.  The design is compatible with the QHY-OAG (off-axis guide) for the corresponding size.\u003c\/p\u003e\u003ch3\u003eBeautiful in appearance and ingenious.\u003c\/h3\u003e\u003cp\u003eThe QHYCFW3 main body is cut from a single piece of aluminum by a precision CNC machine.  The craftsmanship and finish are exquisite.  When you hold the small design, you do not want to put it down!\u003c\/p\u003e\u003cp\u003eA specially designed filter carousel allows the installation of unmounted filters of different thicknesses. Mounted Filters below 10 mm thick can be installed and unmounted filters of different thicknesses can also be mounted on the same filter disc. Filter positioning is more precise and faster.\u003c\/p\u003e\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eSpecifications\u003c\/p\u003e\n\u003cdiv\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eThickness\u003c\/td\u003e\n\u003ctd\u003eDisk Supported\u003c\/td\u003e\n\u003ctd\u003eMaxium Filter Thickness*\u003c\/td\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\"\u003eQHYCFW3XL\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e21.5mm\u003c\/td\u003e\n\u003ctd\u003e9 position 2inch \/ 50mm round\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e10mm\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e1500g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e7 position 50mm square\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQHYCFW3L\u003c\/td\u003e\n\u003ctd\u003e21.5mm\u003c\/td\u003e\n\u003ctd\u003e7 posiition  2inch \/ 50mm round\u003c\/td\u003e\n\u003ctd\u003e10mm\u003c\/td\u003e\n\u003ctd\u003e911g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\"\u003eQHYCFW3M-SR (standard)\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e20.5mm\u003c\/td\u003e\n\u003ctd\u003e5 position 2inch \/ 50mm round\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e10mm\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e 728g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e7 position 36mm\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\"\u003eQHYCFW3M-US (thin)\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e17mm\u003c\/td\u003e\n\u003ctd\u003e5 position 2inch \/50mm round \u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e5.5mm\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e 691g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e7 position 36mm\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\"\u003eQHYCFW3S-SR (standard)\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e20mm\u003c\/td\u003e\n\u003ctd\u003e6 Position 36mm\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e10mm\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e446g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e7 Position 1.25inch\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\"\u003eQHYCFW3S-US (thin)\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e15.5mm\u003c\/td\u003e\n\u003ctd\u003e6 Position 36mm\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e5.5mm\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003e 419g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e7 Position 1.25inch\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eIn the Box\u003c\/p\u003e\n\u003cdiv\u003e\u003cdiv\u003e\u003cul\u003e\n\u003cli\u003eM42 (M) to 2-inch extension ring\u003c\/li\u003e\n\u003cli\u003e400mm oblique ring\u003c\/li\u003e\n\u003cli\u003eM3*6 screw × 6\u003c\/li\u003e\n\u003cli\u003eM4*70mm hand screw × 2\u003c\/li\u003e\n\u003cli\u003eM4*35mm hand screw × 3\u003c\/li\u003e\n\u003cli\u003eM2*4 screw × 30\u003c\/li\u003e\n\u003cli\u003eΦ2*4 red gasket × 60\u003c\/li\u003e\n\u003cli\u003eΦ3*6 red gasket × 30\u003c\/li\u003e\n\u003cli\u003eM2*6×21\u003c\/li\u003e\n\u003cli\u003eM2*3 spiral guide column × 21\u003c\/li\u003e\n\u003cli\u003eΦ3 red gasket × 21\u003c\/li\u003e\n\u003cli\u003eDIN4 to R11 filter wheel cable (optional QHY22, QHY11 series application)\u003c\/li\u003e\n\u003cli\u003eCommunication line (optional QHY9 application)\u003c\/li\u003e\n\u003cli\u003ePower splitter (optional QHY9 application)\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"QHYCCD","offers":[{"title":"QHYCFW3S-US (Thin) 7 x 1.25\"","offer_id":44967211663645,"sku":"QHY-110040","price":391.0,"currency_code":"CAD","in_stock":true},{"title":"QHYCFW3S-SR (Standard) 7 x 1.25\"","offer_id":44967211696413,"sku":"QHY-110038","price":391.0,"currency_code":"CAD","in_stock":true},{"title":"QHYCFW3M-US (Thin) 7 x 36mm","offer_id":44967211729181,"sku":"QHY-110045","price":489.0,"currency_code":"CAD","in_stock":true},{"title":"QHYCFW3M-US (Thin) 5 x 2\"","offer_id":49560224039197,"sku":"QHY-110045-5x2","price":489.0,"currency_code":"CAD","in_stock":true},{"title":"QHYCFW3L 7 x 2\"","offer_id":44967211761949,"sku":"QHY-110047","price":867.0,"currency_code":"CAD","in_stock":true},{"title":"QHYCFW3XL 9 x 2\"","offer_id":44967211794717,"sku":"QHY-110048-9x2","price":1679.0,"currency_code":"CAD","in_stock":true},{"title":"QHYCFW3M-SR (Standard) 5 x 2\"","offer_id":44967211827485,"sku":"QHY-110041-5x2","price":489.0,"currency_code":"CAD","in_stock":true},{"title":"QHYCFW3M-SR (Standard) 5 x 50mm","offer_id":44967211893021,"sku":"QHY-110041-5x50","price":489.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/QHYCCD-CFW3-1__46276.1595653760.1280.1280.jpg?v=1684339028"},{"product_id":"qhyccd-qhy5iii290m-mono","title":"QHYCCD QHY5III290M Mono","description":"\u003c!-- more --\u003e\u003ch2\u003eFull HD Back-illuminated, Ultra-low Read Noise CMOS Camera\u003c\/h2\u003e\u003cp\u003eThe QHY5-III series cameras are USB3 super-speed cameras and guiders.  They can be used in a standard 1.25-inch eyepiece holder and have an adjustable location ring for confocality with an eyepiece.  All QHY5III series cameras come in a very small but powerful package!\u003c\/p\u003e\u003cp\u003eThe QHY5III290 uses the SONY STARVIS Exmor R back-illuminated CMOS sensor.  STARVIS means you can see very dim stars in real time video. The QHY5III290 can capture magnitude 9 stars with a 50mm F\/1.4 C-mount lens.  Compared to the IMX236 sensor, for example, the IMX290 has twice sensitivity for visible light and three or more times the sensitivity in near infrared.  The QHY5III290 also has ultra low read noise.  The back-illumination and low read noise make this camera an ideal video astronomy camera.  The small 2.9um pixel size is also ideal for planetary imaging.  The QHY5III290 has a fast USB 3.0 interface and produces 135FPS at full HD output . The camera has 10\/12-bit ADC and it outputs an 8-bit or 12-bit image.  Available in both mono (QHY5III290M) and color (QHY5III290C) versions.\u003c\/p\u003e\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eSpecifications\u003c\/p\u003e\n\u003cdiv\u003e\u003ctable border=\"0\" width=\"483\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ccolgroup\u003e\n\u003ccol width=\"212\"\u003e\n\u003ccol width=\"271\"\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"212\" height=\"21\"\u003eModel\u003c\/td\u003e\n\u003ctd width=\"271\"\u003eQHY5III290\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"212\" height=\"21\"\u003eCMOS Sensor\u003c\/td\u003e\n\u003ctd width=\"271\"\u003eIMX290（BSI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"212\" height=\"21\"\u003ePixel Size\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e2.9um\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"212\" height=\"21\"\u003ePixel Array\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e1920*1080\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"212\" height=\"21\"\u003eEffective Pixels\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e1.2 Megapixels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"212\" height=\"21\"\u003eSensor Optical Format\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e1\/2.8-inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"212\" height=\"21\"\u003eFrame Rate@Full Frame\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e135FPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"4\" width=\"212\" height=\"81\"\u003eFrame rate @ROI readout\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e220FPS@\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd width=\"271\" height=\"20\"\u003e960*540    \u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd width=\"271\" height=\"20\"\u003e460FPS@\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd width=\"271\" height=\"21\"\u003e480*270\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"212\" height=\"21\"\u003eFul Well Capacity\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e15.7ke-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"212\" height=\"21\"\u003eReadout Noise\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e0.75e to 3.2e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"212\" height=\"21\"\u003eA\/D \u003c\/td\u003e\n\u003ctd width=\"271\"\u003e12-bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"212\" height=\"21\"\u003eShutter Type\u003c\/td\u003e\n\u003ctd width=\"271\"\u003eElectric Rolling Shutter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"212\" height=\"21\"\u003eColor Version\u003c\/td\u003e\n\u003ctd width=\"271\"\u003eQHY5III290C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"212\" height=\"21\"\u003eMono Version\u003c\/td\u003e\n\u003ctd width=\"271\"\u003eQHY5III290M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"212\" height=\"21\"\u003eComputer Interface\u003c\/td\u003e\n\u003ctd width=\"271\"\u003eUSB3.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"212\" height=\"21\"\u003eGuide Port\u003c\/td\u003e\n\u003ctd width=\"271\"\u003eStandard 6-pin RJ11 Guide Port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"212\" height=\"21\"\u003eTelescope Interface\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e1.25-inch, CS mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"212\" height=\"21\"\u003eWeight\u003c\/td\u003e\n\u003ctd width=\"271\"\u003e87g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":44967211958557,"sku":"QHY-QHY5III290M","price":461.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/QHYCCD-QHY5III290M-Mono-1__87359.1595653763.1280.1280.jpg?v=1684339030"},{"product_id":"qhyccd-qhy5iii174c-color","title":"QHYCCD QHY5III174C Color","description":"\u003c!-- more --\u003e\u003cp\u003eThe QHY5-III series cameras are USB3 super-speed cameras and guiders.  They can be used in a standard 1.25-inch eyepiece holder and have an adjustable location ring for confocality with an eyepiece.  All QHY5III series cameras come in a very small but powerful package!\u003c\/p\u003e\u003cp\u003eThe QHY5III174 is the first in the new QHY5III series CMOS USB 3.0 cameras. The camera is designed to be an excellent planetary, lunar, solar and meteor capture video camera. With a 50mm, F\/1.4 C-mount lens it will record 8th to 9th magnitude stars at 30 frames per second (33 ms exposure).  This high sensitivity with HD resolution will push video astronomy to new heights.  Sony introduced a new global shutter (GS) CMOS imaging technology called PregiusTM that redefines the global shutter imaging category and provides the best of both worlds:  fast frame rates and CCD-like imaging performance.  The technology also offers reduced dark noise, which enables higher gains without compromising image quality, as well as higher quantum efficiency.    The global shutter eliminates pixelization when imaging the moon and planets and moon caused by atmospheric agitation and high frame rates. \u003c\/p\u003e\u003cp\u003eThe unique QHYCCD design retains the 1.25-inch eyepiece design of the QHY5-II series but adds features for better cooling.  This design is more efficient in transfer of heat to the outer case enabling lower noise especially in high ambient temperatures.  The 1.25 inch design also offers the shortest possible backfocus, making the camera ideal for off-axis guiding.  In addition, the QHY5III174 uses a more robust LEMO style connector for the guide port.  These connectors are known for being both rugged and reliable.   The QHY5III174 is available in both mono and color versions. The camera is well suited for solar imaging using short focal length telescopes that will capture a full solar disk within the FOV. \u003c\/p\u003e\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eSpecifications\u003c\/p\u003e\n\u003cdiv\u003e\u003ctable border=\"0\" width=\"523\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ccolgroup\u003e\n\u003ccol width=\"219\"\u003e\n\u003ccol width=\"304\"\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eModel\u003c\/td\u003e\n\u003ctd width=\"304\"\u003eQHY5III174\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eCMOS Sensor\u003c\/td\u003e\n\u003ctd width=\"304\"\u003eIMX174\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003ePixel Size\u003c\/td\u003e\n\u003ctd width=\"304\"\u003e5.86um\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003ePixel Array\u003c\/td\u003e\n\u003ctd width=\"304\"\u003e1920*1200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eEffective Pixels\u003c\/td\u003e\n\u003ctd width=\"304\"\u003e2.3 Megapixels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eSensor Optical Format\u003c\/td\u003e\n\u003ctd width=\"304\"\u003e1\/1.2-inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eFrame Rate@Full Frame\u003c\/td\u003e\n\u003ctd width=\"304\"\u003e138FPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"4\" width=\"219\" height=\"81\"\u003eFrame rate @ROI readout\u003c\/td\u003e\n\u003ctd width=\"304\"\u003e262FPS@ 960*600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd width=\"304\" height=\"20\"\u003e490FPS@ 480*300\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd width=\"304\" height=\"20\"\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd width=\"304\" height=\"21\"\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eFul Well Capacity\u003c\/td\u003e\n\u003ctd width=\"304\"\u003e32ke-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eReadout Noise\u003c\/td\u003e\n\u003ctd width=\"304\"\u003e1.6e- to 5.3e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eA\/D \u003c\/td\u003e\n\u003ctd width=\"304\"\u003e12-bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eShutter Type\u003c\/td\u003e\n\u003ctd width=\"304\"\u003eElectric Global Shutter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eColor Version\u003c\/td\u003e\n\u003ctd width=\"304\"\u003eQHY5III174C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eMono Version\u003c\/td\u003e\n\u003ctd width=\"304\"\u003eQHY5III174M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eComputer Interface\u003c\/td\u003e\n\u003ctd width=\"304\"\u003eUSB3.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eGuide Port\u003c\/td\u003e\n\u003ctd width=\"304\"\u003eStandard 6-pin RJ11 Guide Port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eTelescope Interface\u003c\/td\u003e\n\u003ctd width=\"304\"\u003e1.25-inch, CS mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eWeight\u003c\/td\u003e\n\u003ctd width=\"304\"\u003e89g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":44967211991325,"sku":"QHY-100064","price":839.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/QHYCCD-QHY5III174C-Color-1__27394.1595653764.1280.1280.jpg?v=1684339032"},{"product_id":"qhyccd-qhy5iii174m-mono","title":"QHYCCD QHY5III174M Mono","description":"\u003c!-- more --\u003e\u003cp\u003eThe QHY5-III series cameras are USB3 super-speed cameras and guiders.  They can be used in a standard 1.25-inch eyepiece holder and have an adjustable location ring for confocality with an eyepiece.  All QHY5III series cameras come in a very small but powerful package!\u003c\/p\u003e\u003cp\u003eThe QHY5III174 is the first in the new QHY5III series CMOS USB 3.0 cameras. The camera is designed to be an excellent planetary, lunar, solar and meteor capture video camera. With a 50mm, F\/1.4 C-mount lens it will record 8th to 9th magnitude stars at 30 frames per second (33 ms exposure).  This high sensitivity with HD resolution will push video astronomy to new heights.  Sony introduced a new global shutter (GS) CMOS imaging technology called PregiusTM that redefines the global shutter imaging category and provides the best of both worlds:  fast frame rates and CCD-like imaging performance.  The technology also offers reduced dark noise, which enables higher gains without compromising image quality, as well as higher quantum efficiency.    The global shutter eliminates pixelization when imaging the moon and planets and moon caused by atmospheric agitation and high frame rates. \u003c\/p\u003e\u003cp\u003eThe unique QHYCCD design retains the 1.25-inch eyepiece design of the QHY5-II series but adds features for better cooling.  This design is more efficient in transfer of heat to the outer case enabling lower noise especially in high ambient temperatures.  The 1.25 inch design also offers the shortest possible backfocus, making the camera ideal for off-axis guiding.  In addition, the QHY5III174 uses a more robust LEMO style connector for the guide port.  These connectors are known for being both rugged and reliable.   The QHY5III174 is available in both mono and color versions. The camera is well suited for solar imaging using short focal length telescopes that will capture a full solar disk within the FOV. \u003c\/p\u003e\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eSpecifications\u003c\/p\u003e\n\u003cdiv\u003e\u003ctable border=\"0\" width=\"523\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ccolgroup\u003e\n\u003ccol width=\"219\"\u003e\n\u003ccol width=\"304\"\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eModel\u003c\/td\u003e\n\u003ctd width=\"304\"\u003eQHY5III174\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eCMOS Sensor\u003c\/td\u003e\n\u003ctd width=\"304\"\u003eIMX174\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003ePixel Size\u003c\/td\u003e\n\u003ctd width=\"304\"\u003e5.86um\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003ePixel Array\u003c\/td\u003e\n\u003ctd width=\"304\"\u003e1920*1200\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eEffective Pixels\u003c\/td\u003e\n\u003ctd width=\"304\"\u003e2.3 Megapixels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eSensor Optical Format\u003c\/td\u003e\n\u003ctd width=\"304\"\u003e1\/1.2-inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eFrame Rate@Full Frame\u003c\/td\u003e\n\u003ctd width=\"304\"\u003e138FPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"4\" width=\"219\" height=\"81\"\u003eFrame rate @ROI readout\u003c\/td\u003e\n\u003ctd width=\"304\"\u003e262FPS@ 960*600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd width=\"304\" height=\"20\"\u003e490FPS@ 480*300\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd width=\"304\" height=\"20\"\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd width=\"304\" height=\"21\"\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eFul Well Capacity\u003c\/td\u003e\n\u003ctd width=\"304\"\u003e32ke-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eReadout Noise\u003c\/td\u003e\n\u003ctd width=\"304\"\u003e1.6e- to 5.3e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eA\/D \u003c\/td\u003e\n\u003ctd width=\"304\"\u003e12-bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eShutter Type\u003c\/td\u003e\n\u003ctd width=\"304\"\u003eElectric Global Shutter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eColor Version\u003c\/td\u003e\n\u003ctd width=\"304\"\u003eQHY5III174C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eMono Version\u003c\/td\u003e\n\u003ctd width=\"304\"\u003eQHY5III174M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eComputer Interface\u003c\/td\u003e\n\u003ctd width=\"304\"\u003eUSB3.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eGuide Port\u003c\/td\u003e\n\u003ctd width=\"304\"\u003eStandard 6-pin RJ11 Guide Port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eTelescope Interface\u003c\/td\u003e\n\u003ctd width=\"304\"\u003e1.25-inch, CS mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"219\" height=\"21\"\u003eWeight\u003c\/td\u003e\n\u003ctd width=\"304\"\u003e89g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":44967212024093,"sku":"QHY-100063","price":881.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/QHYCCD-QHY5III174M-Mono-1__13796.1595653764.1280.1280.jpg?v=1684339033"},{"product_id":"qhyccd-qhy5iii462c-color","title":"QHYCCD QHY5III462C Color","description":"\u003c!-- more --\u003e\u003cp\u003eThe QHY5-III series cameras are USB3 super-speed cameras and guiders.  They can be used in a standard 1.25-inch eyepiece holder and have an adjustable location ring for confocality with an eyepiece.  All QHY5III series cameras come in a very small but powerful package!\u003c\/p\u003e\u003ch2\u003eHigh QE 800-1000nm: Monochrome at NIR\u003c\/h2\u003e\u003cp\u003eThe QHY5III462C uses Sony's latest generation IMX462 back-illuminated sensor with extended red and near infrared response. It has nearly double the red and NIR sensitivity as previous generation BSI sensors and even greater sensitivity compared to front illuminated sensors. Because the RGB filters become transparent at NIR wavelengths, the camera captures RGB color images in visible light and monochrome images in NIR.\u003c\/p\u003e\u003ch2\u003eBoosts Low Light Sensitivity: 0.5e- Read Noise\u003c\/h2\u003e\u003cp\u003eSony's new sHCG (Super High Conversion Gain) technology produces a higher voltage from fewer photons resulting in greater sensitivity even at very low levels of light. With sHCG technology, even in visible light, the QHY5III462C has higher sensitivity than the back-illuminated IMX290 based cameras.\u003c\/p\u003e\u003ch2\u003eHigh Frame Rate: 135FPS\u003c\/h2\u003e\u003cp\u003eTo produce the highest detail with the greatest dynamic range, many planetary imagers prefer to capture hundreds or thousands of images in as short a time as possible and then process the results into one final combined image. This requires high sensitivity for short exposures and low read noise for combining multiple images. The QHY5III462C will output 135 frames per second at full resolution. With its exceptionally high QE and extraordinarily low (0.5e-) read noise, it is the perfect camera for planetary imaging.\u003c\/p\u003e\u003ch2\u003eFilters for Visible and IR Imaging: IR850 for NIR \u0026amp; UV-IR for Color\u003c\/h2\u003e\u003cp\u003eThe QHY5III462C comes with two free 1.25-inch filters. The IR850 filter is a long wavelength pass filter that allows wavelengths \u0026gt; 850nm to pass through. The UV\/IR filter passes visible light and blocks the NIR. With these two filters you can capture both RGB color images and NIR monochrome images with the same camera. At NIR wavelengths, the RGB filters become transparent and the camera behaves like a monochrome IR camera.\u003c\/p\u003e\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eSpecifications\u003c\/p\u003e\n\u003cdiv\u003e\u003ctable border=\"0\" width=\"174\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ccolgroup\u003e\u003ccol span=\"2\" width=\"87\"\u003e\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"87\" height=\"39\"\u003eModel\u003c\/td\u003e\n\u003ctd width=\"87\"\u003eQHY5III462C (Color and Enhanced Near Infrared)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"35\"\u003eCMOS Sensor\u003c\/td\u003e\n\u003ctd\u003eSONY IMX462 CMOS \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"35\"\u003ePixel Size\u003c\/td\u003e\n\u003ctd\u003e2.9um x 2.9um\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"39\"\u003eEffective Pixel Area\u003c\/td\u003e\n\u003ctd\u003e\u003cdiv\u003e1920 x 1080\u003c\/div\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"60\"\u003eEffective Pixels\u003c\/td\u003e\n\u003ctd\u003e2 Megapixels \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"41\"\u003eFullwell\u003c\/td\u003e\n\u003ctd\u003e12000e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"41\"\u003eReadout Noise\u003c\/td\u003e\n\u003ctd\u003e0.5e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"41\"\u003eAD Sample Depth\u003c\/td\u003e\n\u003ctd\u003e12-bit (output as 16-bit and 8-bit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"41\"\u003eSensor Size\u003c\/td\u003e\n\u003ctd\u003eTypical 1\/2.8 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"116\"\u003eFull Frame Rate\u003c\/td\u003e\n\u003ctd\u003eFull Resolution 135 FPS@8-bits (USB3.0 Port）\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"35\"\u003eROI Frame Rate \u003c\/td\u003e\n\u003ctd\u003eHigher rates at selected fields of interest (Supports any region ROI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"79\"\u003eExposure Time Range\u003c\/td\u003e\n\u003ctd\u003e7us-900sec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"41\"\u003eShutter Type\u003c\/td\u003e\n\u003ctd\u003eElectronic Rolling Shutter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"41\"\u003eComputer Interface\u003c\/td\u003e\n\u003ctd\u003eUSB3.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"41\"\u003eGuide Port\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"35\"\u003eTelescope Interface\u003c\/td\u003e\n\u003ctd\u003e1.25-inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\" height=\"101\"\u003eOptic Window Type\u003c\/td\u003e\n\u003ctd\u003eChangeable 1.25-inch filter as optical window\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd height=\"60\"\u003e(Includes free 1.25-inch UV\/IR cut filter and free 1.25-inch IR850 filter)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"41\"\u003eBack Focal Length\u003c\/td\u003e\n\u003ctd\u003e(see setup combination table below)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"39\"\u003eWeigth\u003c\/td\u003e\n\u003ctd\u003e88g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":44967212155165,"sku":"QHY-110078","price":419.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/QHYCCD-QHY5III462C-Color-1__01192.1595653764.1280.1280.jpg?v=1684339039"},{"product_id":"qhyccd-qhy183c-color","title":"QHYCCD QHY183C Color","description":"\u003c!-- more --\u003eQHYCCD QHY183C Color","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":44967212187933,"sku":"QHY-100090","price":979.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/QHYCCD-QHY183C-Color-1__97840.1595653767.1280.1280.jpg?v=1684339040"},{"product_id":"qhyccd-qhy183m-mono","title":"QHYCCD QHY183M Mono","description":"\u003c!-- more --\u003e\u003cp\u003e\u003cstrong\u003eThe QHY183M\u003c\/strong\u003e is a one-inch, 20 Megapixel back-illuminated monochrome CMOS camera with a peak QE of 84%.  