QHYCCD

Astronomy Equipment => Astronomy equipment Discussion board => Topic started by: rwillits on April 09, 2021, 02:53:42 PM

Title: decreasing back focus on a QHY5L-ll
Post by: rwillits 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.