Orion 5340 1.25-Inch Universal Camera Adapter;

The 1.25" Universal Camera Adapter allows attachment of a camera body to reflector and refractor telescopes for either prime-focus or eyepiece-projection photography (hence the term universal). The adapter slides into the eyepiece holder as an eyepiece normally would. This universal adapter is composed of two detachable parts: a prime-focus adapter (or T-adapter) for prime-focus photography, and a fixed-length or variable extension tube for eyepiece-projection photography. A thumbscrew in the extension tube holds the telescope eyepiece in place. This combination of prime-focus and eyepiece-projection camera adapter has a non-variable barrel design that allows a fixed projection distance for eyepiece-projection photography. Fits reflector and refractor telescopes with 1.25" telescope eyepiece holders. This Standard Universal Camera Adapter is precision made of black-anodized aluminum and is compatible with 1.25" telescope focusers and many 1.25" telescope eyepieces (some eyepieces have housing diameters that are too large to fit inside the adapter). The barrel of the adapter is threaded for filters. A T-ring for your specific camera model (sold separately) is required to couple your camera body to the universal adapter.