The pixel size is 2.4um, yielding high-resolution with modest size telescopes.  The camera is capable of producing 15FPS@20 Megapixels.  It has a two-stage TEC that cools the sensor to -40C to -45C below ambient.  The ADC is 12-bit \/ 16-bit with 1e- read noise!  The computer interface is USB 3.0 and exposure times can be set from 50us to 3600sec.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003eSony's Image Sensor \u003cstrong\u003eExmor R\u003c\/strong\u003e is a back-illuminated CMOS image sensor with improved sensitivity and noise reduction - the key factors to enhancing image quality, while radically realigning their fundamental pixel structure from front-illumination to back-illumination. It retains the advantages of CMOS image high-speed operation while dramatically improving sensitivity.\u003c\/p\u003e\u003cp\u003eThe QHY183M has\u003cstrong\u003e a 128MB DDR Memory Buffer.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\u003c\/strong\u003eA QHY183M 16-bit image is about 40MB, so 128MB of memory can easily buffer a full frame for transfer to the computer using QHY183M software with native single-frame shooting function, instead of intercepting a frame from a continuous video transmission.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThis makes data transfer to the computer stable and reliable because there is no USB bandwidth or busy CPU problems. \u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003eThe QHY183M utilizes the \u003cstrong\u003eAnti-Dew \u003c\/strong\u003efeatures common to the QHY COLDMOS cameras.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eA heated optical window prevents exterior dew from forming, and the CMOS chamber has a desiccant plug socket to prevent moisture from forming on the sensor at cold temperatures.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003eThe QHY183M incorporates QHY’s \u003cstrong\u003eAnti-Amp Glow\u003c\/strong\u003e technology to significantly reduce typical CMOS amplifier glow to a minimum, allowing excellent calibration by subtracting a dark frame.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eSpecifications\u003c\/p\u003e\n\u003cdiv\u003e\u003ctable border=\"0\" width=\"1048\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ccolgroup\u003e\n\u003ccol width=\"257\"\u003e\n\u003ccol width=\"791\"\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"257\" height=\"20\"\u003eModel\u003c\/td\u003e\n\u003ctd width=\"791\"\u003eQHY183M Monochrome \/ QHY183C Color\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eSensor\u003c\/td\u003e\n\u003ctd\u003eSONY IMX183 Back-Illuminated CMOS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eAR Coating On Sensor\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003ePixel Size\u003c\/td\u003e\n\u003ctd\u003e2.4um x .4um\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eEffective Pixel Area\u003c\/td\u003e\n\u003ctd\u003e5544 x 3694\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eEffective Pixels\u003c\/td\u003e\n\u003ctd\u003e20 mega \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eEffective Image Area\u003c\/td\u003e\n\u003ctd\u003e13.3mm x 8.87mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eFullwell\u003c\/td\u003e\n\u003ctd\u003e15.5ke-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003ePeak QE\u003c\/td\u003e\n\u003ctd\u003e84% (Monochrome)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eAD Sample Depth\u003c\/td\u003e\n\u003ctd\u003e12bit (output as 16bit and 8bit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eSensor Size\u003c\/td\u003e\n\u003ctd\u003eTypical 4\/3inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eFull Frame Rate\u003c\/td\u003e\n\u003ctd\u003eFull Resolution 19FPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eROI Frame Rate\u003c\/td\u003e\n\u003ctd\u003e4096 x 2160 4K HD Video 31FPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eReadout Noise\u003c\/td\u003e\n\u003ctd\u003e2.7e-@lowest gain   1.0e@high gain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eDark Current\u003c\/td\u003e\n\u003ctd\u003e0.0024e\/pixel\/sec @ -15C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eExposure Time Range\u003c\/td\u003e\n\u003ctd\u003e50us-3600sec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eAnti-Glow Control\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eShutter Type\u003c\/td\u003e\n\u003ctd\u003eElectric Rolling Shutter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eComputer Interface\u003c\/td\u003e\n\u003ctd\u003eUSB3.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eBuilt-in Image Buffer\u003c\/td\u003e\n\u003ctd\u003e128MByte DDR2 memory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eCooling System\u003c\/td\u003e\n\u003ctd\u003eDual Stage TEC cooler (-40C below ambient）\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eAnti-Dew Heater\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eTelescope Interface\u003c\/td\u003e\n\u003ctd\u003eM42\/0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eOptic Window Type\u003c\/td\u003e\n\u003ctd\u003eAR+AR High Quality Multi-Layer Anti-Reflection Coating (For color camera user need to add a UV\/IR filter in the light path)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eBack Focal Length\u003c\/td\u003e\n\u003ctd\u003esee the setup combination table in the bottom of this page\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eWeigth\u003c\/td\u003e\n\u003ctd\u003e650g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eIn the Box\u003c\/p\u003e\n\u003cdiv\u003e\u003cul\u003e\n\u003cli\u003eUSB3.0 cable(1.5m)\u003c\/li\u003e\n\u003cli\u003eSelf-locking power cable\u003c\/li\u003e\n\u003cli\u003e6pin guide cable\u003c\/li\u003e\n\u003cli\u003eCar power adapter\u003c\/li\u003e\n\u003cli\u003eDrying tube\u003c\/li\u003e\n\u003cli\u003eDesiccant\u003c\/li\u003e\n\u003cli\u003eM42\/1.25inch adaptor\u003c\/li\u003e\n\u003cli\u003eDriver download card\u003c\/li\u003e\n\u003cli\u003eInspection report\u003c\/li\u003e\n\u003cli\u003eCamera\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":44967212220701,"sku":"QHY-100105","price":1399.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/QHYCCD-QHY183M-Mono-1__47650.1595653767.1280.1280.jpg?v=1684339208"},{"product_id":"qhyccd-qhy163m-mono","title":"QHYCCD QHY163M Mono","description":"\u003c!-- more --\u003e\u003cp\u003eThe QHYCCD medium size COLDMOS camera series includes all of our cooled cameras with CMOS sensor sizes from 1 inch to Full Frame (35mm Format) and includes BSI (back-illuminated) as well as FSI (front-illuminated) CMOS sensors in both monochrome and color cameras.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eUSB 3.0\u003c\/li\u003e\n\u003cli\u003eFront-illuminated and Back-illuminated Sensors\u003c\/li\u003e\n\u003cli\u003eLightweight Compact Design\u003c\/li\u003e\n\u003cli\u003eRegulated TE Cooling Delta -35C to -40C\u003c\/li\u003e\n\u003cli\u003e128 MB DDR Frame Buffer\u003c\/li\u003e\n\u003cli\u003eST-4 Compatible Guide Port\u003c\/li\u003e\n\u003cli\u003eFilter Wheel Port\u003c\/li\u003e\n\u003cli\u003eAnti-Noise Technology\u003c\/li\u003e\n\u003cli\u003eAnti-Amp Glow Technology\u003c\/li\u003e\n\u003cli\u003eAnti-Dew Technology\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAll models include a heated optical window to prevent external dew, a desiccant plug socket to help maintain a frost-free CMOS chamber, a 128MB frame buffer, a filter wheel port, and 2-stage TE cooling to reduce the sensor temperature to -35C or -40C below ambient along with temperature regulation to maintain a constant temperature set point.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eDue to the efficient TE cooling, single exposures many minutes in duration are possible, making them ideally suited for deep space imaging of dim objects as well as brighter objects and planets.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe Horsehead Nebula image on the reverse side is only 3 x 20 minute single-shot color exposures.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003eSix of these medium sized COLDMOS cameras use Sony Exmor CMOS sensors, including the two largest with 24 and 36 Megapixels, respectively, in 35mm format sensors.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eEven these large sensors deliver multiple frames per second at full resolution.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThese front illuminated sensors also exhibit very high sensitivity.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eOne model in this group (QHY163M\/C) uses a Panasonic back-illuminated sensor and one model (QHY183M\/C) uses a Sony STARVIS Exmore R back-illuminated sensor.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eSTARVIS is Sony’s designation for sensors capable of recording under starlight.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThese back-illuminated sensors have even greater sensitivity as well as noise reduction - the key factors to enhancing image quality, while radically realigning their fundamental pixel structure from front-illumination to back-illumination.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThey retain the advantages of CMOS image sensors such as low power consumption and high-speed operation while dramatically improving sensitivity. \u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eSpecifications\u003c\/p\u003e\n\u003cdiv\u003e\u003ctable border=\"0\" width=\"862\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ccolgroup\u003e\n\u003ccol width=\"215\"\u003e\n\u003ccol width=\"647\"\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"215\" height=\"20\"\u003eModel\u003c\/td\u003e\n\u003ctd width=\"647\"\u003eQHY163M (Monochrome)  QHY163C(Color)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eSensor  \u003c\/td\u003e\n\u003ctd\u003e16Mp  4\/3-inch CMOS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eAR Coating On Sensor\u003c\/td\u003e\n\u003ctd\u003eNo.  Clear Glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003ePixel Size\u003c\/td\u003e\n\u003ctd\u003e3.8um*3.8um\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eEffective Pixel Area\u003c\/td\u003e\n\u003ctd\u003e4656*3522\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eEffective Pixels\u003c\/td\u003e\n\u003ctd\u003e16 Megapixels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eEffective Image Area\u003c\/td\u003e\n\u003ctd\u003e17.7mm*13.4mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eFullwell\u003c\/td\u003e\n\u003ctd\u003e18ke- to 20ke-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eAD Sample Depth\u003c\/td\u003e\n\u003ctd\u003e12bit\/10bit (output as 16bit and 8bit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eSensor Size\u003c\/td\u003e\n\u003ctd\u003eTypical 4\/3inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eFrame Rate\u003c\/td\u003e\n\u003ctd\u003e22.5FPS@16mega Full Resolution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003e\u003c\/td\u003e\n\u003ctd\u003e30FPS@4K HD Video   \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003e\u003c\/td\u003e\n\u003ctd\u003e57FPS@1920*1080\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003e\u003c\/td\u003e\n\u003ctd\u003e60FPS@1280*1024\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003e\u003c\/td\u003e\n\u003ctd\u003e80FPS@1024*768\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003e\u003c\/td\u003e\n\u003ctd\u003e100fps@800*600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eReadout Noise\u003c\/td\u003e\n\u003ctd\u003e2.4e@low gain 1.0e@high gain \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eDark Current\u003c\/td\u003e\n\u003ctd\u003eTBD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eExposure Time Range\u003c\/td\u003e\n\u003ctd\u003e60us-1800sec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eAnti-Glow Control\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eShutter Type\u003c\/td\u003e\n\u003ctd\u003eElectric Rolling Shutter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eComputer Interface\u003c\/td\u003e\n\u003ctd\u003eUSB3.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eBuilt-in Image Buffer\u003c\/td\u003e\n\u003ctd\u003e128MByte DDR2 memory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eCooling System\u003c\/td\u003e\n\u003ctd\u003eDual Stage TEC cooler（about -40C below ambient）\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eAnti-Dew Heater\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eAir-proof Chamber \u003c\/td\u003e\n\u003ctd\u003eYes, with silica gel tube socket\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eTelescope Interface\u003c\/td\u003e\n\u003ctd\u003eM42\/0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eOptic Window Type\u003c\/td\u003e\n\u003ctd\u003eQHY163M: AR+AR High Quality Multi-Layer Anti-Reflection Coating \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003e\u003c\/td\u003e\n\u003ctd\u003eQHY163C: IR cut filter \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eBack Focal Length\u003c\/td\u003e\n\u003ctd\u003eDifferent value with different setup. See the camera connection table on bottom of this page\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e442g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eOther Port\u003c\/td\u003e\n\u003ctd\u003e6PIN RJ11 Guide Port,  4PIN QHYCFW Port.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003eCamera Powered by USB.  The TEC need 12V DC input.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eIn the Box\u003c\/p\u003e\n\u003cdiv\u003e\u003cul\u003e\n\u003cli\u003eUSB3.0 cable(1.5m)\u003c\/li\u003e\n\u003cli\u003eSelf-locking power cable\u003c\/li\u003e\n\u003cli\u003e6pin guide cable\u003c\/li\u003e\n\u003cli\u003eCar power adapter\u003c\/li\u003e\n\u003cli\u003eDrying tube\u003c\/li\u003e\n\u003cli\u003edesiccant\u003c\/li\u003e\n\u003cli\u003eM42\/2inch adaptor(Maximum diameter: 56mm)\u003c\/li\u003e\n\u003cli\u003eDriver download card\u003c\/li\u003e\n\u003cli\u003eInspection report\u003c\/li\u003e\n\u003cli\u003eQHY163M camera\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":44967212253469,"sku":"QHY-QHY163M","price":1679.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/QHYCCD-QHY163M-Mono-1__64945.1595653768.1280.1280.jpg?v=1684339213"},{"product_id":"qhyccd-qhy367cpro-c-color","title":"QHYCCD QHY367CPRO-C Color","description":"\u003c!-- more --\u003e\u003cp\u003eQHYCCD is proud to announce the release of two exciting new 35mm format color cameras.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe QHY128C uses a 24 Megapixel sensor with 5.96u pixels and the QHY367C uses a 36 Megapixel sensor with 4.88u pixels.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eBoth models incorporate the latest technology and offer:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eUSB 3.0, 5 FPS up to 30 FPS for partial frames\u003c\/li\u003e\n\u003cli\u003eUltra High Performance\u003c\/li\u003e\n\u003cli\u003eUltra Low Read Noise and Dark Current\u003c\/li\u003e\n\u003cli\u003eHigh Dynamic Range\u003c\/li\u003e\n\u003cli\u003eZero Amplifier Glow\u003c\/li\u003e\n\u003cli\u003eUnique Thermal Noise Reduction Technology\u003c\/li\u003e\n\u003cli\u003e128MB DDRII Image Buffer\u003c\/li\u003e\n\u003cli\u003eTrue RAW Image Output\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eAnti-Dew Technology\u003c\/li\u003e\n\u003cli\u003eAR+AR Coated Optical Window\u003c\/li\u003e\n\u003cli\u003eAnti-reflection Black Case for F2 Imaging Systems\u003c\/li\u003e\n\u003cli\u003eHigh Precision Axis Calibration (no need for tilt corrections)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe Sony Exmore IMX128 sensor has been used in a number of commercial products including the Nikon D600, 610 and 750 cameras, and the Sony DSC-RX1 camera.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe IMX094 was designed to produce ultra high resolution 4K video as well as 36MP still images.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eIn the QHY cameras, these sensors are implemented specifically for astronomical use with custom thermal noise reduction technology that does not affect the accuracy of the raw image.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eAmplifier glow can also be an issue with some CMOS cameras, but these new QHY models boast the rare capability of zero amplifier glow, no matter how long the exposure.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe image output is a true raw image, without any internal processing for maximum flexibility with image processing software.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eOther features include a 128MB image buffer that helps tremendously with slower computers using USB 2.0, and when running multiple cameras using the same computer.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe optical window has built-in dew control and the chamber is protected from internal humidity condensation.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe optical window is AR+AR coated, reducing halos around bright stars.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eIR blocking is not used so that the cameras can be used with maximum sensitivity to H-alpha and near IR light when desired, or a simple IR blocking filter can be attached for typical RGB imaging with IR cut.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eEach camera is carefully calibrated to high precision assuring flatness of the sensor to +\/- 20 microns from edge to edge, eliminating the need for external adjustments by the user.\u003c\/p\u003e\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eSpecifications\u003c\/p\u003e\n\u003cdiv\u003e\u003ctable cellspacing=\"0\" cellpadding=\"0\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eModel\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eQHY367C\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eSensor  \u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eSONY IMX094 Full Frame CMOS\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eAR Coating On Sensor\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eYes\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003ePixel Size\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e4.88um*4.88um\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eEffective Pixel Area\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e7376*4938\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eEffective Pixels\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e36 Megapixels\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eEffective Image Area\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e36mm*24mm\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eFullwell\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e56ke-\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eAD Sample Depth\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e14-bit (output as 16-bit and 8-bit)\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eSensor Size\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eFull Frame Size\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eFrame Rate\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eFull Reolution 3.2FPS@14BIT\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e2160lines(eg.7400*2160,4096*2160) 7FPS\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e1080lines(eg.7400*2160,1920*2160) 14FPS\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e768lines(eg.7400*768,1024*768) 19FPS\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e480lines(eg.7400*480,640*480) 30FPS\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e320lines(eg.7400*240,320*240) 40FPS\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e100lines(eg.7400*100,240*100) 83FPS\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eReadout Noise\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e3.2e-@Low gain. 2.4e-@unity gain\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eMaxium Dynamic Range\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e\u0026gt;17000:1  More than 14 STOPs\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eDark Current\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e0.0015e\/pixel\/sec @ -15C\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eExposure Time Range\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e100us-3600sec\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eAnti-Glow Control\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eYes, Zero Glow\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eShutter Type\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eElectric Rolling Shutter\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eComputer Interface\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eUSB3.0\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eBuilt-in Image Buffer\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e128MByte DDR2 memory\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eCooling System\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eDual Stage TEC cooler（-35C below ambient）\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eAnti-Dew Heater\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eYes\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eSilicon Gel Socket\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eYes\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eTelescope Interface\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eM54\/0.75 Female Thread on the fast installer\/center adjust ring\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eOptic Window Type\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eAR+AR High Quality Multi-Layer Anti-Reflection Coating (For color camera user need to add a UV\/IR filter in the light path)\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eBack Focal Length\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eWeigth\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e788g\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003ePower Consumption\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e~ 30 Watts @ 100% TEC. 13 Watts @ 50%TEC\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eIn the Box\u003c\/p\u003e\n\u003cdiv\u003e\u003cul\u003e\n\u003cli\u003eUSB3.0 cable(1.5m)\u003c\/li\u003e\n\u003cli\u003eSelf-locking power cable\u003c\/li\u003e\n\u003cli\u003eCar power adapter\u003c\/li\u003e\n\u003cli\u003eDrying tube\u003c\/li\u003e\n\u003cli\u003eDesiccant\u003c\/li\u003e\n\u003cli\u003eAngle adjustment adapter ring\u003c\/li\u003e\n\u003cli\u003e5mm Spacer to convert M54 to 2 inches\u003c\/li\u003e\n\u003cli\u003eInspection report\u003c\/li\u003e\n\u003cli\u003eDriver download card\u003c\/li\u003e\n\u003cli\u003eQHY367C camera\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":44967212286237,"sku":"QHY-110059","price":6159.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/QHYCCD-QHY367CPRO-C-Color-1__98268.1595653769.1280.1280.jpg?v=1684339215"},{"product_id":"qhyccd-qhy247c-color","title":"QHYCCD QHY247C Color","description":"\u003c!-- more --\u003e\u003cp\u003eQHYCCD is proud to announce the release of an exciting new APS-C format color camera.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe QHY247C uses a 24 Megapixel sensor with 3.91um pixels and has TE cooling to -35C below ambient.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe QHY247C incorporates the latest technology and offers:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eUSB 3.0, 10 FPS@1920 x 1080 HD, 3 FPS@ 6024 x 4024 Full Frames\u003c\/li\u003e\n\u003cli\u003e1e- read noise at high gain, 2.7e- at lowest gain\u003c\/li\u003e\n\u003cli\u003eHigh Dynamic Range\u003c\/li\u003e\n\u003cli\u003eZero Amplifier Glow\u003c\/li\u003e\n\u003cli\u003eUnique Thermal Noise Reduction Technology\u003c\/li\u003e\n\u003cli\u003e128MB DDRII Image Buffer\u003c\/li\u003e\n\u003cli\u003eTrue RAW Image Output\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eAnti-Dew Technology\u003c\/li\u003e\n\u003cli\u003eAdvanced AR Coatings on Optical Window, Sensor Glass and Micro lenses!\u003c\/li\u003e\n\u003cli\u003eAnti-reflection Black Case for F2 Imaging Systems\u003c\/li\u003e\n\u003cli\u003eHigh Precision Axis Calibration (no need for tilt corrections)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe Sony IMX193 sensor is the same sensor used in Nikon’s D5300 and D5500 cameras.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe IMX193 has the lowest read noise and lowest thermal (dark) noise of any sensor in the QHY medium size camera product line.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eAdditionally, the already low thermal noise is reduced even more by QHYCCD’s proprietary thermal noise reduction technology that does not affect the accuracy of the raw image.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eAmplifier glow can also be an issue with some CMOS cameras, but this new QHY model boasts the rare capability of zero amplifier glow, no matter how long the exposure.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe image output is a true raw image, without any internal processing for maximum flexibility with image processing software.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eOther features include a 128MB image buffer that helps tremendously with slower computers using USB 2.0, and when running multiple cameras using the same computer.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe optical window has built-in dew control and the chamber is protected from internal humidity condensation.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eIn addition to AR coating on the optical window, the sensor cover glass and micro lenses are also AR coated for maximum halo suppression.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe optical window is AR+AR coated, reducing halos around bright stars.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eIR blocking is not used so that the cameras can be used with maximum sensitivity to H-alpha and near IR light when desired, or a simple IR blocking filter can be attached for typical RGB imaging with IR cut.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eEach camera is carefully calibrated to high precision assuring flatness of the sensor to +\/- 20 microns from edge to edge, eliminating the need for external adjustments by the user.