Is this adapter the one I need to use 2" eyepiece in SCT Celestron 9.25"?
This adapter has standard SCT threads which will attach to any Celestron or Meade, 8 to 10 inch telescope. I use this on my 9.25 to place a camera with a 2" t-adapter straight into the optical path. A 2" eyepiece can be used directly, a 1.25" eyepiece inserted into a 2" adapter or a 2" diagonal with a 2" eyepiece. This part also places a camera the correct distance from a .63 reducer to a camera image plane with the .63 reducer screwed directly to the telescope and the long adapter screwed onto the back of the .63 reducer.