{"title":"T-Rings, Spacers \u0026 Thread Adapters","description":null,"products":[{"product_id":"celestron-1-25-universal-barlow-and-t-adapter","title":"Celestron 1.25\" Universal Barlow and T-Adapter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eThree-in-one design: 2x visual Barlow, prime focus T-adapter, and tele-extended T-adapter\u003c\/li\u003e\n\u003cli\u003eDoubles the magnification of any 1.25\" eyepiece\u003c\/li\u003e\n\u003cli\u003eConnects DSLR\/SLR cameras to a telescope for astrophotography\u003c\/li\u003e\n\u003cli\u003eStandard 1.25\" (32mm) barrel fits most focusers\u003c\/li\u003e\n\u003cli\u003eWeighs only 2.3 oz (65 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 Universal Barlow and T-Adapter - 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe Celestron Universal Barlow and T-Adapter is a single 1.25\" (32mm) accessory that provides three distinct functions for visual observers and imagers. This compact unit, with an external length of 76mm (3\"), functions as a 2x Barlow for visual use, a prime focus T-adapter for turning your telescope into a massive camera lens, and a \"tele-extended\" adapter that doubles photographic magnification. At a minimal weight of just 2.3 oz (65 g), it adds significant capability without impacting your telescope's balance.\u003c\/p\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 2x Barlow for Any 1.25\" Eyepiece\u003c\/h3\u003e\n\u003cp\u003eIn its default configuration, this accessory functions as a powerful 2x Barlow. Simply insert any 1.25\" eyepiece to instantly double its magnification, effectively turning a 20mm eyepiece into a 10mm. This is an economical way to expand your range of available magnifications without buying a full new set of eyepieces, and it maintains the comfortable eye relief of the original eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eYour Telescope as a Prime Photographic Lens\u003c\/h3\u003e\n\u003cp\u003eFor astrophotographers, the Celestron Universal Barlow \u0026amp; T-Adapter converts into a prime focus adapter. By unscrewing the lower lens element, you are left with a hollow extension tube with T-threads on top. Attach a camera-specific T-Ring (sold separately), and you can connect your DSLR or SLR camera directly to the telescope's 1.25\" focuser, using your scope's native focal length to capture wide-field images of the Moon or terrestrial subjects.\u003c\/p\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 2x Magnifier for Astrophotography\u003c\/h3\u003e\n\u003cp\u003eThe third configuration, known as tele-extended or \"Barlowed\" imaging, solves a common problem with fast refractors and Newtonian reflectors. These telescopes often lack sufficient inward focus travel to reach a sharp focus in prime focus mode. By reattaching the Barlow lens, the adapter pushes the focal point outward, allowing the camera to reach focus while also doubling the telescope's effective focal length for 2x larger images on your camera sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the three ways I can use the Celestron Universal Barlow \u0026amp; T-Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis 1.25\" accessory serves three functions:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2x Visual Barlow:\u003c\/strong\u003e Doubles the magnification of any 1.25\" eyepiece you insert into it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrime Focus T-Adapter:\u003c\/strong\u003e After unscrewing the lens element, it connects your DSLR\/SLR camera (with a T-Ring) to the telescope, using the scope's native focal length.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\"Barlowed\" T-Adapter:\u003c\/strong\u003e It connects your camera to the telescope and uses the lens element to double the imaging magnification, which also helps achieve focus on scopes with limited travel.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need anything else to connect my camera with this Universal T-Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. You will need a \u003cstrong\u003eT-Ring\u003c\/strong\u003e that is specific to your camera's brand and model (e.g., Canon EOS, Nikon F-mount). The T-Adapter has the male T-threads, and the T-Ring has the female T-threads on one side and the camera's lens mount on the other.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy short-tube refractor won't reach focus for prime focus photography. Will this adapter help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is exactly what the \"tele-extended\" mode is for. By keeping the Barlow lens element attached to the T-adapter, the focal plane is extended outward, which typically provides the extra focus travel needed for fast refractors and Newtonians to achieve a sharp image on the camera sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow can I use the Celestron Universal Barlow \u0026amp; T-Adapter to photograph the Moon with my 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor an 8\" SCT, you have two great options. For a full-disc image of the Moon, use the adapter in \u003cstrong\u003eprime focus mode\u003c\/strong\u003e (Barlow lens removed). This uses the telescope's native ~2000mm focal length. To capture close-up details of specific craters like Copernicus or Tycho, use it in \u003cstrong\u003etele-extended mode\u003c\/strong\u003e (Barlow lens attached) to double the effective focal length to ~4000mm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes using the Celestron Universal Barlow \u0026amp; T-Adapter as a Barlow affect eye relief?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, one of the key benefits of this design is that it doubles the magnification while preserving the original eye relief of the eyepiece you are using. This is especially helpful for eyeglass wearers who rely on the long eye relief of low-power eyepieces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the lens element in the Celestron Universal Barlow \u0026amp; T-Adapter multi-coated?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile the product is designed for high-contrast views, the manufacturer does not specify the exact coating details. It is engineered to provide sharp, 2x magnification for both visual and imaging applications.\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\u003e2.3 oz (65 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\" (32mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Length\u003c\/td\u003e\n\u003ctd\u003e3\" (76mm)\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\"\u003eUniversal Barlow and T-Adapter 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\"\u003eRemovable 2x Barlow Lens Element\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Caps\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Celestron_Universal_Barlow_and_T-Adapter_Manual.pdf?v=1782260667\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967180534045,"sku":"CEL-93640","price":97.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-1-25-inch-Universal-Barlow-and-T-Adapter-93640-1__03439.1594230498.1280.1280.jpg?v=1684338252"},{"product_id":"celestron-48mm-t-adapter-for-edgehd-9-25-11-and-14","title":"Celestron 48mm T-Adapter for EdgeHD 9.25”, 11”, and 14”","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects full-frame DSLR and astronomical cameras to EdgeHD 9.25\", 11\", and 14\" telescopes\u003c\/li\u003e\n\u003cli\u003eFeatures a wide M48 x 0.75 thread to eliminate vignetting on large sensors\u003c\/li\u003e\n\u003cli\u003eProvides a larger, unhindered light path compared to standard 42mm adapters\u003c\/li\u003e\n\u003cli\u003eWeighs just 8 oz (226.79 g)\u003c\/li\u003e\n\u003cli\u003eEngineered for a precise 91mm flange distance\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 48mm T-Adapter for EdgeHD 9.25”, 11”, and 14”\u003c\/h2\u003e\n\u003cp\u003eThe Celestron 48mm T-Adapter for EdgeHD 9.25”, 11”, and 14” is the definitive solution for connecting full-frame cameras to your telescope, using a larger M48 x 0.75 thread to deliver a fully illuminated light path to the sensor. Weighing only 8 oz, this adapter is specifically designed to overcome the vignetting that occurs with standard 42mm adapters on full-frame sensors. It ensures the entire sensor receives the maximum amount of light from the EdgeHD optics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFull-Frame Illumination: The M48 x 0.75 Advantage\u003c\/h3\u003e\n\u003cp\u003eAs DSLR and dedicated astronomy camera sensors grow larger, the physical aperture of the connecting hardware becomes the limiting factor in image quality. This 48mm T-Adapter provides a significantly larger clear aperture than a standard M42 adapter, preventing the light cone from being truncated before it reaches the sensor. The result is an image free of darkened corners, allowing you to use your full-frame sensor's entire area effectively.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e48mm vs. 42mm T-Adapter: Why the Larger Thread Matters\u003c\/h3\u003e\n\u003cp\u003eThe standard M42 T-Adapter was designed when smaller sensors were the norm. For modern full-frame cameras, its 42mm opening acts as a bottleneck, physically blocking light from reaching the outer edges of the sensor. This Celestron 48mm T-Adapter is the direct upgrade for imagers using full-frame cameras with an EdgeHD 9.25\", 11\", or 14\" optical tube.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor Full-Frame Sensors:\u003c\/strong\u003e The 48mm adapter is essential. It allows the unhindered light cone to illuminate the entire sensor, maximizing signal and producing evenly lit frames.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor APS-C Sensors:\u003c\/strong\u003e If you are using a camera with a smaller APS-C sensor, this 48mm adapter offers no advantage. The standard 42mm T-Adapter is sufficient to fully illuminate these smaller chips.\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\"\u003eIs the Celestron 48mm T-Adapter required for my full-frame camera on an EdgeHD 11\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. To avoid significant vignetting (darkening in the corners of your images), the 48mm T-Adapter is the recommended accessory. A standard 42mm adapter will physically constrict the light path, preventing full illumination of a 35mm-format sensor on an EdgeHD 9.25\", 11\", or 14\" telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this 48mm T-Adapter improve images from my APS-C camera on an EdgeHD 9.25\" scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter will not offer any advantage for smaller APS-C sensors. The light cone from the EdgeHD optics is already large enough to be fully captured by an APS-C sensor through a standard 42mm T-Adapter. You should use the Celestron 42mm T-Adapter (#93646) for APS-C cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between an M42 and an M48 thread on this T-Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe numbers refer to the diameter of the thread in millimeters. The M48 thread on this adapter has a larger opening than the M42 thread on standard T-adapters. This larger diameter is crucial for passing a wider cone of light to a large, full-frame imaging sensor without obstruction.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a special T-Ring for the Celestron 48mm T-Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, you must use a T-Ring with a corresponding M48 x 0.75 thread. Standard 42mm T-Rings are not compatible. While Celestron does not manufacture 48mm T-Rings, they are readily available from other manufacturers for popular camera brands like Canon, Nikon, and Sony.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter work with my EdgeHD 8\" telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is specifically designed for the larger rear cells of the EdgeHD 9.25\", 11\", and 14\" models. A different adapter is required for the EdgeHD 8\" optical tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the total back focus consumed by the 48mm T-Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter itself does not have a listed back focus consumption, but it is part of the overall imaging train. The critical distance for EdgeHD telescopes is from the rear flange to the sensor, and this adapter is designed to place your camera sensor at the correct distance when used with a standard T-ring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Telescopes\u003c\/td\u003e\n\u003ctd\u003eEdgeHD 9.25\", 11\", and 14\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eT-Ring Threads\u003c\/td\u003e\n\u003ctd\u003eM48 x 0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncompatible T-Rings\u003c\/td\u003e\n\u003ctd\u003eM42 x 0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlange Distance\u003c\/td\u003e\n\u003ctd\u003e91mm (3.58\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutside Diameter\u003c\/td\u003e\n\u003ctd\u003e72mm (2.83\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e8 oz (226.79 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cimg class=\"DAV-img-box\" alt=\"Celestron 48mm T-Adapter for EdgeHD 9.25”, 11”, and 14”\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-48mm-T-Adapter-for-EdgeHD-9.25-11-and-14-1.jpg?v=1782200871\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e48mm T-Adapter for EdgeHD 9.25”, 11”, and 14”\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\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":44967180632349,"sku":"CEL-93622","price":104.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-48mm-T-Adapter-for-EdgeHD-9-25-inch-11-inch-and-14-inch-93622-1__72191.1594229451.1280.1280.jpg?v=1684338259"},{"product_id":"celestron-camera-adapter-for-canon-mirrorless-rasa-8","title":"Celestron Camera Adapter for Canon Mirrorless, RASA 8","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAttaches Canon mirrorless cameras to the 8\" RASA\u003c\/li\u003e\n\u003cli\u003eUses the camera's bayonet mount for a secure fit\u003c\/li\u003e\n\u003cli\u003eProvides minimal optical obstruction\u003c\/li\u003e\n\u003cli\u003ePlaces sensor at the correct backfocus distance\u003c\/li\u003e\n\u003cli\u003eDurable and lightweight 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\u003eCelestron T-Adapter for Canon Mirrorless, Rowe-Ackermann Schmidt Astrograph (RASA) 8\u003c\/h2\u003e\n\u003cp\u003eThe Celestron T-Adapter for Canon Mirrorless cameras is the essential accessory for connecting your Canon EOS M series camera to the 8” Rowe-Ackermann Schmidt Astrograph (RASA). This adapter ensures a secure, perfectly spaced connection, enabling you to capture spectacular deep-sky astronomical images with your compact, sensitive mirrorless camera.\u003c\/p\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 Connection and Precise Backfocus for Canon Mirrorless\u003c\/h3\u003e\n\u003cp\u003eThis adapter is engineered specifically for the 8\" RASA and Canon mirrorless cameras. It connects directly to the camera's native bayonet mount, creating a rigid and reliable link to the front of the astrograph. The compact profile of mirrorless cameras provides minimal obstruction for the RASA's optical path, and this adapter maintains that advantage while placing the camera's sensor at the precise backfocus distance needed for edge-to-edge image sharpness.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this Celestron T-Adapter compatible with Canon DSLR cameras?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is designed exclusively for \u003cstrong\u003eCanon mirrorless cameras\u003c\/strong\u003e that use the EOS M bayonet mount. It is not compatible with Canon DSLR cameras (EF or EF-S mount) due to differences in mount design and backfocus distance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need a special adapter for the RASA 8?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Rowe-Ackermann Schmidt Astrograph (RASA) 8 has a prime-focus imaging system where the camera is mounted at the front of the optical tube. This T-Adapter is required to securely attach your camera and place its sensor at the RASA's specific focal plane for sharp, focused images across the entire field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter work with the 11\" or 36cm RASA models?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this T-Adapter is specifically designed for the \u003cstrong\u003e8\" RASA\u003c\/strong\u003e. The larger RASA models have different mounting threads and backfocus requirements, and require their own dedicated camera adapters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Celestron T-Adapter for RASA 8 handle obstruction?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter is designed to be as low-profile as possible, complementing the compact body of a Canon mirrorless camera. This combination creates minimal obstruction at the front of the RASA 8, preserving light-gathering capability and image contrast.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of imaging performance can I expect with the RASA 8 and this adapter on the Orion Nebula (M42)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen using a Canon mirrorless camera with the RASA 8 via this adapter, you can capture the entirety of the Orion Nebula (M42) and its surrounding structures in a single frame. The RASA's fast f\/2 optical system allows for very short exposures, revealing faint nebulosity and fine detail in the Trapezium region with minimal noise.\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 Celestron T-Adapter for RASA 8?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter does not have integrated filter threads. To use filters with the RASA 8, you would typically use an optional filter drawer or filter slider that installs between the RASA's lens group and the camera adapter.\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\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\"\u003eT-Adapter for Canon Mirrorless, RASA 8\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Celestron_EdgeHD_Optics_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload RASA Whitepaper\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":44967180697885,"sku":"CEL-93406","price":89.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-Camera-Adapter-for-Canon-Mirrorless-Rowe-Ackermann-Schmidt-Astrograph-RASA-8-93406-1__14403.1594230499.1280.1280.jpg?v=1684338262"},{"product_id":"celestron-camera-adapter-for-sony-mirrorless-rasa-8","title":"Celestron Camera Adapter for Sony Mirrorless, RASA 8","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts Sony mirrorless cameras to the Celestron 8\" RASA\u003c\/li\u003e\n\u003cli\u003eUses the camera's bayonet mount for a secure connection\u003c\/li\u003e\n\u003cli\u003eProvides minimal optical obstruction\u003c\/li\u003e\n\u003cli\u003ePlaces the camera sensor at the precise backfocus distance\u003c\/li\u003e\n\u003cli\u003e2-Year Celestron 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\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 T-Adapter for Sony Mirrorless, Rowe-Ackermann Schmidt Astrograph (RASA) 8\u003c\/h2\u003e\n\u003cp\u003eThis Celestron T-Adapter is the essential component for connecting your Sony mirrorless camera to the 8\" Rowe-Ackermann Schmidt Astrograph (RASA), creating a powerful deep-sky imaging system. The adapter is engineered to place your camera's sensor at the exact backfocus distance required by the RASA 8's optical design, ensuring sharp, focused stars across the entire field of view. It attaches securely to the camera's native bayonet mount, providing a rigid connection with minimal obstruction for optimal image quality.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe Essential Link for RASA 8 and Sony Mirrorless\u003c\/h3\u003e\n\u003cp\u003eMirrorless cameras are an ideal match for the RASA 8, combining sensitive imaging sensors with a compact body that minimizes obstruction at the front of the optical tube. This T-Adapter makes that pairing possible, providing a direct, secure attachment between the RASA's front lens group and the camera body. By using the camera's own bayonet mount, the adapter ensures a stable connection that prevents tilt and maintains perfect alignment throughout an 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\u003eEngineered for Correct Backfocus on the 8\" RASA\u003c\/h3\u003e\n\u003cp\u003eAchieving the correct backfocus is critical for any astrograph, and the RASA 8 is no exception. This adapter isn't just a physical connector; it's a precisely machined spacer that guarantees your camera's sensor is positioned at the optimal focal plane. This precision eliminates guesswork and ensures your deep-sky images are as sharp and detailed as the RASA's optics can deliver, capturing every photon without compromise.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this Celestron T-Adapter required to use a Sony mirrorless camera with the RASA 8?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this adapter is a must-have accessory. It is specifically designed to provide both the physical connection via the Sony bayonet mount and the precise backfocus distance needed for the RASA 8 optical system to achieve sharp focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy are mirrorless cameras a good choice for the RASA 8?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eMirrorless cameras offer two key advantages for the RASA 8. First, their compact and lightweight bodies create minimal obstruction when mounted at the front of the telescope. Second, their highly sensitive imaging sensors are well-suited for capturing the faint details in deep-sky objects that the RASA's fast optical system gathers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this T-Adapter attach to my camera and the RASA 8?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter attaches directly to your Sony mirrorless camera using its integrated bayonet mount, just like a standard camera lens. The other side of the adapter then threads securely onto the front of the RASA 8 optical tube assembly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter work with other Celestron telescopes or other camera brands?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is designed specifically for the combination of a Sony mirrorless camera and the Celestron 8\" RASA. It will not provide the correct spacing or mounting for other telescopes or different camera brands.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes using this adapter affect the image quality from my RASA 8?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed to optimize image quality. By placing the sensor at the correct backfocus distance, it ensures you achieve the maximum sharpness and performance that the RASA 8 optics are capable of delivering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of imaging can I do with a Sony mirrorless camera on my RASA 8?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis combination is ideal for capturing wide-field, deep-sky objects. You can image large nebulae like the Orion Nebula (M42) or the North America Nebula (NGC 7000), as well as broad galaxy clusters and rich star fields, taking full advantage of the RASA's expansive, flat 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\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eCelestron 8\" Rowe-Ackermann Schmidt Astrograph (RASA)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Mount\u003c\/td\u003e\n\u003ctd\u003eSony Mirrorless (E-mount)\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\"\u003eT-Adapter for Sony Mirrorless, RASA 8\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967180763421,"sku":"CEL-93405","price":89.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-Camera-Adapter-for-Sony-Mirrorless-Rowe-Ackermann-Schmidt-Astrograph-RASA-8-93405-1__79090.1594230499.1280.1280.jpg?v=1684338265"},{"product_id":"celestron-t-adapter-for-scts","title":"Celestron T-Adapter for SCTs","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eSecurely attaches SLR\/DSLR cameras to Schmidt-Cassegrain telescopes\u003c\/li\u003e\n\u003cli\u003eEnables prime focus photography for high-resolution imaging\u003c\/li\u003e\n\u003cli\u003eThreads directly onto the rear cell of SCTs\u003c\/li\u003e\n\u003cli\u003eMetal construction for a rigid, flex-free connection\u003c\/li\u003e\n\u003cli\u003eRequires a camera-specific T-Ring for use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eCelestron T-Adapter for Schmidt-Cassegrain Telescopes\u003c\/h2\u003e\n\u003cp\u003eThe Celestron T-Adapter for Schmidt-Cassegrain Telescopes is the essential accessory for connecting your DSLR or SLR camera directly to your telescope's rear cell, enabling prime focus astrophotography. This all-metal adapter transforms your SCT into a massive telephoto lens, allowing you to use the telescope's native focal length—like 2000mm on an 8” SCT—to capture detailed, high-magnification images of the Moon and other celestial objects. To begin, simply pair the adapter with a T-Ring specific to your camera brand, thread it onto the telescope's rear cell, and attach your camera body for a secure, direct optical path.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePrime Focus Photography: The Direct Path to Your SCT\u003c\/h3\u003e\n\u003cp\u003eThis T-Adapter is engineered for one purpose: to create the most direct and rigid connection between your camera sensor and your telescope's optical system. By removing the diagonal and visual back, you thread this adapter directly onto your SCT's rear cell. This prime focus configuration bypasses all other accessories, minimizing potential flexure and ensuring the sharpest possible image is projected straight from the telescope's optics onto your camera's sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFrom Telescope to 2000mm Telephoto Lens\u003c\/h3\u003e\n\u003cp\u003eWhen connected via the T-Adapter, your camera uses the telescope as its lens, leveraging its full focal length and light-gathering power. An 8-inch Schmidt-Cassegrain, for example, becomes a powerful 2000mm telephoto lens, dwarfing the capabilities of standard camera lenses. This immense magnification is what allows you to fill the frame with craters on the Moon or capture detailed images of terrestrial subjects at a great distance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eShort vs. Long Exposure: Lunar and Deep-Sky Imaging\u003c\/h3\u003e\n\u003cp\u003ePrime focus photography with the T-Adapter is perfectly suited for short-exposure imaging of bright objects. The Moon, planets, and daytime terrestrial targets are ideal subjects. For longer exposures required to capture faint deep-sky objects like nebulae and galaxies, a stable setup is critical. Celestron recommends using an equatorial mount and a separate guidescope or off-axis guider to ensure sharp, star-pointed images during multi-minute exposures.\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 do I need besides the Celestron T-Adapter to connect my camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou will need a \u003cstrong\u003eT-Ring\u003c\/strong\u003e that matches your specific camera brand (e.g., Canon EOS or Nikon). The T-Ring attaches to your camera body in place of the lens, and then threads onto the T-Adapter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install the T-Adapter on my Schmidt-Cassegrain telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFirst, remove any accessories from the back of your telescope, such as the diagonal and visual back. Then, screw the Celestron T-Adapter directly onto the large threads of the telescope's rear cell until it is secure. Finally, thread your camera (with T-Ring attached) onto the T-Adapter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this T-Adapter for deep-sky objects like the Orion Nebula (M42)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, but it requires a proper setup for long exposures. To photograph faint objects, you will need to mount your SCT on a sturdy equatorial mount and use a guiding system (like an off-axis guider or a separate guidescope) to correct for tracking errors during the exposure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of magnification will I get with the Celestron T-Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe T-Adapter itself does not add magnification. It allows your camera to use your telescope's native focal length. For an 8\" SCT with a 2000mm focal length, you are effectively shooting with a 2000mm lens. The final image scale depends on your camera's sensor size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this T-Adapter suitable for imaging the Moon with my 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. This is the ideal method for lunar photography. The long focal length of an 8\" SCT will provide a large, detailed image of the Moon on your camera sensor, allowing you to capture individual craters and mountain ranges with very short exposures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Celestron T-Adapter work on non-SCT telescopes like refractors or Newtonians?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this T-Adapter is specifically designed with threads that match the rear cell of a Schmidt-Cassegrain telescope. You would need a different type of T-adapter or prime focus adapter for other telescope designs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eSchmidt-Cassegrain Telescope Rear Cells\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Connection\u003c\/td\u003e\n\u003ctd\u003eRequires camera-specific T-Ring (sold separately)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhotography Style\u003c\/td\u003e\n\u003ctd\u003ePrime Focus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eMetal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\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 T-Adapter for SCTs\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/93633-a-t-adapter-sct_0.jpg?v=1684313262\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eT-Adapter for Schmidt-Cassegrain Telescopes\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\u003cp\u003eNo downloads are available for this product.\u003c\/p\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":44967180861725,"sku":"CEL-93633-A","price":49.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-T-Adapter-for-Schmidt-Cassegrain-Telescopes-93633-A-1__32963.1594230501.1280.1280.jpg?v=1684338274"},{"product_id":"celestron-t-adapter-edgehd-8","title":"Celestron T-Adapter, (EdgeHD 8)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAttaches DSLR cameras to 8\" EdgeHD optical tubes\u003c\/li\u003e\n\u003cli\u003eThreads directly onto the rear cell for a secure connection\u003c\/li\u003e\n\u003cli\u003eEnables prime focus photography for terrestrial, lunar, and planetary imaging\u003c\/li\u003e\n\u003cli\u003eRequired for connecting a camera-specific T-Ring to the telescope\u003c\/li\u003e\n\u003cli\u003eSupports long-exposure deep-sky imaging with a separate guidescope\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 T-Adapter for 8\" EdgeHD\u003c\/h2\u003e\n\u003cp\u003eThis Celestron T-Adapter connects your 35mm DSLR or astronomical camera directly to the prime focus of your 8” EdgeHD optical tube, backed by a 2-year warranty. It threads securely onto the telescope's rear cell, creating a rigid connection essential for sharp terrestrial, lunar, and planetary photography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePrime Focus DSLR Astrophotography with 8\" EdgeHD OTAs\u003c\/h3\u003e\n\u003cp\u003eThis T-Adapter is the primary component for attaching a camera to your 8\" EdgeHD telescope. By connecting your camera at the telescope's native focal plane, you can capture high-resolution images of the Moon's craters, planetary details like Jupiter's cloud bands, and sharp terrestrial subjects. For imagers looking to capture deep-sky objects, this adapter facilitates long-exposure photography when the system is guided with a separate guidescope and mount.\u003c\/p\u003e\n\u003cp\u003eTo complete the connection to a DSLR, a camera-brand-specific T-Ring is required. The T-Ring attaches to your camera's bayonet mount on one side and threads onto this T-Adapter on the other, ensuring a secure, all-metal imaging train from the telescope to the sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCelestron 2-Year Warranty Support\u003c\/h3\u003e\n\u003cp\u003eLike all Celestron accessories, this T-Adapter for the 8\" EdgeHD is covered by a 2-year factory warranty. This ensures the adapter is free from defects in materials and workmanship, giving you confidence in the mechanical integrity of your imaging setup.\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 do I need besides the Celestron T-Adapter to connect my DSLR to an 8\" EdgeHD?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou will need a \u003cstrong\u003eT-Ring\u003c\/strong\u003e specific to your camera's brand (e.g., Canon EOS, Nikon F-mount). The T-Adapter threads onto the telescope's rear cell, and the T-Ring threads onto the T-Adapter, allowing your camera body to securely attach.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this T-Adapter compatible with non-EdgeHD Celestron 8\" SCTs?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is specifically designed for the rear cell thread and back focus requirements of the \u003cstrong\u003e8\" EdgeHD\u003c\/strong\u003e optical tube. Standard Schmidt-Cassegrain telescopes require a different T-adapter, such as the Celestron #93633-A T-Adapter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this Celestron T-Adapter for visual observing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is purely for photography. It does not have a holder for eyepieces. For visual use, you would use a standard 1.25\" or 2\" visual back and diagonal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter work for imaging Jupiter with my 8\" EdgeHD?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this T-Adapter is perfect for prime-focus planetary imaging. It allows you to attach a high-frame-rate planetary camera or a DSLR (in video crop mode) to capture short exposures of bright targets like Jupiter and Saturn.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs a guidescope necessary for taking pictures of the Orion Nebula (M42) with the 8\" EdgeHD and this T-Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, for long-exposure deep-sky photography of objects like the Orion Nebula (M42), a separate guidescope and guide camera are highly recommended. While the adapter provides the physical connection, the long focal length of the 8\" EdgeHD requires precise tracking that only autoguiding can typically provide for exposures longer than about 30 seconds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Celestron T-Adapter for 8\" EdgeHD add any magnification?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter connects your camera at the telescope's prime focus, so it does not alter the native focal length or magnification of your 8\" EdgeHD. The image scale on your sensor is determined solely by the telescope's focal length.\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\u003eTelescope Connection\u003c\/td\u003e\n\u003ctd\u003eThreads onto 8\" EdgeHD Rear Cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Connection\u003c\/td\u003e\n\u003ctd\u003eMale T-Threads (M42x0.75)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Telescopes\u003c\/td\u003e\n\u003ctd\u003eCelestron 8\" EdgeHD Schmidt-Cassegrain OTAs\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 T-Adapter for 8\" EdgeHD\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Celestron_EdgeHD_Optics_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Celestron EdgeHD Optics Whitepaper\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":44967180894493,"sku":"CEL-93644","price":58.