\u003c\/p\u003e\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eSpecifications\u003c\/p\u003e\n\u003cdiv\u003e\u003ctable border=\"0\" width=\"628\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ccolgroup\u003e\n\u003ccol width=\"187\"\u003e\n\u003ccol width=\"441\"\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"187\" height=\"20\"\u003eModel\u003c\/td\u003e\n\u003ctd width=\"441\"\u003eQHY247C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eSensor    \u003c\/td\u003e\n\u003ctd\u003eSONY IMX193 APS-C CMOS \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eAR Coating On Sensor\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003ePixel Size\u003c\/td\u003e\n\u003ctd\u003e3.91um*3.91um\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eEffective Pixel Area\u003c\/td\u003e\n\u003ctd\u003e6024*4024\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eEffective Pixels\u003c\/td\u003e\n\u003ctd\u003e24 Megapixels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eEffective Image Area\u003c\/td\u003e\n\u003ctd\u003e23.55mm*15.73mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eFullwell\u003c\/td\u003e\n\u003ctd\u003e36ke-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eAD Sample Depth\u003c\/td\u003e\n\u003ctd\u003e14-bit (output as 16-bit and 8-bit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eSensor Size\u003c\/td\u003e\n\u003ctd\u003eAPS-C Format\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eFrame Rate\u003c\/td\u003e\n\u003ctd\u003e6024*4024 3FPS@14BIT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003e\u003c\/td\u003e\n\u003ctd\u003e1080 lines (e.g., 4164*2160,1920*2160) 10FPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eReadout Noise\u003c\/td\u003e\n\u003ctd\u003e2.7e @ lowest gain   1.0e @ high gain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eDark Current\u003c\/td\u003e\n\u003ctd\u003e0.0012e\/pixel\/sec  @-15C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eExposure Time Range\u003c\/td\u003e\n\u003ctd\u003e50us-3600sec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eAnti-Glow Control\u003c\/td\u003e\n\u003ctd\u003eYes, almost no visible glow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eShutter Type\u003c\/td\u003e\n\u003ctd\u003eElectric Rolling Shutter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eComputer Interface\u003c\/td\u003e\n\u003ctd\u003eUSB3.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eBuilt-in Image Buffer\u003c\/td\u003e\n\u003ctd\u003e128Byte DDR2 memory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eCooling System\u003c\/td\u003e\n\u003ctd\u003eDual Stage TEC cooler（-35C below ambient）\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eAnti-Dew Heater\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eTelescope Interface\u003c\/td\u003e\n\u003ctd\u003eM42\/0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eOptic Window Type\u003c\/td\u003e\n\u003ctd\u003eAR+AR High Quality Multi-Layer Anti-Reflection Coating (Color camera users add UV\/IR filter for color balance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eBack Focal Length\u003c\/td\u003e\n\u003ctd\u003eTBD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eWeigth\u003c\/td\u003e\n\u003ctd\u003e700g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eIn the Box\u003c\/p\u003e\n\u003cdiv\u003e\u003cul\u003e\n\u003cli\u003eUSB3.0 cable (1.5m)\u003c\/li\u003e\n\u003cli\u003eSelf-locking power cable\u003c\/li\u003e\n\u003cli\u003eAngle adjustment adapter ring\u003c\/li\u003e\n\u003cli\u003eAdapter ring for converting M54 to 2 inches\u003c\/li\u003e\n\u003cli\u003e12V power adapter\u003c\/li\u003e\n\u003cli\u003eDust cap\u003c\/li\u003e\n\u003cli\u003eDrying tube\u003c\/li\u003e\n\u003cli\u003eDesiccant\u003c\/li\u003e\n\u003cli\u003eDriver download card\u003c\/li\u003e\n\u003cli\u003eInspection report\u003c\/li\u003e\n\u003cli\u003eCamera\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":44967212351773,"sku":"QHY-QHY247C","price":2379.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/QHYCCD-QHY247C-Color-1__77029.1595653769.1280.1280.jpg?v=1684339216"},{"product_id":"qhyccd-qhy128pro-c-color","title":"QHYCCD QHY128PRO-C Color","description":"\u003c!-- more --\u003e\u003cp\u003eQHYCCD is proud to announce the release of two exciting new 35mm format color cameras.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe QHY128C uses a 24 Megapixel sensor with 5.96u pixels and the QHY367C uses a 36 Megapixel sensor with 4.88u pixels.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eBoth models incorporate the latest technology and offer:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eUSB 3.0, 5 FPS up to 30 FPS for partial frames\u003c\/li\u003e\n\u003cli\u003eUltra High Performance\u003c\/li\u003e\n\u003cli\u003eUltra Low Read Noise and Dark Current\u003c\/li\u003e\n\u003cli\u003eHigh Dynamic Range\u003c\/li\u003e\n\u003cli\u003eZero Amplifier Glow\u003c\/li\u003e\n\u003cli\u003eUnique Thermal Noise Reduction Technology\u003c\/li\u003e\n\u003cli\u003e128MB DDRII Image Buffer\u003c\/li\u003e\n\u003cli\u003eTrue RAW Image Output\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eAnti-Dew Technology\u003c\/li\u003e\n\u003cli\u003eAR+AR Coated Optical Window\u003c\/li\u003e\n\u003cli\u003eAnti-reflection Black Case for F2 Imaging Systems\u003c\/li\u003e\n\u003cli\u003eHigh Precision Axis Calibration (no need for tilt corrections)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe Sony Exmore IMX128 sensor has been used in a number of commercial products including the Nikon D600, 610 and 750 cameras, and the Sony DSC-RX1 camera.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe IMX094 was designed to produce ultra high resolution 4K video as well as 36MP still images.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eIn the QHY cameras, these sensors are implemented specifically for astronomical use with custom thermal noise reduction technology that does not affect the accuracy of the raw image.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eAmplifier glow can also be an issue with some CMOS cameras, but these new QHY models boast the rare capability of zero amplifier glow, no matter how long the exposure.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe image output is a true raw image, without any internal processing for maximum flexibility with image processing software.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eOther features include a 128MB image buffer that helps tremendously with slower computers using USB 2.0, and when running multiple cameras using the same computer.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe optical window has built-in dew control and the chamber is protected from internal humidity condensation.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe optical window is AR+AR coated, reducing halos around bright stars.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eIR blocking is not used so that the cameras can be used with maximum sensitivity to H-alpha and near IR light when desired, or a simple IR blocking filter can be attached for typical RGB imaging with IR cut.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eEach camera is carefully calibrated to high precision assuring flatness of the sensor to +\/- 20 microns from edge to edge, eliminating the need for external adjustments by the user.\u003c\/p\u003e\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eSpecifications\u003c\/p\u003e\n\u003cdiv\u003e\u003ctable border=\"0\" width=\"1034\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ccolgroup\u003e\n\u003ccol width=\"191\"\u003e\n\u003ccol width=\"843\"\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"191\" height=\"20\"\u003eModel\u003c\/td\u003e\n\u003ctd width=\"843\"\u003eQHY128C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eSensor   \u003c\/td\u003e\n\u003ctd\u003eSONY IMX128 COLOR CMOS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eAR Coating On Sensor\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003ePixel Size\u003c\/td\u003e\n\u003ctd\u003e5.97um x 5.97um\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eEffective Pixel Area\u003c\/td\u003e\n\u003ctd\u003e6036*4028\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eEffective Total Pixels\u003c\/td\u003e\n\u003ctd\u003e24 Megapixels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eEffective Image Area\u003c\/td\u003e\n\u003ctd\u003e36.03 x 24.05mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eFull Well\u003c\/td\u003e\n\u003ctd\u003e74ke-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eAD Sample Depth\u003c\/td\u003e\n\u003ctd\u003e14-bit ADC, output as 16-bit and 8-bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eTypical Sensor Size\u003c\/td\u003e\n\u003ctd\u003eFull Frame Size\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eFrame Rate\u003c\/td\u003e\n\u003ctd\u003e5FPS@Full Resolution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eFrame Rate at ROI\u003c\/td\u003e\n\u003ctd\u003e9FPS@2160 LINES  (eg. 7400*2160, 4096*2160 etc)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003e\u003c\/td\u003e\n\u003ctd\u003e16.5FPS@1080 LINES (eg. 7400*1080,1920*1080 etc)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003e\u003c\/td\u003e\n\u003ctd\u003e22.5FPS@768 LINES\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003e\u003c\/td\u003e\n\u003ctd\u003e32FPS@480 LINES\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eReadout Noise\u003c\/td\u003e\n\u003ctd\u003e1.8e- to 4e-   （2.7e- @unity gain）\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eDark Current\u003c\/td\u003e\n\u003ctd\u003e0.0006e\/pixel\/sec @ -15C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eDynamic Range\u003c\/td\u003e\n\u003ctd\u003e\u0026gt;17000:1  （More than 14 STOPs）\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eExposure Range\u003c\/td\u003e\n\u003ctd\u003e60us-3600sec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eShutter Type\u003c\/td\u003e\n\u003ctd\u003eElectric Rolling Shutter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eComputer Interface\u003c\/td\u003e\n\u003ctd\u003eUSB3.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eColor Version\u003c\/td\u003e\n\u003ctd\u003eQHY128C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eMono Version\u003c\/td\u003e\n\u003ctd\u003eQHYCCD and ChipMod can supply the monochrome MOD version.  Please consult Dealer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eCooled System\u003c\/td\u003e\n\u003ctd\u003eDual Stage TEC cooling （-35C below ambient）\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eOptic Window Type\u003c\/td\u003e\n\u003ctd\u003eAR+AR High Quality Multi-layer Anti-Reflection coating (External UV\/IR filter used for color balance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eBuild-in Anti-Dew Heater\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eTelescope Interface\u003c\/td\u003e\n\u003ctd\u003eM54\/0.75 female thread \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eBack Focal Length\u003c\/td\u003e\n\u003ctd\u003e18mm（±0.5）\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e788g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eIn the Box\u003c\/p\u003e\n\u003cdiv\u003e\u003cul\u003e\n\u003cli\u003eUSB3.0 cable (1.5m)\u003c\/li\u003e\n\u003cli\u003eSelf-locking power cable\u003c\/li\u003e\n\u003cli\u003eAngle adjustment adapter ring\u003c\/li\u003e\n\u003cli\u003eAdapter ring for converting M54 to 2 inches\u003c\/li\u003e\n\u003cli\u003eCar power adapter\u003c\/li\u003e\n\u003cli\u003eDrying tube\u003c\/li\u003e\n\u003cli\u003eDesiccant\u003c\/li\u003e\n\u003cli\u003eDriver download card\u003c\/li\u003e\n\u003cli\u003eInspection report\u003c\/li\u003e\n\u003cli\u003eCamera\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":44967212384541,"sku":"QHY-QHY128PRO-C","price":3773.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/QHYCCD-QHY128PRO-C-Color-1__15092.1595653770.1280.1280.jpg?v=1684339218"},{"product_id":"qhyccd-qhy294c-pro-color","title":"QHYCCD QHY294C-Pro Color","description":"\u003c!-- more --\u003e\u003cp\u003e\u003cstrong\u003eThe Sony Starvis IMX294CJK Exmor R is a 21.63 mm diagonal (Type 4\/3), 10.7 megapixel, back-illuminated color CMOS sensor.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\u003c\/strong\u003eSony has commercialized the IMX294CJK Type 4\/3 back-illuminated CMOS image sensor for low light applications.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe IMX294CJK is the first in-house image sensor to adopt the Type 4\/3 format and realize output of the number of pixels needed for 4K video at 120 frame\/s (in ADC 10-bit output mode). In addition, use of a large-size pixel achieves SNR1s of 0.14 lx, and use of a Quad Bayer pixel structure realizes a High Dynamic Range function with no time difference, enabling video imaging with a wide dynamic range. \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSTARVIS\u003c\/strong\u003e is a trademark of Sony Corporation. The STARVIS is back-illuminated pixel technology used in CMOS image sensors for low light applications and realizes high picture quality in the visible-light and near infrared light regions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eExmor R\u003c\/strong\u003e is a Sony's CMOS image sensor with significantly enhanced imaging characteristics including sensitivity and low noise by changing fundamental structure of Exmor™ pixel adopted column parallel A\/D converter to back-illuminated type.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSupports Type 4\/3 4K output\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe IMX294CJK adopts Type 4\/3 as the optical size, and supports various output formats (angle of view) including 10M (3704 × 2778) for aspect ratio 4:3, UHD (3840 × 2160) for 16:9, and 4096 × 2160 for 17:9. In addition, the A\/D converter can be selected from 10 bits, 12 bits, and 14 bits according to the application.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eExceptional low-illumination performance\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eExceptional low-illumination performance of SNR1s: 0.14 lx is realized by use of a large-size optical system and by expanding the area per pixel to 4.63 µm. This makes the IMX294CJK ideal for applications that require low-illumination performance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQuad Bayer Coding HDR\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe IMX294CJK uses a Quad Bayer structure, and outputs data binned in 2 × 2 pixel units in normal mode. In HDR mode, integration can be divided into long-time integration and short-time integration for each 2 pixels in the Quad array.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eIn this case there is no time difference between long-time integration and short-time integration, which realizes HDR with little blending offset when imaging moving subjects.\u003c\/p\u003e\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eSpecifications\u003c\/p\u003e\n\u003cdiv\u003e\u003ctable border=\"0\" width=\"962\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ccolgroup\u003e\n\u003ccol width=\"281\"\u003e\n\u003ccol width=\"681\"\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"281\" height=\"20\"\u003eModel\u003c\/td\u003e\n\u003ctd width=\"681\"\u003eQHY294C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eSensor  \u003c\/td\u003e\n\u003ctd\u003eSONY IMX294 Back-Illuminated CMOS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eAR Coating On Sensor\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003ePixel Size\u003c\/td\u003e\n\u003ctd\u003e4.63um*4.63um\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eEffective Pixel Area\u003c\/td\u003e\n\u003ctd\u003e4164*2796\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eEffective Pixels\u003c\/td\u003e\n\u003ctd\u003e11.6 Megapixels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eEffective Image Area\u003c\/td\u003e\n\u003ctd\u003e19.28mm*12.95mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eFullwell\u003c\/td\u003e\n\u003ctd\u003e65ke-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eAD Sample Depth\u003c\/td\u003e\n\u003ctd\u003e14-bit (output as 16-bit and 8-bit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eSensor Size\u003c\/td\u003e\n\u003ctd\u003eTypical 4\/3-inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eFrame Rate\u003c\/td\u003e\n\u003ctd\u003e4164*2796 16.5FPS@14BIT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003e\u003c\/td\u003e\n\u003ctd\u003e2160 lines (eg.4164*2160,4096*2160) 21FPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003e\u003c\/td\u003e\n\u003ctd\u003e1080 lines (eg.4164*2160,1920*2160) 41FPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003e\u003c\/td\u003e\n\u003ctd\u003e960 lines (eg.4164*960,1280*960) 46FPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003e\u003c\/td\u003e\n\u003ctd\u003e768 line s(eg.4164*768,1024*768) 56FPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003e\u003c\/td\u003e\n\u003ctd\u003e480 lines (eg.4164*480,640*480) 87FPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003e\u003c\/td\u003e\n\u003ctd\u003e240 lines (eg.4164*240,320*240) 156FPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003e\u003c\/td\u003e\n\u003ctd\u003e100 lines (eg.4164*100,240*100) 290FPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eReadout Noise\u003c\/td\u003e\n\u003ctd\u003e1.6e-1.0e@HGC mode  6.8-4.2e@LGC mode\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eDark Current\u003c\/td\u003e\n\u003ctd\u003e0.005e\/pixel\/s@-20C    0.007e\/pixel\/s@-15C \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003e\u003c\/td\u003e\n\u003ctd\u003e0.009e\/pixel\/s@-10C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eExposure Time Range\u003c\/td\u003e\n\u003ctd\u003e60us-3600sec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eAnti-Glow Control\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eShutter Type\u003c\/td\u003e\n\u003ctd\u003eElectric Rolling Shutter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eComputer Interface\u003c\/td\u003e\n\u003ctd\u003eUSB3.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eBuilt-in Image Buffer\u003c\/td\u003e\n\u003ctd\u003e256MByte DDR3 memory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eCooling System\u003c\/td\u003e\n\u003ctd\u003eDual Stage TEC cooler（-30 to -35C below ambient）\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eAnti-Dew Heater\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eTelescope Interface\u003c\/td\u003e\n\u003ctd\u003eM42\/0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eOptic Window Type\u003c\/td\u003e\n\u003ctd\u003eAR+AR High Quality Multi-Layer Anti-Reflection Coating (Color camera users add UV\/IR filter for color balance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eBack Focal Length\u003c\/td\u003e\n\u003ctd\u003eTBD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd height=\"20\"\u003eWeigth\u003c\/td\u003e\n\u003ctd\u003e650g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eIn the Box\u003c\/p\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":44967212482845,"sku":"QHY-QHY294C","price":1399.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/QHYCCD-QHY294C-Color-1__63289.1595653771.1280.1280.jpg?v=1684339223"},{"product_id":"qhyccd-qhy410c-color","title":"QHYCCD QHY410C Color","description":"\u003c!-- more --\u003e\u003ch2 data-animation=\"fadeInUp\"\u003e14bit 24mpixel BSI FF\u003c\/h2\u003e\u003cp\u003eThe new QHY410C uses Sony's latest back-illuminated, full frame color sensor. The IMX410 is essentially a back-illuminated version of the sensor that used in the Nikon D750 and QHY128C cameras. In addition to BSI, the IMX410 also has larger 5.94 um pixels giving it increases sensitivity of extended objects in low light. The IMX410 is expected to be Sony's most sensitive full frame color sensor for astrophotography.\u003c\/p\u003e\u003ch2 data-animation=\"fadeInUp\"\u003eHigh Full Well Capacity and High Dynamic Range\u003c\/h2\u003e\u003cp\u003eOne benefit of the back-illuminated CMOS structure is improved full well capacity. This is particularly helpful for sensors with small pixels. When back-illumination is combined with somewhat larger pixels, the full well capacity and cynamic range are improved dramatically. The QHY410C has a full well capacity of 120k electrons! With its low read noise this produces a dynamic range greater than 17,000:1 or more than 14 STOPS. Moreover, the dynamic range remains fairly uniform even at higher gain settings.\u003c\/p\u003e\u003ch2 data-animation=\"fadeInUp\"\u003eLow Read Noise\u003c\/h2\u003e\u003cp\u003eThe QHY410C is capable of only 1.1 electron of read noise at high gain and fast readout speed. One electron of read noise means the camera can achieve a SNR\u0026gt;3 at only 3 to 4 photons. This is perfect performance when conditions are photon limited, i.e., short exposures, narrow band imaging, etc., making this large area sensor ideal for sky surveys and time domain astronomy.\u003c\/p\u003e\u003ch2 data-animation=\"fadeInUp\"\u003eBack-Illuminated\u003c\/h2\u003e\u003cp\u003eSony's Exmor R back-illuminated technology produces sensors that Sony estimates are twice as sensitive as similar front illuminated sensors. QHYCCD tests have borne out this claim. Additionally, Sony sensors are well known for their low dark current. QHYCCD's proprietary thermal noise reduction technology and the QHY40C's dual-stage regulated thermoelectric cooling further reduce dark current to extremely low levels for clean, long duration exposures when required.\u003c\/p\u003e\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eSpecifications\u003c\/p\u003e\n\u003cdiv\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eQHY410C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"116\"\u003eSensor\u003c\/td\u003e\n\u003ctd width=\"116\"\u003eSONY IMX410 Full Frame BSI CMOS Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"116\"\u003eAR Coating On CMOS chamber\u003c\/td\u003e\n\u003ctd width=\"116\"\u003eYes. Multi-layer AR coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"116\"\u003ePixel Size\u003c\/td\u003e\n\u003ctd width=\"116\"\u003e5.94um*5.94um\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd width=\"116\"\u003e\u003cdiv\u003eEffective Pixel Area\u003c\/div\u003e\u003c\/td\u003e\n\u003ctd width=\"116\"\u003e\u003cdiv\u003e\u003cdiv\u003e6072(H)*4044(V)\u003c\/div\u003e\u003c\/div\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd width=\"116\"\u003e\u003cdiv\u003eEffective Pixels\u003c\/div\u003e\u003c\/td\u003e\n\u003ctd width=\"116\"\u003e\u003cdiv\u003e24.55 M Pixels \u003c\/div\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd width=\"116\"\u003e\u003cdiv\u003eEffective Image Area\u003c\/div\u003e\u003c\/td\u003e\n\u003ctd width=\"116\"\u003e\u003cdiv\u003e36mm(H)*24mm(V)\u003c\/div\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd width=\"116\"\u003e\u003cdiv\u003eFullwell\u003c\/div\u003e\u003c\/td\u003e\n\u003ctd width=\"116\"\u003e\u003cdiv\u003e120ke-\u003c\/div\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd width=\"116\"\u003e\u003cdiv\u003eAD Sample Depth\u003c\/div\u003e\u003c\/td\u003e\n\u003ctd width=\"116\"\u003e\u003cdiv\u003e14bit (output as 16bit and 8bit)\u003c\/div\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd width=\"116\"\u003e\u003cdiv\u003eSensor Size\u003c\/div\u003e\u003c\/td\u003e\n\u003ctd width=\"116\"\u003e\u003cdiv\u003eDiagonal 43.3mm(Type 2.7)\u003c\/div\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"116\"\u003eFull Frame Rate and ROI Frame Rate\u003c\/td\u003e\n\u003ctd\u003e\u003cdiv\u003eUSB3.0 Port:\u003cbr\u003eFull Resolution  14 FPS  @8BIT        7 FPS @16BIT\u003cbr\u003e2048lines         23.5FPS  @8BIT     11.5FPS@16BIT\u003cbr\u003e1080lines         33.5FPS  @8BIT     16.5FPS@16BIT\u003cbr\u003e768lines           39FPS     @8BIT        19FPS@16BIT\u003cbr\u003e480lines           46FPS     @8BIT        23FPS@16BIT\u003c\/div\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"116\"\u003eReadout Noise\u003c\/td\u003e\n\u003ctd width=\"116\"\u003e3.75e-@Low gain. 1.1e-@High gain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"116\"\u003eMaxium Dynamic Range\u003c\/td\u003e\n\u003ctd width=\"116\"\u003e\u0026gt;17000:1  More than 14 STOPs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"116\"\u003eDark Current\u003c\/td\u003e\n\u003ctd width=\"116\"\u003e0.01e\/pixel\/sec@ 0C   0.002e\/pixel\/sec@ -20C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"116\"\u003eExposure Time Range\u003c\/td\u003e\n\u003ctd width=\"116\"\u003e100us-3600sec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"116\"\u003eAnti-Glow Control\u003c\/td\u003e\n\u003ctd width=\"116\"\u003eYes, Zero Glow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"116\"\u003eShutter Type\u003c\/td\u003e\n\u003ctd width=\"116\"\u003eElectric Rolling Shutter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"116\"\u003eComputer Interface\u003c\/td\u003e\n\u003ctd width=\"116\"\u003eUSB3.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"116\"\u003eBuilt-in Image Buffer\u003c\/td\u003e\n\u003ctd width=\"116\"\u003e1GByte  (8Gbit)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd width=\"116\"\u003e\u003cdiv\u003eCooling System\u003c\/div\u003e\u003c\/td\u003e\n\u003ctd colspan=\"1\"\u003e\u003cdiv\u003e\u003cdiv\u003eDual Stage TEC cooler（-35C below ambient*）\u003c\/div\u003e\u003c\/div\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd width=\"116\"\u003e\u003cdiv\u003eAnti-Dew Heater\u003c\/div\u003e\u003c\/td\u003e\n\u003ctd colspan=\"1\"\u003e\u003cdiv\u003e\u003cdiv\u003eYes\u003c\/div\u003e\u003c\/div\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"116\"\u003eSilicon Gel Socket\u003c\/td\u003e\n\u003ctd colspan=\"1\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd width=\"116\"\u003e\u003cdiv\u003eTelescope Interface\u003c\/div\u003e\u003c\/td\u003e\n\u003ctd colspan=\"1\"\u003e\u003cdiv\u003e\u003cdiv\u003eM54\/0.75 Female Thread on the fast installer\/center adjust ring\u003c\/div\u003e\u003c\/div\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"116\"\u003eOptic Window Type\u003c\/td\u003e\n\u003ctd colspan=\"1\"\u003e\u003cp\u003eAR+AR High Quality Multi-Layer Anti-Reflection Coating (For color camera user need to add a UV\/IR filter in the light path)\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd width=\"116\"\u003e\u003cdiv\u003eBack Focal Length\u003c\/div\u003e\u003c\/td\u003e\n\u003ctd colspan=\"1\"\u003e\u003cdiv\u003e\u003cdiv\u003e18mm(±0.5)\u003c\/div\u003e\u003c\/div\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd width=\"116\"\u003e\u003cdiv\u003eWeigth\u003c\/div\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cdiv\u003e785g\u003c\/div\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"116\"\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e~ 30 Watts @ 100% TEC. 13 Watts @ 50%TEC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eIn the Box\u003c\/p\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":44967212515613,"sku":"QHY-QHY410C","price":5173.