[MarkInSpace (Mark)]

Hi
I have a skyrover 115mm refractor and the sky rover flattener. I’ve just installed a brand new asi2600m camera and I am having lots of difficulty achieving a flat field and focus.
I have attached a photo taken at 55mm back focus and the photo looks like it needs more back focus, however I am at the lower limit of the focuser and when I add extra back focus the camera will not focus.
What can I do?
Does anyone have experience with this telescope? Is there a way of bringing the focuser closer to the front lens?
I am really stuck! I didn’t have the same problem with my old asi294mc, maybe because of the smaller chip size?
Any suggestions who could help me with this?
Cheers
Mark