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-T-Adapter-EdgeHD-8-93644-1__49172.1594230501.1280.1280.jpg?v=1684338278"},{"product_id":"celestron-t-adapter-edgehd-925-11-14","title":"Celestron T-Adapter, (EdgeHD 925, 11 \u0026 14)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects DSLR cameras to EdgeHD telescopes\u003c\/li\u003e\n\u003cli\u003eDesigned for 9.25\", 11\", and 14\" models\u003c\/li\u003e\n\u003cli\u003eThreads directly to the rear cell for a secure connection\u003c\/li\u003e\n\u003cli\u003eEnables prime focus photography\u003c\/li\u003e\n\u003cli\u003eIdeal for terrestrial, lunar, and planetary imaging\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\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 T-Adapter for EdgeHD 9.25\", 11\" \u0026amp; 14\"\u003c\/h2\u003e\n\u003cp\u003eThe Celestron T-Adapter provides the essential threaded connection to attach your 35mm DSLR camera directly to the rear cell of an EdgeHD 9.25\", 11\", or 14\" telescope. This configuration enables prime focus astrophotography, using your telescope's native optics as a massive, high-resolution telephoto lens for capturing detailed images of the Moon, planets, and terrestrial subjects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePrime Focus Connection: The Direct Path for DSLR Imaging on EdgeHD 9.25\", 11\", and 14\" Telescopes\u003c\/h3\u003e\n\u003cp\u003eThis T-Adapter is the simplest and most rigid way to begin imaging with your large EdgeHD optical tube. By threading directly onto the rear cell, it creates a secure, non-flexing link between your telescope and camera, which is critical for maintaining sharp focus. This setup is optimized for short-exposure photography of bright targets where tracking precision is less demanding.\u003c\/p\u003e\n\u003cp\u003eFor long-exposure deep-sky astrophotography of nebulae and galaxies, this prime focus arrangement is still viable, but it requires the use of a separate guidescope and camera to ensure sharp, pinpoint stars. To complete the connection to your camera, you will also need a T-Ring specific to your camera's lens mount (e.g., Canon, Nikon, or Sony), which is sold separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat else do I need to connect my Canon DSLR to my EdgeHD 11\" with this T-Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou will need a \u003cstrong\u003eT-Ring\u003c\/strong\u003e that matches your camera's specific lens mount. For a Canon DSLR, you would need a Canon EOS T-Ring. The T-Adapter threads onto the telescope, and the T-Ring threads onto the T-Adapter, allowing your camera body to bayonet onto the T-Ring just like a lens.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this Celestron T-Adapter for deep-sky imaging of the Andromeda Galaxy (M31) with my EdgeHD 9.25\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, you can. However, for long exposures required for faint deep-sky objects like the Andromeda Galaxy (M31), you will need a very precisely polar-aligned equatorial mount and a separate autoguiding system (guidescope and guide camera). This T-Adapter provides the mechanical connection, but successful deep-sky imaging depends on accurate tracking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Celestron T-Adapter work with an EdgeHD 8\" telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this model is specifically designed for the larger rear cell threads of the \u003cstrong\u003eEdgeHD 9.25\", 11\", and 14\"\u003c\/strong\u003e models. For an EdgeHD 8\", you will need the Celestron T-Adapter for SCT \u0026amp; EdgeHD 8\" models, which has different threading.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is \"prime focus\" photography with the Celestron T-Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003ePrime focus\u003c\/strong\u003e means you are using the telescope's main optics to form an image directly onto your camera's sensor, with no eyepiece or other lens in between. This T-Adapter positions your DSLR at the telescope's focal plane, effectively turning your EdgeHD into a giant telephoto lens with its native focal length and f-ratio.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this T-Adapter good for high-magnification planetary imaging with my EdgeHD 14\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is best for wide-field shots of the Moon or capturing the full disk of Jupiter and Saturn. For high-magnification planetary imaging, you would typically use a high-frame-rate planetary camera and a Barlow lens to increase the effective focal length, rather than a DSLR at prime focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy can't I use a generic T-Adapter with my large EdgeHD telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Celestron EdgeHD 9.25\", 11\", and 14\" telescopes use a large-format 3.29\" rear cell thread for maximum stability and to prevent vignetting. Standard \"SCT\" T-adapters use a smaller 2\" thread. This adapter is specifically machined to match the larger threads on these optical tubes, ensuring a secure and correctly spaced connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967180960029,"sku":"CEL-93646","price":104.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-T-Adapter-EdgeHD-925-11-14-93646-1__64064.1643832166.1280.1280.jpg?v=1684338166"},{"product_id":"celestron-t-adapter-nexstar-4se","title":"Celestron T-Adapter, NexStar 4SE","description":"\u003cul class=\"DAV-feature-list\"\u003e\n  \u003cli\u003eConnects DSLR and SLR cameras to NexStar 4SE or C90 telescopes\u003c\/li\u003e\n  \u003cli\u003eEnables prime focus photography for celestial and terrestrial objects\u003c\/li\u003e\n  \u003cli\u003eThreads directly onto the telescope's rear cell for a secure fit\u003c\/li\u003e\n  \u003cli\u003eSturdy, single-piece aluminum 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\u003eCelestron T-Adapter, NexStar 4SE\u003c\/h2\u003e\n          \u003cp\u003eThis sturdy aluminum Celestron T-Adapter for the NexStar 4SE is the essential accessory for attaching your SLR or DSLR camera to a Celestron NexStar 4SE telescope or C90 spotting scope. It allows you to use your telescope as a powerful telephoto lens, enabling prime focus photography of the Moon, planets, and terrestrial subjects. The adapter provides a secure, direct-threaded connection between your telescope and the camera-specific T-Ring, ensuring a stable imaging platform.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"DAV-bg-light\"\u003e\n        \u003cdiv class=\"DAV-section\"\u003e\n          \u003ch3\u003eDirect-Thread Attachment for NexStar 4SE \u0026amp; C90 Scopes\u003c\/h3\u003e\n          \u003cp\u003eDesigned specifically for the smaller rear cell threads of the NexStar 4SE Maksutov-Cassegrain and the C90 spotting scope, this T-Adapter ensures a perfect fit. Unlike universal adapters that can introduce flexure or vignetting, this component threads directly onto your scope's rear cell, creating a rigid connection that is critical for sharp, prime-focus images.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"DAV-bg-light\"\u003e\n        \u003cdiv class=\"DAV-section\"\u003e\n          \u003ch3\u003eA Simple, Secure All-Metal Connection for Your Camera\u003c\/h3\u003e\n          \u003cp\u003eGetting started is straightforward. After removing the lens from your DSLR or SLR, attach the appropriate T-Ring for your camera brand (sold separately). The T-Adapter then screws onto the rear of your telescope, and the T-Ring with your camera attached threads directly onto the adapter. The result is an all-metal, secure imaging train with no weak points.\u003c\/p\u003e\n          \u003cul\u003e\n            \u003cli\u003e\n\u003cstrong\u003eSturdy Aluminum Body:\u003c\/strong\u003e A single piece of machined aluminum prevents any flexure or wobble that could compromise your images.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eSimple Installation:\u003c\/strong\u003e Just remove any existing visual back or accessory, screw on the T-Adapter, and then attach your camera and T-Ring.\u003c\/li\u003e\n            \u003cli\u003e\n\u003cstrong\u003eRequired T-Ring:\u003c\/strong\u003e You will need a T-Ring that matches your camera's lens mount (e.g., Canon EOS or Nikon F-mount) to complete the connection.\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\u003ePrime Focus Imaging: Turn Your NexStar 4SE into a 1325mm Telephoto Lens\u003c\/h3\u003e\n          \u003cp\u003ePrime focus photography places your camera's sensor directly at the telescope's focal plane, using the main optics as your camera lens. This method is ideal for capturing detailed, short-exposure images of bright objects. With the NexStar 4SE's long focal length, you can achieve high-magnification shots that are impossible with standard camera lenses.\u003c\/p\u003e\n          \u003cp\u003eThis setup excels for capturing sharp craters on the Moon, distant wildlife, or other terrestrial scenes. The direct connection maximizes light transmission and image contrast, delivering results that are limited only by the seeing conditions and your camera's capabilities.\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 do I need to attach my Canon DSLR to a NexStar 4SE with this T-Adapter?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eYou will need this Celestron T-Adapter for the NexStar 4SE and a separate T-Ring for Canon EOS cameras (model #93419). The T-Ring attaches to your camera body in place of the lens, and then it threads onto this T-Adapter.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the NexStar 4SE T-Adapter to photograph the Moon?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eFirst, attach your camera to the telescope using the T-Adapter and a T-Ring. Point the telescope at the Moon and achieve a rough focus using the telescope's focuser while viewing through your camera's live view screen. For the sharpest results, use your camera's digital zoom on live view to fine-tune the focus on a prominent crater before taking short-exposure images.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eIs this Celestron T-Adapter compatible with larger Celestron SCTs like an 8\"?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eNo, this T-Adapter is specifically designed for the smaller rear cell threads found on the NexStar 4SE and the C90 Spotting Scope. Larger Schmidt-Cassegrain telescopes require a different T-Adapter that fits the standard 2\" SCT rear cell threads.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use eyepieces with the NexStar 4SE T-Adapter for higher magnification?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eNo, this adapter is for prime focus photography only, where the telescope acts as the lens. It does not allow for eyepiece projection. For that, you would need a different type of universal or variable projection adapter.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of photography is the Celestron T-Adapter for NexStar 4SE best for?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eIt is ideal for short-exposure photography of bright subjects. This includes detailed images of the lunar surface, planetary shots (though this is challenging), and terrestrial subjects like wildlife or distant landscapes. It is not intended for long-exposure deep-sky astrophotography.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n      \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the T-Adapter for the NexStar 4SE made of plastic or metal?\u003c\/h3\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion-A\"\u003e\n      \u003cp\u003eThe T-Adapter is made from sturdy, machined aluminum to provide a rigid, flex-free connection between your telescope and camera, ensuring your images are as sharp as possible.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/li\u003e\n  \u003cli\u003e\n    \u003ctable class=\"DAV-specifications\"\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eCompatibility\u003c\/td\u003e\n          \u003ctd\u003eCelestron NexStar 4SE Telescope, C90 Spotting Scope\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eCamera Connection\u003c\/td\u003e\n          \u003ctd\u003eRequires camera-specific T-Ring (sold separately)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eTelescope Connection\u003c\/td\u003e\n          \u003ctd\u003eThreads onto rear cell of NexStar 4SE \/ C90\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003ePhotography Type\u003c\/td\u003e\n          \u003ctd\u003ePrime Focus\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMaterial\u003c\/td\u003e\n          \u003ctd\u003eAluminum\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\"\u003eT-Adapter for NexStar 4SE \/ C90\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\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Warranty\u003c\/a\u003e\n  \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967180992797,"sku":"CEL-93635-A","price":49.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-T-Adapter-NexStar-4SE-93635-A-1__91481.1594230502.1280.1280.jpg?v=1684338170"},{"product_id":"celestron-t-ring-for-canon-eos-camera","title":"Celestron T-Ring for Canon EOS Camera","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects Canon EOS-EF Mount DSLR\/Mirrorless cameras to telescopes\u003c\/li\u003e\n\u003cli\u003eReplaces the camera lens for direct, secure attachment\u003c\/li\u003e\n\u003cli\u003eEnables prime focus astrophotography through your telescope\u003c\/li\u003e\n\u003cli\u003eStandard T-threads accept a wide variety of telescope T-adapters\u003c\/li\u003e\n\u003cli\u003eRequired for imaging the Moon, planets, and deep-sky objects\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 T-Ring for Canon EOS-EF Mount Camera\u003c\/h2\u003e\n\u003cp\u003eThe Celestron T-Ring for Canon EOS-EF Mount Cameras is the foundational accessory for connecting your camera body directly to a telescope, enabling you to capture high-resolution images of the Moon, planets, and deep-sky objects. This T-Ring securely replaces your standard camera lens, converting your Canon EOS camera body into an interchangeable imaging system for your telescope with a 2-Year Warranty.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe Essential Adapter for Canon EOS Astrophotography\u003c\/h3\u003e\n\u003cp\u003eIf you own a Canon EOS camera, this T-Ring is the first and most critical component for prime focus astrophotography. By attaching it in place of a camera lens, you create a solid, threaded connection point. This allows your telescope to function as a massive telephoto lens, projecting its image directly onto your camera's sensor for the cleanest possible signal path.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eChoosing the Right T-Adapter for Your Telescope\u003c\/h3\u003e\n\u003cp\u003eOnce the T-Ring is on your camera, the telescope side features standard T-threads that connect to a separate T-adapter (sold separately). The correct T-adapter depends entirely on your telescope's design, as different optical systems have unique requirements for reaching focus.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSchmidt-Cassegrain Telescopes (SCTs):\u003c\/strong\u003e For standard Celestron SCTs, the #93633-A T-Adapter threads directly onto the rear cell.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefractors \u0026amp; Spotting Scopes:\u003c\/strong\u003e The Universal T-Adapter (#93625) with its 1.25” barrel is the standard choice for these instruments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEdgeHD Optical Systems:\u003c\/strong\u003e These flat-field systems require specific T-adapters to maintain their optical correction, such as the #93644 for the 8-inch EdgeHD or the #93646 for the 9.25, 11, and 14-inch models.\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 purpose of the Celestron T-Ring for Canon cameras?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe T-Ring is a mechanical adapter that allows you to attach your Canon EOS camera body to a telescope. It replaces your camera's lens and provides a standardized threaded connection (called a T-thread) that can then be attached to a telescope-specific T-adapter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need anything besides this T-Ring to connect my Canon EOS to my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The T-Ring is the first part of a two-part system. You will also need a T-adapter that matches your specific telescope (e.g., an SCT T-adapter, an EdgeHD T-adapter, or a universal 1.25\" T-adapter for refractors). The T-Ring attaches to your camera, and the T-adapter attaches to the T-Ring and your telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the Celestron T-Ring to photograph the Orion Nebula (M42) with my 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFirst, remove the lens from your Canon EOS camera and attach the T-Ring. Then, thread the Celestron #93633-A T-Adapter for SCTs onto the T-Ring. Finally, unthread the visual back from your telescope's rear cell and screw the T-adapter\/T-Ring\/camera assembly directly onto the telescope. You are now set up for prime focus imaging of M42.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this T-Ring work with Canon EF-S mount cameras?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the Canon EF mount is physically compatible with both EF and EF-S lenses and camera bodies. This T-Ring will attach to any Canon EOS camera that uses this mount, including both full-frame (EF) and APS-C (EF-S) models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use autofocus with the Celestron T-Ring attached?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. When you attach your camera to a telescope via a T-Ring, the telescope itself becomes the lens. There are no electronic connections to control autofocus. You must achieve focus manually using your telescope's focuser knob while viewing the image on your camera's live-view screen.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of photos can I take with the Celestron T-Ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis setup is ideal for \"prime focus\" photography. It is excellent for short-exposure images of the Moon and brighter planets. With an equatorial mount that tracks the sky, you can also take longer exposures needed to capture deep-sky objects like galaxies and nebulae.\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\u003eCamera Mount\u003c\/td\u003e\n\u003ctd\u003eCanon EOS (EF Mount)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Connection\u003c\/td\u003e\n\u003ctd\u003eM42x0.75 T-Threads\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 T-Ring for Canon EOS-EF Mount Camera\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":44967182336285,"sku":"CEL-93419","price":24.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-T-Ring-for-Canon-EOS-Camera-93419-1__20015.1594230503.1280.1280.jpg?v=1684338281"},{"product_id":"celestron-t-ring-for-nikon-camera","title":"Celestron T-Ring for Nikon Camera","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAttaches Nikon F-mount SLR\/DSLR cameras to telescopes\u003c\/li\u003e\n\u003cli\u003eEnables prime focus and eyepiece projection astrophotography\u003c\/li\u003e\n\u003cli\u003eStandard M42x0.75 female threads accept universal T-adapters\u003c\/li\u003e\n\u003cli\u003eDurable, all-metal construction ensures a secure connection\u003c\/li\u003e\n\u003cli\u003eReplaces the camera lens for direct optical train coupling\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 T-Ring for Nikon Camera\u003c\/h2\u003e\n\u003cp\u003eThe Celestron T-Ring for Nikon cameras is the fundamental accessory for connecting your DSLR or SLR camera body to a telescope, turning your high-powered optics into a massive telephoto lens. This simple, rugged ring replaces your standard camera lens and provides the universal T-threads needed to connect to a range of telescope-specific adapters. This connection is the first and most critical link in the chain for capturing high-resolution images of the Moon, planets, and deep-sky objects, all backed by a 2-year warranty.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe Essential First Step for Nikon Astrophotography\u003c\/h3\u003e\n\u003cp\u003eIf you own a Nikon camera, this T-Ring is the non-negotiable starting point for imaging through a telescope. It attaches directly to your camera's F-mount bayonet just like a lens, providing a secure, rigid platform. The interior of the ring features standard M42x0.75 threads, the universal interface for astronomy camera adapters.\u003c\/p\u003e\n\u003cp\u003eThis threaded connection prevents the flexure, vignetting, and potential light leaks that can occur with less secure, universal camera mounts. By creating a solid metal-on-metal link, the Celestron T-Ring ensures your camera sensor remains perfectly aligned with the telescope's focal plane, a critical requirement for sharp, focused astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eConnecting to SCTs, Refractors, and EdgeHD Systems\u003c\/h3\u003e\n\u003cp\u003eOnce the T-Ring is on your camera, you need a T-adapter to bridge the gap to your telescope's focuser or rear cell. The specific adapter depends entirely on your optical tube. Celestron offers dedicated adapters to ensure a perfect match and optimal image quality for various telescope designs.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor Schmidt-Cassegrain Telescopes:\u003c\/strong\u003e The #93633-A T-Adapter threads directly onto the standard rear cell of most SCTs, making it the ideal choice for prime focus lunar and planetary imaging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor Refractors \u0026amp; Spotting Scopes:\u003c\/strong\u003e The Universal T-Adapter (#93625) features a 1.25” barrel, allowing you to slide your camera into any standard 1.25\" focuser like an eyepiece.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor EdgeHD Optical Systems:\u003c\/strong\u003e To maintain the flat field of an EdgeHD, specific adapters are required. Use the #93644 for the 8-inch EdgeHD or the #93646 for the 9.25-inch, 11-inch, and 14-inch models.\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 do I need besides the Celestron Nikon T-Ring to start astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe T-Ring is the first piece. You will also need a \u003cstrong\u003eT-Adapter\u003c\/strong\u003e to connect the T-Ring to your specific telescope. The correct T-Adapter depends on your telescope's model (e.g., Schmidt-Cassegrain, Refractor, or EdgeHD).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I attach the Celestron T-Ring to my Nikon camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFirst, remove the lens from your Nikon camera body. Then, align the mounting indicator on the T-Ring with the one on your camera's body and twist it into place until it clicks, just as you would with a standard lens.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this T-Ring work with any Nikon camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis Celestron T-Ring is designed for Nikon SLR and DSLR cameras that use the Nikon F-mount. It is not compatible with Nikon's newer mirrorless Z-mount cameras, which require a different T-Ring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use my eyepieces with the Celestron Nikon T-Ring attached?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNot directly. This setup is for \"prime focus\" photography, where the telescope acts as the camera lens. To take pictures through an eyepiece (eyepiece projection), you would need an additional adapter, like a universal camera adapter that holds both the eyepiece and the camera.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat's the best way to use the Nikon T-Ring to photograph the Moon with my 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor an 8\" Schmidt-Cassegrain, you would pair this Nikon T-Ring with the Celestron #93633-A T-Adapter. The T-Adapter screws onto the rear cell of your SCT, and the T-Ring on your camera then screws onto the T-Adapter. This setup positions your camera sensor at the telescope's focal plane for a crisp, high-magnification shot of the entire lunar disc.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy telescope has a 1.25\" focuser. Which adapter do I need for my Celestron Nikon T-Ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor telescopes with a 1.25\" focuser, such as many refractors or smaller reflectors, you should use the Celestron Universal T-Adapter (#93625). Its 1.25\" barrel slides into the focuser, and your T-Ring\/camera assembly then threads onto the back of the adapter.\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\u003eCamera Compatibility\u003c\/td\u003e\n\u003ctd\u003eNikon F-mount (SLR\/DSLR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope-Side Thread\u003c\/td\u003e\n\u003ctd\u003eM42x0.75 (Female T-Thread)\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 T-Ring for Nikon Camera\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/93402-A_t-ring_nikon_1.jpg?v=1680556276\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eT-Ring for Nikon Camera\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\"\u003eCelestron Software \u0026amp; Drivers\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":44967182434589,"sku":"CEL-93402","price":24.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-T-Ring-for-Nikon-Camera-93402-1__48022.1594230503.1280.1280.jpg?v=1684338284"},{"product_id":"celestron-universal-1-25-t-adapter","title":"Celestron Universal 1.25\" T-Adapter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects DSLR and SLR cameras to telescopes\u003c\/li\u003e\n\u003cli\u003eFits standard 1.25\" focusers and eyepiece adapters\u003c\/li\u003e\n\u003cli\u003eRequires a brand-specific T-Ring (sold separately)\u003c\/li\u003e\n\u003cli\u003eEnables prime focus photography for lunar and terrestrial targets\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 Universal T-Adapter - 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe Celestron Universal T-Adapter is the fundamental link for prime focus astrophotography, connecting your DSLR or SLR camera body directly to any telescope equipped with a 1.25” focuser. This simple, rugged adapter allows your telescope to function as a massive telephoto lens for your camera, enabling direct imaging of the Moon, planets, and terrestrial subjects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003ePrime Focus Photography: Directly Couple Your DSLR to Your Telescope\u003c\/h3\u003e\n\u003cp\u003eThis adapter makes it possible to attach your camera's body directly to your telescope's optical path. The top of the Universal T-Adapter features standard T-threads that screw into a camera-specific T-Ring (sold separately), which then mounts to your camera's lens flange. The 1.25\" barrel slides securely into your telescope's focuser, just like a standard eyepiece, creating a rigid and reliable imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAchieving Focus: A Critical Note for Newtonian and Refractor Owners\u003c\/h3\u003e\n\u003cp\u003ePrime focus photography requires significant inward focuser travel. While many catadioptric telescopes (like Schmidt-Cassegrains) have ample range, many Newtonian reflectors and \"fast\" refractors may not have enough travel to bring the image to a sharp focus with this standard T-adapter. This is a limitation of the telescope's optical design, not the adapter itself.\u003c\/p\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 T-Adapter vs. Barlow T-Adapter: Which Do You Need?\u003c\/h3\u003e\n\u003cp\u003eIf you own a telescope with limited focus travel, the solution is not to abandon prime focus but to modify it. Celestron's Universal Barlow \u0026amp; T-Adapter (#93640) is designed for this exact scenario. It incorporates a 2x Barlow lens that extends the focal point outwards, allowing cameras to reach focus on virtually any telescope type.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChoose this Universal T-Adapter if:\u003c\/strong\u003e You have an SCT or Maksutov-Cassegrain, or have confirmed your refractor\/Newtonian has sufficient back-focus for prime focus imaging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChoose the Universal Barlow \u0026amp; T-Adapter if:\u003c\/strong\u003e You have a Newtonian or fast refractor and are unable to reach focus, or if you want to double the magnification for planetary imaging on any telescope.\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 do I need besides the Celestron Universal T-Adapter to connect my camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou will need a \u003cstrong\u003eT-Ring\u003c\/strong\u003e that matches your specific camera brand's lens mount (e.g., Canon EOS, Nikon F-mount, Sony E-mount). The T-Adapter has male T-threads, and the T-Ring has female T-threads on one side and the camera bayonet mount on the other. The T-Ring is sold separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy can't I reach focus with my Newtonian telescope using this T-Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eMost Newtonian reflectors are designed for visual use, where the focal plane is very close to the focuser tube. A DSLR camera sensor is recessed deep inside the camera body, and this T-adapter adds more length. This combined distance is often too long for the telescope's focuser to rack in far enough. For these telescopes, you will need the \u003ca href=\"https:\/\/davidastro.com\/products\/celestron-universal-barlow-and-t-adapter-1-25\"\u003eCelestron Universal Barlow \u0026amp; T-Adapter (#93640)\u003c\/a\u003e, which pushes the focal point outward.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Universal T-Adapter suitable for imaging deep-sky objects like the Orion Nebula (M42)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile you can take short-exposure images of bright deep-sky objects, prime focus photography with a DSLR is typically unguided. This limits you to very short exposures (often under 30 seconds) before star trails appear. For serious deep-sky imaging, a dedicated astronomy camera and an equatorial mount with autoguiding are recommended.\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\" T-Adapter to image the Moon with my 8\" SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is an ideal setup. An 8\" SCT has more than enough focus travel to accommodate the T-Adapter and a DSLR. The Moon is bright enough that you can use very short exposures and a low ISO, resulting in sharp, detailed images of its craters and maria.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter work with a mirrorless camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, as long as you purchase the correct T-Ring for your specific mirrorless camera mount (e.g., Sony E-mount, Canon RF, Nikon Z). The T-Adapter's T-threads are universal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Celestron Universal T-Adapter add any magnification?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This T-Adapter is a simple mechanical tube that connects your camera at the telescope's native focal length (prime focus). It does not contain any optics and does not alter the magnification or focal length of your telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Connection\u003c\/td\u003e\n\u003ctd\u003eT-Threads (M42x0.75)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Connection\u003c\/td\u003e\n\u003ctd\u003e1.25\" Barrel\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 Universal T-Adapter - 1.25\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/93625.jpg?v=1680132332\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eUniversal T-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\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Celestron_93626_2__Universal_Digital_Camera_Adapter_Manual.pdf?v=1782186981\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload T-Adapter Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/celestron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eCelestron 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":44967182467357,"sku":"CEL-93625","price":40.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Celestron-Universal-1-25-inch-T-Adapter-93625-1__19010.1594230504.1280.1280.jpg?v=1684338288"},{"product_id":"sky-watcher-canon-camera-adapter-m48","title":"Sky-Watcher Canon Camera Adapter (M48)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects Canon EOS DSLR\/Mirrorless cameras to Sky-Watcher reducers\u003c\/li\u003e\n\u003cli\u003eFeatures a wide M48 x 0.75 thread to prevent vignetting\u003c\/li\u003e\n\u003cli\u003eEngineered specifically for Sky-Watcher 0.85x Focal Reducer\/Correctors\u003c\/li\u003e\n\u003cli\u003eOptimized for Esprit and ProED series apochromatic refractors\u003c\/li\u003e\n\u003cli\u003eProvides a secure, direct-threaded connection 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\u003eSky-Watcher Canon M48 Camera Adapter\u003c\/h2\u003e\n\u003cp\u003eThis Sky-Watcher Canon M48 Camera Adapter is the essential link for attaching your Canon EOS DSLR or mirrorless camera to a Sky-Watcher 0.85x Focal Reducer\/Corrector. It utilizes the larger M48 thread format, ensuring the entire field of view from the corrector illuminates your camera's sensor without the vignetting often caused by standard, smaller T-rings. This adapter is the correct component for serious imaging with Sky-Watcher's Esprit and ProED series refractors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eM48 Thread for Full-Frame Illumination\u003c\/h3\u003e\n\u003cp\u003eThe key to this adapter is its M48 (48mm) diameter threading. Compared to the standard M42 T-thread, the wider M48 aperture passes a larger cone of light, which is critical for preventing darkened corners in your images, especially when using cameras with full-frame or large APS-C sensors. This ensures your flat frames can properly correct a clean, evenly illuminated field from edge to edge.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDesigned for Sky-Watcher 0.85x Reducers\u003c\/h3\u003e\n\u003cp\u003eThis is not a generic adapter; it is purpose-built to achieve the correct spacing and secure connection for Sky-Watcher's dedicated 0.85x focal reducer\/correctors. It provides a rigid, threaded attachment point that minimizes flexure and maintains perfect optical alignment between your camera and the telescope's corrector optics. This integration is vital for achieving sharp, round stars across the entire frame.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTarget Telescopes:\u003c\/strong\u003e Specifically designed for the optical correctors used with Sky-Watcher Esprit and ProED series apochromatic refractors.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncompatible Systems:\u003c\/strong\u003e This adapter is not suitable for use with Sky-Watcher's Collapsible Dobsonian line or any system requiring a standard M42 T-ring.\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between this Sky-Watcher M48 adapter and a standard Canon T-ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA standard T-ring uses an M42 x 0.75 thread. This \u003cstrong\u003eSky-Watcher M48 Adapter\u003c\/strong\u003e uses a larger M48 x 0.75 thread. The larger diameter of the M48 thread is designed to prevent vignetting (darkened corners) on cameras with larger sensors, like full-frame DSLRs, which is a common issue with the smaller M42 format.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this M48 adapter work with my Sky-Watcher Esprit 120ED and its dedicated reducer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. This adapter is specifically designed to connect a Canon EOS camera to the dedicated 0.85x focal reducer\/correctors that come with the Sky-Watcher Esprit and ProED series telescopes, including the Esprit 120ED. It will provide the correct threading and spacing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Sky-Watcher M48 adapter on my 8\" Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This adapter is not suitable for use on Sky-Watcher's Collapsible Dobsonian line. Those telescopes typically require different adapters for prime-focus photography and are not compatible with the focal reducers this adapter is designed for.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need an M48 adapter for my full-frame Canon camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA full-frame sensor (24mm x 36mm) is large enough that the light cone projected by a smaller M42 T-ring can be physically cut off at the corners, causing vignetting. The wider M48 aperture of this adapter ensures the entire sensor is fully illuminated by the corrected field of the telescope's reducer, leading to brighter, cleaner images.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this adapter add any magnification?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the adapter itself does not change the magnification. It is a mechanical part designed solely to connect your Canon camera body to the telescope's focal reducer at the correct distance. The focal reduction (0.85x) is provided by the reducer\/corrector optic, not the adapter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Sky-Watcher M48 adapter work with other brands of focal reducers?