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/QHYCCD-QHY410C-Color-1__48383.1595653771.1280.1280.jpg?v=1684339225"},{"product_id":"qhyccd-qhy90a-mono","title":"QHYCCD QHY90A Mono","description":"\u003c!-- more --\u003e\u003ch2\u003e8.6 Megapixel 4\/3 inch astronomy CCD camera\u003c\/h2\u003e\u003cp\u003eThe QHY90A\/IC90A uses the 4\/3inch KAF-8300 CCD sensor so popular in many astronomical CCD cameras.  This camera has a built-in 7-position filter wheel for 36mm unmounted filters for unvignetted fields even at f\/2, and a butterfly style even-illumination mechanical shutter for photometric accuracy across the field of view.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003ch2\u003e\u003cstrong\u003eKAF-8300 - Popular Sensor\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003eThe KAF-8300 8.3 Megapixel 4\/3 inch mono sensor is used in many astronomy camera models.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003ch2\u003e\u003cstrong\u003e\"A\" Series Camera - Fully Integrated\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003eBoth the QHY90A and IC90A belong to QHYCCD new \"A\" series camera family.  \"A\" stands for \"ALL-IN-ONE\".  The cameras include a built-in motor driven filter wheel and they natively support the QHYOAG.  The small size OAG can be installed on the camera solidly with six screws using a minimum of back focus, precious for some optical systems.  The filter wheel in the QHY90A\/IC90A has a 7-position carousel for 36mm unmounted filters.  In addition to the filter wheel and OAG, these \"A\" series cameras offer an internal USB HUB(2.0) that provides two USB host ports and a USB to dual RS232 coverter.  A guiding camera, mount and electric focuser can be connected directly to this camera instead of the computer to reduce cable clutter and the chance of signal loss due to the long cables. Only one USB cable is needed to control all the peripherals.\u003c\/p\u003e\u003ch2\u003e\u003cstrong\u003eButterfly Shutter - long life and uniform illumination\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003eThis camera uses a mechanical shutter that has a butterfly shape. The shutter is directly driven by a motor with no other moving parts.  The working life is almost unlimited. The shutter has two sides that block light and open spaces in between.  The fan shape of the blades create even-illumination when opening, and even-darkness when closing for dark frames.  This feature is of great benefit when taking flat frames or making photometric measurements. \u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003ch2\u003e\u003cstrong\u003eSingle 12V power socket\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003eThis camera uses a single 12V IN power port.  The power socket is threaded for a solid connection that will not accidentally disconnect.  There is another socket connected in parallel with the input that can be used to supply 12V OUT to other devices. \u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eSpecifications\u003c\/p\u003e\n\u003cdiv\u003e\u003ctable border=\"0\" width=\"845\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ccolgroup\u003e\n\u003ccol width=\"348\"\u003e\n\u003ccol width=\"497\"\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"348\" height=\"21\"\u003eModel\u003c\/td\u003e\n\u003ctd width=\"497\"\u003eQHY90A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"348\" height=\"21\"\u003eSensor  \u003c\/td\u003e\n\u003ctd width=\"497\"\u003eKAF-8300 Full Frame CCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"348\" height=\"21\"\u003ePixel Size\u003c\/td\u003e\n\u003ctd width=\"497\"\u003e5.4um*5.4um\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"348\" height=\"21\"\u003eResolution\u003c\/td\u003e\n\u003ctd width=\"497\"\u003e3358(H)*2536(V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"348\" height=\"21\"\u003eEffective Pixels\u003c\/td\u003e\n\u003ctd width=\"497\"\u003e8.6 Megapixels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"348\" height=\"21\"\u003eEffective Image Area\u003c\/td\u003e\n\u003ctd width=\"497\"\u003e17.96mm(H)*13.52mm(V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"348\" height=\"21\"\u003eFullwell\u003c\/td\u003e\n\u003ctd width=\"497\"\u003e\u0026gt;25.5ke\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"348\" height=\"21\"\u003eAD Sample Depth\u003c\/td\u003e\n\u003ctd width=\"497\"\u003e16-bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"348\" height=\"21\"\u003eSensor Size\u003c\/td\u003e\n\u003ctd width=\"497\"\u003eTypical 4\/3-inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"348\" height=\"21\"\u003eReadout Noise\u003c\/td\u003e\n\u003ctd width=\"497\"\u003e9e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"348\" height=\"21\"\u003ePixel Binning\u003c\/td\u003e\n\u003ctd width=\"497\"\u003e1x1, 2x2, 4x4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"348\" height=\"21\"\u003eReadout Type\u003c\/td\u003e\n\u003ctd width=\"497\"\u003eProgress Scan Readout\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"348\" height=\"21\"\u003eExposure Time\u003c\/td\u003e\n\u003ctd width=\"497\"\u003e1ms-10000sec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"348\" height=\"21\"\u003eCooling System\u003c\/td\u003e\n\u003ctd width=\"497\"\u003eDual Stage TEC Cooler (-45C below ambient)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"348\" height=\"21\"\u003eShutter Type\u003c\/td\u003e\n\u003ctd width=\"497\"\u003eButter-Fly Even-Illumination Long Life Mechanical Shutter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"348\" height=\"21\"\u003eInternal Filter Wheel\u003c\/td\u003e\n\u003ctd width=\"497\"\u003e7-position, 36mm unmounted filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"348\" height=\"21\"\u003eOAG Interface\u003c\/td\u003e\n\u003ctd width=\"497\"\u003eSix M3 thread \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"348\" height=\"21\"\u003ePower Consumption\u003c\/td\u003e\n\u003ctd width=\"497\"\u003e0% TEC  power 8w,  50% TEC power 16.5w ,100%TEC power 27 w\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"348\" height=\"21\"\u003eColor \/ Monochrome\u003c\/td\u003e\n\u003ctd width=\"497\"\u003eMonochrome Only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"348\" height=\"21\"\u003eBuild-in Anti-Dew Heater\u003c\/td\u003e\n\u003ctd width=\"497\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"348\" height=\"21\"\u003eTelescope Interface\u003c\/td\u003e\n\u003ctd width=\"497\"\u003eM42\/0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"348\" height=\"21\"\u003eBack Focal Length\u003c\/td\u003e\n\u003ctd width=\"497\"\u003e30mm（±0.5）\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"348\" height=\"21\"\u003eWeight\u003c\/td\u003e\n\u003ctd width=\"497\"\u003e1335g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eIn the Box\u003c\/p\u003e\n\u003cdiv\u003e\u003cul\u003e\n\u003cli\u003e12V power cable\u003c\/li\u003e\n\u003cli\u003e12v car power adapter\u003c\/li\u003e\n\u003cli\u003eUSB cable\u003c\/li\u003e\n\u003cli\u003eGrounding cable\u003c\/li\u003e\n\u003cli\u003eM42 to 2 inch adapter ring\u003c\/li\u003e\n\u003cli\u003eDrying tube\u003c\/li\u003e\n\u003cli\u003eDessicant\u003c\/li\u003e\n\u003cli\u003eUSB hub bypass board\u003c\/li\u003e\n\u003cli\u003eScrew Driver for M2 hexagon screw\u003c\/li\u003e\n\u003cli\u003eScrews \u003c\/li\u003e\n\u003cli\u003eInspection repord\u003c\/li\u003e\n\u003cli\u003eCamera\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":44967212548381,"sku":"QHY-QHY90A","price":4157.0,"currency_code":"CAD","in_stock":true}]},{"product_id":"qhyccd-qhy16200a-mono","title":"QHYCCD QHY16200A Mono","description":"\u003c!-- more --\u003e\u003cp\u003e\u003cstrong\u003eThe QHY16200A\u003c\/strong\u003e uses a unique APS-H size CCD sensor, a product of close collaboration between QHYCCD and the sensor supplier.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThis sensor is specially designed and manufactured with amateur astronomers in mind who wanted a mono sensor larger than APS-C.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAPS-H Format CCD Sensor:\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\u003c\/strong\u003eThe effective image area is 27mm x 21.6mm. Compared to the QHY8L APS-C format of 23.4 x 15.8, the APS-H sensor is significantly larger with over 50% larger image area.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe reason for desiring an APS-H size mono sensor is that there are no other existing mono sensors in size between the KAF-8300 (4\/3inch) and the KAI-11002 (35mm format).\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThis sensor has 16 Megapixels and the APS-H format is suitable for most telescopes, including SCT's that cannot fully illuminate a 35mm frame without some vignetting or distortion at the edges.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eIt is also suitable for commonly available 2inch filters.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe pixel size of this sensor is 6.0um x 6.0um, slightly bigger than the KAF-8300's 5.4um but, due to the larger size of the sensor, it has nearly twice as many pixels as the 8300.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe QE is similar to or higher than 8300 and the 37ke- full well capacity is almost 50% greater than the 8300's 25.5ke-.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eSince the read noise is comparable to the 8300, the dynamic range can be calculated at about 1.5X greater than the 8300.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThis sensor also comes in a color version on request.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e\"A\" Series Camera - Fully Integrated:\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\u003c\/strong\u003eThe QHY16200A belongs to the new QHYCCD \"A\" series camera family. \"A\" stands for \"ALL-IN-ONE\".\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe camera includes a built-in motor driven filter wheel and natively supports the QHYOAG.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe OAG can be installed on the camera solidly with six screws, consuming a minimum of back focus, precious for some optical systems.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe filter wheels available for the QHY16200A accept 2\" mounted filters, or 50mm unmounted round filters, in carousels with 5 or 7 positions.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe camera is compatible with the medium size QHYOAG.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eIn addition to the filter wheel and OAG, this \"A\" series camera offers an internal USB HUB (2.0) that provides two USB host port and a USB to dual RS232 converter.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eA guiding camera, mount and electric focuser can be connected directly to the camera instead of the computer to reduce cable clutter and the chance of signal loss due to the long cables. Only a single USB cable is needed to control all the peripherals.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eButterfly Shutter - long life, uniform illumination and automatic dark frames:\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\u003c\/strong\u003eThis camera uses a mechanical shutter that has a butterfly shape. The shutter is directly driven by a motor with no other moving parts.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe working life is almost unlimited. The shutter has two sides that block light and open spaces in between.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe fan shape of the blades create even-illumination when opening, and even-darkness when closing for dark frames.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThis feature is of great benefit when taking flat frames or making photometric observations.\u003c\/p\u003e\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eSpecifications\u003c\/p\u003e\n\u003cdiv\u003e\u003ctable border=\"0\" width=\"926\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ccolgroup\u003e\n\u003ccol width=\"217\"\u003e\n\u003ccol width=\"709\"\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"217\" height=\"21\"\u003eModel\u003c\/td\u003e\n\u003ctd width=\"709\"\u003eQHY16200A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"217\" height=\"21\"\u003eSensor  \u003c\/td\u003e\n\u003ctd width=\"709\"\u003eKAF-16200 APS-H Full Frame CCD (Default is Grade 2) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"217\" height=\"21\"\u003ePixel Size\u003c\/td\u003e\n\u003ctd width=\"709\"\u003e6.0um*6.0um\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"217\" height=\"21\"\u003eResolution\u003c\/td\u003e\n\u003ctd width=\"709\"\u003e4540（H）*3630（V）\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"217\" height=\"21\"\u003eEffective Pixels\u003c\/td\u003e\n\u003ctd width=\"709\"\u003e16.2 Megapixels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"217\" height=\"21\"\u003eEffective Image Area\u003c\/td\u003e\n\u003ctd width=\"709\"\u003e27.0mm*21.6mm   APS-H format\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"217\" height=\"21\"\u003eReadout Type\u003c\/td\u003e\n\u003ctd width=\"709\"\u003eProgressive Scan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"217\" height=\"21\"\u003eReadout Noise\u003c\/td\u003e\n\u003ctd width=\"709\"\u003eTypical 10 e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"217\" height=\"21\"\u003eSystem Gain\u003c\/td\u003e\n\u003ctd width=\"709\"\u003e0.7e-\/ADU at lowest Gain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"217\" height=\"21\"\u003eFullwell\u003c\/td\u003e\n\u003ctd width=\"709\"\u003e41ke-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"217\" height=\"21\"\u003eAnti-Blooming Gate\u003c\/td\u003e\n\u003ctd width=\"709\"\u003e2000x Saturation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"217\" height=\"21\"\u003eExposure Time Range\u003c\/td\u003e\n\u003ctd width=\"709\"\u003e1ms-10000sec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"217\" height=\"21\"\u003eAD Sample Depth\u003c\/td\u003e\n\u003ctd width=\"709\"\u003e16-bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"217\" height=\"21\"\u003eSensor Size\u003c\/td\u003e\n\u003ctd width=\"709\"\u003eAPS-H Format\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"217\" height=\"21\"\u003ePixel Binning\u003c\/td\u003e\n\u003ctd width=\"709\"\u003e1x1, 2x2, 4x4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"217\" height=\"21\"\u003eExposure Time\u003c\/td\u003e\n\u003ctd width=\"709\"\u003e1ms-10000sec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"217\" height=\"21\"\u003eCooling System\u003c\/td\u003e\n\u003ctd width=\"709\"\u003eDual Stage TEC Cooler (-40C below Ambient)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"217\" height=\"21\"\u003eShutter Type\u003c\/td\u003e\n\u003ctd width=\"709\"\u003eEven-illumination Butter-Fly Mechanical Shutter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"217\" height=\"21\"\u003eColor \/ Monochrom\u003c\/td\u003e\n\u003ctd width=\"709\"\u003eMonochrome Only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"217\" height=\"21\"\u003eQHYOAG interface\u003c\/td\u003e\n\u003ctd width=\"709\"\u003eSix M3 screw thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\" width=\"217\" height=\"41\"\u003eBuild-in Filter Wheel\u003c\/td\u003e\n\u003ctd width=\"709\"\u003eQHY16200A-CFW5:  Five Position 2inch\/50mm round filter wheel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd width=\"709\" height=\"21\"\u003eQHY16200A-CFW7:  Seven Position 2inch\/50mm round filter wheel\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"4\" width=\"217\" height=\"81\"\u003eSupported Filters\u003c\/td\u003e\n\u003ctd width=\"709\"\u003e2-inch mounted filters, 5-positions: Maxium 6mm filter   cell thickness (threads of the filter cell not included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd width=\"709\" height=\"20\"\u003e2-inch mounted filters, 7-positions: Maxium 9mm filter cell thickness (threads of the filter cell not included)\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd width=\"709\" height=\"20\"\u003e50mm unmounted filters, 5-positions: 1-5mm thickness\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd width=\"709\" height=\"21\"\u003e50mm unmounted filters, 7-positions: 1-8mm thickness\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\" width=\"217\" height=\"41\"\u003eMoisture Control\u003c\/td\u003e\n\u003ctd width=\"709\"\u003eConnector for removable silica gel tube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd width=\"709\" height=\"21\"\u003eHeated optical window\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"217\" height=\"25\"\u003ePower consumption\u003c\/td\u003e\n\u003ctd rowspan=\"2\" width=\"709\"\u003e0% cooling 8W     50% cooling 16.5W    100% cooling 27W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd width=\"217\" height=\"21\"\u003e12VDC\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"217\" height=\"21\"\u003eTelescope Interface\u003c\/td\u003e\n\u003ctd width=\"709\"\u003eM54\/0.75 Female Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"217\" height=\"21\"\u003eBack Focal Length\u003c\/td\u003e\n\u003ctd width=\"709\"\u003e34mm（±0.5）\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"217\" height=\"21\"\u003eQHY16200A Electric Interface\u003c\/td\u003e\n\u003ctd width=\"709\"\u003eUSB Slave Port x1    USB host port x2    RS232  3pin port x2   2.1mm 12V DC port x2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\" width=\"217\" height=\"41\"\u003eWeight\u003c\/td\u003e\n\u003ctd width=\"709\"\u003e1550g (standard CFW5 version), no OAG included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd width=\"709\" height=\"21\"\u003e2330g (CFW7 version), no OAG included\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eIn the Box\u003c\/p\u003e\n\u003cdiv\u003e 12V power cable 12V car power adapter USB cable Grounding cable T-ring(2 inch to M54\/0.75) Drying tube Desiccant USB hub bypass board Screw driver for M2 hexagon screw Screw driver for M3 hexagon screw Screws for fixing filter frame and filter Inspection report Camera \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"QHYCCD","offers":[{"title":"CFW5","offer_id":44967212581149,"sku":"QHY-100045","price":6159.0,"currency_code":"CAD","in_stock":true},{"title":"CFW7","offer_id":44967212613917,"sku":"QHY-100102","price":6775.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/QHYCCD-QHY16200A-Mono-CFW5-1__36484.1595653771.1280.1280.jpg?v=1684339230"},{"product_id":"qhyccd-qhy695a-mono","title":"QHYCCD QHY695A Mono","description":"\u003c!-- more --\u003e\u003ch2\u003eSony ICX695 ExView II CCD\u003c\/h2\u003e\u003cp\u003eThe QHY695A uses the Sony ICX695 ExView II CCD, a 1-inch, 6 megapixel sensor with a peak QE close to 80%.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe read noise is as low as 4 electrons.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eWith the two-stage TEC reducing the sensor temperature to -40C below ambient, and the extremely low thermal noise of this CCD, this camera produces an exceptionally clean image.\u003c\/p\u003e\u003ch2\u003e\"A\" Series Camera –Fully Integrated with Filter Wheel\u003c\/h2\u003e\u003cp\u003eThe QHY695A belongs to the new QHYCCD \"A\" series camera family. \"A\" stands for \"ALL-IN-ONE\". \u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eIt includes a built-in motor driven filter wheel and it natively supports the medium size QHYOAG. The OAG can be installed on the camera solidly with six screws consuming a minimum of back focus, precious for some optical systems.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe filter wheel in QHY695A has 7-positions for 36mm unmounted filters, or an alternative carousel with 8-positions for 1.25” mounted filters.\u003c\/p\u003e\u003ch2\u003eInternal USB Hub\u003c\/h2\u003e\u003cp\u003eIn addition to the filter wheel and OAG, the \"A\" series camera also offers an internal USB HUB(2.0) providing two USB host ports and a USB to dual RS232 converter.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eA guiding camera, mount and electric focuser can be connected directly to this camera instead of the computer to reduce cable clutter and the chance of signal loss due to the long cables.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eA single USB cable controls all of the peripherals.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003ch2\u003eSingle 12V power socket\u003c\/h2\u003e\u003cp\u003eThis camera uses a single 12V IN power port.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe power socket is threaded for a solid connection that will not accidentally disconnect.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThere is another socket connected in parallel with the input that can be used to supply 12V OUT to other devices.\u003c\/p\u003e\u003ch2\u003eButterfly Shutter - long life and uniform illumination\u003c\/h2\u003e\u003cp\u003eAlthough the sensor has electronic shutter, this camera also has a mechanical shutter.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThis makes it possible to automatically take dark frames, unattended.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe shutter is directly driven by a motor with no other moving parts.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe working life is almost unlimited. The shutter has two sides that block light and open spaces in between.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe fan shape of the blades creates even-illumination when opening, and even-darkness when closing for dark frames.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThis feature is of great benefit when taking flat frames or making photometric measurements.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eSpecifications\u003c\/p\u003e\n\u003cdiv\u003e\u003ctable border=\"0\" width=\"1000\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ccolgroup\u003e\n\u003ccol width=\"260\"\u003e\n\u003ccol width=\"740\"\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"260\" height=\"21\"\u003eModel\u003c\/td\u003e\n\u003ctd width=\"740\"\u003eQHY695A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"260\" height=\"21\"\u003eSensor  \u003c\/td\u003e\n\u003ctd width=\"740\"\u003eSONY ICX695 ExView II CCD \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"260\" height=\"21\"\u003ePixel Size\u003c\/td\u003e\n\u003ctd width=\"740\"\u003e4.54um*4.54um\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"260\" height=\"21\"\u003eResolution\u003c\/td\u003e\n\u003ctd width=\"740\"\u003e2758(H)*2208(V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"260\" height=\"21\"\u003eEffective Pixels\u003c\/td\u003e\n\u003ctd width=\"740\"\u003e6 Megapixels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"260\" height=\"21\"\u003eEffective Image Area\u003c\/td\u003e\n\u003ctd width=\"740\"\u003e14.6mm(H)*12.8mm(V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"260\" height=\"21\"\u003eReadout Type\u003c\/td\u003e\n\u003ctd width=\"740\"\u003eProgressive Scan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"260\" height=\"21\"\u003eFullwell\u003c\/td\u003e\n\u003ctd width=\"740\"\u003e15-20ke-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"260\" height=\"21\"\u003eReadout Noise\u003c\/td\u003e\n\u003ctd width=\"740\"\u003e4e-5e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"260\" height=\"21\"\u003ePixel Binning\u003c\/td\u003e\n\u003ctd width=\"740\"\u003e1x1, 2x2, 4x4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"260\" height=\"21\"\u003eExposure Time\u003c\/td\u003e\n\u003ctd width=\"740\"\u003e1ms-10000sec\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"260\" height=\"21\"\u003eCooling System\u003c\/td\u003e\n\u003ctd width=\"740\"\u003eDual Stage TEC Cooler (-45C below ambient)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"260\" height=\"21\"\u003eShutter Type\u003c\/td\u003e\n\u003ctd width=\"740\"\u003eElectric Global Shutter plus mechanical shutter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"260\" height=\"21\"\u003eOAG Interface\u003c\/td\u003e\n\u003ctd width=\"740\"\u003eSix M3 screw thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"260\" height=\"21\"\u003ePower Consumption\u003c\/td\u003e\n\u003ctd width=\"740\"\u003e0% TECpower 8w, 50% TEC power 16.5 w, 100% TEC power 27 w\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"260\" height=\"21\"\u003eAD Sample Depth\u003c\/td\u003e\n\u003ctd width=\"740\"\u003e16 bit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"260\" height=\"21\"\u003eSensor Size\u003c\/td\u003e\n\u003ctd width=\"740\"\u003eTypical 1-inch optical format\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"260\" height=\"21\"\u003eColor \/ Monochrome\u003c\/td\u003e\n\u003ctd width=\"740\"\u003eMonochrome Only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"260\" height=\"21\"\u003eBuild-in Filter wheel\u003c\/td\u003e\n\u003ctd width=\"740\"\u003e8-position, 1.25inch or 7-position, 36mm unmounted \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"260\" height=\"21\"\u003eBuild-in Anti-Dew Heater\u003c\/td\u003e\n\u003ctd width=\"740\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"260\" height=\"21\"\u003eTelescope Interface\u003c\/td\u003e\n\u003ctd width=\"740\"\u003eM42\/0.75 Female Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"260\" height=\"21\"\u003eBack Focal Length\u003c\/td\u003e\n\u003ctd width=\"740\"\u003e33mm（±0.5）\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"260\" height=\"21\"\u003eWeight\u003c\/td\u003e\n\u003ctd width=\"740\"\u003e1367g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eIn the Box\u003c\/p\u003e\n\u003cdiv\u003e\u003cul\u003e\n\u003cli\u003e12V power cable\u003c\/li\u003e\n\u003cli\u003e12V car power adapter\u003c\/li\u003e\n\u003cli\u003eUSB cable\u003c\/li\u003e\n\u003cli\u003eGrounding cable\u003c\/li\u003e\n\u003cli\u003eM42 to 2 inch adapter ring\u003c\/li\u003e\n\u003cli\u003eDrying tube\u003c\/li\u003e\n\u003cli\u003eDesiccant\u003c\/li\u003e\n\u003cli\u003eUSB hub bypass board\u003c\/li\u003e\n\u003cli\u003eScrew driver for M2 hexagon screw\u003c\/li\u003e\n\u003cli\u003eScrew driver for M3 hexagon screw\u003c\/li\u003e\n\u003cli\u003eScrews for fixing filter frame and filter\u003c\/li\u003e\n\u003cli\u003eInspection report\u003c\/li\u003e\n\u003cli\u003eCamera\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"QHYCCD","offers":[{"title":"8x1.25\"","offer_id":44967212646685,"sku":"QHY-100060-1.25","price":4465.0,"currency_code":"CAD","in_stock":true},{"title":"7x36mm","offer_id":44967212679453,"sku":"QHY-100060-36","price":4465.