Replacement for TRing Adapter for Canon EOS cameras including 5D, 5D Mark II, 50D, 60D, 20D, 30D, 40D, 350D, 400D, 450D, 500D, 550D, 600D, 1100D, 1D, T4KI, Rebeliii1 T3i, T2i, T1I, XT, XTI, XSI, XS and all Reflex cameras. Function The telescope adapter ring uses material and precision processing to provide a reliable connection between your camera and a telescope. Telescope Mount Adapter connects the camera to a telescope with a 1.25inch diameter eyepiece, corresponding to a 31.7 mm diameter. Why you need it Enables direct cameratotelescope imaging, allowing you to frame and shoot through the telescope without recentering, which helps you capture subjects that are in the frame and reduces blur. Supports immediate setup for astrophotography or telephoto work with a telescope as the imaging lens. What you get Includes a Tring for the camera and a 1.25 to M42 Tcoupling. The inner ring can be rotated to keep the assembly stable and to reduce vibrations, improving overall image stability. Use scenarios Scenario 1: Astronomy photography with a DSLR. Attach the adapter to your camera, mount to a telescope, and capture sharp images of the moon, planets, or deep sky objects with minimal framing adjustments. Scenario 2: Long focal length terrestrial imaging. Use the cameratelescope setup to photograph distant landscapes, wildlife, or architectural details where standard lenses reach their limit. Scenario 3: Field demonstrations and quick setup. In the field, connect the camera to the telescope quickly, frame the subject through the telescope, and begin shooting without lengthy reconfiguration, achieving stable, clear images. Compatibility and compatibility notes Compatible with Canon EOS models listed above and all Reflex cameras. This adapter is designed to work as a replacement TRing Adapter for these cameras when used with a telescope of 1.25inch eyepiece interface. Built for stability and reliability Precision machined and assembled to minimize wobble and vibration. Rotating inner ring provides a stable connection to keep the lens alignment consistent during use. Performance highlights Simple, direct integration between camera and telescope. Supports quick switching between framing through the telescope and standard autofocus or manual operation as permitted by the camera and telescope combination. Enhances image sharpness by reducing vibrations through a secure, rotatable inner ring and stable attachment. Note Please verify that your telescope and camera combination uses a 1.25inch eyepiece interface and that your camera supports a Tring connection with an M42 coupling.