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt might thread on if the other reducer has a male M48 thread, but it is not guaranteed to produce a good result. This adapter is engineered to provide the specific back-focus distance required by Sky-Watcher's 0.85x reducers. Using it with other brands may result in incorrect spacing and poorly corrected images.\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\u003eCamera Mount\u003c\/td\u003e\n\u003ctd\u003eCanon EOS EF\/EF-S Bayonet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Side Thread\u003c\/td\u003e\n\u003ctd\u003eM48 x 0.75 Female\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Application\u003c\/td\u003e\n\u003ctd\u003eAstrophotography with DSLR\/Mirrorless Cameras\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Telescope Series\u003c\/td\u003e\n\u003ctd\u003eSky-Watcher Esprit and ProED (with dedicated 0.85x reducer\/corrector)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSky-Watcher M48 Camera Adapter for Canon\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967193379101,"sku":"SW-S20300","price":40.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Sky-Watcher-Canon-Camera-Adapter-M48-S20300-1__46895.1594170794.1280.1280.jpg?v=1684338545"},{"product_id":"sky-watcher-nikon-camera-adapter-m48","title":"Sky-Watcher Nikon Camera Adapter (M48)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects Nikon DSLR cameras to Sky-Watcher telescopes\u003c\/li\u003e\n\u003cli\u003eM48 thread size for wider illumination\u003c\/li\u003e\n\u003cli\u003eDesigned for 0.85x Focal Reducer\/Correctors\u003c\/li\u003e\n\u003cli\u003eOptimized for Esprit and ProED series refractors\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eSky-Watcher Nikon Camera Adapter (M48)\u003c\/h2\u003e\n\u003cp\u003eThis Sky-Watcher Nikon Camera Adapter (M48) creates a secure, wide-aperture connection between your Nikon DSLR camera and a Sky-Watcher 0.85x Focal Reducer\/Corrector. It is engineered specifically to leverage the larger M48 thread, providing a critical link for astrophotography with Esprit and ProED series 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\u003eM48 Thread for Full-Frame Illumination\u003c\/h3\u003e\n\u003cp\u003eUnlike standard M42 T-rings, this adapter uses the larger M48 (48mm) thread. This wider opening is essential for larger format imaging, as it minimizes vignetting—the dimming of corners in your image—by allowing the full light cone from the corrector to reach your camera's sensor. This ensures even illumination from edge to edge, which is especially critical for full-frame Nikon DSLRs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eOptimized for Esprit and ProED Refractors\u003c\/h3\u003e\n\u003cp\u003eThe M48 Nikon Adapter is designed for a precise fit with the dedicated field correctors used on Sky-Watcher's high-end refractor lines. You can achieve a rigid, threaded imaging train with your Esprit or ProED APO refractor, ensuring your camera is held securely and perfectly parallel to the focal plane. Please note, this adapter is not suitable for use with Sky-Watcher's Collapsible Dobsonian telescopes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between this M48 adapter and a standard Nikon T-Ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA standard T-Ring uses a smaller M42x0.75 thread, which can cause vignetting (darkened corners) on cameras with larger sensors, like full-frame DSLRs. This \u003cstrong\u003eSky-Watcher M48 Adapter\u003c\/strong\u003e has a wider 48mm opening to provide a more evenly illuminated field of view, which is critical when pairing your camera with a focal reducer or field flattener.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich Sky-Watcher telescopes is the M48 Nikon adapter designed for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically intended for use with Sky-Watcher's \u003cstrong\u003eEsprit and ProED series\u003c\/strong\u003e refractors when using their dedicated 0.85x Focal Reducer\/Correctors. It is not designed for and will not work with their Collapsible Dobsonian line or other telescopes that use a standard T-thread connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I connect my Nikon D850 to my Sky-Watcher Esprit 100ED telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo connect your Nikon D850, you would first thread the dedicated 0.85x Focal Reducer\/Corrector onto your Esprit 100ED's focuser. Then, you thread this Sky-Watcher M48 Nikon Adapter onto the back of the reducer\/corrector. Finally, you attach your Nikon D850 body (with the lens removed) to the bayonet mount on the adapter, just like attaching a lens.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy can't I use this M48 adapter on a Sky-Watcher Collapsible Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSky-Watcher's Collapsible Dobsonian telescopes are designed for visual use and have focusers that are typically compatible with standard 1.25\" or 2\" eyepieces and M42 T-thread adapters for prime-focus photography. They are not equipped with the M48 threaded correctors that this adapter is designed to mate with.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter maintain the correct back focus for my reducer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. This adapter is machined to provide the standard 55mm back focus distance required by most focal reducers and correctors when used with a DSLR camera. This ensures you can achieve a sharp, flat field without needing additional spacers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter work with a third-party M48 field flattener on my Sky-Watcher ProED 80?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, as long as the third-party field flattener has male M48x0.75 threads and requires a standard 55mm back focus distance for a DSLR camera, this Sky-Watcher M48 Nikon Adapter will work perfectly to connect your Nikon camera and achieve the correct spacing.\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\u003eCamera Mount\u003c\/td\u003e\n\u003ctd\u003eNikon F-Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Side Thread\u003c\/td\u003e\n\u003ctd\u003eM48 x 0.75 Female\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eSky-Watcher Esprit \u0026amp; ProED series with 0.85x Reducer\/Correctors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBack Focus Provided\u003c\/td\u003e\n\u003ctd\u003e55mm (Standard for DSLR)\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\"\u003eSky-Watcher Nikon Camera Adapter (M48)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/sky-watcher-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":44967193444637,"sku":"SW-S20301","price":40.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Sky-Watcher-Nikon-Camera-Adapter-M48-S20301-1__77191.1594170794.1280.1280.jpg?v=1684338547"},{"product_id":"explore-scientific-rack-and-pinion-focuser-1-extension-tube","title":"Explore Scientific Rack and Pinion Focuser 1\" Extension Tube","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdds 1 inch of focuser back travel\u003c\/li\u003e\n\u003cli\u003eDesigned for Explore Scientific 2-inch Rack \u0026amp; Pinion Focusers\u003c\/li\u003e\n\u003cli\u003eCompatible with Explore Scientific ED APO telescopes\u003c\/li\u003e\n\u003cli\u003ePrevents running out of focus travel with specific accessories\u003c\/li\u003e\n\u003cli\u003eMaintains a secure connection for eyepieces and cameras\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eExplore Scientific Rack and Pinion Focuser 1\" Extension Tube\u003c\/h2\u003e\n      \u003cp\u003eThe Explore Scientific Rack and Pinion Focuser 1\" Extension Tube provides the critical back focus needed to bring certain eyepieces and cameras to a sharp image. This tube is specifically designed to thread securely into the 2-inch Rack and Pinion focusers found on Explore Scientific's ED APO refractor telescopes, adding exactly 1 inch of outward travel.\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\u003eAchieve Focus: 1 Inch of Critical Focuser Extension\u003c\/h3\u003e\n      \u003cp\u003eCertain optical configurations, particularly when using specific flatteners, reducers, or long-focal-length eyepieces, require more outward focuser travel than the focuser alone can provide. This 1-inch extension tube solves that problem by physically moving your eyepiece or camera further from the telescope's focal plane, ensuring you can reach a perfect focus without running out of travel.\u003c\/p\u003e\n      \u003cp\u003eBy using a dedicated, threaded extension, you maintain a rigid and secure connection in your optical train. This avoids the potential for sag or tilt that can be introduced by using less secure, slip-fit style extensions, preserving the optical alignment of your system for sharp, round stars edge-to-edge.\u003c\/p\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 know if I need the Explore Scientific 1\" Focuser Extension Tube?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYou need this extension tube if you find yourself running out of outward focus travel with a specific eyepiece or camera. If you have racked your focuser all the way out and the image is still not sharp, this 1-inch tube will provide the additional distance required to achieve focus.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Explore Scientific extension tube fit focusers other than the 2-inch Rack and Pinion model?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, this extension tube is specifically threaded to match the Explore Scientific 2-inch Rack and Pinion focusers supplied with their ED APO series telescopes. It is not a generic extension and is unlikely to be compatible with focusers from other manufacturers.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes adding the Explore Scientific 1\" Extension Tube affect image quality?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, the tube itself is purely mechanical and has no optical elements. It simply moves your eyepiece or camera to the correct focal point. Because it is a rigid, threaded extension, it helps maintain the mechanical alignment of your imaging train, which is critical for good image quality.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this 1\" extension tube for imaging with my Explore Scientific ED APO telescope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAbsolutely. Astrophotography is a primary use case for this accessory. Many imaging setups that include a field flattener, off-axis guider, or filter wheel require a specific amount of back focus that this tube helps achieve, ensuring your camera sensor is positioned at the telescope's corrected focal plane.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between using this 1\" extension tube and a Barlow lens to reach focus?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eA Barlow lens is an optical device that multiplies the telescope's focal length and magnification, which also happens to move the focal point outward. The \u003cstrong\u003eExplore Scientific 1\" Extension Tube\u003c\/strong\u003e is a purely mechanical spacer; it provides the needed extension without changing the magnification or focal length of your telescope. If you need extension but want to maintain your telescope's native focal length, the extension tube is the correct tool.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI can't reach focus with a new eyepiece on my Explore Scientific ED102; is this 1\" extension tube the solution?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIt is very likely the solution. If your Explore Scientific ED102 has the stock 2-inch Rack and Pinion focuser and you cannot reach focus by racking all the way out, this 1-inch extension is designed precisely for this situation. It will give you the extra travel needed to bring that eyepiece into sharp focus.\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\u003eGTIN\u003c\/td\u003e\n\u003ctd\u003e812257015535\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\"\u003e1\" Focuser Extension Tube\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\/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":44967207960861,"sku":"ES-ESRPEXT1","price":41.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Explore-Scientific-Rack-and-Pinion-Focuser-1-inch-Extension-Tube-ESRPEXT1-ESRPEXT1-1__93274.1594240398.1280.1280.jpg?v=1684338919"},{"product_id":"explore-scientific-camera-ring-m48x0-75-for-canon-eos","title":"Explore Scientific Camera-Ring M48x0.75 for Canon EOS","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects Canon EOS cameras to M48x0.75 accessories\u003c\/li\u003e\n\u003cli\u003eOptimized for full-frame sensors to eliminate vignetting\u003c\/li\u003e\n\u003cli\u003eWider clear aperture than standard M42 T-rings\u003c\/li\u003e\n\u003cli\u003eLightweight, black-anodized aluminum construction\u003c\/li\u003e\n\u003cli\u003eReduces internal reflections for higher contrast images\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eExplore Scientific Camera-Ring M48x0.75 for Canon EOS\u003c\/h2\u003e\n\u003cp\u003eThe Explore Scientific Camera-Ring M48x0.75 for Canon EOS provides a full-frame-ready connection between your camera and telescope accessories. By using the larger M48x0.75 thread standard instead of a traditional T-ring, this adapter illuminates your entire sensor without the vignetting common with smaller M42 adapters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFull-Frame Illumination with the M48x0.75 Thread\u003c\/h3\u003e\n\u003cp\u003eConnect your Canon EOS DSLR or mirrorless camera to field flatteners, coma correctors, and filter wheels that use the M48x0.75 filter thread standard. This adapter provides a secure, direct bayonet connection designed specifically for the Canon EOS mount, ensuring perfect alignment in your imaging train.\u003c\/p\u003e\n\u003cp\u003eThe primary advantage of the M48 thread is its wider clear aperture compared to the older M42 T-thread. This spacious opening allows the full light cone from your optics to reach the corners of a full-frame sensor, preventing clipped illumination and dark corners in your final astrophotographs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eM48 vs. M42 T-Rings: Eliminating Full-Frame Vignetting\u003c\/h3\u003e\n\u003cp\u003eA standard M42 T-ring was designed when imaging sensors were much smaller. While adequate for APS-C sensors, its narrow opening can act as a bottleneck, physically blocking light from reaching the corners of a modern 35mm full-frame sensor.\u003c\/p\u003e\n\u003cp\u003eThe Explore Scientific M48 ring solves this problem. Its larger diameter ensures an unobstructed light path, preserving edge-to-edge brightness and making it an essential upgrade for any full-frame Canon EOS astrophotographer. The adapter is crafted from matte black anodized aluminum to minimize internal reflections and enhance image contrast.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need the Explore Scientific M48 Ring for my full-frame Canon EOS camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou need the \u003cstrong\u003eExplore Scientific M48 Ring\u003c\/strong\u003e to prevent vignetting (darkened corners) in your images. Standard M42 T-rings are too narrow for full-frame sensors and can block light. This M48 adapter provides a wider opening, ensuring your entire sensor is evenly illuminated.\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 M48 ring and a standard M42 T-ring for my Canon EOS?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe key difference is the thread diameter. This \u003cstrong\u003eM48 ring\u003c\/strong\u003e has a larger opening than a standard M42 T-ring. This wider aperture is critical for full-frame cameras, as it allows the entire light cone to pass through without being clipped, which is the primary cause of mechanical vignetting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Explore Scientific M48 Canon EOS Ring work with APS-C cameras?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the \u003cstrong\u003eExplore Scientific M48 Ring\u003c\/strong\u003e is fully compatible with Canon EOS cameras that have smaller APS-C sensors. While vignetting is less of an issue on APS-C, using M48 accessories ensures you have a future-proof setup if you ever upgrade to a full-frame camera body.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of telescope accessories can I connect with the Explore Scientific M48 Ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter allows you to connect your Canon EOS camera to any accessory with a male M48x0.75 thread. This includes many popular accessories designed for full-frame imaging, such as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eField Flatteners\u003c\/li\u003e\n\u003cli\u003eComa Correctors\u003c\/li\u003e\n\u003cli\u003eOff-Axis Guiders\u003c\/li\u003e\n\u003cli\u003eFilter Wheels and Drawers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm trying to image the Andromeda Galaxy (M31) with my full-frame Canon EOS R and a large refractor. Will this M48 ring help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. For a large target like the Andromeda Galaxy (M31) on a full-frame sensor, maximizing your illuminated field is crucial. Using the \u003cstrong\u003eExplore Scientific M48 Ring\u003c\/strong\u003e instead of an M42 ring will help ensure the faint outer arms of the galaxy are not lost in vignetted corners, giving you a cleaner, more evenly lit final image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIf I use this Explore Scientific M48 ring on my 8\" SCT with a reducer, will it prevent vignetting?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is a critical component for that setup. An 8\" SCT with a reducer produces a wide, fast light cone. The \u003cstrong\u003eExplore Scientific M48 Ring\u003c\/strong\u003e ensures that the connection to your Canon EOS camera is not the source of vignetting, allowing the reducer's fully corrected image circle to reach your sensor.\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\u003e4007922064130\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\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":44967208419613,"sku":"ES-510383","price":41.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Explore-Scientific-Camera-Ring-M48x0-75-for-Canon-EOS-510383-1__56405.1594240399.1280.1280.jpg?v=1684338930"},{"product_id":"explore-scientific-camera-ring-m48x0-75-for-nikon","title":"Explore Scientific Camera-Ring M48x0.75 for Nikon","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects Nikon F-mount DSLR cameras to M48x0.75 threaded accessories\u003c\/li\u003e\n\u003cli\u003e41.2mm clear inner diameter minimizes vignetting on full-frame sensors\u003c\/li\u003e\n\u003cli\u003eAdds a precise 8.0mm of optical path length to your imaging train\u003c\/li\u003e\n\u003cli\u003eConstructed from matte black anodized aluminum for durability\u003c\/li\u003e\n\u003cli\u003eWeighs only 30 grams to reduce load on your focuser\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 Camera-Ring M48x0.75 for Nikon\u003c\/h2\u003e\n\u003cp\u003eThe Explore Scientific Camera-Ring for Nikon adapts your DSLR to the modern astrophotography standard with its M48x0.75 female thread and a wide 41.2mm inner diameter. This design eliminates the vignetting common with older M42 T-rings on full-frame sensors, while contributing a precise 8.0mm to your back focus distance in a lightweight 30-gram body.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eM48 Threading: A 41.2mm Aperture for Full-Frame Sensors\u003c\/h3\u003e\n\u003cp\u003eThis adapter ring is built around the M48x0.75 thread, the preferred standard for connecting full-frame cameras to field flatteners, reducers, and coma correctors. Its generous 41.2mm clear internal aperture allows the full light cone to pass unobstructed to your sensor, ensuring your images are brightly illuminated from corner to corner without the tell-tale dimming or clipping that plagues smaller adapters.\u003c\/p\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 Spacing: An 8.0mm Light Path in a 30g Body\u003c\/h3\u003e\n\u003cp\u003eAchieving the correct distance between your corrector and sensor is critical for sharp stars across the field. This adapter adds exactly 8.0mm of optical path length, a standard figure that simplifies back focus calculations. Machined from matte black anodized aluminum, the ring weighs only 30 grams, adding minimal mass and flexure to your imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eM48 vs. M42 T-Rings: Why the Larger Thread Matters for Imaging\u003c\/h3\u003e\n\u003cp\u003eWhile the classic M42 T-ring was sufficient for APS-C and smaller sensors, it acts as a bottleneck for modern full-frame DSLRs. The physical opening of an M42 adapter is too small, causing it to cut off light at the edges of a 35mm sensor, resulting in vignetting.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eM42 (T-Thread):\u003c\/strong\u003e Limited clear aperture often vignettes full-frame sensors, requiring aggressive flat-field correction and cropping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eM48 (2-inch Filter Thread):\u003c\/strong\u003e The larger diameter provides a completely unvignetted field for full-frame sensors, preserving image data and quality across the entire frame.\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 benefit of the Explore Scientific M48 ring over a standard M42 T-ring for my Nikon?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary benefit is the prevention of vignetting on full-frame cameras. The \u003cstrong\u003eM48x0.75 thread\u003c\/strong\u003e and wide \u003cstrong\u003e41.2mm internal diameter\u003c\/strong\u003e provide a much larger light path than a standard M42 T-ring, ensuring the corners of your full-frame sensor are fully illuminated.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this M48 ring work with my Nikon D850 or other full-frame DSLR?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. This adapter is designed with a standard Nikon F-mount bayonet and is specifically intended for full-frame Nikon DSLRs like the D810, D850, and D750 to leverage their large sensors without vignetting. It is also fully compatible with Nikon APS-C (DX-format) cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 8.0mm light path of this ring affect my back focus calculation?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou must include this \u003cstrong\u003e8.0mm\u003c\/strong\u003e in your total back focus distance. For example, if your field flattener requires 55mm of back focus, this adapter provides 8.0mm of that distance. You would then need an additional 47mm of extension tubes to achieve perfect spacing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I thread 2\" filters into this Explore Scientific Nikon M48 ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter has female M48 threads designed to attach to a telescope's field flattener or corrector. To use filters, you would typically place them in a filter drawer or wheel, or thread them onto the nosepiece that goes into your focuser, ahead of this adapter in the optical path.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 41.2mm inner diameter of this adapter large enough for an f\/4 imaging Newtonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the \u003cstrong\u003e41.2mm clear aperture\u003c\/strong\u003e is designed to handle the steep light cones from fast optical systems. When paired with a proper M48-threaded coma corrector, this ring will prevent the adapter itself from being the cause of vignetting, even on fast telescopes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat material is the Explore Scientific M48 Camera-Ring made from?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter is made from lightweight and durable \u003cstrong\u003ematte black anodized aluminum\u003c\/strong\u003e. The anodizing process increases surface hardness and corrosion resistance, while the matte black finish minimizes internal reflections that could reduce image contrast.\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\u003e4007922064185\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Camera Mount\u003c\/td\u003e\n\u003ctd\u003eNikon F-mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapter Thread\u003c\/td\u003e\n\u003ctd\u003eM48x0.75 (Female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter\u003c\/td\u003e\n\u003ctd\u003e41.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Path Length\u003c\/td\u003e\n\u003ctd\u003e8.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eMatte Black Anodized Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e30 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eExplore Scientific Camera-Ring M48x0.75 for Nikon\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":44967208452381,"sku":"ES-510384","price":41.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Explore-Scientific-Camera-Ring-M48x0-75-for-Nikon-510384-1__71465.1594240399.1280.1280.jpg?v=1684338935"},{"product_id":"explore-scientific-rack-and-pinion-focuser-2-5-extension-tube","title":"Explore Scientific Rack and Pinion Focuser 2.5\" Extension Tube","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e1.5Adds 1.5 inches of extension\u003c\/li\u003e\n\u003cli\u003eDesigned for Explore Scientific 2.5-inch Hexagonal Focusers\u003c\/li\u003e\n\u003cli\u003eMaintains rigidity of the optical train\u003c\/li\u003e\n\u003cli\u003eEnables focus with DSLRs, filter wheels, and other accessories\u003c\/li\u003e\n\u003cli\u003ePrecision-machined for a secure fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eExplore Scientific Rack and Pinion Focuser 2.5\" Extension Tube\u003c\/h2\u003e\n\u003cp\u003eThe Explore Scientific Rack and Pinion Focuser 2.5\" Extension Tube provides a crucial 2-inch increase in back focus, enabling your telescope to achieve a sharp image with cameras and accessories that require significant outward travel. This component is specifically engineered to integrate with the Explore Scientific 2.5-inch hexagonal focuser, preserving the stability of your imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAdd 1.5 Inches of Critical Back Focus\u003c\/h3\u003e\n\u003cp\u003eWhen you add a DSLR, a filter wheel, or an off-axis guider to your telescope, the focal plane is pushed outwards. This 2-inch extension tube provides the necessary distance to compensate, ensuring you can reach a sharp focus without running out of focuser travel. It's an essential component for astrophotography setups that require more back focus than the stock focuser allows.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDesigned for the Explore Scientific 2.5-inch Hex Focuser\u003c\/h3\u003e\n\u003cp\u003eThis extension is not a generic part; it's made to match the robust design of the Explore Scientific 2.5-inch hexagonal rack and pinion focuser. The hexagonal shape is a key feature of the focuser, providing superior rigidity and preventing flexure under load. This extension tube maintains that design integrity, ensuring your camera and other heavy accessories are held securely without tilt or sag.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the Explore Scientific 2.5\" Focuser Extension Tube?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis tube adds 1.5\u003cstrong\u003e inches of outward travel\u003c\/strong\u003e to your focuser. It's designed for situations where your camera or accessory combination (like a DSLR with a T-ring, or a CCD with a filter wheel) requires more back focus than your telescope's focuser can provide on its own.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich focusers is this 2.5\" Extension Tube compatible with?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt is specifically designed for the \u003cstrong\u003eExplore Scientific 2.5-inch hexagonal rack and pinion focuser\u003c\/strong\u003e. It is machined to seamlessly thread onto this focuser body, maintaining the system's rigidity and alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhen would I need to add a 1.25-inch extension to my Explore Scientific focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou would need this extension if you cannot achieve focus because your focuser is racked all the way out. This is a common scenario when imaging the Moon with a DSLR through an Explore Scientific ED series refractor, or when using an accessory stack with a long light path.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this 2.5\" extension tube introduce flexure into my imaging train?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile any extension can potentially introduce flexure, this tube is engineered to minimize it. By matching the \u003cstrong\u003e2.5-inch hexagonal design\u003c\/strong\u003e of the Explore Scientific focuser, it provides a more rigid and stable connection than a standard round extension tube would, helping to prevent tilt even with heavier cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install the Explore Scientific 2.5\" Focuser Extension Tube?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation is straightforward. You typically unthread the 1.5-inch eyepiece holder from your focuser drawtube, thread the 2.5-inch extension tube in its place, and then reattach your eyepiece holder or camera adapter to the end of the extension tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this extension tube to reach focus with a field flattener on my Explore Scientific apo refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is a primary use case. Field flatteners and reducers have specific back focus requirements (e.g., 55mm from the sensor). This 2-inch (50.8mm) extension tube provides the bulk of the required distance, allowing you to use fine-tuning spacers to hit the precise back focus for a perfectly flat 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\u003eGTIN\u003c\/td\u003e\n\u003ctd\u003e811803032944\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\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/explore-scientific-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eExplore Scientific Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":44967208517917,"sku":"ES-ESHEXEXT2","price":62.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Explore-Scientific-Rack-and-Pinion-Focuser-2-5-inch-Extension-Tube-ESHEXEXT2-ESHEXEXT2-1__43043.1594240400.1280.1280.jpg?v=1684339073"},{"product_id":"explore-scientific-rack-and-pinion-focuser-2-extension-tube","title":"Explore Scientific Rack and Pinion Focuser 2\" Extension Tube","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdds Critical Outward Focuser Travel\u003c\/li\u003e\n\u003cli\u003e2-inch Barrel Diameter\u003c\/li\u003e\n\u003cli\u003eDesigned for Explore Scientific ED APO Telescopes\u003c\/li\u003e\n\u003cli\u003eCompatible with 2-inch Rack and Pinion Focusers\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 Rack and Pinion Focuser 2\" Extension Tube\u003c\/h2\u003e\n\u003cp\u003eThe Explore Scientific Rack and Pinion Focuser 2\" Extension Tube provides the critical outward travel needed to achieve focus on Explore Scientific ED APO telescopes using a 2-inch rack and pinion focuser, especially when using accessories with long back-focus requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAchieve Critical Focus with Explore Scientific 2\" Focusers\u003c\/h3\u003e\n\u003cp\u003eCertain eyepieces, cameras, or accessories in your optical train can shift the focal plane beyond the reach of your telescope's standard focuser travel. This 2-inch extension tube solves that problem by physically moving your accessory outward, ensuring you have the range needed to achieve a sharp, stable focus without compromise.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDSLR and Astro-Camera Imaging:\u003c\/strong\u003e Provides the necessary spacing to bring camera sensors to the focal plane, a common requirement for prime-focus astrophotography.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialized Eyepieces:\u003c\/strong\u003e Allows long focal length eyepieces or those with complex optical designs that require more \"out-travel\" to be used effectively.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRigid Connection:\u003c\/strong\u003e Engineered specifically for Explore Scientific focusers to maintain a secure, non-flexing connection, preserving optical alignment even with heavier 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\"\u003eWhy do I need the Explore Scientific 2\" Extension Tube for my ED APO telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou need this extension tube if you cannot reach focus because your focuser is racked all the way out. This often happens when using accessories like DSLR cameras, some flatteners or reducers, or certain long focal length eyepieces that require the focal plane to be further away from the telescope tube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Explore Scientific 2\" Extension Tube work with focusers from other brands?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis extension tube is specifically designed for the \u003cstrong\u003e2-inch rack and pinion focusers\u003c\/strong\u003e found on Explore Scientific ED APO telescopes. While it may physically fit other 2-inch focusers, a perfect mechanical and optical match is only guaranteed with the intended Explore Scientific models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I reach focus with my DSLR camera on an Explore Scientific ED127 using this 2\" extension tube?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is a primary use case. A DSLR camera's sensor is recessed deep within the camera body, requiring significant out-travel from the focuser. The Explore Scientific 2\" Extension Tube provides the necessary spacing to bring the ED127's focal plane to your DSLR sensor for prime-focus imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI'm using a 2-inch diagonal and a long focal length eyepiece on my Explore Scientific refractor and can't reach focus. Will this tube help?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. Some combinations of diagonals and long eyepieces consume less light path than the telescope was designed for, requiring the eyepiece to be positioned further out. This extension tube will bridge that gap, allowing you to achieve a sharp focus with your low-power, wide-field eyepiece setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Explore Scientific 2\" Extension Tube attach to the focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe extension tube inserts directly into the 2-inch drawtube of your Explore Scientific focuser, just like an eyepiece or diagonal. You then insert your accessory into the other end of the extension tube and secure both using the focuser's and the tube's compression rings or set screws.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes adding the Explore Scientific 2\" Extension Tube affect image quality?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the tube itself contains no optics and is simply a spacer. As long as it is securely fastened and your optical train is properly aligned, it will not degrade image quality. It is designed to be a rigid, passive component in your imaging setup.\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\u003e812257015542\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 2\" Focuser Extension Tube\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":44967208550685,"sku":"ES-ESRPEXT2","price":55.