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/QHYCCD-QHY695A-Mono-1__15021.1595642739.1280.1280.jpg?v=1684339236"},{"product_id":"qhyccd-qhy814a-mono","title":"QHYCCD QHY814A Mono","description":"\u003c!-- more --\u003e\u003ch2\u003e\"A\" Series Camera –Fully Integrated with Filter Wheel\u003c\/h2\u003e\u003cp\u003eThe QHY695A belongs to the new QHYCCD \"A\" series camera family. \"A\" stands for \"ALL-IN-ONE\". \u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eIt includes a built-in motor driven filter wheel and it natively supports the medium size QHYOAG. The OAG can be installed on the camera solidly with six screws consuming a minimum of back focus, precious for some optical systems.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe filter wheel in QHY695A has 7-positions for 36mm unmounted filters, or an alternative carousel with 8-positions for 1.25” mounted filters.\u003c\/p\u003e\u003ch2\u003eInternal USB Hub\u003c\/h2\u003e\u003cp\u003eIn addition to the filter wheel and OAG, the \"A\" series camera also offers an internal USB HUB(2.0) providing two USB host ports and a USB to dual RS232 converter.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eA guiding camera, mount and electric focuser can be connected directly to this camera instead of the computer to reduce cable clutter and the chance of signal loss due to the long cables.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eA single USB cable controls all of the peripherals.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003ch2\u003eSingle 12V power socket\u003c\/h2\u003e\u003cp\u003eThis camera uses a single 12V IN power port.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe power socket is threaded for a solid connection that will not accidentally disconnect.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThere is another socket connected in parallel with the input that can be used to supply 12V OUT to other devices.\u003c\/p\u003e\u003ch2\u003eButterfly Shutter - long life and uniform illumination\u003c\/h2\u003e\u003cp\u003eAlthough the sensor has electronic shutter, this camera also has a mechanical shutter.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThis makes it possible to automatically take dark frames, unattended.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe shutter is directly driven by a motor with no other moving parts.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe working life is almost unlimited. The shutter has two sides that block light and open spaces in between.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThe fan shape of the blades creates even-illumination when opening, and even-darkness when closing for dark frames.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003eThis feature is of great benefit when taking flat frames or making photometric measurements.\u003cspan class=\"Apple-converted-space\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eSpecifications\u003c\/p\u003e\n\u003cdiv\u003e\u003ctable cellspacing=\"0\" cellpadding=\"0\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eMODEL\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eQHY814A\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eCCD Sensor\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eSONY ICX814 CCD Sensor\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003ePixel Size\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e3.69um*3.69um\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eResolution\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e3468*2728\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eEffective Pixels\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e9.2 Megapixels\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eEffective Image Area\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e14.6mm*12.8mm\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eFullwell\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e15-20ke-\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003ePeak QE\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e79% \u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eReadout Noise\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e4e- to 5e-\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eAD Sample Depth\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e16-bit\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eSensor Size\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eTypical 1-inch optical format\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eColor\/Monochrome\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eMonochrome Only\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eCooling System\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eDual Stage TEC（-40C Below Ambient）\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eBuilt-in Motor Driven Filter Wheel\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e8 position 1.25inch (7 position 36mm can be request also)\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eComputer Interface\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eUSB2.0\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eShutter Type\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eElectric Global Shutter plus a Mechanical Shutter\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eAnti-Dew Heater Window\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eYes\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eQHYOAG interface\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eSix M3 Screw Thread\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003ePower Consumption\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e0% TEC power 8w , 50% TEC power 16.5 w , 100% TEC power 27 w\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eTelescope Interface\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eM42\/0.75 Female Thread\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eBack Focal Lenth\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e32.5mm（±0.5）\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eWeight\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e1367g\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eIn the Box\u003c\/p\u003e\n\u003cdiv\u003e\u003cul\u003e\n\u003cli\u003e12V power cable\u003c\/li\u003e\n\u003cli\u003e12V car power adapter\u003c\/li\u003e\n\u003cli\u003eUSB cable\u003c\/li\u003e\n\u003cli\u003eGrounding cable\u003c\/li\u003e\n\u003cli\u003eM42 to 2 inch adapter ring\u003c\/li\u003e\n\u003cli\u003eDrying tube\u003c\/li\u003e\n\u003cli\u003eDesiccant\u003c\/li\u003e\n\u003cli\u003eUSB hub bypass board\u003c\/li\u003e\n\u003cli\u003eScrew driver for M2 hexagon screw\u003c\/li\u003e\n\u003cli\u003eScrew driver for M3 hexagon screw\u003c\/li\u003e\n\u003cli\u003eScrews for fixing filter frame and filter\u003c\/li\u003e\n\u003cli\u003eInspection report\u003c\/li\u003e\n\u003cli\u003eCamera\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"QHYCCD","offers":[{"title":"8x1.25\"","offer_id":44967212744989,"sku":"QHY-110017-1.25","price":5389.0,"currency_code":"CAD","in_stock":true},{"title":"7x36mm","offer_id":44967212777757,"sku":"QHY-110017-36","price":5389.0,"currency_code":"CAD","in_stock":true}]},{"product_id":"qhyccd-oag","title":"QHYCCD OAG","description":"\u003c!-- more --\u003e\u003cp\u003e\u003cspan class=\"Apple-converted-space\"\u003e\u0026amp;nbsp,\u003c\/span\u003eThere are three models of QHYOAG:\u0026amp;nbsp, QHYOAG-S, QHYOAG-M, and QHYOAG-L for different size sensors.\u003cspan class=\"Apple-converted-space\"\u003e\u0026amp;nbsp, \u003c\/span\u003eThe QHYOAG is a thin and solid design. The OAG main body is just 10mm thick.\u0026amp;nbsp, Adding an M42 thread or M54 adapter ring adds only 3mm for a total thickness of 13mm.\u0026amp;nbsp, There are six 3mm through holes in the OAG for direct connection to the QHYCFW2 and\u0026amp;nbsp,QHY \"A\" series cameras.\u0026amp;nbsp, If you do not have a QHYCFW2 or QHY \"A\" series camera, you can also use this OAG with a third-party adapter ring on the camera side.\u003cspan class=\"Apple-converted-space\"\u003e\u0026amp;nbsp, \u003c\/span\u003eThe QHYOAG comes with a multi-thread 1.25-inch focuser. The focuser has a locking thumbscrew to hold the guide camera fixed after focusing.\u003cspan class=\"Apple-converted-space\"\u003e\u0026amp;nbsp, \u003c\/span\u003eThe prism position can be adjusted and can be locked to fix its position.\u0026amp;nbsp, The prism is 8mm x 8mm size and the aperture between the prism and mirror is 8mm in diameter.\u003c\/p\u003e\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eSpecifications\u003c\/p\u003e\n\u003cdiv\u003e\u003ctable border=\"0\" width=\"1721\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ccolgroup\u003e\n\u003ccol width=\"315\"\u003e\n\u003ccol width=\"373\"\u003e\n\u003ccol width=\"509\"\u003e\n\u003ccol width=\"524\"\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"315\" height=\"23\"\u003eModel\u003c\/td\u003e\n\u003ctd width=\"373\"\u003eQHYOAG-S\u003c\/td\u003e\n\u003ctd width=\"509\"\u003eQHYOAG-M\u003c\/td\u003e\n\u003ctd width=\"524\"\u003eQHYQAG-L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"315\" height=\"23\"\u003eTelescope Interface\u003c\/td\u003e\n\u003ctd width=\"373\"\u003eM42\/0.75\u003c\/td\u003e\n\u003ctd width=\"509\"\u003eM54\/0.75\u003c\/td\u003e\n\u003ctd width=\"524\"\u003eM60\/0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"315\" height=\"23\"\u003eDiameter of 6 x M3 screw hole positions\u003c\/td\u003e\n\u003ctd width=\"373\"\u003e54mm\u003c\/td\u003e\n\u003ctd width=\"509\"\u003e62mm\u003c\/td\u003e\n\u003ctd width=\"524\"\u003e68mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"315\" height=\"23\"\u003eSuitable for CCD\/CMOS Size\u003c\/td\u003e\n\u003ctd width=\"373\"\u003e4\/3-inch\u003c\/td\u003e\n\u003ctd width=\"509\"\u003eAPS-C, APS-H, 36 x 24mm\u003c\/td\u003e\n\u003ctd width=\"524\"\u003e36 x 24mm, 37 x 37mm, 48 x 36mm, (50100 CCD requires special adapter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"315\" height=\"23\"\u003eCompatible Products\u003c\/td\u003e\n\u003ctd width=\"373\"\u003eQHY90A, QHY695A, QHYCFW2-S, QHY183, QHY163\u003c\/td\u003e\n\u003ctd width=\"509\"\u003eQHY16200A, QHYCFW2-M, QHY165C, QHY128C, QHY247C, QHY367C\u003c\/td\u003e\n\u003ctd width=\"524\"\u003eQHY16803, QHY09000, QHYCFW-L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"315\" height=\"23\"\u003eGuide Camera Interface\u0026amp;nbsp,\u003c\/td\u003e\n\u003ctd width=\"373\"\u003e1.25-inch\u003c\/td\u003e\n\u003ctd width=\"509\"\u003e1.25-inch\u003c\/td\u003e\n\u003ctd width=\"524\"\u003e1.25-inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"315\" height=\"23\"\u003eWeight\u003c\/td\u003e\n\u003ctd width=\"373\"\u003e127g\u003c\/td\u003e\n\u003ctd width=\"509\"\u003e145g\u003c\/td\u003e\n\u003ctd width=\"524\"\u003e149g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eIn the Box\u003c\/p\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"QHYCCD","offers":[{"title":"OAG-M","offer_id":44967212876061,"sku":"QHY-100094","price":322.0,"currency_code":"CAD","in_stock":true},{"title":"OAG-M for 16200A","offer_id":44967212908829,"sku":"QHY-100101","price":322.0,"currency_code":"CAD","in_stock":true},{"title":"OAG-S","offer_id":44967212941597,"sku":"QHY-100073","price":252.0,"currency_code":"CAD","in_stock":true},{"title":"OAG-L","offer_id":44967212974365,"sku":"QHY-100075","price":392.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/16912_source_1595641578.jpg?v=1684339042"},{"product_id":"qhyccd-qhy2020-bsi-scientific-cmos-camera","title":"QHYCCD QHY2020 BSI Scientific CMOS Camera","description":"\u003c!-- more --\u003eQHYCCD QHY2020 BSI Scientific CMOS Camera","brand":"QHYCCD","offers":[{"title":"Class 1","offer_id":44967213007133,"sku":"QHY-QHY2020C1","price":11200.0,"currency_code":"CAD","in_stock":true},{"title":"Class 2","offer_id":44967213039901,"sku":"QHY-QHY2020C2","price":8400.0,"currency_code":"CAD","in_stock":true}]},{"product_id":"qhyccd-qhy4040-fsi-scientific-cmos-camera","title":"QHYCCD QHY4040 FSI Scientific CMOS Camera","description":"\u003c!-- more --\u003eQHYCCD QHY4040 FSI Scientific CMOS Camera","brand":"QHYCCD","offers":[{"title":"Class 1","offer_id":44967213105437,"sku":"QHY-QHY4040C1","price":19320.0,"currency_code":"CAD","in_stock":true},{"title":"Class 2","offer_id":44967213138205,"sku":"QHY-QHY4040C2","price":17892.0,"currency_code":"CAD","in_stock":true}]},{"product_id":"qhyccd-qhy6060-bsi-fsi-scientific-cmos-camera","title":"QHYCCD QHY6060 BSI\/FSI Scientific CMOS Camera","description":"\u003c!-- more --\u003eQHYCCD QHY6060 BSI\/FSI Scientific CMOS Camera","brand":"QHYCCD","offers":[{"title":"BSI \/ Class 2","offer_id":44967213170973,"sku":"QHY-QHY6060BSIC2","price":175000.0,"currency_code":"CAD","in_stock":true},{"title":"BSI \/ Class 3","offer_id":44967213203741,"sku":"QHY-QHY6060BSIC3","price":124600.0,"currency_code":"CAD","in_stock":true},{"title":"FSI \/ Class 1","offer_id":44967213236509,"sku":"QHY-QHY6060FSIC1","price":123200.0,"currency_code":"CAD","in_stock":true},{"title":"FSI \/ Class 2","offer_id":44967213269277,"sku":"QHY-QHY6060FSIC2","price":64400.0,"currency_code":"CAD","in_stock":true},{"title":"FSI \/ Class 3","offer_id":44967213302045,"sku":"QHY-QHY6060FSIC3","price":56000.0,"currency_code":"CAD","in_stock":true},{"title":"BSI \/ Class 1","offer_id":44967213334813,"sku":"QHY-QHY6060BSIC1","price":175000.0,"currency_code":"CAD","in_stock":true}]},{"product_id":"qhyccd-qhy42-bsi-fsi-uv-scientific-cmos-camera","title":"QHYCCD QHY42 BSI\/FSI\/UV Scientific CMOS Camera","description":"\u003c!-- more --\u003eQHYCCD QHY42 BSI\/FSI\/UV Scientific CMOS Camera","brand":"QHYCCD","offers":[{"title":"BSI UV \/ Class 2 \/ Uncooled","offer_id":44967213367581,"sku":"QHY-110033","price":11301.0,"currency_code":"CAD","in_stock":true},{"title":"BSI \/ Class 1 \/ Cooled","offer_id":44967213400349,"sku":"QHY-110020","price":19390.0,"currency_code":"CAD","in_stock":true},{"title":"BSI \/ Class 2 \/ Cooled","offer_id":44967213433117,"sku":"QHY-110022","price":12726.0,"currency_code":"CAD","in_stock":true},{"title":"BSI \/ Class 3 \/ Cooled","offer_id":44967213465885,"sku":"QHY-110024","price":10606.0,"currency_code":"CAD","in_stock":true},{"title":"FSI \/ Class 1 \/ Cooled","offer_id":44967213498653,"sku":"QHY-110026","price":10500.0,"currency_code":"CAD","in_stock":true},{"title":"FSI \/ Class 2 \/ Cooled","offer_id":44967213531421,"sku":"QHY-110028","price":8064.0,"currency_code":"CAD","in_stock":true},{"title":"BSI \/ Class 1 \/ Uncooled","offer_id":44967213564189,"sku":"QHY-110021","price":17220.0,"currency_code":"CAD","in_stock":true},{"title":"BSI \/ Class 2 \/ Uncooled","offer_id":44967213596957,"sku":"QHY-110023","price":11301.0,"currency_code":"CAD","in_stock":true},{"title":"BSI \/ Class 3 \/ Uncooled","offer_id":44967213629725,"sku":"QHY-110025","price":9419.0,"currency_code":"CAD","in_stock":true},{"title":"FSI \/ Class 1 \/ Uncooled","offer_id":44967213662493,"sku":"QHY-110027","price":8512.0,"currency_code":"CAD","in_stock":true},{"title":"BSI UV \/ Class 1 \/ Uncooled","offer_id":44967213695261,"sku":"QHY-110031","price":17220.0,"currency_code":"CAD","in_stock":true},{"title":"BSI UV \/ Class 1 \/ Cooled","offer_id":44967213728029,"sku":"QHY-110030","price":19390.0,"currency_code":"CAD","in_stock":true},{"title":"BSI UV \/ Class 2 \/ Cooled","offer_id":44967213760797,"sku":"QHY-110032","price":12726.0,"currency_code":"CAD","in_stock":true},{"title":"FSI \/ Class 3 \/ Cooled","offer_id":44967213793565,"sku":"QHY-QHY42FSIC3C","price":19390.0,"currency_code":"CAD","in_stock":true},{"title":"FSI \/ Class 2 \/ Uncooled","offer_id":44967213826333,"sku":"QHY-110029","price":7644.0,"currency_code":"CAD","in_stock":true},{"title":"FSI \/ Class 3 \/ Uncooled","offer_id":44967213859101,"sku":"QHY-QHY42FSIC3","price":19390.0,"currency_code":"CAD","in_stock":true},{"title":"BSI UV \/ Class 3 \/ Uncooled","offer_id":44967213891869,"sku":"QHY-QHY42UVC3","price":19390.0,"currency_code":"CAD","in_stock":true},{"title":"BSI UV \/ Class 3 \/ Cooled","offer_id":44967213924637,"sku":"QHY-QHY42UVC3C","price":19390.0,"currency_code":"CAD","in_stock":true}]},{"product_id":"qhyccd-qhy16803a-mono","title":"QHYCCD QHY16803A Mono","description":"\u003c!-- more --\u003e\u003cp\u003eThe QHY16803A camera is a large format astronomical CCD camera using the well-known 16 Megapixel KAF-16803 CCD, popular with both advanced amateurs and professionals.  The image area is just over 36mm x 36mm.  It uses an even-illumination mechanical shutter for photometric quality darks and flats.  This shutter is operated by direct drive and has an extraordinarily long life with no other moving parts.    \u003c\/p\u003e\u003cp\u003eThe  KAF−16803 image sensor is a redesigned  version of the popular KAF−16801 image sensor (4096 (H) × 4096 (V) pixel resolution), with enhancements that specifically target the needs of high performance  applications.  Improvements include enhanced quantum efficiency for improved DQE at higher spatial frequencies, lower noise for improved contrast in areas of high density, and anti-blooming protection to prevent image bleed from over exposure in regions outside the area of interest.  The sensor utilizes the TRUESENSE Transparent Gate Electrode to improve sensitivity compared to the use of a standard front side illuminated polysilicon electrode, as well as microlenses to maximize light sensitivity.  When combined with large imaging area and small pixel size, the KAF−16803 provides the sensitivity, resolution and contrast necessary for high quality digital astro-images. \u003c\/p\u003e\u003ch2\u003e\"A\" Series Camera - Fully Integrated\u003c\/h2\u003e\u003cp\u003eThe QHY16803A and QHY09000A belong to the new QHYCCD \"A\" series camera family. \"A\" stands for \"ALL-IN-ONE\".  The cameras include a built-in motor driven filter wheel and natively support the large size QHYOAG.  The OAG can be installed on the camera solidly with six screws, consuming a minimum of back focus, precious for some optical systems.  The built-in filter wheel has 7 positions for 50mm square filters.  The \"A\" series cameras have an internal USB HUB(2.0) that provides two USB host port and a USB to dual RS232 converter.  A guiding camera, mount and electric focuser can be connected directly to the camera instead of the computer to reduce cable clutter and the chance of signal loss due to the long cables. Only a single USB cable is needed to control all the peripherals. \u003c\/p\u003e\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eSpecifications\u003c\/p\u003e\n\u003cdiv\u003e\u003ctable cellspacing=\"0\" cellpadding=\"0\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eModel\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eQHY16803A\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eSensor\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eKAF-16803 Full Frame CCD\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003ePixel Size\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e9um*9um\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eResolution\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e4096*4096\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eEffective Pixels\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e16.8 Megapixels\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eEffective Image Area\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e36.8mm*36.8mm\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eReadout Noise\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eTypical 13e- to 15e-\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eDark Current\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e0.05e-\/pixel\/second@ -20C\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eFullwell\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e100ke-\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eAD Sample Depth\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e16-bit\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eSupported Pixel Binning\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e1x1, 2x2, 4x4\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eExposure Time Range\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e1ms-10000sec\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eCooling System\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eRegulated Dual Stage TEC Cooler\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eShutter Type\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eButter-Fly Uniform Long Life Illumenate Mechanical Shutter\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eColor \/ Monochrome\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eMonochrome Only\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eFilter Wheel\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eBuilt-in 7 position 50mm square filter wheel\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eAnti-Dew Heater\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eYes\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eComputer Interface\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eUSB2.0\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eTelescope Interface\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eM62\/0.75\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eBack Focal Length\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e44.5mm +-0.5mm\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003eWeight (with build-in filter wheel)\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd valign=\"middle\"\u003e\u003cp\u003e3121g\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cdiv data-custom-tab\u003e\n\u003cp data-custom-tab-title\u003eIn the Box\u003c\/p\u003e\n\u003cdiv\u003e\u003cul\u003e\n\u003cli\u003e12V power cable\u003c\/li\u003e\n\u003cli\u003e12V car power adapter\u003c\/li\u003e\n\u003cli\u003eUSB cable\u003c\/li\u003e\n\u003cli\u003eGrounding cable\u003c\/li\u003e\n\u003cli\u003eM54x0.75 to 2 inch adapter ring\u003c\/li\u003e\n\u003cli\u003eDrying tube\u003c\/li\u003e\n\u003cli\u003eDesiccant\u003c\/li\u003e\n\u003cli\u003eUSB hub bypass board\u003c\/li\u003e\n\u003cli\u003eScrew driver for M2 hexagon screw\u003c\/li\u003e\n\u003cli\u003eScrew driver for M3 hexagon screw\u003c\/li\u003e\n\u003cli\u003eScrews for fixing filter frame and filter\u003c\/li\u003e\n\u003cli\u003eInspection report\u003c\/li\u003e\n\u003cli\u003eCamera\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":44967213990173,"sku":"QHY-QHY16803A","price":15246.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/QHYCCD-QHY16803A-Mono__48608.1595653772.1280.1280.jpg?v=1684339239"},{"product_id":"william-optics-50mm-guiding-scope","title":"William Optics 50mm Guiding Scope","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e50mm Aperture Doublet Lens\u003c\/li\u003e\n\u003cli\u003e200mm Focal Length\u003c\/li\u003e\n\u003cli\u003ef\/4.0 Focal Ratio\u003c\/li\u003e\n\u003cli\u003e1.25\" RotoLock Eyepiece Holder\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.42 kg \/ 0.93 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics 50mm Guiding Scope\u003c\/h2\u003e\n\u003cp\u003eThe William Optics 50mm Guiding Scope combines a 50mm doublet objective with a fast f\/4.0 focal ratio to deliver a wide field of view for reliable autoguiding. Its 200mm focal length is optimized for finding guide stars easily, while the entire optical tube weighs only 0.42 kg (0.93 lbs), adding minimal load to your mount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eWide-Field Guiding: A Fast f\/4.0, 200mm Optical System\u003c\/h3\u003e\n\u003cp\u003eThe core of this guide scope is its 50mm f\/4.0 optical system. This combination produces a 200mm focal length that yields a very wide field of view, dramatically increasing the odds of finding a suitable guide star in any part of the sky without having to re-frame your primary target. The fully multi-coated doublet lens ensures bright, high-contrast star images for your guide camera, enabling a stronger lock and more precise corrections.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSecure \u0026amp; Lightweight: 1.25\" RotoLock at Just 0.42 kg\u003c\/h3\u003e\n\u003cp\u003eWeighing a mere 0.42 kg, this guide scope minimizes its impact on your mount's payload and reduces the potential for system flexure. A key feature is the integrated 1.25\" RotoLock adapter, a superior alternative to simple thumbscrews. The RotoLock provides a secure, self-centering grip on your guide camera, ensuring it remains perfectly aligned with the optical axis throughout your imaging session for consistent, error-free guiding.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the William Optics 50mm Guiding Scope's f\/4.0 focal ratio beneficial?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe fast \u003cstrong\u003ef\/4.0 focal ratio\u003c\/strong\u003e, combined with the \u003cstrong\u003e200mm focal length\u003c\/strong\u003e, creates a very wide field of view. This allows your guide camera to see a larger patch of sky, dramatically increasing the number of potential guide stars available and making setup faster.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 1.25\" RotoLock adapter on the William Optics scope improve guiding?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e1.25\" RotoLock\u003c\/strong\u003e provides a secure, self-centering connection for your guide camera. Unlike thumbscrews that can cause tilt, the RotoLock ensures the camera sensor is perfectly aligned with the optical axis, which is critical for preventing guiding errors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 0.42 kg weight of the William Optics Guiding Scope significant?