QHYCCD

decreasing back focus on a QHY5L-ll

decreasing back focus on a QHY5L-ll
« on: April 09, 2021, 02:53:42 PM »
The standard back focus is 17.5mm. I need to reduce that considerably. Does anyone know if the front of the camera (black section) can be removed to shorten the back focus to less than 6mm.
Richard
Astrophotography, The final frontier