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Explore-Scientific-Rack-and-Pinion-Focuser-2-inch-Extension-Tube-ESRPEXT2-ESRPEXT2-1__61746.1594240400.1280.1280.jpg?v=1684339077"},{"product_id":"explore-scientific-2-t2-camera-adapter","title":"Explore Scientific 2\" T2 Camera Adapter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects DSLR cameras to any 2-inch telescope focuser\u003c\/li\u003e\n\u003cli\u003eStandard male T2-thread (M42x0.75) for camera-specific T-rings\u003c\/li\u003e\n\u003cli\u003eEnables direct prime-focus astrophotography\u003c\/li\u003e\n\u003cli\u003e2-inch (50mm) barrel maximizes light throughput to the sensor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eExplore Scientific 2\" T2 Camera Adapter\u003c\/h2\u003e\n\u003cp\u003eThe Explore Scientific 2\" T2 Camera Adapter provides the essential link between your DSLR or mirrorless camera and any telescope equipped with a 2-inch (50mm) focuser. Its standard T2 male thread connects directly to your camera-specific T-ring, creating a secure, rigid imaging train for prime focus astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eA Secure 2\" Connection for Prime Focus Astrophotography\u003c\/h3\u003e\n\u003cp\u003eThis adapter allows you to use your telescope as a high-power telephoto lens for your camera. By seating the 2-inch barrel firmly in your focuser and attaching your camera via a T-ring (sold separately), you place the camera's sensor directly at the telescope's focal plane. This direct, all-metal connection is far more stable and optically pure than holding a camera up to an eyepiece, eliminating vignetting and flexure for sharper, cleaner images.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e2\" vs. 1.25\" T-Adapter: Why the Larger Barrel Matters\u003c\/h3\u003e\n\u003cp\u003eWhile 1.25\" T-adapters exist, the Explore Scientific 2\" T2 adapter is critical for imagers using cameras with APS-C or full-frame sensors. The wider 2-inch barrel provides an unobstructed light path from the telescope to the sensor, preventing the vignetting or corner illumination drop-off that smaller adapters can cause. If your telescope has a 2-inch focuser, this adapter ensures you can take full advantage of your camera's entire sensor area.\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 else do I need to connect my camera with the Explore Scientific 2\" T2 Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou will need a \u003cstrong\u003eT-Ring\u003c\/strong\u003e that is specific to your camera's lens mount (e.g., Canon EOS, Nikon F-mount, Sony E-mount). The T-ring attaches to your camera body, and this T2 adapter then threads onto the T-ring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Explore Scientific 2\" T2 Adapter work with my 8\" Schmidt-Cassegrain telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, provided your SCT is equipped with a 2-inch visual back or an upgraded 2-inch focuser. This adapter slides directly into any standard 2-inch receptacle, making it compatible with a wide range of SCTs, refractors, and reflectors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this 2\" T2 adapter cause vignetting with a full-frame DSLR?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically designed to minimize vignetting with larger sensors. Its 2-inch barrel provides a much wider light path than a 1.25\" adapter, making it the preferred choice for illuminating the entire area of full-frame and APS-C sensors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I attach the Explore Scientific 2\" T2 adapter to my camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFirst, remove the lens from your camera and attach the appropriate T-ring to the camera's bayonet mount. Next, screw the Explore Scientific T2 adapter's male threads into the female threads on the T-ring until it is snug. The entire assembly then inserts into your telescope's 2-inch focuser like an eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter suitable for imaging the Orion Nebula (M42) with a wide-field refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The 2-inch barrel is ideal for wide-field imaging, ensuring the light cone from your refractor fully illuminates the camera sensor. This prevents darkened corners and is critical for capturing large, sprawling targets like the Orion Nebula (M42) or Andromeda Galaxy (M31) in a single frame.\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 T-adapter and a Barlow lens?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA T-adapter is a non-optical mechanical part used to connect your camera at the telescope's native focal length (known as 'prime focus'). A Barlow lens is an optical device containing lenses that you place between the focuser and the T-adapter to increase the telescope's effective focal length, thereby increasing magnification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e2\" (50mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Connection\u003c\/td\u003e\n\u003ctd\u003eMale T2-Thread (M42x0.75)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Connection\u003c\/td\u003e\n\u003ctd\u003e2\" Nosepiece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGTIN\u003c\/td\u003e\n\u003ctd\u003e4007922006444\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 2\" T2 Camera Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\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":44967208648989,"sku":"ES-510365","price":97.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Explore-Scientific-50mm-2-inch-T2-Camera-Adapter-510365-510365-1__82074.1594240401.1280.1280.jpg?v=1684339082"},{"product_id":"explore-scientific-m48x0-75-adapter-for-fffr","title":"Explore Scientific M48x0.75  Adapter for FFFR","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M48 (2-inch filter thread) accessories to the Explore Scientific 3\" 0.7x Reducer\u003c\/li\u003e\n\u003cli\u003eReplaces the standard M42 T-thread adapter included with the reducer\u003c\/li\u003e\n\u003cli\u003eWider aperture reduces vignetting with full-frame and large APS-C sensors\u003c\/li\u003e\n\u003cli\u003eLightweight design at only 0.15 lb (0.08 kg)\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 M48x0.75 Adapter for FFFR\u003c\/h2\u003e\n\u003cp\u003eThe Explore Scientific M48x0.75 Adapter is the essential upgrade for the 3-inch 0.7x Field Flattener\/Focal Reducer, replacing the stock M42x0.75 adapter to provide a wider light path for large-sensor cameras. Weighing only 0.15 lb (0.08 kg), this component ensures a secure, threaded connection without adding significant mass to your imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eUpgrade to M48 Threads for the 3-inch 0.7x Reducer\u003c\/h3\u003e\n\u003cp\u003eThis adapter is specifically designed to replace the M42 T-thread adapter that comes standard with the Explore Scientific 3-inch 0.7x Reducer\/Flattener. By swapping to this M48x0.75 version, you can directly connect accessories like filter wheels, off-axis guiders, and camera rotator that use the larger 2-inch filter thread standard for a more robust and less restrictive imaging connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eM48 vs. M42: Reducing Vignetting on Larger Sensors\u003c\/h3\u003e\n\u003cp\u003eThe primary advantage of M48 threads over the standard M42 T-thread is its larger clear aperture. This wider opening minimizes vignetting—the darkening of corners in an image—which becomes a significant issue when using cameras with full-frame or large APS-C sensors. While the stock M42 adapter is sufficient for smaller sensors, this M48 adapter is the definitive solution for imagers looking to illuminate the largest possible field with their Explore Scientific reducer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich Explore Scientific reducer is the M48x0.75 Adapter compatible with?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed exclusively for the \u003cstrong\u003eExplore Scientific 3-inch Field Flattener\/0.7x Focal Reducer\u003c\/strong\u003e. It is a direct replacement for the M42 adapter that ships with that specific reducer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy should I upgrade the Explore Scientific reducer to this M48 adapter from the standard M42?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou should upgrade to the M48 adapter if you are using a camera with a large sensor (APS-C or full-frame). The wider \u003cstrong\u003eM48 aperture provides a less restricted light path\u003c\/strong\u003e, which helps to reduce or eliminate vignetting at the corners of your images compared to the standard M42 T-thread adapter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Explore Scientific M48 adapter eliminate all vignetting on my full-frame camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile the Explore Scientific M48 adapter significantly reduces vignetting by removing the bottleneck of the M42 thread, achieving a perfectly flat field often requires calibration frames like flats. However, it provides the widest possible unvignetted light path from the reducer itself, giving you the best starting point for large-sensor imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install the Explore Scientific M48x0.75 Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation is straightforward. Simply unthread the standard M42 adapter that came with your Explore Scientific 3-inch 0.7x Reducer\/Flattener and thread the new M48x0.75 Adapter in its place. The connection is entirely threaded, requiring no tools.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I still attach my 2-inch filters with this M48 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter provides M48 female threads on the camera side. To use 2-inch filters (which typically have M48 male threads), you would place them in a filter wheel or filter drawer that sits between this adapter and your camera sensor.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this M48 adapter necessary for my camera with an APS-C sensor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor smaller APS-C sensors, the standard M42 adapter may be sufficient. However, for larger APS-C sensors, especially those in modern mirrorless cameras, upgrading to the M48 adapter is highly recommended to maximize illumination across the entire sensor and minimize vignetting.\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\u003eThreads\u003c\/td\u003e\n\u003ctd\u003eM48x0.75\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eExplore Scientific 3-inch Field Flattener\/0.7x Focal Reducer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.15 lb \/ 0.08 kg\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\"\u003eM48x0.75 Adapter for FFFR\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\u003cp\u003eThis product does not have a software or manual download.\u003c\/p\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":44967208780061,"sku":"ES-M48-0750.7x","price":51.79,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Explore-Scientific-M48x0-75-Adapter-for-FFFR-M48-0750-7x-1__43775.1594240403.1280.1280.jpg?v=1684339100"},{"product_id":"explore-scientific-2-adapter-for-fffr507x-00","title":"Explore Scientific 2\" Adapter for FFFR507X-00","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts the 3\" 0.7x Reducer (FFFR507X-00) to fit 2\" focusers\u003c\/li\u003e\n\u003cli\u003eEnables use of premium optics on a wider range of telescopes\u003c\/li\u003e\n\u003cli\u003eSecure, precision-machined connection\u003c\/li\u003e\n\u003cli\u003eMaintains optical alignment between focuser and reducer\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 2\" Adapter for FFFR507X-00\u003c\/h2\u003e\n\u003cp\u003eThis essential adapter connects the Explore Scientific 3-inch 0.7x Field Flattener Focal Reducer (FFFR507X-00) to any standard 2-inch focuser, expanding its compatibility to a much wider range of optical tubes. It allows you to leverage the advanced optical correction of a premium 3-inch accessory on telescopes equipped with a more common 2-inch drawtube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBridge Your 3\" Reducer to a 2\" Focuser\u003c\/h3\u003e\n\u003cp\u003eThe Explore Scientific FFFR507X-00 0.7x reducer is designed to provide a large, flat, and corrected field for serious astrophotography, but its native 3-inch format limits its use to telescopes with large focusers. This 2\" adapter solves that problem directly, providing a secure, threaded connection that steps the reducer down to the 2-inch format. Now you can use your high-end reducer on more portable refractors or secondary imaging scopes without compromising the mechanical connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the Explore Scientific 2\" Adapter for FFFR507X-00?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter allows you to physically attach the \u003cstrong\u003eExplore Scientific 3-inch 0.7X Field Flattener Focal Reducer (model FFFR507X-00)\u003c\/strong\u003e to a telescope's \u003cstrong\u003e2-inch focuser\u003c\/strong\u003e. It bridges the size difference, enabling the use of this specific 3-inch accessory on telescopes that do not have a 3-inch drawtube.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI want to image the Andromeda Galaxy (M31) with my ES102 refractor which has a 2\" focuser. Is this adapter the right solution to use my FFFR507X-00 reducer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is precisely the correct accessory for that scenario. The \u003cstrong\u003eExplore Scientific 2\" Adapter\u003c\/strong\u003e will allow you to connect your FFFR507X-00 reducer to your refractor's 2-inch focuser, reducing its focal length for a wider field of view that is ideal for large targets like the Andromeda Galaxy (M31).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill using the Explore Scientific 2\" Adapter cause vignetting with my full-frame camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003ePotentially, yes. While the FFFR507X-00 reducer is designed to illuminate a large image circle, stepping it down to a 2-inch barrel creates a new physical bottleneck. With very large sensors (like full-frame), the 2-inch barrel itself may cause some light fall-off, or vignetting, at the corners of the frame. This is an expected trade-off for adapting a 3-inch accessory to a 2-inch format and can typically be corrected with flat frames during image processing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter compatible with focal reducers from other brands?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically designed for the threading and backfocus requirements of the \u003cstrong\u003eExplore Scientific FFFR507X-00 3-inch 0.7x Reducer\u003c\/strong\u003e. It is not guaranteed to work with reducers from other manufacturers, which may use different thread specifications or have different spacing requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this adapter attach to the FFFR507X-00 reducer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter features precision threads that screw directly and securely onto the body of the FFFR507X-00 focal reducer. The other end is a standard 2-inch barrel that slides into your telescope's focuser and is secured by the focuser's compression ring or thumbscrews.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need the Explore Scientific 2\" Adapter if my telescope already has a 3\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. If your telescope is already equipped with a 3-inch focuser, you can connect the FFFR507X-00 reducer directly without this adapter. This adapter is only for telescopes that have a 2-inch focuser.\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\u003e4007922000855\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eExplore Scientific 3\" 0.7x Field Flattener Focal Reducer (FFFR507X-00)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Connection\u003c\/td\u003e\n\u003ctd\u003e2\" Focuser\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 2\" Adapter for FFFR507X-00\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":44967208812829,"sku":"ES-510364","price":139.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Explore-Scientific-2-inch-Adapter-for-FFFR507X-00-510364-1__51598.1594240404.1280.1280.jpg?v=1684339102"},{"product_id":"explore-scientific-adapter-for-fffr507x-00-to-2-5-hex-focuser","title":"Explore Scientific Adapter for FFFR507X-00 to 2.5\" Hex Focuser","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eDedicated Compatibility:\u003c\/strong\u003e Connects the Explore Scientific 3\" 0.7x Reducer\/Corrector (FFFR507X-00) to any telescope using the 2.5\" Hex Focuser.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImaging Enhancement:\u003c\/strong\u003e Unlocks the wider, faster f-ratio imaging capabilities of the 0.7x corrector for telescopes not equipped with a native 3\" focuser.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Connection:\u003c\/strong\u003e Precision-machined to provide a rigid, flex-free link between your focuser and the heavy-duty corrector, maintaining optical alignment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEssential Component:\u003c\/strong\u003e The specific, proprietary adapter required to mate these two Explore Scientific components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eExplore Scientific Adapter for FFFR507X-00 to 2.5\" Hex Focuser\u003c\/h2\u003e\n\u003cp\u003eThis Explore Scientific Adapter provides the essential mechanical link to connect the 3\" 0.7x Field Flattener\/Reducer Corrector (model FFFR507X-00) to telescopes equipped with the popular 2.5\" Hex Focuser. This robust, single-piece adapter bridges the format gap, allowing you to take full advantage of the corrector's wide, flat field and focal reduction on a broader range of Explore Scientific 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\u003eBridge Your 2.5\" Hex Focuser to the 3\" 0.7x Corrector\u003c\/h3\u003e\n\u003cp\u003eMany Explore Scientific telescopes feature the excellent 2.5\" Hex Focuser, but to achieve the widest, most corrected astrophotography fields, the 3\" 0.7x corrector is the ideal accessory. This adapter provides the precise threading and spacing required to mount the larger corrector securely onto the 2.5\" focuser drawtube, ensuring a rigid, non-flexing connection critical for sharp, round stars across the entire frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of this Explore Scientific Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter allows you to attach the Explore Scientific \u003cstrong\u003e3\" 0.7x Reducer\/Corrector (FFFR507X-00)\u003c\/strong\u003e to an Explore Scientific telescope that has a \u003cstrong\u003e2.5\" Hex Focuser\u003c\/strong\u003e. It converts the threading and diameter to create a secure mechanical connection between these two parts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich Explore Scientific telescopes require this adapter to use the 3\" 0.7x corrector?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAny Explore Scientific telescope equipped with the 2.5\" Hex Focuser will require this adapter to use the FFFR507X-00 corrector. This includes many models in the ED APO Triplet Refractor series, such as the ED80, ED102, and ED127, that were shipped with the 2.5\" focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter cause vignetting when imaging M31 with a full-frame DSLR on an ES127?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed to facilitate the optical path of the FFFR507X-00 corrector, which itself is engineered for large sensors. While any optical train can have some illumination fall-off, this adapter is not the limiting factor. The corrector itself is the primary determinant of the usable image circle, and when properly spaced, it should provide good coverage for full-frame sensors with only minor, flat-frame-correctable vignetting at the extreme corners.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install this adapter on my 2.5\" Hex Focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation is straightforward. You typically unthread the standard 2\" eyepiece holder from the end of the 2.5\" focuser drawtube. This adapter then threads directly onto the exposed male threads of the drawtube, providing the correct female threads to accept the FFFR507X-00 corrector.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this adapter change the back focus of the FFFR507X-00 corrector?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is purely a mechanical converter. The required back focus distance for the FFFR507X-00 corrector (measured from the corrector's rear flange to the camera sensor) remains the same. This adapter simply allows you to achieve that connection on a 2.5\" focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this adapter to connect other 3\" accessories to my 2.5\" Hex Focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically designed for the Explore Scientific FFFR507X-00 3\" 0.7x Corrector. While it may physically thread onto other accessories with the same thread pattern, proper spacing and optical compatibility are not guaranteed. It is only certified for its intended purpose.\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\u003e812257018871\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\"\u003eAdapter for FFFR507X-00 to 2.5\" Hex Focuser\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/explore-scientific-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eExplore Scientific Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":44967208845597,"sku":"ES-510366","price":139.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Explore-Scientific-Adapter-for-FFFR507X-00-to-2-5-inch-Hex-Focuser-510366-510366-1__43905.1594240405.1280.1280.jpg?v=1684339118"},{"product_id":"qhyccd-m42m-canon-10mm-adapter","title":"QHYCCD M42(M) Canon 10mm Adapter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects Canon EF Lenses to M42 Female Threads\u003c\/li\u003e\n\u003cli\u003eProvides a Fixed 10mm Optical Path Length\u003c\/li\u003e\n\u003cli\u003eM42x0.75 Male \"T-Thread\" Interface\u003c\/li\u003e\n\u003cli\u003eEnables Wide-Field Imaging with Photographic Lenses\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\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\u003eQHYCCD M42(M) Canon 10mm Adapter\u003c\/h2\u003e\n\u003cp\u003eThe QHYCCD M42(M) Canon 10mm Adapter connects Canon EF-mount lenses to any camera or accessory with a female M42x0.75 thread. This adapter provides exactly 10mm of optical path length, which is critical for achieving correct back focus with specific QHYCCD cameras and filter wheel combinations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAdapt Canon EF Lenses with a Precise 10mm M42 Connection\u003c\/h3\u003e\n\u003cp\u003eThis adapter allows you to repurpose high-quality Canon EF-mount photographic lenses for astrophotography with your QHYCCD camera. By providing a standard male M42x0.75 \"T-thread\" interface, it opens up wide-field imaging possibilities, from capturing the full expanse of the Andromeda Galaxy (M31) to sweeping vistas of the Milky Way.\u003c\/p\u003e\n\u003cp\u003eThe core function of this adapter is to establish a precise 10mm spacing in the optical path. This fixed distance is an essential component for building imaging trains that achieve correct back focus, ensuring sharp stars across the entire field when combined with specific QHYCCD cameras and accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the QHYCCD M42(M) Canon 10mm Adapter used for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt connects a \u003cstrong\u003eCanon EF-mount lens\u003c\/strong\u003e to a camera or accessory with female \u003cstrong\u003eM42 T-threads\u003c\/strong\u003e, adding exactly \u003cstrong\u003e10mm\u003c\/strong\u003e to the optical path. This is ideal for using photographic lenses for wide-field astrophotography with cooled astronomy cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow would I use the QHYCCD 10mm adapter to image the Rho Ophiuchi cloud complex?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor a wide target like the Rho Ophiuchi region, you would attach a fast Canon EF lens (e.g., a 135mm or 200mm lens) to this adapter. The adapter then threads onto your QHYCCD camera, letting you use the lens's wide field of view to capture the entire nebula complex. The fixed \u003cstrong\u003e10mm spacing\u003c\/strong\u003e is a key part of the calculation for achieving sharp focus from edge to edge.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the QHYCCD M42 Canon adapter support electronic aperture or autofocus?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This is a purely mechanical adapter. It provides a secure physical connection and precise spacing but does not have electronic contacts to transmit data. Focus and aperture must be set manually on the lens itself.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the \"10mm\" in the QHYCCD M42 Canon Adapter's name refer to?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \"10mm\" specifies the optical path length, or thickness, of the adapter. When inserted into your imaging train, it increases the distance between the lens and the camera sensor by exactly 10mm, a critical value for back focus calculations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this QHYCCD adapter with a filter wheel?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this adapter is designed to be used as part of an imaging train that may include a filter wheel. You would typically place it between the Canon lens and the filter wheel, ensuring the total back focus distance matches your camera's requirement. You must account for the \u003cstrong\u003e10mm path length\u003c\/strong\u003e of this adapter when calculating your total spacing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the QHYCCD M42 adapter compatible with Canon EF-S lenses?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed for the Canon EF mount. While EF-S lenses can physically attach to an EF mount, their rear elements often protrude further back. This could potentially interfere with filters or the camera's optical window. It is recommended for use with full-frame compatible \u003cstrong\u003eEF lenses\u003c\/strong\u003e to ensure clearance.\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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/qhyccd-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eQHYCCD Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"QHYCCD","offers":[{"title":"Default Title","offer_id":44967211532573,"sku":"QHY-020072","price":49.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/QHY-Adapters-Canon_Lens_Adapter-020071_600px__18358.1560934073.1280.1280__84725.1642535653.1280.1280.jpg?v=1684339207"},{"product_id":"william-optics-flat4-draw-tube-adapter-for-gt102-flt-132-black-for-3-v-power-focuser","title":"William Optics Flat4 Draw Tube Adapter for GT102, FLT 132 - Black for 3\" V-Power Focuser","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects William Optics Flat4 Flattener to Draw Tube\u003c\/li\u003e\n\u003cli\u003eDesigned for the 3\" V-Power Focuser\u003c\/li\u003e\n\u003cli\u003eCompatible with GT102 \u0026amp; FLT 132 (2017 Models)\u003c\/li\u003e\n\u003cli\u003eEnsures a Secure, Threaded Imaging Train\u003c\/li\u003e\n\u003cli\u003eColor: Black\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 Flat4 Draw Tube Adapter for GT102, FLT 132 - Black for 3\" V-Power Focuser\u003c\/h2\u003e\n\u003cp\u003eThis William Optics Flat4 Draw Tube Adapter provides the essential mechanical link for attaching your Flat4 flattener to the 3\" V-Power focuser on Gran Turismo 102 and FLT 132 refractors from the 2017 model year.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDedicated Adapter for Flat4 on 3\" V-Power Focusers\u003c\/h3\u003e\n\u003cp\u003eAchieve a rigid, secure connection for your astrophotography setup. This adapter is purpose-built to join the William Optics Flat4 field flattener directly to the draw tube of specific telescopes, eliminating potential flexure or misalignment that can occur with generic solutions.\u003c\/p\u003e\n\u003cp\u003eEngineered exclusively for the 2017 model year William Optics GT102 and FLT 132 refractors equipped with the 3\" V-Power focuser, this component ensures correct spacing and a stable imaging train. Using the correct, manufacturer-specified adapter is critical for capturing sharp, round stars across your entire field of 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\"\u003eWhich telescopes is the WO-AD4-A006-L00BL03 adapter compatible with?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically designed for the \u003cstrong\u003eWilliam Optics Gran Turismo 102\u003c\/strong\u003e and \u003cstrong\u003eFLT 132\u003c\/strong\u003e refractors from the \u003cstrong\u003e2017 model year\u003c\/strong\u003e that are equipped with the \u003cstrong\u003e3\" V-Power focuser\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of this William Optics Draw Tube Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts sole purpose is to securely connect a William Optics \u003cstrong\u003eFlat4 field flattener\u003c\/strong\u003e to the draw tube of a compatible telescope. This creates a rigid, threaded connection essential for astrophotography, preventing tilt and maintaining optical alignment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter work with newer William Optics telescopes or different focusers?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, it is not guaranteed to work with models other than the specified 2017 GT102 and FLT 132 with the 3\" V-Power focuser. William Optics produces different adapters for various telescope and focuser combinations to ensure correct mechanical fit and optical spacing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Number\u003c\/td\u003e\n\u003ctd\u003eWO-AD4-A006-L00BL03\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eDraw Tube Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Compatibility\u003c\/td\u003e\n\u003ctd\u003eWilliam Optics GT102, FLT 132 (2017 Models)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser Compatibility\u003c\/td\u003e\n\u003ctd\u003e3\" V-Power Focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessory Compatibility\u003c\/td\u003e\n\u003ctd\u003eWilliam Optics Flat4 Field Flattener\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eBlack\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 Flat4 Draw Tube 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":"Default Title","offer_id":44967234404637,"sku":"WO-AD4-A006-L00BL03","price":88.0,"currency_code":"CAD","in_stock":true}]},{"product_id":"william-optics-flat4-draw-tube-adapter-for-gt102-flt-132-blue-for-3-v-power-focuser","title":"William Optics Flat4 Draw Tube Adapter for GT102, FLT 132 - Blue for 3\" V-power Focuser","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects Flat4 Flattener to 3\" V-Power Focuser\u003c\/li\u003e\n\u003cli\u003eCompatible with William Optics GT102 \u0026amp; FLT 132\u003c\/li\u003e\n\u003cli\u003eEngineered for 2017 Telescope Models\u003c\/li\u003e\n\u003cli\u003eSecure Threaded Attachment for Imaging\u003c\/li\u003e\n\u003cli\u003eAnodized Blue Finish\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 Flat4 Draw Tube Adapter for GT102, FLT 132 - Blue for 3\" V-power Focuser\u003c\/h2\u003e\n\u003cp\u003eThis William Optics adapter provides the essential threaded connection between a Flat4 field flattener and the 3\" V-Power focuser drawtube. It is specifically engineered for the 2017 models of the William Optics Gran Turismo 102 and FLT 132 refractors, ensuring a perfect mechanical and cosmetic match.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eDirect-Thread Connection for the 3\" V-Power Focuser\u003c\/h3\u003e\n\u003cp\u003eFor astrophotography, a rigid imaging train is critical to prevent tilt and flexure. This adapter replaces standard compression fittings, creating a solid, direct-thread attachment from your Flat4 flattener to the telescope's 3\" V-Power focuser. This secure link is the foundation for achieving sharp, round stars across your entire image frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAnodized Blue Finish for 2017 GT102 \u0026amp; FLT 132 Models\u003c\/h3\u003e\n\u003cp\u003eDesigned as an original equipment manufacturer (OEM) component, this adapter is purpose-built for specific William Optics telescopes. The anodized blue finish is formulated to exactly match the livery of the 2017 versions of the GT102 and FLT 132 refractors. If you own one of these models, this is the correct adapter to integrate your Flat4 flattener seamlessly.\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 Flat4 adapter fit my William Optics GT102 from 2018?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this specific adapter (WO-AD4-A006-L00BU03) is designed for the \u003cstrong\u003e2017 models\u003c\/strong\u003e of the GT102 and FLT 132 with the 3\" V-Power focuser. Later models may use a different thread pitch or focuser design, requiring a different adapter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich focuser is this William Optics adapter compatible with?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is made exclusively for the William Optics \u003cstrong\u003e3\" V-Power focuser\u003c\/strong\u003e that was supplied with the 2017 GT102 and FLT 132 telescopes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat field flattener does the WO-AD4-A006-L00BU03 connect to?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis is a draw tube adapter designed to connect a William Optics \u003cstrong\u003eFlat4 series\u003c\/strong\u003e field flattener or flattener\/reducer to the telescope's focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need this adapter to image with my FLT 132?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo ensure a rigid, flex-free imaging train. Using this threaded adapter eliminates the potential for sag or tilt that can occur with slip-fit or compression ring-style adapters, which is critical for maintaining a flat field and sharp focus during long exposures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this Flat4 adapter compatible with a William Optics GT81?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is not compatible with the GT81. It is designed only for the \u003cstrong\u003eWilliam Optics GT102 and FLT 132 (2017 models)\u003c\/strong\u003e. The GT81 requires a different adapter due to its different focuser and optical design.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the color of this adapter a match for current William Optics telescopes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter features an anodized \u003cstrong\u003eblue finish\u003c\/strong\u003e intended to match the specific color scheme of the 2017 model year telescopes. It may not be a perfect cosmetic match for newer or older models with different colorways (e.g., red, gold, or space gray).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eWilliam Optics GT102 \u0026amp; FLT 132 (2017 Models)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser Compatibility\u003c\/td\u003e\n\u003ctd\u003e3\" V-Power Focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlattener Compatibility\u003c\/td\u003e\n\u003ctd\u003eWilliam Optics Flat4 Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eBlue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eWO-AD4-A006-L00BU03\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":44967234502941,"sku":"WO-AD4-A006-L00BU03","price":88.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-Flat4-Draw-Tube-Adapter-for-GT102-FLT-132-Blue-for-3-inch-V-power-Focuser-AD4-A006-L00BU03-1__25851.1596133287.1280.1280.jpg?v=1684339257"},{"product_id":"william-optics-flat4-draw-tube-adapter-for-flt-gold-for-2007-2016-models","title":"William Optics Flat4 Draw Tube Adapter for FLT (Gold) for 2007-2016 Models","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eSecurely connects the Flat4 Field Flattener to the draw tube\u003c\/li\u003e\n\u003cli\u003eDesigned for William Optics FLT 98, 110, 132, and 152 models\u003c\/li\u003e\n\u003cli\u003eCompatible with telescopes manufactured between 2007 and 2016\u003c\/li\u003e\n\u003cli\u003eMachined aluminum construction\u003c\/li\u003e\n\u003cli\u003eAnodized gold finish to match original telescope trim\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 Flat4 Draw Tube Adapter for FLT (Gold)\u003c\/h2\u003e\n\u003cp\u003eThis William Optics Flat4 Draw Tube Adapter provides the essential mechanical link for attaching a Flat4 series field flattener to specific William Optics FLT refractors. It is engineered for FLT models including the 98, 110, 132, and 152, specifically for telescopes produced between 2007 and 2016. The adapter ensures a secure, threaded connection directly to the focuser's draw tube, establishing the correct spacing and alignment for a flat imaging field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eFor FLT 98, 110, 132 \u0026amp; 152 Telescopes (2007-2016)\u003c\/h3\u003e\n\u003cp\u003eThis adapter is a required component for imagers using older-generation William Optics FLT quadruplet refractors who wish to use the compatible Flat4 flattener. Its threading and dimensions are precisely matched to the focusers on FLT models manufactured from 2007 to 2016, including the FLT98, FLT110, FLT132, and FLT152. The anodized gold finish is designed to cosmetically match the original trim and accents of these classic William Optics telescopes.