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. At only \u003cstrong\u003e0.42 kg (0.93 lbs)\u003c\/strong\u003e, the scope adds minimal weight and torque to your imaging setup. This reduces the risk of mechanical flexure and ensures your mount's tracking performance isn't compromised by an unnecessarily heavy accessory.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this 50mm guide scope with my 8\" SCT for imaging galaxies like M81?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is an excellent pairing. The \u003cstrong\u003e200mm focal length\u003c\/strong\u003e provides a good image scale for guiding an SCT. The wide field makes finding a suitable guide star near a relatively small target like the Bode's Galaxy (M81) much easier than with a longer, narrower guide scope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 200mm focal length precise enough for my wide-field refractor imaging the Cygnus Loop?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The \u003cstrong\u003e200mm focal length\u003c\/strong\u003e is a perfect match for wide-field imaging. It provides more than enough guiding accuracy for shorter focal length refractors, ensuring round stars across large mosaics of targets like the Veil Nebula complex (NGC 6960, etc.) without being overly sensitive to atmospheric seeing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen would an Off-Axis Guider be better than the William Optics 50mm scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile this 50mm guide scope is excellent for most systems, an Off-Axis Guider (OAG) is often preferred for very long focal length instruments (e.g., large RCs or SCTs) to eliminate differential flexure. An OAG samples the same light path as the imaging camera, correcting for any mirror shift that a separate guide scope cannot see.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e200 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/4.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Type\u003c\/td\u003e\n\u003ctd\u003eDoublet Lens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Length\u003c\/td\u003e\n\u003ctd\u003e252 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.42 kg \/ 0.93 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics 50mm Guiding Scope\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1.25\" RotoLock Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Black","offer_id":44967214022941,"sku":"WO-M-G50NCIII","price":246.0,"currency_code":"CAD","in_stock":true},{"title":"Grey","offer_id":44967214055709,"sku":"WO-M-G50BWIII","price":213.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/William-Optics-50mm-Guide-Scope-1.jpg?v=1722279442"},{"product_id":"william-optics-slide-base-uniguide-50mm-scope","title":"William Optics Slide-Base UniGuide 50mm Scope","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e50mm Aperture Doublet Lens\u003c\/li\u003e\n\u003cli\u003e200mm Focal Length (f\/4.0)\u003c\/li\u003e\n\u003cli\u003eIntegrated 1.25\" RotoLock Adapter\u003c\/li\u003e\n\u003cli\u003eSlide-Base for William Optics Handles\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.5 kg \/ 1.1 lbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics Slide-Base UniGuide 50mm Scope\u003c\/h2\u003e\n\u003cp\u003eThe William Optics Slide-Base UniGuide 50mm Scope combines a fast f\/4.0 optical system with a 200mm focal length to deliver a bright, wide field of view ideal for autoguiding. Its 50mm doublet lens gathers ample light for tracking faint guide stars, while the entire assembly weighs just 0.5 kg (1.1 lbs), adding minimal load to your imaging setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e50mm f\/4.0 Optics: Bright Stars Across a Wide Field\u003c\/h3\u003e\n\u003cp\u003eFinding a suitable guide star is simplified with the UniGuide's optical design. The 50mm aperture and fast f\/4.0 focal ratio produce bright, sharp star fields, ensuring your autoguider has plenty of targets to choose from. The 200mm focal length provides an ideal image scale for guiding short-to-medium focal length imaging telescopes with precision.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoublet Lens:\u003c\/strong\u003e The air-spaced doublet objective is fully multi-coated to maximize light transmission and contrast, critical for detecting faint stars.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Field of View:\u003c\/strong\u003e The combination of the 50mm aperture and 200mm focal length creates a generous field of view, reducing the time spent hunting for a guide star near your deep-sky target.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eRotoLock \u0026amp; Slide-Base: A 0.5 kg Zero-Flexure Guiding System\u003c\/h3\u003e\n\u003cp\u003eThis guide scope eliminates two common sources of guiding error: camera sag and differential flexure. The innovative mechanical design ensures a rock-solid connection from your guide camera straight through to your main telescope, all within a lightweight 0.5 kg package.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.25\" RotoLock Adapter:\u003c\/strong\u003e Forget flimsy thumbscrews. The RotoLock system secures your guide camera with a simple twist, creating a perfectly centered, non-marring, and rotation-free connection that prevents sag and tilt.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlide-Base Integration:\u003c\/strong\u003e Designed for modern William Optics telescopes, the integrated base slides directly into the scope's handle, eliminating the need for separate guide rings and dovetail bars. This creates a more rigid, compact, and lighter guiding setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eM48 Threading:\u003c\/strong\u003e For additional mounting flexibility, an M48 male thread is located under the RotoLock adapter, allowing for direct connection to other accessories.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I mount the William Optics UniGuide 50mm scope to my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe UniGuide 50mm features an integrated slide-base designed to fit directly into the saddle of compatible William Optics carrying handles. This provides a secure, low-profile attachment without extra hardware. For mounting on telescopes from other brands or those without this handle design, you will need a separate Vixen-style dovetail bar that can be attached to the base of the guide scope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the RotoLock adapter on the UniGuide 50mm better than standard thumbscrews?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e1.25\" RotoLock adapter\u003c\/strong\u003e provides a superior connection for your guide camera. Unlike thumbscrews, which can cause tilt and do not guarantee perfect centering, the RotoLock uses a rotating compression ring. This ensures your camera is held securely on-axis, preventing sag and flexure that can ruin long exposures. It also avoids scratching or denting your camera's nosepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the UniGuide 50mm work well for guiding my RedCat on a target like the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it's an excellent match. The UniGuide's 200mm focal length pairs very well with wide-field refractors like the RedCat series. Its wide field of view makes it easy to find a bright guide star within the large expanse of a target like the Andromeda Galaxy (M31), ensuring sharp stars across your entire image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of guide cameras are compatible with the UniGuide 50mm scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe William Optics UniGuide 50mm is compatible with any guide camera that has a standard \u003cstrong\u003e1.25\" nosepiece\u003c\/strong\u003e. This includes popular models from ZWO, QHY, Player One, and others. The RotoLock adapter provides a secure grip on any standard 1.25\" barrel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 200mm focal length of the UniGuide 50mm a good match for an 8\" f\/8 Ritchey-Chrétien?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile it can work, a 200mm focal length is on the shorter side for guiding a telescope with a focal length of 1600mm or more. For optimal guiding with a long focal length RC, astronomers often prefer a guide scope with a longer focal length or use an off-axis guider (OAG). However, for exposures under a few minutes with a good mount, the UniGuide 50mm can still provide acceptable results.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use filters with the William Optics UniGuide 50mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The UniGuide features an \u003cstrong\u003eM48 male thread\u003c\/strong\u003e concealed beneath the 1.25\" RotoLock adapter. If you unscrew the RotoLock portion, you can attach accessories with a corresponding M48 female thread, such as a filter holder or other adapters, though this is not a common application for a guide scope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Type\u003c\/td\u003e\n\u003ctd\u003eDoublet Lens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e200 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/4.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Length\u003c\/td\u003e\n\u003ctd\u003e252 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.5 kg \/ 1.1 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics Slide-Base UniGuide 50mm Scope\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Black and red","offer_id":50843684569373,"sku":"WO-M-G50PB-BR","price":275.0,"currency_code":"CAD","in_stock":true},{"title":"Red","offer_id":44967216775453,"sku":"WO-M-G50PB-WR","price":275.0,"currency_code":"CAD","in_stock":true},{"title":"Gold","offer_id":44967216709917,"sku":"WO-M-G50PB-WG","price":275.0,"currency_code":"CAD","in_stock":true},{"title":"Grey","offer_id":44967216808221,"sku":"WO-M-G50PB-TG","price":275.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/William-Optics-Uniguide-50mm.png?v=1722279198"},{"product_id":"william-optics-slide-base-uniguide-32mm-scope","title":"William Optics Slide-Base UniGuide 32mm Scope","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e32mm Doublet Objective Lens\u003c\/li\u003e\n\u003cli\u003eFast f\/3.75 Focal Ratio\u003c\/li\u003e\n\u003cli\u003e120mm Focal Length\u003c\/li\u003e\n\u003cli\u003eIntegrated Vixen\/Synta-Style Slide-Base\u003c\/li\u003e\n\u003cli\u003eUltra-Lightweight at 0.23 kg (0.51 lbs)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics Slide-Base UniGuide 32mm Scope\u003c\/h2\u003e\n\u003cp\u003eThe William Optics Slide-Base UniGuide 32mm Scope integrates a fast f\/3.75 optical system with a 120mm focal length into a rigid, featherlight 0.23 kg assembly. Its 32mm doublet objective lens provides bright, sharp guide stars, while the compact 147mm tube and integrated slide-base mount are engineered to eliminate the differential flexure that plagues traditional ring-mounted guide scopes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFast f\/3.75 Optics: A 32mm Doublet for Bright Guide Stars\u003c\/h3\u003e\n\u003cp\u003eAt the heart of the UniGuide is a 32mm air-spaced doublet lens with full multi-coatings. This design delivers high-contrast images, rendering potential guide stars as sharp, tight points. The fast f\/3.75 focal ratio works with the 120mm focal length to produce a bright image, allowing your guide camera to use shorter exposures and track stars more effectively, even in areas of the sky with fewer bright targets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eIntegrated Slide-Base Mount: A Rigid 0.23 kg Guiding Solution\u003c\/h3\u003e\n\u003cp\u003eWeighing only 0.23 kg (0.51 lbs), the UniGuide adds minimal load to your mount. Its key innovation is the integrated Vixen\/Synta-style slide-base, designed to attach directly to the handle bar or saddle of compatible William Optics telescopes. This single-piece construction creates a solid, flex-free connection between your imaging scope and guide scope, which is critical for maintaining accurate tracking over long exposures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e1.25\" and M42 Threads: Universal Guide Camera Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe UniGuide is designed for broad compatibility with the most popular guide cameras on the market. It features a standard 1.25\" eyepiece holder with a secure locking mechanism, as well as a male M42x0.75 T-thread for direct, rigid connection to cameras that support it. This dual-interface system ensures you can securely mount compact guiders like the ZWO ASI120MM Mini or Starlight Xpress Lodestar for a stable, reliable setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe 0.23 kg UniGuide vs. Rings: Eliminating Differential Flexure\u003c\/h3\u003e\n\u003cp\u003eTraditional guide scopes rely on adjustable rings, which introduce multiple points of potential sag, slippage, and flexure as the telescope tracks across the sky. The UniGuide's 0.23 kg, single-body design bypasses this entire problem. By mounting directly and rigidly to the main optical tube, it ensures both telescopes move as one, eliminating a primary source of elongated stars and improving the quality of your final images.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat guide cameras are compatible with the William Optics UniGuide 32mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe UniGuide 32mm is compatible with a wide range of guide cameras thanks to its dual connection options. You can use any camera with a \u003cstrong\u003e1.25\" nosepiece\u003c\/strong\u003e or one that can connect via a standard \u003cstrong\u003eM42 T-thread\u003c\/strong\u003e. This includes popular models like the ZWO ASI120 Mini, QHY5L-II, and Starlight Xpress Lodestar.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I mount the UniGuide 32mm Scope to my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe UniGuide features an integrated \u003cstrong\u003eVixen\/Synta-style slide-base\u003c\/strong\u003e. This allows it to mount directly onto the carrying handle or saddle of most William Optics telescopes without any additional rings or hardware, ensuring a quick, simple, and rigid connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 120mm focal length of the UniGuide 32mm suitable for guiding an 8\" SCT at f\/10?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. Modern guiding software is extremely accurate at calculating star centroids to a sub-pixel level. The 120mm focal length of the UniGuide provides a wide field of view to easily find guide stars and is more than precise enough to guide a telescope with a focal length of 2000mm or more, such as a typical 8\" SCT.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main advantage of the UniGuide's slide-base over traditional guide rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage is the elimination of \u003cstrong\u003edifferential flexure\u003c\/strong\u003e. Traditional rings can sag or allow the guide scope to shift slightly relative to the main telescope, causing guiding errors. The UniGuide's rigid, one-piece mounting system ensures both scopes move in perfect unison, leading to sharper, rounder stars in your long exposures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the UniGuide 32mm work with a non-William Optics telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, as long as your telescope has a Vixen-style saddle clamp available where you want to mount the guide scope. The UniGuide's base conforms to the standard Vixen\/Synta profile, so it can be attached to any compatible saddle, not just those on William Optics telescopes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm imaging the North American Nebula (NGC 7000) with a wide-field refractor; is the UniGuide 32mm a good match?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe UniGuide 32mm is an excellent match for wide-field refractors. Its light weight of 0.23 kg keeps the entire imaging payload balanced and manageable. The 120mm focal length provides a very wide field of view, making it extremely easy to find a suitable guide star within the expansive star fields around targets like the North American Nebula (NGC 7000).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Type\u003c\/td\u003e\n\u003ctd\u003eDoublet Lens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e32 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e120 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/3.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Length\u003c\/td\u003e\n\u003ctd\u003e147 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.23 kg \/ 0.51 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics UniGuide 32mm Scope with Integrated Slide-Base\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Red","offer_id":44967216906525,"sku":"WO-M-G32PB-RD","price":189.0,"currency_code":"CAD","in_stock":true},{"title":"Grey","offer_id":44967216873757,"sku":"WO-M-G32PB-TG","price":189.0,"currency_code":"CAD","in_stock":true},{"title":"Gold","offer_id":44967216840989,"sku":"WO-M-G32PB-GD","price":189.0,"currency_code":"CAD","in_stock":true},{"title":"Blue","offer_id":48958897848605,"sku":"WO-M-G32PB-BU","price":189.0,"currency_code":"CAD","in_stock":true},{"title":"Black","offer_id":52839936360733,"sku":"WO-M-G32PB-BR","price":189.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/William-Optics-Uniguide-32mm.png?v=1722104957"},{"product_id":"william-optics-243-308mm-bahtinov-focusing-mask","title":"William Optics 243-308mm Bahtinov Focusing Mask","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits Dew Shields with Outer Diameters from 243mm to 308mm\u003c\/li\u003e\n\u003cli\u003eGenerates a Clear Three-Spike Diffraction Pattern for Precise Focusing\u003c\/li\u003e\n\u003cli\u003eEssential Tool for Deep-Sky and Planetary Astrophotography\u003c\/li\u003e\n\u003cli\u003eAdjustable Thumbscrews for a Secure Fit\u003c\/li\u003e\n\u003cli\u003eLightweight Design Minimizes Impact on Telescope Balance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics 243-308mm Bahtinov Focusing Mask\u003c\/h2\u003e\n\u003cp\u003eThe William Optics Bahtinov Focusing Mask is the definitive tool for achieving critical focus, designed to fit telescopes with dew shield diameters from 243mm to 308mm. By generating an unmistakable diffraction pattern, this mask transforms the subjective act of focusing into a precise, repeatable, and rapid adjustment, ensuring your stellar images are perfectly sharp from the start.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe Bahtinov Pattern: Objective Focus in Seconds\u003c\/h3\u003e\n\u003cp\u003eA Bahtinov mask works by creating a set of three diffraction spikes around any bright star in your field of view. Two spikes form a fixed \"X,\" while a third central spike moves as you adjust your focuser. Perfect focus is achieved the moment this central spike is perfectly centered within the \"X\"—an unambiguous pattern that your eyes can verify instantly on a camera's live view screen.\u003c\/p\u003e\n\u003cp\u003eThis method removes all guesswork. It is faster and often more accurate than relying on visual estimation or chasing the smallest star size, giving you a physical, undeniable confirmation of critical focus every time you set up.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAdjustable Fit for 243mm to 308mm Dew Shields\u003c\/h3\u003e\n\u003cp\u003eEngineered for versatility, this mask features adjustable mounting hardware to securely grip the outer wall of your telescope's dew shield. The 243mm to 308mm range makes it compatible with a wide array of popular instruments, including many 8\" to 11\" Schmidt-Cassegrains, larger refractors, and Newtonian reflectors.\u003c\/p\u003e\n\u003cp\u003eAttaching to the dew shield is a critical design choice. It prevents the mask from scratching your optical tube assembly and ensures a secure fit on tapered or unconventional tube designs, making it a universal solution for multiple telescopes in your collection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBahtinov Mask vs. FWHM Software: A Critical Advantage in Real-World Seeing\u003c\/h3\u003e\n\u003cp\u003eWhile software metrics like Full Width at Half Maximum (FWHM) are powerful, they are highly susceptible to atmospheric seeing. A moment of poor seeing can cause FWHM values to jump, leading you to settle on a focus position that isn't truly optimal. The Bahtinov pattern, however, is largely immune to this turbulence.\u003c\/p\u003e\n\u003cp\u003eThe diffraction spikes remain coherent and readable even when the star's image is boiling. This allows you to find the true point of best focus regardless of atmospheric conditions, a crucial advantage that saves time and prevents entire subframes from being compromised by soft stars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the William Optics 243-308mm Bahtinov Mask?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSimply place the mask over the end of your telescope's dew shield and secure it with the thumbscrews. Point your telescope at a moderately bright star, and engage your camera's live view. You will see a three-spike diffraction pattern. Adjust your focuser until the central spike is perfectly centered between the other two spikes. Once centered, your focus is perfect. Remove the mask before you begin imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this William Optics mask fit my Celestron 9.25\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this mask is an excellent fit. A standard Celestron 9.25\" SCT dew shield has an outer diameter well within the 243mm to 308mm adjustment range of this mask, making it a perfect tool for achieving critical focus with that telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs a Bahtinov mask better than my camera's live view zoom for focusing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, for astrophotography, a Bahtinov mask is significantly more precise. While zooming in helps you see the star, your eye can be tricked into accepting a \"good enough\" focus. The mask creates a pattern that shows you not just when you are in focus, but the \u003cstrong\u003edirection\u003c\/strong\u003e you need to move the focuser to achieve it, removing all ambiguity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the William Optics Bahtinov Mask for visual observing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA Bahtinov mask is a tool specifically for photographic focusing. While you could technically use it to focus an eyepiece, the diffraction pattern is faint and difficult to judge by eye. It is designed to be used with the high sensitivity and magnification of a camera's live view screen.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy should I use this mask when imaging Jupiter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor planetary imaging, critical focus is essential to resolve fine details like cloud bands on Jupiter or the Cassini Division in Saturn's rings. The best practice is to focus on a nearby bright star using the William Optics Bahtinov Mask, lock your focuser, and then slew back to the planet to begin your high-frame-rate capture. This ensures your focus is set with objective precision before you start recording.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the William Optics Bahtinov Mask work with color cameras?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The mask works perfectly with both monochrome and one-shot color cameras. The diffraction pattern is created by the physics of light and is independent of the type of sensor you are using. Some advanced users even use the slight color separation (chromatic aberration) at the tips of the spikes to fine-tune focus for different color channels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eWilliam Optics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eBahtinov Focusing Mask\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eWO-BM-DS-GR150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eMounts on Telescope Dew Shield\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Dew Shield Diameter\u003c\/td\u003e\n\u003ctd\u003e243mm - 308mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics 243-308mm Bahtinov Focusing Mask\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967217004829,"sku":"WO-BM-DS-GR150","price":149.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-243-308mm-Bahtinov-Focusing-Mask-BM-DS-GR150-1__38162.1596133226.1280.1280.jpg?v=1684339072"},{"product_id":"william-optics-75mm-110mm-bahtinov-focusing-mask","title":"William Optics 75mm -110mm Bahtinov Focusing Mask","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits Telescope Dew Shields from 75mm to 110mm\u003c\/li\u003e\n\u003cli\u003eCreates Sharp Diffraction Spikes for Precise Focusing\u003c\/li\u003e\n\u003cli\u003eIdeal for Small Apochromatic Refractors and Astrographs\u003c\/li\u003e\n\u003cli\u003eEliminates Subjective Focusing Errors\u003c\/li\u003e\n\u003cli\u003eA Critical Tool for Astrophotography\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\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\u003eWilliam Optics 75mm -110mm Bahtinov Focusing Mask\u003c\/h2\u003e\n\u003cp\u003eThe William Optics Bahtinov Focusing Mask provides a simple, data-driven method for achieving perfect focus on any telescope with a dew shield outer diameter between 75mm and 110mm. This essential tool removes the guesswork from focusing, allowing you to achieve critically sharp stars for every astrophoto.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePrecision Focusing for Telescopes from 75mm to 110mm\u003c\/h3\u003e\n\u003cp\u003eThis mask operates on the principle of diffraction, splitting the light from a bright star into a distinct, symmetrical spike pattern. As you adjust your focuser, the central spike moves in or out; perfect focus is achieved the moment this spike is precisely centered between the outer two. The result is an unambiguous, repeatable focus point that is far more accurate than the human eye alone.\u003c\/p\u003e\n\u003cp\u003eDesigned for versatility, the mask is built to fit any telescope tube or dew shield with an outer diameter ranging from 75mm to 110mm. This makes it a perfect match for many popular wide-field refractors and other portable imaging instruments, ensuring your small-aperture setup can produce the sharpest possible images.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the William Optics 75-110mm Bahtinov Mask?