I've improved my focus options by doing some turning on an old 2" to 1.25" eyepiece adaptor. I bored out the back to fit the fllange of the camera adaptor down inside it (the back of the camera housing is flush against the back of the 2" fitting) and I also reduced the thickness of the flange on the back of the 2" to 1.25" adaptor to allow it to go further into the focusser. Possibly overkill but that gives more range with the focusser.
Bob
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