I've been having some serious issues with flats lately on my RC8. The two attached photos are calibrated subframes that were taken back to back with no focusing in between.
You can see that one has decent correction and the other over corrects. Can this be caused by flexure in the system? I would think if I had that bad of flexure I would have a lot of other problems.
When taking flats on my OrionED80 with the same camera/OAG I don't have this issue.
Thanks for any advice,