Teleskop Service Geoptik Adapter for EOS to T2 Thread w/ 0.25-inch Tripod Foot

Teleskop Service Geoptik Adapter for Canon EOS Lenses to T2 Thread w/ 0.25" Tripod Foot Connect most CCD camera models with all Canon EOS lenses as well as lenses compatible with the Canon EOS bayonet that have been manufactured by other companies with this Geoptik adapter. Modifies EOS into standard T2 thread. Using the 0.25" thread at the base of this adapter, this system can be adhered to a camera tripod or piggybacked onto a telescope. This adapter has an effective optical length of 19mm, leaving an adequate amount of back focus for nearly all CCD cameras and C-Mount cameras. Most of these cameras only necessitate 12-19mm of back focus. An appropriate T2 extension tube may need to be employed between the camera and this adapter to achieve ideal distance between the lens and the camera. Teleskop Service Geoptik Adapter for EOS to T2 Thread w/ 0.25" Tripod Foot Specifications...   Canon EOS bayonet with locking ring T2 male thread (M42 x 0.75) 19 mm effective optical length (does n