Hi I purchased a ZWO AF and a C11 Adapter kit for my Celestron Nextstar 11 GPS. the insidediameter of the focus adapter is a little small, I measured it at 22.34mm and the shaft on the scope focuser knob is 23.16 do you have one that fits correctly or should I have this machined to 23.25 mm or so?
Thank You
Chuck Bigbie
