{"product_id":"shelyak-ba0023","title":"Shelyak Adapter Ring for Canon EOS to T-Mount (M42x0.75)","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eAdapts Canon EOS (EF\/EF-S) camera bodies to the standard T-mount\u003c\/li\u003e\n\u003cli\u003eProvides female M42x0.75 T-threads for secure connections\u003c\/li\u003e\n\u003cli\u003eEnables prime-focus astrophotography through a telescope\u003c\/li\u003e\n\u003cli\u003eEssential for connecting to T-threaded flatteners, reducers, and filter wheels\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\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\u003eAdapter Ring for Canon EOS to T-Mount (M42x0.75)\u003c\/h2\u003e\n      \u003cp\u003eThis adapter ring is the fundamental link for attaching a Canon EOS camera body to virtually any telescope for prime-focus astrophotography, providing a solid connection via the universal M42x0.75 T-thread standard. By replacing your camera's lens, this adapter converts the camera's bayonet mount into a female M42x0.75 threaded interface, allowing direct coupling to your imaging train.\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 Canon EOS Cameras to M42x0.75 T-Thread Accessories\u003c\/h3\u003e\n      \u003cp\u003eThe M42x0.75 thread, commonly known as the T-thread or T-mount, is the industry standard for astronomical accessories. This adapter allows you to securely attach your Canon DSLR or mirrorless camera body to a telescope's focuser (using a separate T-to-1.25\" or T-to-2\" nosepiece), a field flattener, a coma corrector, an off-axis guider, or a filter wheel.\u003c\/p\u003e\n      \u003cp\u003eThis direct, threaded connection is far more secure than eyepiece projection methods, eliminating flexure and ensuring the camera sensor remains perfectly parallel to the focal plane. It is the essential first piece required to begin imaging the night sky with a Canon EOS camera through a telescope.\u003c\/p\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 this Adapter ring EOS \/ T-mount?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIts primary function is to allow you to attach a \u003cstrong\u003eCanon EOS DSLR or mirrorless camera body\u003c\/strong\u003e to any telescope or accessory that uses the standard \u003cstrong\u003eM42x0.75 T-thread\u003c\/strong\u003e. This enables prime-focus astrophotography by placing your camera's sensor at the telescope's focal point.\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 attach my Canon EOS Rebel to my 8\" SCT for imaging Jupiter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e You would attach this adapter ring to your Canon Rebel body in place of the lens. Then, you would typically thread the camera onto a separate SCT T-Adapter, which screws onto the rear cell of your telescope. This places your camera's sensor at the correct position to capture a focused image of Jupiter.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill autofocus and electronic aperture control work with this EOS \/ T-mount 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 and does not have any electronic contacts. It cannot pass power or data between the camera body and the telescope. You must use your camera in full \u003cstrong\u003eManual (M) mode\u003c\/strong\u003e for both focusing and exposure control.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat accessories besides a telescope use the M42x0.75 T-mount thread?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe M42x0.75 T-thread is a universal standard in astronomy. You can use this adapter to connect your Canon EOS camera to a wide range of imaging accessories, including:\u003c\/p\u003e\n    \u003cul\u003e\n    \u003cli\u003eFilter wheels and filter drawers\u003c\/li\u003e\n    \u003cli\u003eOff-axis guiders (OAGs)\u003c\/li\u003e\n    \u003cli\u003eField flatteners and focal reducers\u003c\/li\u003e\n    \u003cli\u003eComa correctors\u003c\/li\u003e\n    \u003cli\u003eExtension tubes for adjusting back focus\u003c\/li\u003e\n    \u003c\/ul\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 (EF) and crop-sensor (EF-S) Canon EOS cameras?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e The physical bayonet mount is identical on both full-frame (e.g., Canon 5D, 6D, Ra) and crop-sensor APS-C (e.g., Canon Rebel series, 90D, 7D) camera bodies. This adapter will securely fit all Canon EOS DSLRs. It will also fit Canon EOS R-series mirrorless cameras when used with the standard Canon EF-EOS R mount adapter.\u003c\/p\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 to a 2\" focuser using this adapter?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e This adapter provides the T-threads on your camera body. To connect to a 2\" focuser, you will also need a separate \"2-inch prime focus adapter.\" This is a simple barrel with male T-threads on one end (which screw into this adapter) and a 2-inch nosepiece on the other end that slides into your telescope's focuser.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003c\/ul\u003e","brand":"Shelyak","offers":[{"title":"Default Title","offer_id":52943026520349,"sku":"SHK-BA0023","price":313.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Shelyak-Adapter-ring-EOS-T-mount-1_f233299b-7662-44cb-ab7b-33777ac934cf.jpg?v=1789615793","url":"https:\/\/davidastro.com\/fr\/products\/shelyak-ba0023","provider":"David Astro","version":"1.0","type":"link"}