A T-Ring is one of the first accessories you will need to take pictures through a telescope or spotting scope. If you have a Canon EOS M mirrorless camera body, the Celestron EOS M-Mount T-Ring is the precise solution for your setup.
How to Use
To use this T-Ring, place the M-Mount T-Ring on your Canon mirrorless camera. Just like changing a lens, line up the T-Ring to your camera’s lens mount. Push it in and turn until you hear a click. The T-Ring has a sturdy bayonet flange that locks for a secure fit. Once you attach the T-Ring to your camera, you’re ready to connect your telescope. The telescope side of the T-Ring has threads that accept a variety of camera adapters, including the Celestron T-Adapter. The adapter you choose depends on the type of photography you wish to do.
Body & Build Quality
The Canon M-Mount 42mm T-Ring is machined aluminum black anodized. The internal surfaces are blackened and glare-threaded to provide the highest contrast. The T-Ring has a ribbed surface for a secure grip while threading/unthreading. The Canon M-Mount 42mm T-Ring is compatible with M42 x 0.75 (T-Thread) camera adapters.
Terrestrial and Celestial Imaging
Pair your T-Ring with a Celestron T-Adapter to turn your telescope or spotting scope into a large telephoto lens. Depending on the optics you own, pair your M-Mount T-Ring with these adapters:
| Optics | T-Adapter to Pair with the M-Mount |
|---|---|
| Spotting Scope* | Universal T-Adapter - 1.25" |
| Schmidt-Cassegrain Telescope | T-Adapter for Schmidt-Cassegrain Telescopes |
| Refractor Telescope | Universal T-Adapter - 1.25" |
| Newtonian Reflector Telescope | Universal Barlow and T-Adapter - 1.25" |
| NexStar 4SE | T-Adapter, NexStar 4SE |
| EdgeHD (8") | T-Adapter (EdgeHD 8) |
| EdgeHD (9.25", 11", 14") | T-Adapter (EdgeHD 925, 11 & 14) |
* Please reference specific product pages for compatibility.
General Specifications
| Thread: | M42 x 0.75 |
|---|---|
| Camera Mount Compatibility: | Canon M-mount for mirrorless cameras |
| Construction Material: | Aluminum black anodized |
| Outside Diameter: | 65 mm (2.56 in) |
| Thickness from Flange: | 10 mm (0.39 in) |
| Weight: | 50 g (1.76 oz) |