A T-ring is one of the first accessories you need when you want to take pictures through a telescope or spotting scope. The telescope side of the T-ring has threads that can accommodate a variety of camera adapters, including Celestron T-adapters or Tele-Extender. The # 93633-AT adapter is the best choice if you have a Schmidt-Cassegrain telescope with standard rear cell thread.
TS - Adapter of the standard T-2 thread (M-42 x 0.75) on 2" The adapter allows connecting 2" accessories to devices or adapters with T2 connection: - Telephoto lenses - Focusers with T2-thread - Adapters with male T2-thread The adaptor can easily be screwed onto any T2 male thread. The 2" accessory is clamped via a brass compression ring and thus over a large area, thus pressure marks or tilting are avoided.