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecific Compatibility:\u003c\/strong\u003e This part is not universal. It is designed only for the specified FLT models and years; it will not work with other William Optics telescopes or focusers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImaging Requirement:\u003c\/strong\u003e Without this adapter, you cannot properly connect the Flat4 flattener to the telescope's draw tube, making it impossible to achieve a corrected field for astrophotography.\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 purpose of the William Optics WO-AD4-A006-L00GD03 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is a specialized mechanical part that allows you to securely thread a \u003cstrong\u003eWilliam Optics Flat4 field flattener\u003c\/strong\u003e onto the focuser draw tube of specific FLT telescopes (models 98, 110, 132, and 152) made between 2007 and 2016. It is required for astrophotography with that combination of equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Flat4 adapter fit my 2010 William Optics FLT110?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. This adapter is specified for all William Optics FLT 98, 110, 132, and 152 models manufactured from \u003cstrong\u003e2007 through 2016\u003c\/strong\u003e, so your 2010 model is fully compatible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter compatible with newer William Optics telescopes made after 2016?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This adapter is designed specifically for the focuser thread pattern and dimensions of the 2007-2016 generation of FLT telescopes. Newer models use different focuser designs and require different adapters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install this Flat4 adapter on my FLT132?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation typically involves unthreading the standard 2\" visual back or eyepiece holder from the end of your FLT132's focuser draw tube. This adapter then threads directly onto the exposed male threads of the draw tube, providing the correct connection for your Flat4 flattener.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the gold color of this adapter match the original telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the gold anodized finish was intentionally chosen to match the distinctive gold trim and lens cell accents found on the William Optics FLT series telescopes from that manufacturing period.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this adapter to connect a different brand of flattener to my FLT98?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis is not recommended. The adapter is designed to provide the correct threading and spacing for the William Optics Flat4 flattener. Using it with another flattener will likely result in incorrect spacing, leading to poor off-axis star shapes and other imaging artifacts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Name\u003c\/td\u003e\n\u003ctd\u003eWilliam Optics Flat4 Draw Tube Adapter for FLT (Gold)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eWO-AD4-A006-L00GD03\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eAnodized Gold\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Compatibility\u003c\/td\u003e\n\u003ctd\u003eWilliam Optics FLT 98, FLT 110, FLT 132, FLT 152\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Year Compatibility\u003c\/td\u003e\n\u003ctd\u003e2007 - 2016\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlattener Compatibility\u003c\/td\u003e\n\u003ctd\u003eWilliam Optics Flat4 Series\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 Flat4 Draw Tube Adapter for FLT (Gold)\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\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eNo downloads available for this product.\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":44967237091613,"sku":"WO-AD4-A006-L00GD03","price":88.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-Flat4-Draw-Tube-Adapter-for-FLT-Gold-for-2007-2016-Models-AD4-A006-L00GD03-1__03709.1596133287.1280.1280.jpg?v=1684339579"},{"product_id":"william-optics-4-extension-tube-for-flt-series","title":"William Optics 4\" Extension Tube for FLT Series","description":"\u003cul\u003e\n    \u003cli\u003e\n        4\" extension tube designed for William Optics FLT Series\n    \u003c\/li\u003e\n    \u003cli\u003e\n        Provides additional back focus for various optical setups\n    \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\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n    \u003cli class=\"active\"\u003e\n        \u003cp\u003e\n            The William Optics 4\" Extension Tube for FLT Series is a precision-engineered accessory designed to provide additional back focus for your William Optics FLT telescopes. This extension tube is essential for achieving the correct focus when using various imaging accessories, ensuring optimal performance and flexibility in your astrophotography setup.\n        \u003c\/p\u003e\n        \u003cdiv class=\"warning\"\u003e\n            \u003cimg alt=\"Disclaimer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/warning-logo.svg?v=1714663206\" width=\"25px\"\u003e\n            \u003cp\u003e\n                Telescopes and accessories sold separately.\n            \u003c\/p\u003e\n        \u003c\/div\u003e\n        \n        \u003cdiv\u003e\n            \u003ch3\u003e\n                Features\n            \u003c\/h3\u003e\n            \u003chr\u003e\n            \u003cdiv class=\"two-columns-section\"\u003e\n                \u003cdiv class=\"text-side-2\"\u003e\n                    \u003cp\u003e\n                        Specifically designed for use with William Optics FLT Series telescopes, ensuring compatibility and a secure fit.\n                    \u003c\/p\u003e\n                    \u003cp\u003e\n                        Provides an additional 4 inches of back focus, allowing for the integration of various optical accessories such as cameras, focal reducers, and filters.\n                    \u003c\/p\u003e\n                \u003c\/div\u003e\n                \u003cdiv class=\"image-side-2\" style=\"text-align: start;\"\u003e\n                    \u003cimg alt=\"William Optics 4\\\" extension tube for flt series src=\"https:\/\/davidastro.com\/cdn\/shop\/products\/William-Optics-4-inch-Extension-Tube-for-FLT-Series-P-EXFLT-2__44358.1596133295.1280.1280_832x832.jpg?v=1684339595\"\u003e\n                \u003c\/div\u003e\n            \u003c\/div\u003e\n\n            \u003cdiv style=\"background-color: #0a0001; border-radius: 5px;\"\u003e\n                \u003ch3 style=\"color: white!important;\"\u003e\n                    High-Quality Construction\n                \u003c\/h3\u003e\n                \u003chr\u003e\n                \u003cdiv class=\"two-columns-section\"\u003e\n                    \u003cdiv class=\"image-side-2\" style=\"text-align: start;\"\u003e\n                        \u003cimg alt=\"William Optics 4\\\" extension tube for flt series src=\"https:\/\/davidastro.com\/cdn\/shop\/products\/William-Optics-4-inch-Extension-Tube-for-FLT-Series-P-EXFLT-1__16520.1596133295.1280.1280_832x832.jpg?v=1684339595\"\u003e\n                    \u003c\/div\u003e\n                    \u003cdiv class=\"text-side-2\"\u003e\n                        \u003cp style=\"color: white!important;\"\u003e\n                            Made from durable materials to ensure longevity and reliable performance in various astrophotography setups.\n                        \u003c\/p\u003e\n                    \u003c\/div\u003e\n                \u003c\/div\u003e\n            \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003ch3\u003e\n            Ease of Use\n        \u003c\/h3\u003e\n        \u003chr\u003e\n        \u003cp\u003e\n            Simple to attach and detach, making it a user-friendly addition to your astrophotography equipment.\n        \u003c\/p\u003e\n\n    \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967237746973,"sku":"WO-P-EXFLT","price":92.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-4-inch-Extension-Tube-for-FLT-Series-P-EXFLT-1__16520.1596133295.1280.1280.jpg?v=1684339595"},{"product_id":"william-optics-m63m-to-m48m-photo-adapter","title":"William Optics M63(M) to M48(M) Photo Adapter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdds 80mm of Optical Length\u003c\/li\u003e\n\u003cli\u003eConnects to M63 Female Threads\u003c\/li\u003e\n\u003cli\u003eOutputs to M48 Male T-Threads\u003c\/li\u003e\n\u003cli\u003eEnables Focus Without a Field Flattener\u003c\/li\u003e\n\u003cli\u003eDesigned for William Optics Doublet \u0026amp; Triplet Refractors\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 M63(M) to M48(M) Photo Adapter\u003c\/h2\u003e\n\u003cp\u003eThe William Optics M63 to M48 Photo Adapter provides a precise 80 mm of optical length, creating the correct spacing to achieve focus when imaging without a field flattener. This adapter features M63 female threads on the telescope side and standard M48 male threads on the camera side, making it an essential component for direct-to-camera imaging with many William Optics doublet and triplet refractors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe 80mm Solution for Flattener-Free Imaging\u003c\/h3\u003e\n\u003cp\u003eWhen you remove a field flattener from your imaging train, the focal plane of your telescope shifts significantly inward. This adapter compensates by adding exactly 80 mm of extension, pushing your camera sensor back to the new point of sharp focus. It's the ideal solution for visual-first observers who want to attach a camera for planetary work or casual deep-sky imaging without reinvesting in a full corrective setup.\u003c\/p\u003e\n\u003cp\u003eThe trade-off is straightforward: you achieve focus, but without the edge-of-field correction a flattener provides. For imagers using cameras with smaller sensors or those targeting central objects like Jupiter or the Ring Nebula (M57), this is often an acceptable compromise to get a camera attached and working.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eM63 Female to M48 Male: Direct Camera Connection\u003c\/h3\u003e\n\u003cp\u003eThis adapter is engineered for a specific, secure fit. The M63 female threads on the light-in side are designed to screw onto focusers or accessories that terminate in a male M63 thread. The light-out side provides a standard M48x0.75 male thread, the universal standard for connecting to DSLR\/mirrorless T-rings and dedicated astronomy cameras.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTelescope Side Connection:\u003c\/strong\u003e M63 Female Thread (screws onto an M63 male thread).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCamera Side Connection:\u003c\/strong\u003e M48 Male Thread (screws into a female T-ring or camera nosepiece).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuild:\u003c\/strong\u003e Machined from black-anodized aluminum to minimize internal reflections and maintain a rigid connection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy do I need the 80mm William Optics Photo Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou need this adapter specifically when you want to do photography \u003cstrong\u003ewithout a field flattener or reducer\u003c\/strong\u003e in the optical path. Removing those components changes the focus point, and this 80 mm extension tube provides the exact distance required to bring a camera sensor to the new focal plane on many William Optics doublet and triplet refractors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich telescopes is the WO-P-PAM-63-48 adapter designed for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed specifically for William Optics doublet and triplet refractors that use an M63 thread on their focuser assembly. It is not a universal part; its 80 mm length is calculated to match the optical requirements of these specific telescopes when a flattener is removed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of camera can I attach with this M63 to M48 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter terminates in a standard \u003cstrong\u003eM48 male thread\u003c\/strong\u003e (also known as a \"wide T-mount\"). This allows you to connect any camera that can be fitted with a female M48 T-ring, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDSLR and mirrorless cameras (with the appropriate M48 T-ring for your camera brand).\u003c\/li\u003e\n\u003cli\u003eMost dedicated CMOS and CCD astronomy cameras.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the William Optics Photo Adapter correct for field curvature?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, it does not. This is purely a mechanical extension tube. Its sole purpose is to add 80 mm of length to achieve focus. It contains no optics and will not flatten the field of view. You will see star distortion at the edges of the field, especially with larger camera sensors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install the William Optics M63 to M48 adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe adapter's \u003cstrong\u003eM63 female threads\u003c\/strong\u003e screw directly onto the corresponding M63 male thread on your telescope's focuser drawtube or visual back. You then thread your M48 T-ring and camera onto the adapter's M48 male threads.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 80mm length of the WO-P-PAM-63-48 adapter adjustable?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, it is a fixed-length adapter. The 80 mm optical length is a precise value required to achieve focus on specific William Optics telescopes when their flatteners are removed. It is not designed for general-purpose use where variable spacing is needed.\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\u003eLight-In Side\u003c\/td\u003e\n\u003ctd\u003eM63 (female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight-Out Side\u003c\/td\u003e\n\u003ctd\u003eM48 (male)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e80 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics M63 to M48 Photo Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eNo downloads available for this product.\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":44967237878045,"sku":"WO-P-PAM-63-48","price":92.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-M63-Male-to-M48-Male-Photo-Adapter-P-PAM63-48-1__24722.1596133296.1280.1280.jpg?v=1684339318"},{"product_id":"william-optics-stl-adapter-for-flt-flattener","title":"William Optics STL Adapter for FLT Flattener","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects SBIG STL-11000 Series CCD Cameras\u003c\/li\u003e\n\u003cli\u003eAttaches to P-FLAT68 Field Flatteners via M80 Female Thread\u003c\/li\u003e\n\u003cli\u003eProvides a Precise 69 mm Optical Path Length\u003c\/li\u003e\n\u003cli\u003eSolid, Single-Piece Machined Construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics STL Adapter for FLT Flattener\u003c\/h2\u003e\n\u003cp\u003eThe William Optics STL Adapter for FLT Flattener provides a dedicated, secure connection between your SBIG STL-11000 series camera and a William Optics P-FLAT68 field flattener. This precision-machined component establishes the exact 69 mm optical length required for optimal performance, connecting to the flattener via its female M80 threads.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eRigid Connection and 69mm Spacing for the P-FLAT68 Flattener\u003c\/h3\u003e\n\u003cp\u003eThis adapter is engineered to solve the specific connection and spacing challenge of pairing the P-FLAT68 field flattener with large-format SBIG STL cameras. The female M80 threads ensure a direct, rigid attachment to the flattener body, eliminating the potential for image-degrading flexure that can occur with stacked generic adapters.\u003c\/p\u003e\n\u003cp\u003eAchieving correct back focus is critical for a perfectly flat field, and this adapter delivers the required 69 mm of optical length in a single, solid component. This guarantees that the distance from the flattener's final lens element to your STL-11000's sensor plane is precisely set for sharp, pinpoint stars from corner to corner.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the primary function of the William Optics STL Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed specifically to connect an \u003cstrong\u003eSBIG STL-11000 series CCD camera\u003c\/strong\u003e to a \u003cstrong\u003eWilliam Optics P-FLAT68 field flattener\u003c\/strong\u003e. It serves two critical roles: providing a secure mechanical connection and establishing the precise \u003cstrong\u003e69 mm optical spacing\u003c\/strong\u003e required for optimal flat-field correction.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the WO-P-STL adapter compatible with other flatteners or cameras?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this is a dedicated adapter. It is engineered with \u003cstrong\u003eM80 female threads\u003c\/strong\u003e specifically for the P-FLAT68 flattener and the unique flange mount of the SBIG STL-11000 camera. Using it with other components is not recommended as it will likely result in an incorrect back focus distance and an inability to physically connect.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a William Optics FLT refractor and a P-FLAT68 flattener. Is this the right adapter for my SBIG STL-11000 camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is the exact component you need for that setup. The WO-P-STL adapter bridges the M80 thread on the P-FLAT68 flattener to the SBIG STL camera body and sets the critical \u003cstrong\u003e69 mm back focus distance\u003c\/strong\u003e required by that specific optical combination.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is the 69 mm optical length of the WO-P-STL adapter so important?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eField flatteners like the P-FLAT68 must be placed at a very specific distance from the camera sensor to function correctly. The \u003cstrong\u003e69 mm optical length\u003c\/strong\u003e of this adapter is the prescribed spacing needed to ensure stars are sharp across the entire large sensor of an STL-11000, effectively correcting for the field curvature introduced by the telescope's main optics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I image large targets like the Andromeda Galaxy (M31) with the WO-P-STL adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. By correctly connecting your P-FLAT68 flattener to your STL-11000 camera with this adapter, you will achieve the flat field necessary to capture large deep-sky objects like the \u003cstrong\u003eAndromeda Galaxy (M31)\u003c\/strong\u003e or the \u003cstrong\u003eNorth American Nebula (NGC 7000)\u003c\/strong\u003e without distorted stars at the edges of your frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy can't I just use generic M80 adapters to create 69 mm of spacing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile theoretically possible, stacking multiple generic adapters introduces several threaded junctions, which are potential sources of tilt and flexure. This single, solid adapter provides a much more rigid and reliable connection, which is critical to maintaining optical alignment when imaging with a heavy camera like the \u003cstrong\u003eSBIG STL-11000\u003c\/strong\u003e.\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-P-STL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Side Connection\u003c\/td\u003e\n\u003ctd\u003eSBIG STL-11000 CCD Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Side Connection\u003c\/td\u003e\n\u003ctd\u003eM80 (female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e69 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics STL Adapter for FLT Flattener\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":44967237910813,"sku":"WO-P-STL","price":190.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-STL-1100-Adapter-for-FLT-FF-P-STL-1__84013.1596133296.1280.1280.jpg?v=1684339321"},{"product_id":"william-optics-48mm-t-mount-for-nikon-f","title":"William Optics 48mm T-Mount for Nikon F","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M48 Accessories to Nikon F-Mount Cameras\u003c\/li\u003e\n\u003cli\u003ePrecisely machined 8.2 mm optical length achieves exact 55mm back focus when combined with camera\u003c\/li\u003e\n\u003cli\u003eFemale M48 x 0.75 Threads (Telescope Side)\u003c\/li\u003e\n\u003cli\u003eMale Nikon F-Mount Bayonet (Camera Side)\u003c\/li\u003e\n\u003cli\u003eWide 48mm Aperture Prevents Vignetting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eWilliam Optics 48mm T-Mount for Nikon F\u003c\/h2\u003e\n\u003cp\u003eThe William Optics 48mm T-Mount for Nikon F provides a secure, direct connection from any M48 x 0.75 threaded accessory to a Nikon F-mount camera body. Consuming exactly 8.2 mm of optical path, it works seamlessly with your DSLR camera to achieve the standard 55 mm back focus for flat-field astrophotography.\u003c\/p\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 Spacing: Built for Standard 55mm Back Focus\u003c\/h3\u003e\n\u003cp\u003eAchieving the standard 55mm back focus distance required by most field flatteners and reducers demands exact component spacing. This William Optics T-Mount is engineered with an optical length of 8.2 mm, which combines directly with a Nikon F-mount DSLR's 46.5 mm flange distance to yield the required 55 mm total back focus (8.2 mm + 46.5 mm = 54.7 mm ~ 55 mm)—no additional spacers needed.\u003c\/p\u003e\n\u003cp\u003eBy delivering the exact 55 mm optical path out of the box when attached to your camera, this adapter removes guesswork and eliminates potential spacing errors that can introduce field curvature or other aberrations.\u003c\/p\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 Connection for Full-Frame Sensors: M48 Threading\u003c\/h3\u003e\n\u003cp\u003eThe adapter features female M48 x 0.75 threads on the telescope side, providing a wider and more robust connection than standard M42 T-rings. This larger diameter is essential for fully illuminating full-frame sensors without vignetting, ensuring the entire field receives even light from your corrector.\u003c\/p\u003e\n\u003cp\u003eA secure threaded connection prevents any flexure or tilt that can occur with less rigid adapters, preserving the precise optical alignment needed for sharp stars corner-to-corner. This rigidity is especially important when supporting the weight of a DSLR camera throughout a long imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the William Optics 48mm Nikon F T-Mount to achieve 55mm of back focus?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis T-mount provides \u003cstrong\u003e8.2 mm\u003c\/strong\u003e of optical length. A standard Nikon F-mount DSLR has a flange-to-sensor distance of 46.5 mm. When combined, the total optical path is 8.2 mm + 46.5 mm = \u003cstrong\u003e54.7 mm (~55 mm)\u003c\/strong\u003e. This delivers the required 55mm standard back focus directly from your corrector without requiring additional spacers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy should I choose this M48 T-Mount over a standard M42 T-ring for my full-frame Nikon D850?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe larger \u003cstrong\u003eM48 (48mm)\u003c\/strong\u003e opening is critical for preventing vignetting on full-frame sensors like the one in the Nikon D850. A smaller M42 T-ring can act as an aperture stop, physically blocking light and darkening the corners of your images. This M48 adapter ensures your full-frame sensor is completely illuminated.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this T-Mount to connect my Nikon D5600 to a William Optics RedCat 51?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. The RedCat 51 has a native M48 thread on the back. This T-mount will connect directly to the telescope, allowing you to securely attach your Nikon D5600 (which uses the F-mount) at the correct 55mm back focus distance directly without any additional spacers or adapters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this William Optics M48 T-Mount work with my Nikon Z-series mirrorless camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is designed specifically for the \u003cstrong\u003eNikon F-mount\u003c\/strong\u003e used on Nikon DSLR cameras. To connect an M48 thread to a Z-series camera, you would need a dedicated Nikon Z-mount T-adapter, or you could use this adapter in conjunction with a Nikon FTZ adapter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this William Optics T-mount have threads for 2\" filters?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this T-mount does not have internal threads for mounting filters inside it. Filters must be placed elsewhere in the optical train, such as in a dedicated filter drawer, filter wheel, or threaded onto the flattener\/corrector itself.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the thread pitch of the M48 connection on this T-Mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe M48 threads use the standard astronomical pitch of \u003cstrong\u003e0.75mm (M48x0.75)\u003c\/strong\u003e. This ensures compatibility with the vast majority of field flatteners, reducers, and other imaging accessories from William Optics and other manufacturers.\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\u003eTelescope Side Connection\u003c\/td\u003e\n\u003ctd\u003eM48 x 0.75 (Female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Side Connection\u003c\/td\u003e\n\u003ctd\u003eNikon F-Mount Bayonet (Male)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e8.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics 48mm T-Mount for Nikon F\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\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":44967238009117,"sku":"WO-TM-NK-F-M48","price":54.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-48mm-T-Mount-for-Nikon-F-TM-NK-F-M48-1__88595.1596133297.1280.1280.jpg?v=1684339325"},{"product_id":"william-optics-m48-female-to-m42-male-adapter","title":"William Optics M48 Female to M42 Male Adapter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M48 Female Threads to M42 Male Threads\u003c\/li\u003e\n\u003cli\u003eAdds Only 5.3mm of Optical Path Length\u003c\/li\u003e\n\u003cli\u003eStandard 2\" Filter Thread (M48x0.75) to T-Thread (M42x0.75) Conversion\u003c\/li\u003e\n\u003cli\u003eMachined for a Rigid, Tilt-Free Connection\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 M48 Female to M42 Male Adapter\u003c\/h2\u003e\n\u003cp\u003eThe William Optics M48 Female to M42 Male Adapter provides a critical connection in your imaging train, stepping down from the 2-inch filter standard M48 thread to the widely used M42 T-thread. It achieves this conversion while adding only 5.3 mm of optical length, making it essential for maintaining precise back focus in demanding imaging systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBridge M48 and M42 Gear with a Precise 5.3mm Path Length\u003c\/h3\u003e\n\u003cp\u003eThis adapter is the solution for integrating components with mismatched threads. It allows you to connect an accessory with female M48 threads, such as a field flattener or 2\" filter wheel, directly to a camera or T-ring that requires a male M42 T-thread interface.\u003c\/p\u003e\n\u003cp\u003eThe adapter's minimal 5.3 mm profile is a key design feature, consuming the smallest possible amount of your system's precious back focus. This is crucial when working with reducers or flatteners that have strict spacing requirements, ensuring you can reach focus and maintain a perfectly corrected field.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Conversion:\u003c\/strong\u003e Seamlessly adapts accessories with female M48x0.75 threads to devices with male M42x0.75 T-threads, such as DSLR T-rings and many astronomy cameras.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimal Back Focus Consumption:\u003c\/strong\u003e The precisely defined 5.3 mm optical path makes it possible to integrate components without exceeding the critical back focus distance of your optical system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Connection:\u003c\/strong\u003e A rigid, threaded connection prevents the tilt and flexure that can ruin long exposures, which is crucial for maintaining a flat imaging field from edge to edge.\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 primary use for the William Optics M48 to M42 Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary function is to connect an imaging train component with \u003cstrong\u003efemale M48 threads\u003c\/strong\u003e (like a field flattener or coma corrector) to a camera, T-ring, or other accessory that has \u003cstrong\u003emale M42 threads\u003c\/strong\u003e. It adds only 5.3 mm to the total optical path.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a William Optics flattener with M48 threads and need to connect my DSLR with an M42 T-ring. Is the WO-YE-M48-42 the right adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is the exact application for this adapter. It will step down the M48 thread on your flattener to the M42 thread on your T-ring, consuming just 5.3 mm of back focus in the process.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 5.3 mm optical length of this adapter affect my back focus calculation?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou must subtract the \u003cstrong\u003e5.3 mm optical length\u003c\/strong\u003e from your total available back focus. For example, if your flattener requires 55 mm of back focus, installing this adapter means you now have 49.7 mm remaining for any other components in your imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the William Optics M48 to M42 Adapter the same as a 2\" filter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. While it uses the same M48 thread pitch as a standard 2\" filter, this adapter is a mechanical converter, not an optical element. It changes the thread type from M48 to M42 and does not alter the light passing through it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the WO-YE-M48-42 adapter to attach M42 accessories to my 2\" focuser drawtube?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNot directly. This adapter has a male M42 thread on the output and is designed to be threaded \u003cem\u003einto\u003c\/em\u003e an M42 female port on a camera or other accessory. To attach M42 accessories to a 2\" drawtube, you would typically need a 2\" nosepiece that terminates in an M42 male thread.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the thread pitches for the M48 and M42 sides of this adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile not listed in the specifications, M48 and M42 threads used in astronomy equipment almost universally use a \u003cstrong\u003e0.75mm pitch\u003c\/strong\u003e. This adapter is designed for full compatibility with standard M48x0.75 (2\" filter) threads and M42x0.75 (T-thread) standards.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eWO-YE-M48-42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Thread (Light-In Side)\u003c\/td\u003e\n\u003ctd\u003eM48 (female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Thread (Light-Out Side)\u003c\/td\u003e\n\u003ctd\u003eM42 (male)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e5.3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics M48 Female to M42 Male Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\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":44967238140189,"sku":"WO-YE-M48-42","price":21.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-M48-Female-to-M42-Male-Adapter-YE-M48-42-1__95751.1596133298.1280.1280.jpg?v=1684339341"},{"product_id":"william-optics-super-high-precision-copper-t-mount-for-canon-eos-full-frame","title":"William Optics Super High Precision COPPER T-Mount for Canon EOS Full Frame","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eSolid Copper Construction for Maximum Rigidity\u003c\/li\u003e\n\u003cli\u003eM48 (2\") Female Thread for Wide-Field Correctors\u003c\/li\u003e\n\u003cli\u003eConnects to Nikon F Mount Camera Bodies\u003c\/li\u003e\n\u003cli\u003ePrecise 8.2 mm Optical Path Length\u003c\/li\u003e\n\u003cli\u003eEliminates Flexure in Heavy Imaging Trains\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 Super High Precision COPPER T-Mount for Canon EOS Full Frame\u003c\/h2\u003e\n\u003cp\u003eThe William Optics Super High Precision COPPER T-Mount provides a rigid, M48-threaded connection for Nikon F mount cameras with a precise optical length of 8.2 mm. This solid copper adapter is engineered to eliminate flexure and maintain thermal stability, ensuring the 8.2 mm spacing is held perfectly constant even as temperatures change.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCopper Construction: A Zero-Flexure Foundation for Your Imaging Train\u003c\/h3\u003e\n\u003cp\u003eUnlike standard aluminum T-rings that can bend or shift under the weight of a heavy camera and filter wheel, this William Optics T-mount is machined from solid copper. This material choice provides a significant increase in rigidity, preventing tilt and ensuring your camera sensor remains perfectly orthogonal to the optical axis for sharp, round stars across the entire frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eM48 Threading for Full-Frame Nikon F Mount Cameras\u003c\/h3\u003e\n\u003cp\u003eThis adapter features the larger M48x0.75 thread standard on the telescope side, not the smaller M42 T-thread. This wider aperture is essential for full-frame Nikon F mount cameras, as it prevents vignetting by providing an unobstructed light cone to the large sensor. It creates a secure, wide-format connection to modern field flatteners and reducers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCopper vs. Aluminum T-Rings: Why 8.2mm of Stability Matters\u003c\/h3\u003e\n\u003cp\u003eWhile an aluminum T-ring is lighter, copper offers superior thermal characteristics for astrophotography. As ambient temperature drops during an imaging session, aluminum contracts more significantly, which can alter the critical 8.2 mm backfocus and cause stars to lose their sharp focus. The thermal stability of copper minimizes this contraction, keeping your focus locked and your data pristine throughout the night.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompetitor Advantage:\u003c\/strong\u003e Standard aluminum T-rings are lighter and less expensive.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWilliam Optics Advantage:\u003c\/strong\u003e The copper construction provides superior thermal stability and flexure resistance, protecting image quality in demanding conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is this William Optics T-Mount made of copper?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe copper construction provides superior thermal stability and rigidity compared to standard aluminum. This prevents focus shift from temperature changes and eliminates flexure in the imaging train, which is critical for sharp, round stars with heavy camera setups.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the benefit of the M48 thread on this T-mount for my Nikon F camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe larger M48 (2-inch) thread provides a wider, unvignetted light path to full-frame sensors. This is a significant improvement over standard M42 T-threads, which can cause dark corners in images taken with full-frame cameras like those using the Nikon F mount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the 8.2mm optical length of this William Optics mount work with my flattener?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 8.2mm optical length is designed to be part of a standard 55mm backfocus calculation. Always check the requirements for your specific flattener or reducer, but this T-mount is designed to integrate cleanly into common M48-threaded imaging trains.