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003ePlace the mask over the front of your telescope's dew shield or objective. Point to a moderately bright star, bring it into a rough focus, and view it on your camera's live-view screen. You will see a diffraction pattern of three spikes. Adjust the focuser until the central spike is perfectly centered between the other two, then lock your focuser and remove the mask.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this William Optics mask fit my 80mm refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, most likely. This mask is designed for any telescope with an outer dew shield diameter between \u003cstrong\u003e75mm and 110mm\u003c\/strong\u003e. An 80mm refractor typically has a dew shield that falls comfortably within this range, making this mask an ideal fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the 75-110mm Bahtinov mask for imaging Jupiter or the Moon?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, a Bahtinov mask requires a point-like light source, such as a star, to generate its distinctive diffraction pattern. Planets like Jupiter or extended objects like the Moon do not produce the necessary pattern for the mask to work. For planets, it's best to focus on one of its moons first before turning to the planet itself.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes a Bahtinov mask more accurate than focusing by eye?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFocusing by eye is subjective and can be affected by atmospheric seeing, eye fatigue, and small judgment errors. A Bahtinov mask converts the abstract concept of \"sharpness\" into a simple, symmetrical geometric pattern. Aligning the central spike is a precise, objective task that yields repeatable, perfect focus every time, independent of the observer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the William Optics Bahtinov mask useful for visual observing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile primarily designed for the critical demands of astrophotography, a Bahtinov mask can also be used for visual observing to ensure your telescope is perfectly focused. However, its main benefit is for imaging, where even a tiny focusing error can ruin a long exposure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy does the diffraction pattern change as I focus?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe pattern is a direct visualization of the light cone from the star. When you are inside or outside of focus, the light cone is wider, causing the central diffraction spike to shift to one side. At the exact point of focus, the light cone is at its narrowest point, and the diffraction pattern becomes perfectly symmetrical.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eBahtinov Focusing Mask\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Dew Shield Diameter\u003c\/td\u003e\n\u003ctd\u003e75mm - 110mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\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\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967217037597,"sku":"WO-BM-DS-GR45","price":81.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-75mm-110mm-Bahtinov-Focusing-Mask-BM-DS-GR45-1__16153.1596133226.1280.1280.jpg?v=1684339076"},{"product_id":"william-optics-105-148mm-bahtinov-focusing-mask","title":"William Optics 105 -148mm Bahtinov Focusing Mask","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits Telescope Dew Shields from 105mm to 148mm\u003c\/li\u003e\n\u003cli\u003eGenerates Clear Diffraction Spikes for Focusing\u003c\/li\u003e\n\u003cli\u003eRemoves Subjectivity from Manual Focusing\u003c\/li\u003e\n\u003cli\u003eLightweight and Durable Construction\u003c\/li\u003e\n\u003cli\u003eIdeal for Astrophotography\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics 105-148mm Bahtinov Focusing Mask\u003c\/h2\u003e\n\u003cp\u003eThe William Optics Bahtinov Focusing Mask provides a fast, repeatable method for achieving critical focus for astrophotography. It is designed to fit any telescope with an outer dew shield diameter between 105mm and 148mm, making it a versatile tool for a wide range of optical tubes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUniversal Fit for Dew Shields from 105mm to 148mm\u003c\/h3\u003e\n\u003cp\u003eThis mask features adjustable mounting posts to securely grip the outer edge of your telescope's dew shield. This simple yet effective design allows it to fit a wide variety of instruments, from small refractors to mid-sized reflectors, as long as the dew shield diameter falls within the 105mm to 148mm range.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Fit:\u003c\/strong\u003e Securely mounts on any dew shield from 105mm to 148mm in diameter, ensuring broad compatibility.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight Construction:\u003c\/strong\u003e Adds minimal weight to the front of your telescope, preventing balance issues when imaging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple Installation:\u003c\/strong\u003e Attaches and removes in seconds without any tools, letting you get to focusing quickly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe Bahtinov Diffraction Pattern: Visualizing Perfect Focus\u003c\/h3\u003e\n\u003cp\u003eInstead of guessing when a star is at its smallest point, the Bahtinov mask creates a bright, easy-to-see diffraction pattern around it. As you adjust your focuser, you'll see a central diffraction spike move between two outer spikes. Perfect focus is achieved only when the central spike is perfectly centered and symmetrical.\u003c\/p\u003e\n\u003cp\u003eThis visual confirmation is immediate and unambiguous, even on a small camera screen. It works on any bright star and is significantly more accurate than relying on visual estimation, which can be affected by eye fatigue and atmospheric conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBahtinov Mask vs. FWHM: Why Visual Confirmation Matters\u003c\/h3\u003e\n\u003cp\u003eWhile autofocus routines using Full Width at Half Maximum (FWHM) are powerful, they can be misled by atmospheric turbulence (\"seeing\"), which causes star sizes to fluctuate moment by moment. A Bahtinov mask is largely immune to seeing; the diffraction pattern remains stable and readable even when the air is unsteady.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeeing Immunity:\u003c\/strong\u003e Provides a clear result even in turbulent atmospheric conditions that can fool software metrics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo Software Required:\u003c\/strong\u003e An essential analog tool that works directly at the eyepiece or on any live-view camera feed without needing a computer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFaster Than Software:\u003c\/strong\u003e For manual focusing, finding the symmetrical spike pattern is often faster than waiting for software to analyze multiple exposures and calculate FWHM values.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the William Optics 105-148mm Bahtinov Mask?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSimply place the mask over the front of your telescope's dew shield and point at a moderately bright star. Use your camera's live view, zoomed in on the star, to see the diffraction pattern. Adjust your focuser until the central spike is perfectly centered between the two outer spikes. Once centered, your focus is perfect, and you can remove the mask to begin imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this William Optics Bahtinov mask fit my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis mask is designed to fit any telescope with an outer dew shield diameter that measures between \u003cstrong\u003e105mm and 148mm\u003c\/strong\u003e. Measure the outside diameter of your dew shield to confirm compatibility. The adjustable posts will securely hold it in place within this range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of star should I use to focus the William Optics Bahtinov Mask?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eChoose a bright star that is not overly brilliant, like Vega or Arcturus. An ideal star is bright enough to produce a clear diffraction pattern on your camera's live view but not so bright that it completely saturates the sensor, which can make the spikes difficult to judge. It's often best to choose a star near your imaging target to minimize focus shift from mirror flop or temperature changes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the William Optics 105-148mm Bahtinov Mask for visual observing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile designed for astrophotography, a Bahtinov mask can be used for visual focusing. However, the diffraction pattern is much easier to see and evaluate on a camera screen than through an eyepiece. For imaging, it is an essential tool; for visual, it can be helpful but is generally less necessary.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a William Optics ZenithStar 81; will this 105-148mm mask fit?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this mask is a good fit for many popular refractors. To be certain, you should measure the outer diameter of your ZenithStar 81's dew shield. If it falls within the \u003cstrong\u003e105mm to 148mm\u003c\/strong\u003e range, the mask will fit perfectly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the William Optics Bahtinov Mask help when imaging a target like the Orion Nebula (M42) with a DSLR?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen imaging a faint object like the Orion Nebula (M42), achieving perfect focus is critical to capturing fine detail. Before you slew to the nebula, point your DSLR and telescope to a nearby bright star like Rigel. Use the Bahtinov mask with your camera's live view to set focus precisely. Then, remove the mask and move to M42, confident that your stars will be as sharp as possible in your final stacked image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMask Type\u003c\/td\u003e\n\u003ctd\u003eBahtinov\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment Method\u003c\/td\u003e\n\u003ctd\u003eMounts on Telescope Dew Shield\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment Diameter Range\u003c\/td\u003e\n\u003ctd\u003e105mm - 148mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics 105-148mm Bahtinov Focusing Mask\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967217103133,"sku":"WO-BM-DS-GR55","price":94.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-105-148mm-Bahtinov-Focusing-Mask-BM-DS-GR55-1__76274.1596133226.1280.1280.jpg?v=1684339080"},{"product_id":"william-optics-172mm-235mm-bahtinov-focusing-mask","title":"William Optics 172mm -235mm Bahtinov Focusing Mask","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFits Dew Shield Diameters from 172mm to 235mm\u003c\/li\u003e\n\u003cli\u003eGenerates Clear Diffraction Spikes for Precise Focusing\u003c\/li\u003e\n\u003cli\u003eIdeal for Astrophotography of Planets and Deep-Sky Objects\u003c\/li\u003e\n\u003cli\u003eAdjustable Mount for a Secure Fit on Multiple Telescopes\u003c\/li\u003e\n\u003cli\u003eLightweight and Durable Construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\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\u003eWilliam Optics 172mm - 235mm Bahtinov Focusing Mask\u003c\/h2\u003e\n\u003cp\u003eThe William Optics Bahtinov Focusing Mask eliminates the guesswork of achieving critical focus by providing a simple, repeatable method for any telescope with a dew shield diameter from 172mm to 235mm. This essential tool is engineered for the astrophotographer who requires objective, perfect focus for every imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eOne Mask for Multiple Telescopes: 172mm to 235mm Fit\u003c\/h3\u003e\n\u003cp\u003eThis mask's key feature is its adjustable mounting system, designed to fit a wide range of instruments. The versatile 172mm to 235mm diameter range means a single mask can serve your entire collection of mid-sized telescopes, from 6-inch refractors to 8-inch SCTs, without needing to buy a custom-fit mask for each one. The secure mounting ensures it stays perfectly centered on your optical axis without slipping.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFrom Guesswork to Certainty: Diffraction-Based Focusing\u003c\/h3\u003e\n\u003cp\u003eA Bahtinov mask creates a distinctive diffraction pattern of spikes around any bright star. As you adjust your focuser, a central spike moves in relation to two outer spikes. Perfect, critical focus is achieved only when the central spike is positioned exactly in the middle, creating a perfectly symmetrical pattern. This method is far more precise than relying on visual estimation or FWHM measurements, which can be easily skewed by atmospheric seeing conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the William Optics 172-235mm Bahtinov Mask?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eUsing the \u003cstrong\u003eWilliam Optics Bahtinov Mask\u003c\/strong\u003e is straightforward. First, place the mask over the front of your telescope's dew shield and secure it. Point your telescope at a bright star, and bring it into rough focus. When you view the star through your camera's live view, you will see the diffraction spike pattern. Adjust your focuser until the central spike is perfectly centered between the two outer spikes. Once symmetrical, your focus is perfect, and you can remove the mask.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the William Optics 172-235mm Bahtinov Mask fit my 8-inch SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. An 8-inch (203mm) Schmidt-Cassegrain Telescope typically has a dew shield outer diameter that falls comfortably within the \u003cstrong\u003e172mm to 235mm\u003c\/strong\u003e range of this mask. This makes it an ideal focusing tool for popular 8\" SCT and EdgeHD models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes this William Optics Bahtinov Mask better than just focusing by eye?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFocusing by eye is subjective and can be affected by seeing conditions, eye fatigue, and the observer's visual acuity. The \u003cstrong\u003eWilliam Optics Bahtinov Mask\u003c\/strong\u003e removes this subjectivity by creating a clear, unmistakable pattern. Achieving a symmetrical diffraction pattern is an objective, repeatable indicator of perfect focus that does not depend on the observer's judgment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the William Optics Bahtinov Mask for planetary imaging of Jupiter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile you cannot focus on the planet itself, you can use the \u003cstrong\u003eWilliam Optics Bahtinov Mask\u003c\/strong\u003e on a nearby bright star to achieve perfect focus before slewing back to Jupiter. This ensures your telescope is critically focused for capturing fine details in Jupiter's cloud bands and the Great Red Spot. Once focused on the star, lock your focuser and remove the mask before beginning your planetary capture.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich star is best for focusing with the William Optics Bahtinov Mask?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe ideal target is a moderately bright, isolated star. Stars like Vega, Arcturus, or Capella are excellent choices. Avoid using very dim stars, as the diffraction pattern will be faint, or extremely bright stars that might saturate your camera sensor, making the spikes difficult to judge accurately. Also, choose a star that is near the celestial object you plan to image to minimize focus shift from mirror flop or temperature changes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the William Optics 172-235mm Bahtinov Mask work with autofocusers?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Many automated focusing routines, such as those in N.I.N.A. or Sequence Generator Pro, can use a Bahtinov mask to assist in their focusing process. The software analyzes the diffraction pattern to determine the point of critical focus. The \u003cstrong\u003eWilliam Optics Bahtinov Mask\u003c\/strong\u003e provides a clear pattern that these programs can interpret effectively.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eWO-BM-DS-GR90\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Dew Shield Diameter\u003c\/td\u003e\n\u003ctd\u003e172mm - 235mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics 172mm - 235mm Bahtinov Focusing Mask\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967217201437,"sku":"WO-BM-DS-GR90","price":121.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-172mm-235mm-Bahtinov-Focusing-Mask-BM-DS-GR90-1__73641.1596133227.1280.1280.jpg?v=1684339086"},{"product_id":"william-optics-bahtinov-mask-cover-for-gt71-z73-star71ii","title":"William Optics Bahtinov Mask Cover for GT71 \/ Z73 \/ Star71II","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003ePatented Bahtinov mask integrated into a dust cover\u003c\/li\u003e\n\u003cli\u003ePrecision-cut pattern for accurate focusing\u003c\/li\u003e\n\u003cli\u003eDesigned for William Optics GT71, Z73, and Star71II refractors\u003c\/li\u003e\n\u003cli\u003eDurable anodized aluminum construction\u003c\/li\u003e\n\u003cli\u003eAvailable in Gold, Red, and Blue finishes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eWilliam Optics Bahtinov Mask Cover for GT71 \/ Z73 \/ Star71II\u003c\/h2\u003e\n      \u003cp\u003eEnsure every astrophoto taken with your William Optics GT71, Z73, or Star71II refractor starts with perfect focus. This patented Bahtinov Mask Cover replaces your standard dust cap, integrating a precision focusing tool directly into your telescope's protective cover. It’s the simplest, most effective way to achieve critical focus, ensuring you never waste valuable imaging time on soft stars again.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003ePatented Dual-Function Design for GT71, Z73 \u0026amp; Star71II\u003c\/h3\u003e\n      \u003cp\u003eA Bahtinov mask is the most precise tool for achieving sharp focus for astrophotography. By placing this mask over your objective, a bright star displays a distinct three-spike diffraction pattern. Adjusting your focuser until the central spike is perfectly centered between the other two guarantees you’ve nailed critical focus, eliminating guesswork.\u003c\/p\u003e\n      \u003cp\u003eWilliam Optics' innovative design integrates this essential tool into the telescope's primary dust cap. This patented solution means your focusing mask is always with your telescope, preventing it from being forgotten or lost. Simply leave it on for protection, and you're ready to achieve perfect focus the moment you set up.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePerfect Compatibility:\u003c\/strong\u003e Designed to fit the dew shields of the William Optics Gran Turismo 71, Zenithstar 73, and RedCat 71 (Star71II) refractors.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eAnodized Aluminum Construction:\u003c\/strong\u003e Machined from high-quality aluminum and anodized in your choice of Gold, Red, or Blue to match your William Optics hardware.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eInstant Focus Confirmation:\u003c\/strong\u003e Provides clear, unambiguous visual feedback for achieving perfect focus through your camera's live view screen.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the William Optics Bahtinov Mask Cover to focus my GT71 on a star like Vega?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eSimply place the Bahtinov Mask Cover over the end of your GT71's dew shield, point the telescope at a bright star like Vega (Alpha Lyrae), and view the star on your camera's live view screen. You will see a pattern of three diffraction spikes. Adjust your focuser until the central spike is perfectly symmetrical and centered between the two outer spikes. Once centered, your focus is perfect.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this mask help me achieve sharp focus for nebula imaging with my Z73 refractor?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAbsolutely. For nebula imaging, achieving critical focus on the surrounding stars is essential. Before you slew to your target nebula, use the William Optics Bahtinov Mask Cover on a nearby bright star to set your focus. This ensures your stars are as tight as possible, resulting in a much sharper final image of the nebula.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main advantage of having the Bahtinov mask built into the lens cover?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe primary advantage is convenience and availability. A separate Bahtinov mask can be easily forgotten, misplaced, or damaged. By integrating it into the dust cover, William Optics ensures this critical focusing tool is always with your telescope, protected and ready for use whenever you are.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the William Optics Bahtinov Mask Cover compatible with any other telescopes?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, this model is specifically designed for the dew shield diameters of the \u003cstrong\u003eWilliam Optics GT71\u003c\/strong\u003e, \u003cstrong\u003eZ73\u003c\/strong\u003e, and \u003cstrong\u003eStar71II\u003c\/strong\u003e refractors. It will not provide a secure fit or proper function on other telescopes.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat am I looking for in the diffraction pattern when using this Bahtinov mask?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYou are looking for perfect symmetry. When out of focus, the central diffraction spike will be shifted to one side of the \"X\" pattern. As you adjust the focuser, this central spike moves. Perfect focus is achieved at the exact point where the central spike is positioned perfectly in the middle of the \"X,\" creating a star-like, six-pointed pattern.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the color of the William Optics Bahtinov Mask Cover affect its performance?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, the color (Gold, Red, or Blue) is purely cosmetic. The anodized finish is designed to match the aesthetic of William Optics telescopes and accessories. The performance of the Bahtinov mask pattern is identical across all color options.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eWilliam Optics GT71, Z73, Star71II\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eFocusing Mask and Dust Cover\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAnodized Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eAvailable Options\u003c\/td\u003e\n\u003ctd\u003eGold, Blue, Red\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003eWilliam Optics Bahtinov Mask Cover\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Gold","offer_id":44967218315549,"sku":"WO-CPBM-71GD","price":163.0,"currency_code":"CAD","in_stock":true},{"title":"Blue","offer_id":44967218348317,"sku":"WO-CPBM-71BU","price":147.0,"currency_code":"CAD","in_stock":true},{"title":"Red","offer_id":44967218381085,"sku":"WO-CPBM-71RD","price":163.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-Bahtinov-Mask-Cover-for-WO-70-Series-Telescopes-CPBM-71-1__68564.1596133230.1280.1280.jpg?v=1684339261"},{"product_id":"william-optics-bahtinov-mask-cover-for-gt81-z81","title":"William Optics Bahtinov Mask Cover for GT81 \/ Z81","description":"\u003cul\u003e\n\t\u003cli\u003eBahtinov mask cover for William Optics GT81 and Z81 telescopes\u003c\/li\u003e\n\t\u003cli\u003eEnhances focusing accuracy for astrophotography\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\t\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\t\u003cli class=\"active\"\u003e\n\t\t\u003cp\u003e\nThe William Optics Bahtinov Mask Cover is an essential accessory for precise focusing in astrophotography. Designed to fit the William Optics GT81 and Z81 telescopes, this Bahtinov mask cover ensures accurate focus for your celestial observations and imaging.\n\t\t\u003c\/p\u003e\n\t\t\u003cdiv class=\"warning\"\u003e\n\t\t\t\u003cimg alt=\"Disclaimer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/warning-logo.svg?v=1714663206\" width=\"25px\"\u003e\n\t\t\t\u003cp\u003e\nSpecifically designed for the William Optics GT81 and Z81 telescopes.\n\t\t\t\u003c\/p\u003e\n\t\t\u003c\/div\u003e\n\t\t\n\t\t\u003cdiv\u003e\n\t\t\t\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\t\t\t\u003chr\u003e\n\t\t\t\u003cdiv class=\"two-columns-section\"\u003e\n\t\t\t\t\u003cdiv class=\"text-side-2\"\u003e\n\t\t\t\t\t\u003cp\u003e\nThe Bahtinov mask cover is custom-made to fit William Optics GT81 and Z81 telescopes, ensuring a secure fit and optimal performance.\n\t\t\t\t\t\u003c\/p\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\u003cdiv class=\"image-side-2\" data-mce-style=\"text-align: start;\" style=\"text-align: start;\"\u003e\n\t\t\t\t\t\u003cimg alt=\"William Optics Bahtinov Mask Cover for GT81 \/ Z81\" src=\"https:\/\/davidastro.com\/cdn\/shop\/products\/William-Optics-Bahtinov-Mask-Cover-for-WO-81-Series-Telescopes-CPBM-81-1__39346.1596133231.1280.1280_832x832.jpg?v=1684339269\" style=\"margin-bottom: 16px; float: none;\"\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\u003c\/div\u003e\n\n\t\t\t\u003cdiv data-mce-style=\"backgroundcolor: #0a0001; border-radius: 5px;\" style=\"background-color: #0a0001; border-radius: 5px;\"\u003e\n\t\t\t\t\u003ch3 style=\"color: white!important;\"\u003eEnhanced Focusing Accuracy\u003c\/h3\u003e\n\t\t\t\t\u003chr\u003e\n\t\t\t\t\u003cdiv class=\"two-columns-section\"\u003e\n\t\t\t\t\t\u003cdiv class=\"image-side-2\" data-mce-style=\"text-align: start;\" style=\"text-align: start;\"\u003e\n\t\t\t\t\t\t\u003cimg alt=\"William Optics Bahtinov Mask Cover for GT81 \/ Z81\" src=\"https:\/\/davidastro.com\/cdn\/shop\/products\/William-Optics-Bahtinov-Mask-Cover-for-WO-81-Series-Telescopes-CPBM-81-2__20318.1596133231.1280.1280_832x832.jpg?v=1684339269\" style=\"margin-bottom: 16px; float: none;\"\u003e\n\t\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\t\u003cdiv class=\"text-side-2\"\u003e\n\t\t\t\t\t\t\u003cp style=\"color: white!important;\"\u003e\nThe Bahtinov mask pattern allows for precise focusing by creating diffraction spikes when viewing a bright star, making it easy to achieve perfect focus for astrophotography.\n\t\t\t\t\t\t\u003c\/p\u003e\n\t\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\u003c\/div\u003e\n\t\t\u003c\/div\u003e\n\n\t\t\u003ch3\u003eDurable Construction\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nMade from high-quality materials, the Bahtinov mask cover is built to withstand regular use and provides long-lasting durability.