I have a DMK camera from The Imaging source, and now an Orion filter wheel. The filter wheel has an "eyepiece adaptor" and a "camera adaptor". However, the camera adaptor doesn't fit in the camera, so I just put eyepiece adaptor and used the camera with its 1.25" piece.

Unfortunately, when I combined it with the f/3.3 focal reducer, the camera was so distant that I couldn't focus anymore.

Does anyone here know this combination, and how to solve it? Is there a shorter adaptor so I can use it with the "camera adaptor" of the wheel?