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eThe product title says Canon EOS, but the specs say Nikon F. Which is it for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis specific model connects to a \u003cstrong\u003eNikon F camera mount\u003c\/strong\u003e. It is designed to adapt M48-threaded accessories to Nikon F-mount camera bodies. William Optics produces different models for various camera brands.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the copper construction of the William Optics T-Mount help on a cold night imaging the Orion Nebula (M42)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eDuring a long imaging session of M42, temperatures can drop significantly. The copper's thermal stability means it won't contract as much as aluminum, keeping the critical 8.2mm spacing constant and your focus locked. This prevents stars from bloating or drifting out of focus over several hours.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the extra weight of the copper T-mount matter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile copper is heavier than aluminum, the small size of the T-mount means the weight difference is minimal and will not affect the balance of most telescope setups. The added rigidity and stability are a worthwhile trade-off for the slight increase in weight.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Side Connection\u003c\/td\u003e\n\u003ctd\u003eM48 (female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Side Connection\u003c\/td\u003e\n\u003ctd\u003eNikon F Camera Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e8.2 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics Super High Precision COPPER T-Mount\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":44967238402333,"sku":"WO-YE-TR-BR48-C","price":149.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-Super-High-Precision-COPPER-T-Mount-for-Canon-EOS-Full-Frame-YE-TR-BR48-C-1__86614.1596133300.1280.1280.jpg?v=1684339355"},{"product_id":"william-optics-super-high-precision-copper-t-mount-for-nikon-full-frame","title":"William Optics Super High Precision COPPER T-Mount for Nikon Full Frame","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eSolid Copper Construction for Maximum Rigidity\u003c\/li\u003e\n\u003cli\u003eM48 x 0.75 Female Thread for Wide-Field Correctors\u003c\/li\u003e\n\u003cli\u003eDesigned for Nikon Full-Frame DSLR and Mirrorless Cameras\u003c\/li\u003e\n\u003cli\u003ePrevents Vignetting on Large Sensors\u003c\/li\u003e\n\u003cli\u003ePrecision Machining for Secure, Flex-Free Connection\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 Super High Precision COPPER T-Mount for Nikon Full Frame\u003c\/h2\u003e\n\u003cp\u003eThe William Optics Super High Precision COPPER T-Mount connects your Nikon full-frame camera to any M48 (0.75 pitch) threaded flattener or field corrector, providing the large clear aperture required to prevent vignetting. Its solid copper body offers superior rigidity compared to standard aluminum T-rings, ensuring perfect optical alignment for demanding imaging trains that utilize M48 threads.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSolid Copper Construction: Rigidity Beyond Aluminum\u003c\/h3\u003e\n\u003cp\u003eUnlike standard T-rings made from lightweight aluminum, this William Optics T-mount is machined from a solid piece of copper. This deliberate material choice provides a significant increase in rigidity, eliminating the potential for flexure between your camera and the rest of your optical train. For imagers using heavy filter wheels or off-axis guiders, this robust connection ensures that sensor tilt is not introduced by the adapter itself.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eM48 Clear Aperture: Eliminating Vignetting on Full-Frame Sensors\u003c\/h3\u003e\n\u003cp\u003eStandard T-rings use a smaller M42 thread, which acts as a bottleneck and darkens the corners of images captured with full-frame sensors. The William Optics T-mount utilizes the larger M48 thread format, ensuring the light cone from your flattener or reducer fully illuminates your Nikon's sensor from edge to edge. This is essential for creating flat, evenly illuminated astrophotos without the need for aggressive cropping.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eWilliam Optics Copper M48 vs. Standard Aluminum M42 T-Rings\u003c\/h3\u003e\n\u003cp\u003eChoosing the right T-ring is a critical, often overlooked, part of the imaging train. A standard aluminum M42 T-ring is sufficient for smaller APS-C sensors, but it presents two key limitations for full-frame users that the William Optics Copper M48 T-mount solves.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Aluminum T-Ring's Limitation:\u003c\/strong\u003e Aluminum is light but can flex under the load of a heavy camera and accessories, introducing sensor tilt and elongated stars in the corners of your images.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWilliam Optics Copper T-Mount's Advantage:\u003c\/strong\u003e Copper is a much stiffer material, providing a rock-solid, flex-free connection that maintains perfect optical alignment throughout an imaging session, even as temperature changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard M42 Thread's Limitation:\u003c\/strong\u003e The smaller M42 diameter physically vignettes the light cone, preventing it from covering a full-frame sensor and causing dark corners in your final images.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWilliam Optics M48 Thread's Advantage:\u003c\/strong\u003e The M48 thread provides a wide, unobstructed path for light, guaranteeing full illumination for 35mm format sensors and enabling you to use the entire frame of your Nikon camera.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy use a copper T-ring like this William Optics model instead of a standard aluminum one?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA \u003cstrong\u003ecopper T-ring\u003c\/strong\u003e offers significantly higher rigidity than an aluminum one. This prevents flexure in the imaging train, which can cause sensor tilt and distorted stars, especially when using heavy cameras or accessories like filter wheels. The added mass and thermal properties also contribute to a more stable connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of the M48 thread on this T-mount for my Nikon D850?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe full-frame sensor in your Nikon D850 requires a large, fully-illuminated image circle to avoid vignetting (darkened corners). Standard M42 T-rings are too narrow and will constrict the light path. The \u003cstrong\u003eM48 thread\u003c\/strong\u003e on this William Optics T-mount provides a wider clear aperture, ensuring the entire sensor is illuminated for clean, flat frames.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this William Optics T-mount connect directly to my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this T-mount is designed to connect your Nikon camera to a field flattener, reducer, or other corrector that has male M48 x 0.75 threads. You will thread this T-mount onto your corrector, and then the entire assembly connects to your telescope's focuser.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the copper material add a lot of weight to the imaging train?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, copper is denser than aluminum, so this T-mount is heavier than a standard ring. However, this additional weight is a key part of its stability. The trade-off is a small increase in weight for a significant reduction in mechanical flexure, which is critical for high-resolution imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this T-mount help when imaging large targets like the Andromeda Galaxy (M31) with a full-frame sensor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen framing a large object like the Andromeda Galaxy (M31), you need to use your entire full-frame sensor. An M42 T-ring would cause vignetting, forcing you to crop the image and lose parts of the galaxy's faint outer arms. The \u003cstrong\u003eWilliam Optics M48 T-mount\u003c\/strong\u003e ensures the whole field is usable, allowing you to capture M31 in its entirety with even illumination.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the William Optics M48 T-mount compatible with Nikon Z-series mirrorless cameras?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis T-mount is designed for the standard Nikon F-mount. To use it with a Nikon Z-series mirrorless camera, you will need to use the \u003cstrong\u003eNikon FTZ (F-mount to Z-mount) adapter\u003c\/strong\u003e between your camera body and this T-mount.\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-YE-TR-BR48-N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Mount\u003c\/td\u003e\n\u003ctd\u003eNikon F-Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Side Thread\u003c\/td\u003e\n\u003ctd\u003eM48 x 0.75 (Female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eCopper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor Compatibility\u003c\/td\u003e\n\u003ctd\u003eFull Frame \/ APS-C\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 Super High Precision COPPER T-Mount for Nikon\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":44967238435101,"sku":"WO-YE-TR-BR48-N","price":149.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-Super-High-Precision-COPPER-T-Mount-for-Nikon-Full-Frame-YE-TR-BR48-N-1__02819.1596133300.1280.1280.jpg?v=1684339362"},{"product_id":"william-optics-48mm-t-mount-for-sony-e-black","title":"William Optics 48mm T-Mount for Sony E - Black","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects Sony E-mount cameras to M48 accessories\u003c\/li\u003e\n\u003cli\u003eProvides a precise 36.7 mm optical length\u003c\/li\u003e\n\u003cli\u003eM48 (female) threads reduce vignetting on large sensors\u003c\/li\u003e\n\u003cli\u003eDurable, black anodized aluminum construction\u003c\/li\u003e\n\u003cli\u003eEngineered for William Optics optical systems\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 48mm T-Mount for Sony E - Black\u003c\/h2\u003e\n\u003cp\u003eSecurely connect your Sony E-mount camera to your telescope's M48 corrector or flattener with the William Optics 48mm T-Mount for Sony E. This adapter provides a precise optical length of 36.7 mm, critical for achieving a perfectly flat field with William Optics imaging systems. Its female M48 threads create a wide, unvignetted light path directly to your camera's sensor, eliminating the bottleneck caused by older M42 T-rings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eM48 Threading: A Wider, 36.7mm Path for Full-Frame Sony Sensors\u003c\/h3\u003e\n\u003cp\u003eThis T-mount is engineered specifically for modern astrophotography setups that utilize full-frame or large APS-C sensors, common in the Sony Alpha camera line. The M48 (2-inch filter) thread provides a larger clear aperture than the standard M42 T-thread, ensuring the corrected light cone from your flattener fully illuminates the sensor without clipping the corners of the frame.\u003c\/p\u003e\n\u003cp\u003eThe fixed 36.7 mm optical length is not arbitrary; it is calculated to achieve the exact back focus required by many William Optics flatteners and reducers when paired with a Sony E-mount camera. This single-piece design removes the guesswork and potential for tilt introduced by using multiple extension tubes, resulting in sharper stars across your entire image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eM48 vs. M42 T-Rings: The 6mm Difference for Full-Frame Imaging\u003c\/h3\u003e\n\u003cp\u003eFor decades, the M42 \"T-ring\" was the standard for connecting cameras to telescopes. However, its 42mm clear aperture acts as a choke point for the light path, causing significant vignetting (darkened corners) on sensors larger than the APS-C format. A full-frame sensor simply cannot be fully illuminated through such a narrow opening.\u003c\/p\u003e\n\u003cp\u003eThe William Optics 48mm T-Mount solves this problem. By expanding the connection thread to M48, it creates a wider gateway for light, preserving the field illumination your telescope's corrector was designed to deliver. If you are imaging with a full-frame Sony camera, an M48 T-mount is essential for maximizing the usable area of your sensor and capturing clean, evenly illuminated frames.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the William Optics 48mm T-Mount for Sony E?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis T-mount serves one primary function: to connect a \u003cstrong\u003eSony E-mount camera\u003c\/strong\u003e (such as those in the Alpha series) to a telescope flattener, reducer, or other accessory that uses a male \u003cstrong\u003eM48x0.75 thread\u003c\/strong\u003e. It also sets the camera sensor at a precise \u003cstrong\u003e36.7 mm\u003c\/strong\u003e distance from the accessory's threads, which is critical for achieving correct back focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy should I choose this M48 T-Mount over a standard M42 T-ring for my Sony A7?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA standard M42 T-ring has a smaller opening that will cause significant vignetting (darkened corners) on the full-frame sensor of a Sony A7 series camera. The larger \u003cstrong\u003eM48 thread\u003c\/strong\u003e on this William Optics mount provides a wider light path, ensuring the entire sensor is evenly illuminated, which is crucial for high-quality, wide-field astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 36.7 mm optical length of this T-Mount important?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is extremely important. Most field flatteners and reducers require a specific back focus distance (typically 55mm) to produce sharp stars across the entire field. Sony E-mount cameras have a flange distance of 18mm. This adapter's \u003cstrong\u003e36.7 mm length\u003c\/strong\u003e, when added to the camera's 18mm, totals 54.7mm—very close to the 55mm standard. It is specifically designed to achieve perfect spacing with many William Optics correctors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich William Optics telescopes is this 48mm T-Mount designed for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis T-mount is compatible with any William Optics telescope that uses a field flattener or reducer terminating in a male M48 thread. This includes popular models such as:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRedCat, WhiteCat, and SpaceCat series refractors\u003c\/li\u003e\n\u003cli\u003eFluorostar (FLT) series with their corresponding flatteners\u003c\/li\u003e\n\u003cli\u003eGran Turismo (GT) series with their corresponding flatteners\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAlways check your specific flattener's documentation to confirm it requires an M48 connection and is compatible with the resulting back focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this T-mount work for imaging the Andromeda Galaxy (M31) with my full-frame Sony camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is an ideal accessory for that exact scenario. The Andromeda Galaxy is a very large target, and a full-frame sensor is needed to capture it fully with many refractors. Using this \u003cstrong\u003e48mm T-Mount\u003c\/strong\u003e ensures that the faint outer spiral arms of M31 are not dimmed or cut off by vignetting, which would almost certainly happen with a smaller M42 T-ring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I attach the WO 48mm T-Mount to my imaging train?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFirst, remove the lens from your Sony E-mount camera. Align the indicator dot on the T-mount with the dot on your camera's bayonet mount and twist to lock it in place, just like a standard lens. Then, you can thread the entire camera and T-mount assembly directly onto the male M48 threads of your telescope's field flattener or reducer.\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\u003eConnection to Telescope\u003c\/td\u003e\n\u003ctd\u003eM48 x 0.75 Female Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnection to Camera\u003c\/td\u003e\n\u003ctd\u003eSony E-Mount (NEX\/Alpha)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length \/ Back Focus Contribution\u003c\/td\u003e\n\u003ctd\u003e36.7 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics 48mm T-Mount for Sony E\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":44967238467869,"sku":"WO-TM-SN-E-M48","price":76.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-48mm-T-Mount-for-Sony-E-Space-Gray-YE-TR-M48ET-TG-1__11108.1596133301.1280.1280.jpg?v=1684339370"},{"product_id":"william-optics-micro-4-3-48mm-t-mount-for-olympus-space-gray","title":"William Optics Micro 4\/3 48mm T-Mount for Olympus - Black","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M48 Correctors to Olympus Micro 4\/3 Cameras\u003c\/li\u003e\n\u003cli\u003eFixed 35.6 mm Optical Length for Precise Back Focus\u003c\/li\u003e\n\u003cli\u003eLight-In Connection: M48 (Female) Thread\u003c\/li\u003e\n\u003cli\u003eLight-Out Connection: Olympus Micro 4\/3 Bayonet Mount\u003c\/li\u003e\n\u003cli\u003eDurable Single-Piece Aluminum Construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\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 Micro 4\/3 48mm T-Mount for Olympus - Black\u003c\/h2\u003e\n      \u003cp\u003eThe William Optics Micro 4\/3 48mm T-Mount provides a direct, secure connection from any M48 female thread to your Olympus or Panasonic Micro 4\/3 camera body. Its single-piece design is machined to a precise optical length of 35.6 mm, achieving the ideal standard 55 mm total back focus requirement when paired with a Micro 4\/3 camera body.\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\u003ePrecision Spacing: Achieving 55mm Total Back Focus\u003c\/h3\u003e\n      \u003cp\u003eA field flattener or reducer-flattener only delivers sharp, point-like stars across the entire frame when the camera sensor is placed at a specific distance from its rear lens element. This William Optics T-Mount provides the exact 35.6 mm optical path length that, when combined with the internal flange focal distance of a Micro 4\/3 camera, yields the total 55 mm back focus needed for William Optics refractors.\u003c\/p\u003e\n      \u003cp\u003eUsing this single, rigid adapter removes the guesswork and potential for tilt. The result is a mechanically solid imaging train and a flat, fully corrected field of view, letting you get the most out of your William Optics telescope.\u003c\/p\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\"\u003eWhat is the primary purpose of the William Optics M48 T-Mount for Micro 4\/3?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter connects a field flattener or other corrector with a standard \u003cstrong\u003eM48 (2-inch filter) thread\u003c\/strong\u003e to any camera body that uses the \u003cstrong\u003eOlympus\/Panasonic Micro 4\/3 mount\u003c\/strong\u003e. Its main function is to provide an optical length of \u003cstrong\u003e35.6 mm\u003c\/strong\u003e, reaching a total system back focus of 55 mm once attached to your Micro 4\/3 camera.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is the 35.6 mm optical length of this William Optics T-Mount critical for imaging?\u003c\/h3\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eField flatteners are designed to work at a specific distance from the camera sensor (typically 55 mm total). If the spacing is incorrect, you will see elongated or out-of-focus stars in the corners of your images. Combined with a Micro 4\/3 camera sensor distance, this adapter delivers the exact \u003cstrong\u003e55 mm total back focus\u003c\/strong\u003e needed to produce sharp stars from edge to edge.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI have a William Optics RedCat 51. Is this the right T-Mount for my Olympus OM-D E-M1 camera?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, this is the correct adapter. The RedCat 51 has an integrated flattener that terminates in an M48 thread. The William Optics M48 T-Mount for Micro 4\/3 will connect directly to the telescope and your Olympus camera, establishing the full 55 mm back focus for a fully corrected image.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this William Optics M48 T-Mount with a non-William Optics telescope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, provided your telescope's flattener has an M48 output thread and requires a standard \u003cstrong\u003e55 mm back focus\u003c\/strong\u003e when paired with a Micro 4\/3 camera body. Always verify the back focus requirement of your specific flattener before imaging.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the William Optics M48 T-Mount cause vignetting with my Micro 4\/3 camera?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo. The M48 thread provides a wide, fully illuminated light cone that is significantly larger than the sensor used in Micro 4\/3 cameras. This ensures there is no vignetting or light fall-off at the edges of the frame caused by the adapter itself.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill the William Optics M48 T-Mount work with my ZWO cooled astronomy camera?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo. This adapter features a bayonet mount for DSLR and mirrorless cameras like those from Olympus and Panasonic. It will not attach to a cooled astronomy camera, which typically uses direct threaded connections (like M42 or M48).\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\u003eLight-In Side\u003c\/td\u003e\n\u003ctd\u003eM48 (female)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eLight-Out Side\u003c\/td\u003e\n\u003ctd\u003eOlympus Micro 4\/3 Camera Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e35.6 mm (55 mm total back focus with Micro 4\/3 camera)\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 Micro 4\/3 48mm T-Mount\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":44967238533405,"sku":"WO-TM-MFT-M48","price":65.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/TM-MFT-M48-1.jpg?v=1714747777"},{"product_id":"william-optics-48mm-t-mount-for-canon","title":"William Optics 48mm T-Mount for Canon","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects M48 (2-inch) Threaded Correctors to Canon EOS Cameras\u003c\/li\u003e\n\u003cli\u003eWide M48 Aperture Eliminates Vignetting on Full-Frame Sensors\u003c\/li\u003e\n\u003cli\u003eAdds a Precise 10.6 mm of Optical Length to the Imaging Train\u003c\/li\u003e\n\u003cli\u003eMachined from Black Anodized Aluminum\u003c\/li\u003e\n\u003cli\u003eFemale M48x0.75 Threading\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 48mm T-Mount for Canon\u003c\/h2\u003e\n\u003cp\u003eThe William Optics 48mm T-Mount for Canon is the professional-grade solution for connecting your Canon EOS camera to a modern 2-inch imaging train, featuring a wide M48 female thread to prevent vignetting on full-frame sensors. It adds a precise 10.6 mm to the optical path, a critical constant for calculating the exact spacing required by field flatteners and reducers to achieve sharp stars across the entire frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eM48 Threads \u0026amp; 10.6mm Spacing: The Solution for Full-Frame Canon Imaging\u003c\/h3\u003e\n\u003cp\u003eThis adapter solves the most common bottleneck in DSLR astrophotography: the restrictive M42 \"T-thread.\" By using the larger M48 x 0.75 female thread, this T-mount provides a wider, un-obstructed light path from your flattener or reducer to your camera's sensor. This is essential for owners of full-frame Canon cameras, as it eliminates the vignetting (darkened corners) that M42 adapters often create.\u003c\/p\u003e\n\u003cp\u003eThe fixed optical length of 10.6 mm is designed for precision. When paired with a Canon EOS camera body, which has a native flange focal distance of 44mm, this adapter brings your total back focus to 54.6mm. This is within a millimeter of the 55mm standard required by most field correctors, allowing you to achieve a flat field with minimal or no additional spacers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eWilliam Optics M48 vs. Standard M42 T-Ring: A Wider Path to the Sensor\u003c\/h3\u003e\n\u003cp\u003eWhile standard M42 T-rings are common, they were designed for older film formats and can act as a choke point for the light cone in a modern imaging setup. The William Optics M48 T-Mount is purpose-built to overcome this limitation.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard M42 T-Ring:\u003c\/strong\u003e The smaller 42mm thread diameter often vignettes the corners of full-frame and even some large APS-C sensors, forcing you to crop your final images or spend time correcting gradients in post-processing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWilliam Optics M48 T-Mount:\u003c\/strong\u003e The larger 48mm thread diameter provides a clear aperture that fully illuminates sensors up to 44mm diagonally. This ensures your expensive full-frame sensor receives all the light your telescope collects, resulting in brighter, evenly illuminated frames from edge to edge.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of the William Optics M48 T-Mount over a standard M42 T-ring for my Canon EOS camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage is the larger \u003cstrong\u003eM48 thread diameter\u003c\/strong\u003e, which prevents vignetting (darkening of the corners) on full-frame and large APS-C camera sensors. A standard M42 T-ring can physically block some of the light cone, while the M48 mount ensures the entire sensor is evenly illuminated.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this M48 T-Mount work with my William Optics refractor and flattener?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this T-mount is specifically designed to integrate with William Optics flatteners and other correctors that output an M48 male thread and require approximately 55mm of back focus. The \u003cstrong\u003e10.6 mm optical length\u003c\/strong\u003e of this adapter is a key part of that calculation when used with a Canon EOS camera body.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I calculate back focus using the 10.6 mm optical length of this William Optics T-mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou add the adapter's optical length to your camera's flange distance. For a Canon EOS camera, the flange distance is 44mm. So, the total distance from the T-mount's M48 thread to your sensor will be \u003cstrong\u003e44mm + 10.6mm = 54.6mm\u003c\/strong\u003e. You can then use thin M48 spacers to reach the exact back focus required by your specific flattener or reducer, which is typically 55mm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter compatible with both full-frame and APS-C Canon EOS cameras?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is compatible with any camera that uses the \u003cstrong\u003eCanon EOS mount\u003c\/strong\u003e. While it provides the most significant benefit for full-frame cameras by preventing vignetting, it works perfectly with APS-C models as well, providing a secure, wide-aperture connection to your telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use 2-inch filters with the William Optics M48 T-Mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter itself does not have threads for a filter. Filters should be placed earlier in the imaging train, typically by threading them into a dedicated filter drawer, a filter wheel, or directly onto the nosepiece of the flattener\/reducer before you attach this T-mount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter let me attach my Canon EOS camera to a Schmidt-Cassegrain telescope for imaging the Orion Nebula (M42)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, provided your Schmidt-Cassegrain (SCT) is equipped with a focal reducer or flattener that terminates in male \u003cstrong\u003eM48 threads\u003c\/strong\u003e. You would thread this T-mount onto the corrector, and then attach your Canon EOS camera to the bayonet mount to image large targets like the Orion Nebula (M42).\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\u003eTelescope Side Connection\u003c\/td\u003e\n\u003ctd\u003eM48 x 0.75 Female Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Side Connection\u003c\/td\u003e\n\u003ctd\u003eCanon EOS Camera Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e10.6 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics 48mm T-Mount for Canon EOS\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\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":44967253475613,"sku":"WO-TM-CN-EOS-M48","price":54.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-48mm-T-Mount-for-Canon-TM-CN-EOS-M48-1__29196.1596133298.1280.1280.jpg?v=1684339552"},{"product_id":"starlight-instruments-eyepiece-adapter-for-vixen-focal-reducer","title":"Starlight Instruments Eyepiece Adapter for Vixen Focal Reducer","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects Vixen Focal Reducers to 2.0\" eyepiece holders\u003c\/li\u003e\n\u003cli\u003eStandard 2.0\" barrel diameter for universal compatibility\u003c\/li\u003e\n\u003cli\u003eMachined by Starlight Instruments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\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\u003eStarlight Instruments Eyepiece Adapter for Vixen Focal Reducer\u003c\/h2\u003e\n      \u003cp\u003eThis Starlight Instruments Eyepiece Adapter is the essential component for connecting a Vixen Focal Reducer to any standard 2.0\" focuser, diagonal, or visual back. It provides a secure, precisely machined link, allowing you to use your favorite 2.0\" wide-field eyepieces with Vixen's optical systems.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eA 2.0\" Connection for Vixen Focal Reducers\u003c\/h3\u003e\n      \u003cp\u003eThe Vixen Focal Reducer is designed to decrease your telescope's focal ratio, but it often terminates in a proprietary thread. This adapter solves that problem by converting the reducer's output to a standard 2.0\" barrel, opening up a world of eyepiece options that would otherwise be incompatible. This exclusive Starlight Instruments part ensures a solid mechanical connection, preventing tilt and maintaining optical alignment for sharp, wide-field views.\u003c\/p\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\"\u003eWhat does the Starlight Instruments Eyepiece Adapter for Vixen Focal Reducer do?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter allows you to attach a Vixen Focal Reducer to any standard \u003cstrong\u003e2.0\" opening\u003c\/strong\u003e, such as a focuser, diagonal, or visual back. This enables you to use 2.0\" eyepieces with the focal reducer, achieving wider fields of view.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Starlight Instruments adapter fit any 2.0\" focuser?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. The adapter features a standard 2.0\" barrel, making it compatible with any focuser, visual back, or accessory holder that accepts 2.0\" eyepieces.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this adapter with reducers other than the Vixen model?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter is specifically designed for the threads and optical spacing of the \u003cstrong\u003eVixen Focal Reducer\u003c\/strong\u003e. It is not intended for use with focal reducers from other manufacturers.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this Starlight adapter help me observe the Andromeda Galaxy (M31) with my Vixen setup?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eBy using the Vixen Focal Reducer, you shorten your telescope's effective focal length. This adapter then lets you insert a low-power, 2.0\" wide-field eyepiece. The combination provides a significantly larger true field of view, allowing you to frame large objects like the Andromeda Galaxy (M31) or the Pleiades (M45) in a single view.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the benefit of using this adapter with my Vixen Focal Reducer and a 2.0\" eyepiece?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe primary benefit is gaining a \u003cstrong\u003ewider true field of view\u003c\/strong\u003e. The focal reducer makes your telescope \"faster,\" and the ability to use a 2.0\" eyepiece maximizes the amount of sky you can see at one time. This is ideal for observing large nebulae, open clusters, and star fields in the Milky Way.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Starlight Instruments Vixen Reducer Adapter threaded for 2.0\" filters?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe manufacturer does not specify if this adapter includes standard M48 filter threads. You should assume it is not threaded for filters unless confirmed otherwise.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eStarlight Instruments 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Starlight Instruments","offers":[{"title":"Default Title","offer_id":44967260717341,"sku":"SI-EA20-205-60","price":154.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-Eyepiece-Adapter-for-Vixen-Focal-Reducer-EA20-205-60-1__40629.1596313974.1280.1280.jpg?v=1684339803"},{"product_id":"starlight-instruments-orion-0-85-focal-reducer-adapter-w-m42-standard-t-thread","title":"Starlight Instruments Orion 0.85 Focal Reducer Adapter w\/ M42 Standard T-Thread","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects Orion 0.85x Reducer to M42 T-Thread Cameras\u003c\/li\u003e\n\u003cli\u003eEngineered by Starlight Instruments\u003c\/li\u003e\n\u003cli\u003eEnsures a Rigid, Non-Flexing Imaging Train\u003c\/li\u003e\n\u003cli\u003eStandard M42 Female T-Threads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eStarlight Instruments Orion 0.85 Focal Reducer Adapter w\/ M42 Standard T-Thread\u003c\/h2\u003e\n\u003cp\u003eThis Starlight Instruments adapter creates a direct, secure attachment between an Orion 0.85x Focal Reducer and any camera or accessory using standard M42 T-threads. It is machined to replace push-fit or compression-ring holders, forming a solid, all-threaded optical train. This rigid connection is essential for eliminating tilt and flexure during long-exposure astrophotography.\u003c\/p\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 Rigid, All-Threaded Connection for Orion Reducers\u003c\/h3\u003e\n\u003cp\u003eFor imagers using the Orion 0.85x Focal Reducer, achieving a rigid connection to the camera is critical for preventing optical misalignment. This adapter provides the necessary female M42 T-thread interface, allowing you to securely attach your DSLR, mirrorless, or dedicated astronomy camera. By creating a fully threaded system, you ensure your components remain perfectly square to the sensor throughout an imaging session, resulting in sharper stars across the field.\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 Starlight Instruments Orion Reducer Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts sole purpose is to connect an \u003cstrong\u003eOrion 0.85x Focal Reducer\u003c\/strong\u003e directly to a camera or accessory that has male \u003cstrong\u003eM42 T-threads\u003c\/strong\u003e. This creates a secure, threaded connection that is superior to standard compression rings for astrophotography, as it prevents tilt and flexure in the imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy use this Orion Reducer Adapter instead of a standard 2\" nosepiece on my camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA standard nosepiece relies on thumbscrews and a compression ring, which can introduce slight tilt. This adapter threads directly onto the reducer, creating a solid, metal-on-metal connection that holds the camera sensor perfectly perpendicular to the optical axis. For imaging, a threaded connection is always the more stable and reliable option.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter compatible with other focal reducers?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this adapter is specifically machined by Starlight Instruments for the threads and optical spacing requirements of the \u003cstrong\u003eOrion 0.85x Focal Reducer\u003c\/strong\u003e. It is not a universal adapter and will likely not work with reducers from other brands.