\n\t\t\u003c\/p\u003e\n\t\t\n\t\t\u003ch3\u003ePrecision Engineering\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nEngineered for a perfect fit on the GT81 and Z81 telescopes, the Bahtinov mask cover ensures stability and accuracy during focusing.\n\t\t\u003c\/p\u003e\n\n\t\t\u003ch3\u003eEase of Use\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nThe Bahtinov mask cover is easy to attach and remove, making it convenient for quick adjustments in the field.\n\t\t\u003c\/p\u003e\n\n\t\t\u003ch3\u003eVersatility\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nIdeal for both beginner and experienced astrophotographers, the Bahtinov mask cover is an essential tool for achieving sharp, detailed images of celestial objects.\n\t\t\u003c\/p\u003e\n\t\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Gold","offer_id":44967218446621,"sku":"WO-CPBM-81GD","price":163.0,"currency_code":"CAD","in_stock":true},{"title":"Blue","offer_id":44967218479389,"sku":"WO-CPBM-81BU","price":163.0,"currency_code":"CAD","in_stock":true},{"title":"Red","offer_id":44967218512157,"sku":"WO-CPBM-81RD","price":163.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-Bahtinov-Mask-Cover-for-WO-81-Series-Telescopes-CPBM-81-1__39346.1596133231.1280.1280.jpg?v=1684339269"},{"product_id":"william-optics-bahtinov-mask-cover-for-takahashi-fsq106","title":"William Optics Bahtinov Mask Cover for Takahashi FSQ106","description":"\u003cul\u003e\n\t\u003cli\u003eBahtinov mask cover for Takahashi FSQ106 telescope\u003c\/li\u003e\n\t\u003cli\u003eEnhances focusing accuracy for astrophotography\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\t\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\t\u003cli class=\"active\"\u003e\n\t\t\u003cp\u003e\nThe William Optics Bahtinov Mask Cover is an essential accessory for precise focusing in astrophotography. Designed to fit the Takahashi FSQ106 telescope, this Bahtinov mask cover ensures accurate focus for your celestial observations and imaging.\n\t\t\u003c\/p\u003e\n\t\t\u003cdiv class=\"warning\"\u003e\n\t\t\t\u003cimg alt=\"Disclaimer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/warning-logo.svg?v=1714663206\" width=\"25px\"\u003e\n\t\t\t\u003cp\u003e\nSpecifically designed for the Takahashi FSQ106 telescope.\n\t\t\t\u003c\/p\u003e\n\t\t\u003c\/div\u003e\n\t\t\n\t\t\u003cdiv\u003e\n\t\t\t\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\t\t\t\u003chr\u003e\n\t\t\t\u003cdiv class=\"two-columns-section\"\u003e\n\t\t\t\t\u003cdiv class=\"text-side-2\"\u003e\n\t\t\t\t\t\u003cp\u003e\nThe Bahtinov mask cover is custom-made to fit the Takahashi FSQ106 telescope, ensuring a secure fit and optimal performance.\n\t\t\t\t\t\u003c\/p\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\u003cdiv class=\"image-side-2\" data-mce-style=\"text-align: start;\" style=\"text-align: start;\"\u003e\n\t\t\t\t\t\u003cimg alt=\"William Optics Bahtinov Mask Cover for Takahashi FSQ106\" src=\"https:\/\/davidastro.com\/cdn\/shop\/products\/William-Optics-Bahtinov-Mask-Cover-for-Takahashi-FSQ106-CPBM-TH106-1__35534.1596133232.1280.1280_832x832.jpg?v=1684339107\" style=\"margin-bottom: 16px; float: none;\"\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\u003c\/div\u003e\n\n\t\t\t\u003cdiv data-mce-style=\"backgroundcolor: #0a0001; border-radius: 5px;\" style=\"background-color: #0a0001; border-radius: 5px;\"\u003e\n\t\t\t\t\u003ch3 style=\"color: white!important;\"\u003eEnhanced Focusing Accuracy\u003c\/h3\u003e\n\t\t\t\t\u003chr\u003e\n\t\t\t\t\u003cdiv class=\"two-columns-section\"\u003e\n\t\t\t\t\t\u003cdiv class=\"image-side-2\" data-mce-style=\"text-align: start;\" style=\"text-align: start;\"\u003e\n\t\t\t\t\t\t\u003cimg alt=\"William Optics Bahtinov Mask Cover for Takahashi FSQ106\" src=\"https:\/\/davidastro.com\/cdn\/shop\/products\/William-Optics-Bahtinov-Mask-Cover-for-Takahashi-FSQ106-CPBM-TH106-2__47935.1596133232.1280.1280_832x832.jpg?v=1684339107\" style=\"margin-bottom: 16px; float: none;\"\u003e\n\t\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\t\u003cdiv class=\"text-side-2\"\u003e\n\t\t\t\t\t\t\u003cp style=\"color: white!important;\"\u003e\nThe Bahtinov mask pattern allows for precise focusing by creating diffraction spikes when viewing a bright star, making it easy to achieve perfect focus for astrophotography.\n\t\t\t\t\t\t\u003c\/p\u003e\n\t\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\u003c\/div\u003e\n\t\t\u003c\/div\u003e\n\n\t\t\u003ch3\u003eDurable Construction\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nMade from high-quality materials, the Bahtinov mask cover is built to withstand regular use and provides long-lasting durability.\n\t\t\u003c\/p\u003e\n\t\t\n\t\t\u003ch3\u003ePrecision Engineering\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nEngineered for a perfect fit on the Takahashi FSQ106 telescope, the Bahtinov mask cover ensures stability and accuracy during focusing.\n\t\t\u003c\/p\u003e\n\n\t\t\u003ch3\u003eEase of Use\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nThe Bahtinov mask cover is easy to attach and remove, making it convenient for quick adjustments in the field.\n\t\t\u003c\/p\u003e\n\n\t\t\u003ch3\u003eVersatility\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nIdeal for both beginner and experienced astrophotographers, the Bahtinov mask cover is an essential tool for achieving sharp, detailed images of celestial objects.\n\t\t\u003c\/p\u003e\n\t\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Blue","offer_id":44967218708765,"sku":"WO-CPBM-TH106BS","price":266.0,"currency_code":"CAD","in_stock":true},{"title":"Red","offer_id":44967218741533,"sku":"WO-CPBM-TH106RS","price":266.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-Bahtinov-Mask-Cover-for-Takahashi-FSQ106-CPBM-TH106-1__35534.1596133232.1280.1280.jpg?v=1684339107"},{"product_id":"william-optics-stc-astro-duo-narrowband-filter","title":"William Optics STC Astro Duo-Narrowband Filter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDual-Bandpass for H-Alpha and Oxygen-III\u003c\/li\u003e\n\u003cli\u003eSuppresses Urban Light Pollution\u003c\/li\u003e\n\u003cli\u003eIon Beam-Assisted Deposition (IBAD) Coatings\u003c\/li\u003e\n\u003cli\u003eHigh Durability and Easy-to-Clean Optical Surfaces\u003c\/li\u003e\n\u003cli\u003eMatte Black Anodized, Teflon-Coated Anti-Flare Frame\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\u003eWilliam Optics STC Astro Duo-Narrowband Filter\u003c\/h2\u003e\n\u003cp\u003eThe William Optics STC Astro Duo-Narrowband Filter is engineered to isolate the two most important emission lines for nebula photography, Hydrogen-alpha (Hα) and Oxygen-III (OIII), while aggressively blocking light pollution. By utilizing advanced Ion Beam-Assisted Deposition (IBAD) coatings, this filter delivers exceptional signal-to-noise ratio and maintains spectral stability through changing temperatures, ensuring consistent results from your light-polluted backyard.\u003c\/p\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 Duo-Narrowband Advantage: Isolating Hα and OIII Emission Lines\u003c\/h3\u003e\n\u003cp\u003eUnlike broadband filters that pass a wide swath of the spectrum, the STC Astro Duo-Narrowband Filter targets the specific wavelengths emitted by planetary and emission nebulae. This selective transmission dramatically increases contrast by rejecting sodium and mercury vapor light from city streetlights, as well as natural skyglow, darkening the background and making faint nebulosity stand 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\u003eIBAD Coatings: Durability and Spectral Stability\u003c\/h3\u003e\n\u003cp\u003eThe filter employs Ion Beam-Assisted Deposition (IBAD) coating technology, which creates an extremely dense, hard, and moisture-resistant optical surface. This process ensures the filter's bandpass characteristics will not shift due to changes in temperature or humidity during an imaging session—a critical factor for maintaining consistent color balance and data quality. The robust coatings also make the filter surface easier to clean without risk of 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\u003eEngineered Frame: Anti-Reflection and Easy Handling\u003c\/h3\u003e\n\u003cp\u003eEvery component is designed to minimize artifacts. The filter's frame is constructed from matte black anodized aluminum to absorb stray light and prevent internal reflections that can cause halos around bright stars. A Teflon coating on the frame's edge ensures smooth installation and removal from a filter wheel or camera nosepiece, reducing the risk of binding or cross-threading.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDuo-Narrowband vs. Broadband LPR Filters: A Sharper Cut\u003c\/h3\u003e\n\u003cp\u003eWhile a standard Light Pollution Reduction (LPR) filter offers a modest improvement from the city, a duo-narrowband design like the STC represents a significant step up for imaging emission nebulae. Where a broadband LPR filter might pass a wide range of blue and red light, the STC filter's tight focus on just the Hα and OIII lines provides a much darker sky background. This makes it the superior choice for objects like the Orion Nebula (M42) or the Lagoon Nebula (M8), though less ideal for broadband targets like galaxies and reflection nebulae which emit light across the entire spectrum.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main advantage of the William Optics STC Astro Duo-Narrowband Filter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary advantage is isolating the key \u003cstrong\u003eH-alpha\u003c\/strong\u003e and \u003cstrong\u003eOIII\u003c\/strong\u003e wavelengths emitted by most nebulae. This allows you to capture high-contrast images from light-polluted urban and suburban locations by rejecting the specific wavelengths associated with artificial lighting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will the STC Duo-Narrowband Filter perform on the Orion Nebula (M42) from a city?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt will perform exceptionally well. The Orion Nebula (M42) is rich in both Hydrogen-alpha and Oxygen-III emissions. The William Optics STC Astro Duo-Narrowband Filter will darken the light-polluted sky background, dramatically increasing the contrast and revealing faint, extended structures in the nebula that would otherwise be invisible from a city.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the STC Duo-Narrowband Filter suitable for imaging galaxies like Andromeda (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this is not the ideal filter for broadband targets like galaxies. Galaxies and reflection nebulae shine by reflecting starlight across the entire visible spectrum. Because the \u003cstrong\u003eWilliam Optics STC Astro Duo-Narrowband Filter\u003c\/strong\u003e blocks most of that spectrum, it will significantly dim the galaxy and produce poor results. A broadband LPR filter or unfiltered imaging from a dark site is better for galaxies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the IBAD coating on the STC Duo-Narrowband Filter improve my images?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eIon Beam-Assisted Deposition (IBAD)\u003c\/strong\u003e process creates a very stable coating. This prevents the filter's transmission bands from shifting with temperature or humidity changes throughout the night. This stability ensures you get consistent color data and performance from dusk till dawn, a crucial factor for long-exposure astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the frame of the STC Duo-Narrowband Filter special?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe frame is designed to enhance image quality and usability. It features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatte Black Anodizing:\u003c\/strong\u003e Absorbs stray light to prevent internal reflections and halos.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTeflon Coating:\u003c\/strong\u003e Allows for smooth, easy installation and removal from your imaging train without jamming.\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 William Optics STC Duo-Narrowband Filter for visual observing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile technically possible, it is not recommended. Narrowband filters like this one block a tremendous amount of light, and the resulting image through an eyepiece would be extremely dim. These filters are designed specifically for the long exposures used in astrophotography with one-shot-color or monochrome cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\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\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967225590045,"sku":"WO-YF-STC-ADN","price":660.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-STC-Astro-Duo-Narrowband-Filter-YF-STC-ADN-1__15183.1596133266.1280.1280.jpg?v=1684339179"},{"product_id":"william-optics-stc-ultra-layer-astro-multispectra-filter-48mm","title":"William Optics STC Ultra Layer Astro Multispectra Filter - 48mm","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e48mm (M48) Filter Size\u003c\/li\u003e\n\u003cli\u003eMulti-Bandpass Light Pollution Suppression\u003c\/li\u003e\n\u003cli\u003ePasses H-α, H-β, and OIII Emission Lines\u003c\/li\u003e\n\u003cli\u003eSchott B270 Optical Glass Substrate\u003c\/li\u003e\n\u003cli\u003eSTC Ultra-Layer IBAD Anti-Reflection Coatings\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 STC Ultra Layer Astro Multispectra Filter - 48mm\u003c\/h2\u003e\n\u003cp\u003eThe 48mm William Optics STC Ultra Layer Astro Multispectra Filter is engineered to restore natural color and contrast to astrophotography by suppressing common mercury, sodium, and LED light pollution while transmitting crucial H-alpha, H-beta, and OIII nebula lines through its coated Schott B270 optical glass.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eRestoring Natural Color from Light-Polluted Skies\u003c\/h3\u003e\n\u003cp\u003eThis filter is designed as a direct response to the challenge of urban and suburban imaging. It isolates and blocks the most common sources of artificial skyglow—specifically mercury vapor, high-pressure sodium, and certain disruptive LED frequencies—that wash out faint deep-sky objects.\u003c\/p\u003e\n\u003cp\u003eBy removing the offending wavelengths, the STC Astro Multispectra filter darkens the sky background significantly. This allows you to use longer exposures from compromised locations, revealing faint nebulosity and galactic structure while preserving a natural color balance in stars and surrounding fields.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eHigh-Contrast Imaging of H-α, H-β, and OIII Targets\u003c\/h3\u003e\n\u003cp\u003eWhile aggressively filtering light pollution, the STC Astro Multispectra preserves the most important wavelengths for astrophotography. The filter's bandpass is tailored to transmit the deep red of Hydrogen-alpha, the teal of Oxygen-III, and the blue-green of Hydrogen-beta with high efficiency.\u003c\/p\u003e\n\u003cp\u003eThis selective transmission dramatically increases the contrast between emission nebulae and the background sky. Objects like the North American Nebula (NGC 7000) or the Orion Nebula (M42) stand out with enhanced structure and saturation, producing images with greater depth and clarity even from a backyard observatory.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSchott B270 Glass and Ion Beam Assisted Coatings\u003c\/h3\u003e\n\u003cp\u003eThe filter's optical foundation is premium Schott B270 glass, known for its clarity and homogeneity. This ensures that the filter imparts no degradation to your imaging system's resolution. Each surface is treated with STC’s proprietary Ultra Layer coatings applied via Ion Beam Assisted Deposition (IBAD).\u003c\/p\u003e\n\u003cp\u003eThis advanced coating process results in an exceptionally hard, durable, and environmentally stable surface that resists moisture and is easier to clean. The multi-layer coatings are also optimized to minimize reflections and prevent the halos around bright stars that can plague inferior filters, ensuring maximum light transmission of the desired wavelengths.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of light pollution does the WO STC Astro Multispectra filter block?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe filter is designed to suppress the most common sources of urban light pollution, including \u003cstrong\u003emercury vapor lamps\u003c\/strong\u003e, \u003cstrong\u003ehigh and low-pressure sodium vapor lamps\u003c\/strong\u003e, and certain wavelengths of \u003cstrong\u003eLED lighting\u003c\/strong\u003e that cause skyglow.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 48mm STC Astro Multispectra filter good for imaging galaxies like Andromeda (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is very effective for broadband targets like galaxies. By reducing skyglow, the filter increases the contrast between the galaxy's faint outer arms and the night sky. Unlike narrowband filters, it preserves the natural star colors in the galaxy's halo and core, making it an excellent choice for imaging M31 from suburban locations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the STC Astro Multispectra filter affect star color compared to a UHC filter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe STC Astro Multispectra is designed to produce more \u003cstrong\u003enatural star colors\u003c\/strong\u003e. While a traditional UHC (Ultra High Contrast) filter creates very high contrast on nebulae, it often does so at the cost of a strong blue-green color cast. This filter uses a multi-bandpass approach to let more of the stellar continuum through, resulting in a more balanced and photographically neutral image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the STC Astro Multispectra 48mm filter with a full-frame camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the \u003cstrong\u003e48mm (or 2-inch) filter size\u003c\/strong\u003e is ideal for use with full-frame DSLR or dedicated astronomy cameras. The large format prevents vignetting, ensuring the sensor is evenly illuminated from corner to corner, which is critical for wide-field astrophotography and Milky Way landscapes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat makes the IBAD coatings on this filter special?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eIon Beam Assisted Deposition (IBAD)\u003c\/strong\u003e is an advanced coating process that creates extremely dense and durable layers on the optical surface. This makes the filter's coatings highly resistant to scratching from routine cleaning and degradation from environmental factors like humidity. It also yields superior anti-reflection performance, preventing halos and internal reflections.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this filter suitable for imaging large targets like the North American Nebula (NGC 7000)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. This filter is perfect for large, emission-rich targets like the North American Nebula (NGC 7000) or the Veil Nebula complex. It allows the critical \u003cstrong\u003eH-alpha and OIII\u003c\/strong\u003e light from the nebula to pass through while blocking skyglow, making it ideal for capturing these objects with wide-field refractors or camera lenses.\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\u003eFilter Type\u003c\/td\u003e\n\u003ctd\u003eAstro Multispectra Light Pollution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e48mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThread\u003c\/td\u003e\n\u003ctd\u003eM48\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGlass Substrate\u003c\/td\u003e\n\u003ctd\u003eSchott B270\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoating Technology\u003c\/td\u003e\n\u003ctd\u003eSTC Ultra Layer IBAD\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 STC Ultra Layer Astro Multispectra Filter - 48mm\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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967226573085,"sku":"WO-YF-STC-M48","price":328.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-STC-Ultra-Layer-Astro-Multispectra-Filter-48mm-YF-STC-M48-1__78203.1596133266.1280.1280.jpg?v=1684339482"},{"product_id":"chroma-h-alpha-filter-3nm","title":"Chroma H-alpha Filter - 3nm","description":"\u003c!-- more --\u003e\u003cp\u003eH-alpha filters are essential for imaging nebulae and other objects which are rich in ionized hydrogen. At 656.3nm, a narrow-band emission filter is required to separate H-alpha from the SII doublet (671.6nm and 673.1nm).\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFilters designed for use with CCD and for f\/4.0 or slower\u003c\/li\u003e\n\u003cli\u003eNo reflections leading to image distortions or \"back reflections\"\u003c\/li\u003e\n\u003cli\u003eTransmitted wavefront better than 0.25 waves\/inch\u003c\/li\u003e\n\u003cli\u003eDurable sputter coatings\u003c\/li\u003e\n\u003cli\u003eParallelism: \u0026lt; 30 arcsec\u003c\/li\u003e\n\u003cli\u003eThickness: 3.0 +\/-0.05mm\u003c\/li\u003e\n\u003cli\u003eExtremely durable coatings withstand humidity changes and extreme temperature fluxes and remain spectrally accurate\u003c\/li\u003e\n\u003cli\u003ein CWL and band pass adherence\u003c\/li\u003e\n\u003cli\u003eCapable of manufacturing large filters for large detectors: 50mm x 50mm, 65mm up to 76.2mm and 101.6mm square\u003c\/li\u003e\n\u003cli\u003eAll filters manufactured in Vermont\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eChroma manufactures the highest quality astronomy filters with durable, sputtered hard coatings using single substrates of the best glass, eliminating the need for laminations. All primary filter coatings are applied on the front surface and anti-reflection coatings on the rear surface to prevent ghosting and to maximize transmission.\u003c\/p\u003e\u003cp\u003eHighly precise and accurate, the passbands of these filters remain spectrally stable and do not drift in response to extreme temperature fluctuations or changes in humidity. All filters may be used with apertures of f\/4 or smaller. They provide custom coating services for more demanding imaging applications requiring larger apertures such as f\/3 or f\/2. They also can provide larger sizes and unique passbands upon request.\u003c\/p\u003e","brand":"Chroma","offers":[{"title":"1.25\" Round Mounted","offer_id":44967243612445,"sku":"CT-27001-1.25M","price":805.0,"currency_code":"CAD","in_stock":true},{"title":"31mm Round Unmounted","offer_id":44967243645213,"sku":"CT-27001-31D","price":805.0,"currency_code":"CAD","in_stock":true},{"title":"36mm Round Unmounted","offer_id":44967243677981,"sku":"CT-27001-36D","price":1085.0,"currency_code":"CAD","in_stock":true},{"title":"2\" Round Mounted","offer_id":44967243710749,"sku":"CT-27001-2M","price":1820.0,"currency_code":"CAD","in_stock":true},{"title":"50mm Round Unmounted","offer_id":44967243743517,"sku":"CT-27001-50D","price":1750.0,"currency_code":"CAD","in_stock":true},{"title":"50x50mm Square Unmounted","offer_id":44967243776285,"sku":"CT-27001-50X50","price":2170.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Transmission-Curve-of-Chroma-H-alpha-3nm-Filter__77186.1596071504.1280.1280.jpg?v=1684339497"},{"product_id":"chroma-h-alpha-filter-5nm","title":"Chroma H-alpha Filter - 5nm","description":"\u003c!-- more --\u003e\u003cp\u003eH-alpha filters are essential for imaging nebulae and other objects which are rich in ionized hydrogen. At 656.3nm, a narrow-band emission filter is required to separate H-alpha from the SII doublet (671.6nm and 673.1nm).\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFilters designed for use with CCD and for f\/4.0 or slower\u003c\/li\u003e\n\u003cli\u003eNo reflections leading to image distortions or \"back reflections\"\u003c\/li\u003e\n\u003cli\u003eTransmitted wavefront better than 0.25 waves\/inch\u003c\/li\u003e\n\u003cli\u003eDurable sputter coatings\u003c\/li\u003e\n\u003cli\u003eParallelism: \u0026lt; 30 arcsec\u003c\/li\u003e\n\u003cli\u003eThickness: 3.0 +\/-0.05mm\u003c\/li\u003e\n\u003cli\u003eExtremely durable coatings withstand humidity changes and extreme temperature fluxes and remain spectrally accurate\u003c\/li\u003e\n\u003cli\u003ein CWL and band pass adherence\u003c\/li\u003e\n\u003cli\u003eCapable of manufacturing large filters for large detectors: 50mm x 50mm, 65mm up to 76.2mm and 101.6mm square\u003c\/li\u003e\n\u003cli\u003eAll filters manufactured in Vermont\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eChroma manufactures the highest quality astronomy filters with durable, sputtered hard coatings using single substrates of the best glass, eliminating the need for laminations. All primary filter coatings are applied on the front surface and anti-reflection coatings on the rear surface to prevent ghosting and to maximize transmission.\u003c\/p\u003e\u003cp\u003eHighly precise and accurate, the passbands of these filters remain spectrally stable and do not drift in response to extreme temperature fluctuations or changes in humidity. All filters may be used with apertures of f\/4 or smaller. They provide custom coating services for more demanding imaging applications requiring larger apertures such as f\/3 or f\/2. They also can provide larger sizes and unique passbands upon request.\u003c\/p\u003e","brand":"Chroma","offers":[{"title":"1.25\" Round Mounted","offer_id":44967243809053,"sku":"CT-27002-1.25M","price":644.0,"currency_code":"CAD","in_stock":true},{"title":"31mm Round Unmounted","offer_id":44967243841821,"sku":"CT-27002-31D","price":644.0,"currency_code":"CAD","in_stock":true},{"title":"36mm Round Unmounted","offer_id":44967243874589,"sku":"CT-27002-36D","price":868.0,"currency_code":"CAD","in_stock":true},{"title":"2\" Round Mounted","offer_id":44967243907357,"sku":"CT-27002-2M","price":1365.0,"currency_code":"CAD","in_stock":true},{"title":"50mm Round Unmounted","offer_id":44967243940125,"sku":"CT-27002-50D","price":1295.0,"currency_code":"CAD","in_stock":true},{"title":"50x50mm Square Unmounted","offer_id":44967243972893,"sku":"CT-27002-50X50","price":1932.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Transmission-Curve-of-Chroma-H-alpha-5nm-Filter__56496.1596071505.1280.1280.jpg?v=1684339501"}],"url":"https:\/\/davidastro.com\/en-us\/collections\/astrophotography.oembed?page=19","provider":"David Astro","version":"1.0","type":"link"}