Hi everyone. I recently bought an RC12F8 telescope (second hand) made by CFF telescopes from Poland. After sometime fine tunig the system (RC12F8 plus ASI2400 CMOS full frame camera) I realized that most of the pictures taken so far are polluted with parasite arcs of light, sometimes all around the frame.
I contacted Catalin from CFF telescopes and he told me most likely the problem was due to a short baffle of the secondary mirror (M2 miror). So he dent me an extender for the M2 baffle. I have the orotunity to test the M2 extender this weekend to check if this fixed the problem. However it did not (not completely). I attach a word document containing screeenshots of the images I took without and with the M2 extender).
Your opinion (and experience in case some oy you out there has had this same problem with this brand of RC telescope) is very wellcome
Jose M Benirto