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of camera can I connect with this Orion Reducer Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can connect any imaging device that uses the industry-standard M42 T-thread. This includes most dedicated astronomy cameras (from ZWO, QHY, etc.), as well as DSLR and mirrorless cameras via a camera-specific T-ring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter work with a ZWO ASI294MC Pro camera and an Orion ED80T CF telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. If you are using the Orion 0.85x Focal Reducer with your ED80T CF, this adapter will allow you to securely thread your ASI294MC Pro camera to the reducer. This setup creates a robust imaging train ideal for capturing deep-sky objects 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 a filter wheel with this Starlight Instruments adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, provided your total back focus distance remains correct. You would thread this adapter to the Orion reducer, then thread your filter wheel to the adapter's M42 threads, and finally thread your camera to the filter wheel. You must ensure the distance from the reducer to your camera sensor meets the reducer's specific back focus requirement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eStarlight Instruments 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Starlight Instruments","offers":[{"title":"Default Title","offer_id":44967260848413,"sku":"SI-A20-287B","price":182.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-Orion-0-85-Focal-Reducer-Adapter-M42-Standard-T-Thread-A20-287B-1__48867.1596313974.1280.1280.jpg?v=1684339806"},{"product_id":"starlight-instruments-eyepiece-adapter-for-celestron-meade-6-3-focal-reducer","title":"Starlight Instruments Eyepiece Adapter for Celestron\/Meade 6.3 Focal Reducer","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects eyepieces to Celestron\/Meade f\/6.3 Focal Reducers\u003c\/li\u003e\n\u003cli\u003eEnables wide-field visual observation with SCTs\u003c\/li\u003e\n\u003cli\u003ePrecision-machined for a secure, non-flexing fit\u003c\/li\u003e\n\u003cli\u003eDesigned and manufactured by Starlight Instruments\u003c\/li\u003e\n\u003cli\u003ePrevents marring of eyepiece barrels\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\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\u003eStarlight Instruments Eyepiece Adapter for Celestron\/Meade 6.3 Focal Reducer\u003c\/h2\u003e\n      \u003cp\u003eThe Starlight Instruments Eyepiece Adapter for the Celestron\/Meade f\/6.3 Focal Reducer is a specialized component designed to bridge the gap between imaging and visual astronomy. This adapter directly converts the reducer's camera-oriented threads into a secure holder for standard eyepieces, allowing you to experience the wider, brighter views of an f\/6.3 optical system.\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\u003eUnlocking Visual Use with the Celestron\/Meade f\/6.3 Reducer\u003c\/h3\u003e\n      \u003cp\u003eThe classic Celestron and Meade f\/6.3 focal reducer\/corrector is an essential tool for Schmidt-Cassegrain telescope (SCT) imaging, but its threaded output is designed for cameras, not eyepieces. This Starlight Instruments adapter provides the missing link, allowing you to insert your favorite eyepieces directly behind the reducer. The result is a significantly wider true field of view, making it easier to frame large deep-sky objects like the Andromeda Galaxy (M31) or the Orion Nebula (M42) in their entirety.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eA Starlight Instruments Connection for Your Optical Train\u003c\/h3\u003e\n      \u003cp\u003eConsistent with all Starlight Instruments hardware, this adapter is machined to exacting tolerances to ensure a zero-flexure connection in your optical train. A secure, non-marring brass compression ring grips your eyepieces firmly without scratching their barrels, maintaining perfect alignment from the reducer to your eye. This level of mechanical integrity prevents image shift and ensures that the optical correction of the f\/6.3 reducer is maintained across the field.\u003c\/p\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\"\u003eWhat is the main purpose of the Starlight Instruments Eyepiece Adapter for the f\/6.3 Reducer?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIts primary purpose is to allow you to use eyepieces with a Celestron or Meade f\/6.3 focal reducer. These reducers typically have threads designed for cameras, so this adapter converts that threaded connection into a standard eyepiece holder, enabling wide-field visual observation through your SCT.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this adapter improve my view in a Celestron 8\" SCT with the f\/6.3 reducer?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eBy allowing you to use an eyepiece with your f\/6.3 reducer, this Starlight Instruments adapter lets you take visual advantage of the reducer's wider, faster field. In an 8\" SCT, you'll be able to frame large star clusters and nebulae that would otherwise be too large for the telescope's native f\/10 field of view. The adapter ensures a rigid connection, preserving the sharpness provided by the reducer.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Starlight Instruments adapter work with other focal reducers?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter is specifically designed to thread onto the Celestron and Meade f\/6.3 focal reducer\/correctors. It is not intended for use with other models, such as f\/3.3 reducers or those from other manufacturers, which may have different thread specifications or back-focus requirements.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of this Starlight Instruments adapter over a generic one for my Meade LX200?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe key advantage is the manufacturing precision. Starlight Instruments machines their components to extremely tight tolerances, which guarantees a solid, flex-free fit. This eliminates potential image shift or optical misalignment that can occur with lower-quality adapters, ensuring your optical train remains perfectly collimated from the telescope to 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 with a camera?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, this adapter is designed to hold eyepieces for visual use. It converts the reducer's threads into an eyepiece holder. For imaging, you would typically connect your camera directly to the reducer's threads using appropriate T-rings and spacers.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Starlight Instruments adapter use a compression ring to hold eyepieces?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. Like other premium Starlight Instruments accessories, it features a non-marring brass compression ring. This design holds the eyepiece barrel securely and evenly without the risk of scratching or scoring caused by a simple thumbscrew pressing directly onto the barrel.\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\u003eCelestron\/Meade f\/6.3 Focal Reducers\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\"\u003eEyepiece Adapter for Celestron\/Meade 6.3 Focal Reducer\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\/starlight-instruments-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eStarlight Instruments 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Starlight Instruments","offers":[{"title":"Default Title","offer_id":44967280050461,"sku":"SI-EA20-2.24","price":154.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Starlight-Instruments-Eyepiece-Adapter-for-Celestron-Meade-6-3-Focal-Reducer-EA20-2.24-1__05071.1596314006.1280.1280.jpg?v=1684339944"},{"product_id":"baader-c-mount-canon-eos","title":"Baader C-Mount Canon EOS","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts Canon EOS (EF\/EF-S) mount lenses to C-mount camera bodies\u003c\/li\u003e\n\u003cli\u003eEnables wide-field imaging with photographic lenses\u003c\/li\u003e\n\u003cli\u003eAll-metal construction for secure connection\u003c\/li\u003e\n\u003cli\u003eMechanical adapter; no electronic lens control\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eBaader C-Mount to Canon EOS Adapter\u003c\/h2\u003e\n      \u003cp\u003eThe Baader C-Mount to Canon EOS adapter provides a simple, robust mechanical bridge between two distinct optical standards. It allows you to attach the extensive range of high-quality Canon EOS (EF and EF-S) photographic lenses to any camera equipped with a standard female C-mount thread. This opens up new possibilities for wide-field imaging with specialized astronomical, industrial, or scientific cameras previously limited to smaller, dedicated C-mount lenses.\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\u003eConnecting Canon EOS Lenses to C-Mount Cameras\u003c\/h3\u003e\n      \u003cp\u003eThis adapter is engineered for one core purpose: to leverage the optical excellence of Canon's photographic lenses for applications requiring a C-mount camera. By mounting a fast telephoto or wide-angle lens, you can transform a guide camera or planetary imager into a capable tool for capturing meteor showers, wide star fields, or all-sky views.\u003c\/p\u003e\n      \u003cp\u003eIt is critical to understand that this is a purely mechanical adapter. It does not pass any electronic signals between the lens and the camera body. This presents a significant trade-off you must plan for.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eManual Focus Only:\u003c\/strong\u003e You must use the lens's manual focus ring to achieve a sharp image. Autofocus is not supported.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eNo Aperture Control:\u003c\/strong\u003e Modern Canon lenses that lack a physical aperture ring will be fixed at their widest aperture. This is ideal for low-light work but offers no ability to stop down the lens to improve sharpness or increase depth of field.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSecure Fit:\u003c\/strong\u003e The all-metal construction ensures a rigid, flex-free connection, maintaining proper alignment between the lens and the camera sensor.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the primary function of the Baader C-Mount to Canon EOS adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe Baader C-Mount to Canon EOS adapter's primary function is to physically connect a lens with a \u003cstrong\u003eCanon EOS bayonet mount\u003c\/strong\u003e to a camera body that uses a \u003cstrong\u003eC-mount thread\u003c\/strong\u003e. This allows you to use high-quality DSLR and mirrorless camera lenses on specialized astronomy or industrial cameras.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I control the aperture of my Canon EF lens with this Baader adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003e\u003cstrong\u003eNo.\u003c\/strong\u003e This is a purely mechanical adapter with no electronic contacts. It cannot communicate with the lens to control aperture or autofocus. A Canon EOS lens without a manual aperture ring will remain fixed at its widest aperture setting when used with this adapter.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhich types of cameras are compatible with the Baader C-Mount to Canon EOS adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAny camera with a standard female C-mount thread is compatible. This includes many popular astronomical guide cameras, planetary imagers, and various scientific and industrial video cameras. It is not designed to attach C-mount lenses to a Canon EOS camera body.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow would I use the Baader C-Mount adapter for imaging the Perseid meteor shower?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eFor an event like the Perseids, you would attach a fast, wide-angle Canon EF lens (e.g., a 16mm or 24mm) to the Baader adapter and connect it to a sensitive C-mount astronomy camera. The wide field of view allows you to capture a large area of the sky, increasing your chances of catching meteors, while the lens's wide-open aperture gathers the maximum amount of light during short exposures.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Baader C-Mount adapter with a Canon telephoto lens to guide my main telescope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, this is an excellent application. By mounting a Canon telephoto lens (e.g., 200mm or 300mm) onto a C-mount guide camera, you create a high-resolution, independent guidescope. This setup is often lighter and more optically refined than many dedicated guidescopes, potentially leading to more accurate guiding corrections.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill using the Baader C-Mount to Canon EOS adapter cause vignetting?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eVignetting depends on the lens's image circle relative to your camera's sensor size. Most Canon EF lenses are designed to cover a full-frame (36x24mm) sensor, which is much larger than the sensors in typical C-mount cameras. Therefore, it is highly unlikely that the lens itself will cause vignetting on a smaller C-mount sensor.\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\u003c!-- No specifications provided --\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.08\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Adaptable\u003c\/td\u003e\n\u003ctd\u003eC-Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eCamera Adapter, Expanding Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e26\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUsage\u003c\/td\u003e\n\u003ctd\u003eto connect DSLR camera lenses to video cameras or DMK video modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003e1\" Thread (C-Mount)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdaptable to\u003c\/td\u003e\n\u003ctd\u003eCanon EOS lenses\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    \u003c!-- No items listed in the box --\u003e\n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c!-- No manual or software available --\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Digiscoping_Camera_Adaptations_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Digiscoping Camera Adaptations Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967301775645,"sku":"BAA-2958525","price":124.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-C-Mount-Canon-EOS-1__92654.1597110561.1280.1280.jpg?v=1684340283"},{"product_id":"baader-c-mount-nikon","title":"Baader C-Mount Nikon","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects Nikon F-mount lenses to C-mount cameras\u003c\/li\u003e\n\u003cli\u003eEnables use of high-quality photographic lenses for astronomy\u003c\/li\u003e\n\u003cli\u003eIdeal for all-sky, meteor, and video astronomy applications\u003c\/li\u003e\n\u003cli\u003ePrecision-machined for a secure, light-tight connection\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\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eBaader C-Mount Nikon Adapter\u003c\/h2\u003e\n      \u003cp\u003eThe Baader C-Mount Nikon Adapter provides a robust, secure mechanical link between your Nikon F-mount photographic lenses and any astronomy camera equipped with a standard C-mount thread. This simple but essential adapter opens up new imaging possibilities by allowing you to repurpose high-quality camera lenses for specialized astronomical applications like meteor monitoring, all-sky imaging, or wide-field video astronomy.\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\u003eConnect Nikon F-Mount Lenses to C-Mount Cameras\u003c\/h3\u003e\n      \u003cp\u003eThis adapter is engineered to bridge two distinct optical standards: the bayonet F-mount of Nikon SLR\/DSLR lenses and the threaded C-mount common on guide cameras, planetary imagers, and industrial video cameras. By connecting the two, you can take advantage of the fast focal ratios and wide fields of view offered by photographic lenses, pairing them with the high sensitivity and specialized software support of modern astronomy cameras.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWide-Field Imaging:\u003c\/strong\u003e Use your favorite wide-angle or standard Nikon lenses to capture vast swaths of the night sky, perfect for creating time-lapses of the Milky Way or monitoring for meteor showers.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eVideo Astronomy:\u003c\/strong\u003e Pair a fast lens (e.g., 50mm f\/1.8) with a sensitive C-mount camera for near-real-time views of bright deep-sky objects like the Orion Nebula (M42) or the Andromeda Galaxy (M31).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eBuild Quality:\u003c\/strong\u003e The adapter is machined from metal for a rigid, non-flexing connection that maintains optical alignment and prevents stray light from entering the system.\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\"\u003eWhat is the primary function of the Baader C-Mount Nikon adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe Baader C-Mount Nikon adapter allows you to attach any lens with a standard \u003cstrong\u003eNikon F-mount\u003c\/strong\u003e to a camera that has a \u003cstrong\u003eC-mount\u003c\/strong\u003e threaded interface. This lets you use photographic lenses for astronomical imaging.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhich cameras are compatible with the Baader C-Mount Nikon adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter is compatible with any camera that uses a standard C-mount thread for its primary connection. This includes many popular guide cameras, some planetary cameras, and various industrial or security cameras often used for all-sky or meteor observation systems.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Baader C-Mount Nikon adapter to attach my Nikkor 50mm f\/1.8 lens to a ZWO ASI120MM Mini guide camera?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, absolutely. The ZWO ASI120MM Mini camera features a C-mount, and the Nikkor 50mm lens uses the Nikon F-mount. This adapter is designed for exactly this type of combination, turning your guide camera and lens into a powerful, wide-field imaging system.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Baader C-Mount Nikon adapter have any glass or optics inside it?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, this is a purely mechanical adapter. It contains no optical elements. It serves only to physically connect the lens to the camera body at the correct distance to achieve focus.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow would I use the Baader C-Mount Nikon adapter for a meteor camera setup?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eFor a meteor camera, you would typically pair a fast, wide-angle Nikon lens (e.g., a 14mm or 24mm) with a sensitive C-mount video camera using this adapter. The entire assembly would then be placed in a weatherproof housing and aimed at the sky to record continuously, capturing any meteors that pass through the field of view.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill I be able to control the aperture of my Nikon lens with this adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter provides a mechanical connection only. It does not have electronic contacts. You will only be able to use Nikon lenses that feature a \u003cstrong\u003emanual aperture ring\u003c\/strong\u003e to control the f-stop. Modern \"G-type\" lenses without an aperture ring will be fixed at their smallest aperture and are not ideal for use with this adapter.\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\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.08\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Adaptable\u003c\/td\u003e\n\u003ctd\u003eC-Mount\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eCamera Adapter, Expanding Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e29\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUsage\u003c\/td\u003e\n\u003ctd\u003eto connect DSLR camera lenses to video cameras or DMK video modules\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003e1\" Thread (C-Mount)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdaptable to\u003c\/td\u003e\n\u003ctd\u003eNikon lenses\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    \n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967301841181,"sku":"BAA-2958535","price":107.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-C-Mount-Nikon-1__71990.1597110561.1280.1280.jpg?v=1684340284"},{"product_id":"baader-c-mount-t-2-extension-ring","title":"Baader C-Mount\/T-2 Extension Ring","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects female 1\" C-mount threads to male T-2 threads\u003c\/li\u003e\n\u003cli\u003eAdapts industrial, scientific, and video cameras to astronomical accessories\u003c\/li\u003e\n\u003cli\u003eFunctions as a fixed-length extension ring for achieving correct spacing\u003c\/li\u003e\n\u003cli\u003eMachined for precise alignment and a secure, non-flexing connection\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\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eBaader C-Mount\/T-2 Extension Ring\u003c\/h2\u003e\n      \u003cp\u003eThe Baader C-Mount\/T-2 Extension Ring is a specialized adapter that integrates cameras and accessories using the 1-inch C-mount internal thread with the extensive T-2 (M42x0.75) system of astronomical hardware. This component acts as both a physical converter and a fixed extension, enabling the use of industrial, scientific, or security cameras in custom telescope imaging trains.\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\u003eBridge C-Mount Cameras to the T-2 Standard\u003c\/h3\u003e\n      \u003cp\u003eThis ring directly addresses a common connection challenge: mating a camera with female C-mount threads to an accessory with male T-2 threads. Its primary function is to establish a secure, standardized connection point, allowing you to incorporate C-mount cameras—often used in scientific, industrial, or video applications—into a conventional astronomical optical path with T-2 filter wheels, off-axis guiders, or spacers.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eA Critical Component for Custom Optical Trains\u003c\/h3\u003e\n      \u003cp\u003eBeyond simple adaptation, this component also acts as an extension tube, providing a fixed amount of spacing in an optical train. This is essential when you need to achieve the correct back focus for a reducer, flattener, or other optical corrector when using a C-mount camera. The rigid, threaded design ensures perfect alignment and stability, which is critical for maintaining image quality without flexure.\u003c\/p\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\"\u003eWhat is the primary use for the Baader C-Mount\/T-2 Extension Ring?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe primary use of the Baader C-Mount\/T-2 Extension Ring is to connect a camera with female \u003cstrong\u003eC-mount threads\u003c\/strong\u003e to an astronomical accessory (like a filter wheel or off-axis guider) that uses the male \u003cstrong\u003eT-2 thread\u003c\/strong\u003e standard. It both adapts the thread type and adds a fixed amount of extension.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhich devices typically use a C-mount thread that would need this Baader Extension Ring?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003e\u003cstrong\u003eC-mount threads\u003c\/strong\u003e are common on a variety of cameras outside of mainstream astronomy. This includes industrial machine-vision cameras, scientific cameras for microscopy, and some specialized high-frame-rate video cameras. This Baader adapter allows you to use these cameras on a telescope.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Baader C-Mount\/T-2 Extension Ring to connect a T-2 filter wheel to my C-mount planetary camera?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, this is an ideal application. If your planetary camera has female C-mount threads and your filter wheel has a male T-2 thread on the telescope side, this Baader ring will create the necessary physical connection between them.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this Baader adapter change the magnification or focal length?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, the Baader C-Mount\/T-2 Extension Ring is a purely mechanical adapter with no optical elements. It does not alter the magnification or focal length of your telescope system. It only changes the physical spacing.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the \"T-2\" thread on this Baader ring the same as a standard M42 camera lens mount?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, this is a common point of confusion. The \u003cstrong\u003eT-2 thread\u003c\/strong\u003e is M42x0.75 (a 0.75mm thread pitch). The standard \"M42\" or Pentax screw mount for camera lenses is M42x1.0 (a 1.0mm thread pitch). The two are not compatible, and attempting to force them together will damage the threads.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I know if I need this specific Baader extension ring?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYou need this Baader ring if you are trying to solve two problems at once: you must connect a female \u003cstrong\u003eC-mount\u003c\/strong\u003e port to a male \u003cstrong\u003eT-2 thread\u003c\/strong\u003e, AND you require a small, fixed amount of spacing to reach proper back focus. If you only need to adapt the threads without adding length, a different zero-profile adapter may be more suitable.\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\u003eInternal Thread\u003c\/td\u003e\n\u003ctd\u003e1\" C-Mount (Female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Thread\u003c\/td\u003e\n\u003ctd\u003eT-2 \/ M42x0.75 (Male)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eThread Adapter \u0026amp; Extension Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e24.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eCamera Adapter, Expanding Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e0-6\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\"\u003eBaader C-Mount\/T-2 Extension Ring\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Digiscoping_Camera_Adaptations_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Digiscoping Camera Adaptations Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_C-Mount_T-2_Extension_Ring_Dimensions_Drawing.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium C-Mount T-2 Extension Ring Dimensions Drawing\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967301972253,"sku":"BAA-2958521","price":49.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-C-Mount-T-2-Extension-Ring-1__84677.1597110562.1280.1280.jpg?v=1684340052"},{"product_id":"baader-1-c-mount-adapter-w-1-25-nosepiece-18mm-long","title":"Baader 1\" C-Mount Adapter w\/ 1.25\" Nosepiece - 18mm Long","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects C-Mount (1\") cameras to 1.25\" focusers\u003c\/li\u003e\n\u003cli\u003eAdds a fixed 18mm of optical length\u003c\/li\u003e\n\u003cli\u003eInternal threads accept standard 1.25\" mounted filters\u003c\/li\u003e\n\u003cli\u003eIncludes retainer ring for unmounted filters (27.5mm - 28mm)\u003c\/li\u003e\n\u003cli\u003eDurable, precision-machined Baader construction\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eBaader 1\" C-Mount Adapter w\/ 1.25\" Nosepiece - 18mm Long\u003c\/h2\u003e\n      \u003cp\u003eThe Baader 1\" C-Mount Adapter provides a secure, 18mm long connection between C-Mount cameras and standard 1.25\" focusers or accessories. It features internal threads for standard 1.25\" eyepiece filters and includes a retainer ring to mount unmounted filters between 27.5mm and 28mm in diameter.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eA Precise 18mm C-Mount to 1.25\" Connection\u003c\/h3\u003e\n      \u003cp\u003eThis adapter bridges the gap between the common C-Mount thread found on many guide, planetary, and video astronomy cameras and the universal 1.25\" format. Its fixed 18mm length provides a rigid, non-flexing extension, a critical factor when calculating the back focus for your imaging train. This specific length is often required to bring guide cameras to focus in off-axis guiders or to achieve the correct spacing for other accessories.\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\u003eIntegrated 1.25\" and 28mm Filter Compatibility\u003c\/h3\u003e\n      \u003cp\u003eA key feature of this Baader adapter is its built-in support for filters. The 1.25\" nosepiece is threaded to accept standard mounted M28.5 filters, allowing you to easily add a UV\/IR cut, narrowband, or color filter to your imaging setup. For more advanced applications, an included retainer ring allows for the secure installation of an unmounted filter with a diameter from 27.5mm to 28mm, saving precious back focus and reducing the optical length.\u003c\/p\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\"\u003eWhat is the primary use for the Baader 1\" C-Mount Adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe Baader 1\" C-Mount Adapter is designed to connect a camera with female C-Mount threads (a common standard for guide and planetary cameras) to a telescope's 1.25\" focuser, an off-axis guider, or any other accessory that accepts a 1.25\" nosepiece. It also adds a fixed \u003cstrong\u003e18mm\u003c\/strong\u003e of length to the optical path.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Baader 18mm C-Mount adapter with a ZWO ASI120MM Mini guide camera?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. The ZWO ASI120MM Mini and many similar guide cameras use a C-Mount thread. This adapter will allow you to insert the camera into a standard 1.25\" guide port or focuser. The \u003cstrong\u003e18mm\u003c\/strong\u003e length is often helpful for achieving focus in various off-axis guider models.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I install a filter with this Baader adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYou have two options. For a standard \u003cstrong\u003e1.25\" mounted filter\u003c\/strong\u003e, you simply screw it into the internal threads on the end of the 1.25\" nosepiece. To use an \u003cstrong\u003eunmounted filter (27.5mm - 28mm diameter)\u003c\/strong\u003e, you place the filter inside the adapter and secure it with the included retainer ring.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhy would I use an unmounted filter with the Baader C-Mount Adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eUsing an unmounted filter with the included retainer ring can save a few millimeters of back focus compared to threading a mounted filter onto the end. This can be critical in imaging trains with very tight spacing requirements. It's a specialized feature for optimizing your optical configuration.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill this Baader adapter work in a 2\" focuser?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, but you will need a \u003cstrong\u003e2\" to 1.25\" adapter\u003c\/strong\u003e. This Baader adapter has a 1.25\" nosepiece, so it will not fit directly into a 2\" focuser. You must use the appropriate step-down adapter, which typically comes standard with most 2\" focusers.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI need to add exactly 18mm of spacing for my C-Mount guider. Is this Baader adapter suitable?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, this is precisely what this adapter is for. The \u003cstrong\u003eBaader 1\" C-Mount Adapter w\/ 1.25\" Nosepiece\u003c\/strong\u003e provides a fixed, non-adjustable optical length of \u003cstrong\u003e18mm\u003c\/strong\u003e. It serves as both an adapter and a precision spacer.\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\u003eCamera-Side Connection\u003c\/td\u003e\n\u003ctd\u003eC-Mount (1\" x 32 TPI), Female\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope-Side Connection\u003c\/td\u003e\n\u003ctd\u003e1.25\" Nosepiece\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Length\u003c\/td\u003e\n\u003ctd\u003e18mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Thread\u003c\/td\u003e\n\u003ctd\u003e1.25\" (M28.5 x 0.6)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUnmounted Filter Support\u003c\/td\u003e\n\u003ctd\u003eYes, 27.5mm - 28mm diameter via included retainer ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eAstro T-2, UNC, Baader Planetarium, Celestron, Other\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e34\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eCamera Adapter, Expanding Adapter, Filter holder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM28.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eø 1¼\" (31.75 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n    \u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003e1\" C-Mount Adapter w\/ 1.25\" Nosepiece (18mm)\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\"\u003eRetainer Ring for Unmounted Filters\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\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967302005021,"sku":"BAA-2958515","price":57.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-1-inch-C-Mount-Adapter-with-1-25-inch-Nosepiece-18mm-Long-1__08277.1597110563.1280.1280.jpg?v=1684340057"},{"product_id":"baader-c-to-t-2-mount-w-integrated-filter-holder","title":"Baader C to T-2 Mount w\/ Integrated Filter Holder","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects C-Mount cameras to T-2 thread accessories\u003c\/li\u003e\n\u003cli\u003eIntegrated holder for a single filter\u003c\/li\u003e\n\u003cli\u003eAccepts both standard mounted and unmounted filters\u003c\/li\u003e\n\u003cli\u003eMinimizes backfocus consumption in compact imaging trains\u003c\/li\u003e\n\u003cli\u003ePrecision machined for a secure, light-tight fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader C to T-2 Mount w\/ Integrated Filter Holder\u003c\/h2\u003e\n\u003cp\u003eThe Baader C to T-2 Mount with Integrated Filter Holder is a specialized adapter designed to solve a common problem in astronomical imaging: adding a filter to a camera system with minimal backfocus. It provides a robust, direct connection between cameras using the C-mount standard and the vast ecosystem of T-2 (M42x0.75) threaded accessories, while incorporating a dedicated slot for a single filter.\u003c\/p\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 Minimal-Backfocus C-Mount to T-2 Solution\u003c\/h3\u003e\n\u003cp\u003eMany high-speed planetary, guide, and scientific cameras use a C-mount thread due to its compact form factor. However, these cameras often have very short backfocus requirements, making it difficult to insert a standard filter wheel or drawer. This Baader adapter integrates the filter holder directly into the C-to-T-2 converter, creating the shortest possible optical path for adding filtration.\u003c\/p\u003e\n\u003cp\u003eThis design is critical when using accessories like off-axis guiders or focal reducers that have strict spacing needs. By eliminating the need for a separate filter holder, you can maintain the correct spacing for your optical train while still employing essential filters like an IR\/UV cut or a narrowband filter for guiding.\u003c\/p\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 Holder: Accommodates Mounted \u0026amp; Unmounted Filters\u003c\/h3\u003e\n\u003cp\u003eThe key feature of this adapter is its versatile filter holder. It is engineered to accept not only standard mounted filters (like those in 1.25\" cells) but also unmounted filter glass. This flexibility allows imagers to use custom filters or to remove a filter from its cell to gain precious millimeters of backfocus.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnmounted Filter Use:\u003c\/strong\u003e The ability to secure raw filter glass is a professional feature that provides maximum flexibility for custom optical setups and space-constrained rigs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Fit:\u003c\/strong\u003e The holder ensures the filter is held securely and squarely to the optical axis, preventing tilt that could degrade image quality.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlease Note:\u003c\/strong\u003e No filter is included with this adapter. It is designed to house a filter you already own or purchase separately.\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 primary use for the Baader C to T-2 Mount w\/ Integrated Filter Holder?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary use is to connect a C-mount camera (common for planetary, guiding, or industrial video) to the standard T-2 (M42x0.75) thread used on most astronomical accessories, while simultaneously providing a slot for a single filter. It's a problem-solver for imaging trains where backfocus is too limited for a full filter wheel or drawer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this Baader adapter to add a methane filter for imaging Jupiter with a C-mount camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is an ideal application. It allows you to place a specialized filter, such as a methane band filter, into the light path of a high-frame-rate C-mount camera without adding the bulk and backfocus consumption of a larger filter holder. This helps maintain the shortest, most rigid imaging train possible for high-resolution planetary work.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does it mean that this Baader mount accepts 'unmounted' filters?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis means the adapter can securely hold a piece of raw filter glass that is not housed in a standard threaded cell. This is advantageous for advanced users who might have custom-sized filters or who need to minimize every fraction of a millimeter in their optical path by removing the filter from its housing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the Baader C to T-2 Mount come with any filters included?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, the adapter does not come with any filters. You must provide your own mounted or unmounted filter to place inside the integrated holder.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a guide camera with a C-mount. Can I use this adapter to add an IR-pass filter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. Using an IR-pass filter for guiding can help stabilize star shapes by focusing on longer, more stable wavelengths of light, especially in conditions of poor seeing. This adapter is a perfect way to add a dedicated IR-pass filter to your C-mount guide camera without complicating your setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this Baader adapter compare to using a separate C-to-T2 adapter and a filter drawer?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage of this integrated Baader adapter is its minimal consumption of backfocus. A separate C-to-T2 adapter plus a filter drawer or filter wheel will almost always be thicker and require more spacing. This integrated unit is the superior choice when your available backfocus is severely limited.\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\u003eCamera Side Connection\u003c\/td\u003e\n\u003ctd\u003eC-Mount (Female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Side Connection\u003c\/td\u003e\n\u003ctd\u003eT-2 (M42x0.75 Male)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Compatibility\u003c\/td\u003e\n\u003ctd\u003eMounted \u0026amp; Unmounted Filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Included\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.04\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eCamera Adapter, Expanding Adapter, Filter holder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e22.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003e1\" Thread (C-Mount)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM28.5, M42 x 0.75 (T-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\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader C to T-2 Mount w\/ Integrated Filter Holder\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Digiscoping_Camera_Adaptations_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Digiscoping Camera Adaptations Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967302037789,"sku":"BAA-2958520","price":63.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader-C-to-T-2-Mount-with-Integrated-Filter-Holder-1__31288.1597110565.1280.1280.jpg?v=1684340060"},{"product_id":"baader-dt-adapter-i-t-2-m37","title":"Baader DT Adapter I - T-2\/M37","description":"\u003c!-- more --\u003e\u003cul\u003e\n\u003cli\u003eT-2i \/ M37a.\u003c\/li\u003e\n\u003cli\u003eT-2 photo adaptor to connect T-rings (m37) to the Baader ADPS system.\u003c\/li\u003e\n\u003cli\u003eFor many Sony video cameras such . B .: Sony DSC S - 30 \/ S - 50 S - 70 \/ P - 30 \/ P - 50 \/ MVC - FD - 87 \/ CD - 200\/250.\u003c\/li\u003e\n\u003cli\u003eStandard connection for T-2 telescope thread for many compact standard cameras with M37 external thread.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967306723613,"sku":"BAA-2408165","price":41.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-DT-Adapter-I-T-2-M37-1__09343.1597110576.1280.1280.jpg?v=1684340131"},{"product_id":"baader-dt-adapter-ii-t-2-sp54","title":"Baader DT-Adapter II - T-2\/SP54","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects T-2 (M42x0.75) accessories to the Baader SP54 system\u003c\/li\u003e\n\u003cli\u003eAdapts to the M54 threads found on Baader Hyperion eyepieces\u003c\/li\u003e\n\u003cli\u003eEngineered for the shortest possible optical path in eyepiece projection\u003c\/li\u003e\n\u003cli\u003eEnables direct coupling of digital cameras for high-magnification imaging\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\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eBaader DT-Adapter II - T-2\/SP54\u003c\/h2\u003e\n      \u003cp\u003eThe Baader DT-Adapter II - T-2\/SP54 is the essential component for integrating the universal T-2 accessory system with Baader's SP54 (M54) standard, found on their Hyperion eyepieces. This digital T-adapter is specifically engineered to provide the shortest possible connection between a Hyperion eyepiece and a digital camera sensor for high-magnification eyepiece projection photography.\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\u003eBridging the Baader System: T-2 to SP54 Adaptation\u003c\/h3\u003e\n      \u003cp\u003eThis adapter solves a critical connection challenge by creating a robust, direct link between the two most common thread systems in the Baader ecosystem. It allows you to attach any accessory with a male T-2 thread—such as a camera-specific T-ring, off-axis guider, or filter wheel—directly to the female SP54 (M54) thread on a Baader Hyperion eyepiece. This transforms your high-power visual eyepiece into a capable imaging tool.\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\u003eOptimized for Eyepiece Projection: A Minimal-Path Design\u003c\/h3\u003e\n      \u003cp\u003eIn eyepiece projection, every millimeter of distance between the eyepiece and the camera sensor can introduce vignetting and degrade image sharpness. The DT-Adapter II is designed from the ground up to minimize this distance. By creating the most compact and rigid coupling possible, it ensures your camera's sensor is placed at the optimal focal point, preserving the image quality needed for detailed planetary, lunar, or solar imaging.\u003c\/p\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\"\u003eWhat is the primary use for the Baader DT-Adapter II - T-2\/SP54?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe Baader DT-Adapter II is used to connect accessories with a standard \u003cstrong\u003eT-2 (M42x0.75) thread\u003c\/strong\u003e to an eyepiece or other component that has a larger \u003cstrong\u003eSP54 (M54) thread\u003c\/strong\u003e. Its main application is for eyepiece projection photography, particularly with Baader Hyperion eyepieces.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhich eyepieces is the Baader DT-Adapter II - T-2\/SP54 designed for?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis adapter is specifically designed to work with eyepieces that feature the \u003cstrong\u003eBaader SP54 thread system\u003c\/strong\u003e, most notably the Baader Hyperion series. It allows you to convert the eyepiece's native M54 thread into a universal T-2 connection for imaging.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Baader DT-Adapter II help with eyepiece projection imaging?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe adapter is engineered to provide the \u003cstrong\u003eshortest possible optical path\u003c\/strong\u003e between the eyepiece and the camera. This is critical for minimizing vignetting (darkening of image corners) and maintaining the highest possible image sharpness by keeping the camera sensor close to the eyepiece's focal plane.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Baader DT-Adapter II to attach my Canon or Nikon DSLR to a Hyperion eyepiece?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, but you will need one additional component. The Baader DT-Adapter II provides the necessary T-2 thread on the eyepiece side. You must then add a camera-specific \u003cstrong\u003eT-Ring\u003c\/strong\u003e (e.g., a T-Ring for Canon EF mount) that threads onto the DT-Adapter and has the bayonet mount for your specific camera body.\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 T-2 and SP54 threads on the Baader DT-Adapter II?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThey are two different thread standards. \u003cstrong\u003eT-2 is the de-facto standard\u003c\/strong\u003e for astronomy accessories, with a metric M42x0.75 thread. \u003cstrong\u003eSP54 is a larger M54 thread\u003c\/strong\u003e used by Baader on their Hyperion eyepieces and other components to provide a wider, more rigid connection that avoids vignetting with large sensors.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is minimizing the optical path important when imaging the Moon with the Baader DT-Adapter II?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eWhen imaging a bright, high-contrast target like the Moon or Jupiter through eyepiece projection, maintaining sharpness is paramount. The minimal length of the Baader DT-Adapter II ensures that the projected image remains as flat and well-focused as possible across your camera's sensor. A longer, non-optimized connection can introduce optical aberrations and reduce the fine detail you can capture in craters and cloud bands.\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\u003eInput Connection\u003c\/td\u003e\n\u003ctd\u003eT-2 (M42x0.75) Male Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Connection\u003c\/td\u003e\n\u003ctd\u003eSP54 (M54) Female Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Application\u003c\/td\u003e\n\u003ctd\u003eEyepiece Projection with Hyperion Eyepieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eExpanding Adapter\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\"\u003eBaader DT-Adapter II - T-2\/SP54\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\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Digiscoping_Camera_Adaptations_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Digiscoping Camera Adaptations Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967306789149,"sku":"BAA-2458040","price":46.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-DT-Adapter-II-T-2-SP54-1__10070.1597110577.1280.1280.jpg?v=1684340132"},{"product_id":"baader-hyperion-dt-ring-sp54-m28","title":"Baader Hyperion DT-Ring - SP54\/M28","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects Baader SP54 threads to camera-side M28 threads\u003c\/li\u003e\n\u003cli\u003eEngineered for the shortest possible connection distance\u003c\/li\u003e\n\u003cli\u003eMinimizes vignetting in afocal camera setups\u003c\/li\u003e\n\u003cli\u003eIntegrates with the Baader Hyperion eyepiece system\u003c\/li\u003e\n\u003cli\u003eRequires Baader Hyperion Digital T-Adapter M43\/T-2 (#2958090) for use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Hyperion DT-Ring - SP54\/M28\u003c\/h2\u003e\n\u003cp\u003eThe Baader Hyperion DT-Ring SP54\/M28 creates a direct, rigid connection between the SP54 thread on the Hyperion eyepiece system and a camera's M28 filter thread. This adapter is purpose-built to achieve the shortest possible distance between the eyepiece and the camera lens, a critical factor for minimizing vignetting and maximizing image brightness in afocal photography setups.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSP54 to M28: The Direct-Thread Connection for Hyperion Eyepieces\u003c\/h3\u003e\n\u003cp\u003eThis DT-Ring is a key component for \"digiscoping\" with Baader Hyperion eyepieces. By threading directly to a camera's filter threads, it provides a more secure and precisely centered connection than universal clamp-on style adapters. The design's emphasis on minimal length ensures that the camera lens can be placed as close as possible to the eyepiece's exit pupil, preventing the clipped, keyhole-effect field of view that plagues longer adapters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eRequired Component: The Baader 2958090 Adapter\u003c\/h3\u003e\n\u003cp\u003eThis SP54\/M28 DT-Ring is part of a modular system and cannot be attached to a Hyperion eyepiece on its own. It is designed to thread onto the Baader Hyperion Digital T-Adapter M43\/T-2 (Baader #2958090), which must be purchased separately. That adapter provides the necessary female SP54 thread on the eyepiece side, allowing this DT-Ring to complete the connection to your camera.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the primary function of the Baader Hyperion SP54\/M28 DT-Ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts primary function is to connect a camera with a standard \u003cstrong\u003eM28 filter thread\u003c\/strong\u003e to a Baader Hyperion eyepiece for afocal photography (digiscoping). It is specifically designed to create the shortest possible physical connection to reduce vignetting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is the 'shortest distance' important when using the Hyperion SP54\/M28 DT-Ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn afocal imaging, any extra distance between the eyepiece and the camera lens can cause significant vignetting, where the edges of the image appear dark or clipped. By minimizing this distance, the \u003cstrong\u003eSP54\/M28 DT-Ring\u003c\/strong\u003e helps ensure the camera's sensor is fully illuminated by the light from the eyepiece, resulting in a complete, brighter field of view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Baader Hyperion SP54\/M28 DT-Ring by itself?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This is a critical point. The \u003cstrong\u003eSP54\/M28 DT-Ring\u003c\/strong\u003e must be threaded onto the \u003cstrong\u003eBaader Hyperion Digital T-Adapter M43\/T-2 (part #2958090)\u003c\/strong\u003e, which is sold separately. The #2958090 adapter is the piece that actually attaches to the Hyperion eyepiece and provides the SP54 thread this ring needs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of camera connects to the M28 thread on this DT-Ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eM28 thread\u003c\/strong\u003e is a common filter thread size on many point-and-shoot digital cameras and some dedicated video cameras. You should check the filter thread specification of your camera lens to confirm compatibility before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI want to image the Moon with my 13mm Hyperion eyepiece and a point-and-shoot camera. Is the SP54\/M28 DT-Ring the right part?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is part of the correct solution, provided your camera has an \u003cstrong\u003eM28 filter thread\u003c\/strong\u003e. You will need two Baader parts: the Hyperion Digital T-Adapter (#2958090) to attach to your 13mm Hyperion, and this SP54\/M28 DT-Ring to thread onto the adapter and connect to your camera.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I attach the Baader Hyperion SP54\/M28 DT-Ring to my Hyperion eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou do not attach it directly. First, you must attach the Baader #2958090 adapter to the top of the Hyperion eyepiece. Then, this \u003cstrong\u003eSP54\/M28 DT-Ring\u003c\/strong\u003e threads onto the male SP54 thread of that adapter, providing the final M28 connection for your camera.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eAfocal Camera Adapter Ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Side Thread\u003c\/td\u003e\n\u003ctd\u003eSP54 (Female)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Side Thread\u003c\/td\u003e\n\u003ctd\u003eM28 (Male)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eBaader Hyperion Eyepieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRequired Accessory\u003c\/td\u003e\n\u003ctd\u003eBaader #2958090 Digital T-Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium, Other\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e57\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eReducing Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUsage\u003c\/td\u003e\n\u003ctd\u003efor the DSLR 2\" filter holder and direct connection on all Hyperion 68° eyepieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdaptable to\u003c\/td\u003e\n\u003ctd\u003eDTAdapter II\u0026amp;III and Hyperion eyepieces. Fits also onto Morpheus® 76° eyepieces (in combination with #2458040 and #2958080)\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\"\u003eHyperion DT-Ring SP54\/M28\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Digiscoping_Camera_Adaptations_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Digiscoping Camera Adaptations Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Hyperion_Eyepieces_Application_Examples.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Hyperion Eyepieces Application Examples\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967306821917,"sku":"BAA-2958028","price":28.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Hyperion-DT-Ring-SP54-M28-1__03168.1597110578.1280.1280.jpg?v=1684340136"},{"product_id":"baader-hyperion-dt-ring-sp54-m37","title":"Baader Hyperion DT-Ring - SP54\/M37","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects SP54 eyepiece threads to M37 camera filter threads\u003c\/li\u003e\n\u003cli\u003eEngineered for the shortest possible distance in afocal photography\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for the Baader Hyperion eyepiece series\u003c\/li\u003e\n\u003cli\u003ePart of the modular Baader Hyperion Digital T-Adapter (DT) system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Hyperion DT-Ring - SP54\/M37\u003c\/h2\u003e\n\u003cp\u003eThe Baader Hyperion DT-Ring SP54\/M37 is a specialized adapter designed for afocal photography, creating a rigid, precisely-spaced connection between a Baader Hyperion eyepiece and a camera with M37 filter threads. Its design is optimized to place the camera's objective lens as close as possible to the eyepiece's eye lens, a critical factor for minimizing vignetting and achieving a fully illuminated image field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eOptimized for Afocal Imaging with Hyperion Eyepieces\u003c\/h3\u003e\n\u003cp\u003eIn afocal imaging, also known as digiscoping, the goal is to project the image from the eyepiece directly into the camera's lens. The distance between these two optical elements is the most critical variable. If the spacing is too great, the edges of your image will be darkened or completely cut off—an effect called vignetting. This DT-Ring is machined to provide the minimal spacing required for this application, ensuring your camera captures the widest, brightest possible field of view that your Hyperion eyepiece can deliver.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eBuilding the Baader DT-Adapter System\u003c\/h3\u003e\n\u003cp\u003eThis SP54\/M37 ring is a component within the larger, modular Baader DT-Adapter system. It is not a standalone adapter. To use it, you must first have the Baader Hyperion Digital T-Adapter (DT-Adapter) M43\/T-2 (Baader #2958090). This DT-Ring threads securely onto that base adapter, converting its standard thread to the specific M37 thread required by your camera. This modularity allows you to adapt the same base system to a variety of cameras simply by changing the DT-Ring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the primary purpose of the Baader Hyperion DT-Ring SP54\/M37?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Baader Hyperion DT-Ring SP54\/M37 is designed for \u003cstrong\u003eafocal photography (digiscoping)\u003c\/strong\u003e. It connects a camera with an M37 filter thread to a Baader Hyperion eyepiece, ensuring the shortest possible distance between the two to prevent vignetting and maximize image brightness.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need other parts to use the Baader SP54\/M37 DT-Ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e This is a modular component, not a standalone adapter. You must attach it to the \u003cstrong\u003eBaader Hyperion Digital T-Adapter (DT-Adapter) M43\/T-2 (part #2958090)\u003c\/strong\u003e, which in turn threads onto the M43 thread of a Baader Hyperion eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich eyepieces is the Baader SP54\/M37 DT-Ring compatible with?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis ring is designed to work with the \u003cstrong\u003eBaader Hyperion series of eyepieces\u003c\/strong\u003e when used in conjunction with the required DT-Adapter base (part #2958090). The SP54 side of the ring mates with the DT-Adapter base.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is minimizing spacing so important for imaging with my Hyperion eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn afocal imaging, the camera's lens needs to capture the entire beam of light exiting the eyepiece (the exit pupil). The farther the camera is from the eyepiece, the more likely it is that the edges of this light cone will be blocked by the camera's lens housing, causing dark corners or a circular vignette in your photos. This Baader ring provides the tightest possible coupling to avoid this issue.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow would I use the Baader SP54\/M37 DT-Ring to connect my point-and-shoot camera to a telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFirst, you would thread your Baader Hyperion eyepiece into your telescope's focuser. Second, attach the Baader DT-Adapter base (#2958090) to the eyepiece's M43 thread. Third, screw this SP54\/M37 DT-Ring onto the DT-Adapter base. Finally, you can thread your point-and-shoot camera, assuming it has a native M37 filter thread, directly onto this ring for a secure connection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this Baader DT-Ring to attach my DSLR for prime-focus astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This is an adapter for \u003cstrong\u003eafocal photography\u003c\/strong\u003e, which means imaging *through* an eyepiece with the camera's lens attached. It is not designed for prime-focus astrophotography, where the camera body attaches directly to the telescope without an eyepiece or camera lens.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium, Other\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e57\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eReducing Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUsage\u003c\/td\u003e\n\u003ctd\u003efor the DSLR 2\" filter holder and direct connection on all Hyperion 68° eyepieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eSP54\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM37\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdaptable to\u003c\/td\u003e\n\u003ctd\u003eDTAdapter II\u0026amp;III and Hyperion eyepieces. Fits also onto Morpheus® 76° eyepieces (in combination with #2458040 and #2958080)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapters Family\u003c\/td\u003e\n\u003ctd\u003eSP54 System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Hyperion_Eyepieces_Application_Examples.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Hyperion Eyepieces Application Examples\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Digiscoping_Camera_Adaptations_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Digiscoping Camera Adaptations Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967306854685,"sku":"BAA-2958037","price":28.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Hyperion-DT-Ring-SP54-M37-1__99368.1597110579.1280.1280.jpg?v=1684340141"},{"product_id":"baader-hyperion-dt-ring-sp54-m43","title":"Baader Hyperion DT-Ring - SP54\/M43","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eConnects Baader Hyperion Eyepieces to M43 Camera Threads\u003c\/li\u003e\n\u003cli\u003eSP54 Female Thread for Eyepiece Connection\u003c\/li\u003e\n\u003cli\u003eM43 Male Thread for Camera Lens Connection\u003c\/li\u003e\n\u003cli\u003eEngineered for Minimal Distance to Reduce Vignetting\u003c\/li\u003e\n\u003cli\u003eEnables High-Magnification Afocal Photography (Digiscoping)\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\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section-center\"\u003e\n      \u003ch2\u003eBaader Hyperion DT-Ring - SP54\/M43\u003c\/h2\u003e\n      \u003cp\u003eThe Baader Hyperion DT-Ring SP54\/M43 creates the essential, rigid connection between Baader's Hyperion eyepieces and camera lenses that feature a standard M43 filter thread. This adapter is specifically engineered to achieve the shortest possible distance between the eyepiece's exit lens and the camera's objective lens, which is the critical factor in successful afocal photography.\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\u003eOptimized for Minimum Distance: Eliminating Vignetting in Afocal Imaging\u003c\/h3\u003e\n      \u003cp\u003eIn afocal imaging, also known as digiscoping, any excess space between the eyepiece and the camera lens can cause severe vignetting, where the corners of your image become dark or completely black. The Hyperion DT-Ring is designed to minimize this gap, ensuring the light cone from the eyepiece properly illuminates the camera's sensor for bright, evenly-lit images across the entire field.\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\u003eConnecting Your Gear: The SP54 and M43 Standard Explained\u003c\/h3\u003e\n      \u003cp\u003eThis adapter serves as a precise thread converter. The female SP54 thread attaches directly to the M54 thread on the top of a Baader Hyperion eyepiece (once the rubber eyecup is removed), while the male M43 thread screws into the filter threads on the front of your camera lens. This creates a secure, non-flexing link that maintains perfect optical alignment for sharp, high-magnification shots of the Moon, planets, or terrestrial subjects.\u003c\/p\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\"\u003eWhat is the primary function of the Baader Hyperion DT-Ring SP54\/M43?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe Baader Hyperion DT-Ring SP54\/M43 is designed for \u003cstrong\u003eafocal photography (digiscoping)\u003c\/strong\u003e. It physically connects a Baader Hyperion eyepiece to a camera lens that has a 43mm (M43) filter thread, creating a secure connection for taking pictures through the eyepiece.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhich eyepieces are compatible with this Baader DT-Ring?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis ring is designed specifically for the \u003cstrong\u003eBaader Planetarium Hyperion eyepiece series\u003c\/strong\u003e. It attaches to the SP54 thread found on the top of these eyepieces after the original rubber eyeguard has been removed.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of camera can I connect with the M43 thread on this DT-Ring?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe M43 male thread is designed to screw into the \u003cstrong\u003efront filter thread of a camera lens\u003c\/strong\u003e. You need to ensure your camera's lens has a 43mm filter diameter. This is common on some Micro Four Thirds kit lenses and other compact camera systems. It is not a direct connection to a camera body.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is the short design of the Baader Hyperion DT-Ring important?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eA short connection is critical to prevent \u003cstrong\u003evignetting\u003c\/strong\u003e, which is the darkening of the corners of an image. By minimizing the distance between the eyepiece's last lens and the camera's front lens, the DT-ring ensures the entire camera sensor is illuminated by the light coming from the eyepiece.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I attach the SP54\/M43 ring to my Baader Hyperion eyepiece?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eFirst, unscrew and remove the rubber eyecup assembly from the top of your Hyperion eyepiece. This will expose the male SP54 threads. You can then screw the female SP54 side of the DT-Ring directly onto these threads until it is snug.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this Baader DT-Ring to connect my DSLR with a 52mm lens to a Hyperion eyepiece?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, not directly. This adapter has M43 threads. To connect a lens with a 52mm filter thread, you would need a separate \u003cstrong\u003estep-down ring (52mm to 43mm)\u003c\/strong\u003e, placed between this DT-Ring and your camera lens. However, adding more adapters increases the risk of vignetting.\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\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium, Other\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e57\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eReducing Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUsage\u003c\/td\u003e\n\u003ctd\u003efor the DSLR 2\" filter holder and direct connection on all Hyperion 68° eyepieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eSP54\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdaptable to\u003c\/td\u003e\n\u003ctd\u003eDTAdapter II\u0026amp;III and Hyperion eyepieces. Fits also onto Morpheus® 76° eyepieces (in combination with #2458040 and #2958080)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapters Family\u003c\/td\u003e\n\u003ctd\u003eSP54 System\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    \n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Digiscoping_Camera_Adaptations_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Digiscoping Camera Adaptations Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967306952989,"sku":"BAA-2958043","price":28.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Hyperion-DT-Ring-SP54-M43-1__76627.1597110579.1280.1280.jpg?v=1684340145"},{"product_id":"baader-hyperion-dt-ring-sp54-m46","title":"Baader Hyperion DT-Ring - SP54\/M46","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts Baader Hyperion Eyepieces with SP54 threads\u003c\/li\u003e\n\u003cli\u003eProvides a male M46 thread for camera connection\u003c\/li\u003e\n\u003cli\u003eEngineered for afocal photography (digiscoping)\u003c\/li\u003e\n\u003cli\u003eMinimizes eyepiece-to-camera lens distance to prevent vignetting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eBaader Hyperion DT-Ring - SP54\/M46\u003c\/h2\u003e\n\u003cp\u003eThe Baader Hyperion DT-Ring SP54\/M46 directly connects Hyperion eyepieces featuring an external SP54 thread to camera-specific adapters that use an M46 filter thread. This dedicated SP54 to M46 ring is precisely machined to create the shortest possible physical distance between the eyepiece's rear lens and the camera's objective lens, a critical factor for successful afocal imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eSP54\/M46 Threads for Close-Coupled Digiscoping\u003c\/h3\u003e\n\u003cp\u003eIn afocal photography, or digiscoping, any excess space between the eyepiece and camera can introduce vignetting, which darkens the corners of your images. The Hyperion DT-Ring SP54\/M46 is designed specifically to eliminate this gap. By ensuring a tight, close-coupled connection, it allows your camera to capture the eyepiece's fully illuminated field of view for bright, sharp images across the entire frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the Baader Hyperion DT-Ring SP54\/M46?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Hyperion DT-Ring SP54\/M46 is a specialized adapter for afocal photography. It connects a Baader Hyperion eyepiece to a camera adapter, ensuring the closest possible spacing between the optics to prevent vignetting and maximize image brightness.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich eyepieces are compatible with the Hyperion DT-Ring SP54\/M46?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis ring is designed specifically for \u003cstrong\u003eBaader Planetarium Hyperion eyepieces\u003c\/strong\u003e that feature the necessary external SP54 thread system for accessory attachment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is minimizing distance important when using the Hyperion DT-Ring SP54\/M46?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eMinimizing the distance between the eyepiece and the camera lens is crucial to prevent \u003cstrong\u003evignetting\u003c\/strong\u003e (darkening of the image corners). The close coupling achieved by the DT-Ring ensures the camera's sensor is fully illuminated by the light cone exiting the eyepiece, resulting in a complete, evenly lit image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I use the Baader Hyperion DT-Ring SP54\/M46 to photograph the Moon's craters?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eTo photograph an object like the Moon, you would first thread the SP54 side of the DT-ring onto your Hyperion eyepiece. Then, you would attach a separate camera adapter with a corresponding female M46 thread to the other side of the ring. This setup creates a solid, secure mechanical connection for your camera, ready for afocal imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Hyperion DT-Ring SP54\/M46 to connect a DSLR camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, but it is only one part of the required adapter chain. You would thread the DT-Ring onto your Hyperion eyepiece, then you would need an additional adapter that steps down from the M46 thread to the T2-thread (M42x0.75) required by your DSLR's specific T-Ring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat do SP54 and M46 refer to on the Hyperion DT-Ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThese are thread specifications. \u003cstrong\u003eSP54\u003c\/strong\u003e refers to the specific 54mm thread system used on Baader Hyperion eyepieces. \u003cstrong\u003eM46\u003c\/strong\u003e refers to a standard metric 46mm thread (with a 0.75mm pitch), commonly used for camera filters and step-up\/step-down rings in photography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Brands\u003c\/td\u003e\n\u003ctd\u003eBaader Planetarium, Other\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e43\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter\u003c\/td\u003e\n\u003ctd\u003e57\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType of Adapter\u003c\/td\u003e\n\u003ctd\u003eReducing Adapter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical length (mm)\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUsage\u003c\/td\u003e\n\u003ctd\u003efor the DSLR 2\" filter holder and direct connection on all Hyperion 68° eyepieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Connection (eyepiece\/-camera-sided)\u003c\/td\u003e\n\u003ctd\u003eSP54\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Connection (lens sided)\u003c\/td\u003e\n\u003ctd\u003eM46\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdaptable to\u003c\/td\u003e\n\u003ctd\u003eDTAdapter II\u0026amp;III and Hyperion eyepieces. Fits also onto Morpheus® 76° eyepieces (in combination with #2458040 and #2958080)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapters Family\u003c\/td\u003e\n\u003ctd\u003eSP54 System\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_Hyperion_Eyepieces_Application_Examples.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium Hyperion Eyepieces Application Examples\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"Default Title","offer_id":44967306985757,"sku":"BAA-2958046","price":28.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Baader-Hyperion-DT-Ring-SP54-M46-1__00361.1597110580.1280.1280.jpg?v=1684340149"}],"url":"https:\/\/davidastro.com\/collections\/imaging-adapters.oembed?page=11","provider":"David Astro","version":"1.0","type":"link"}