Hello. This is my first post/thread. I literally just started last week.
Now this might seem like an obvious question to answer, but I can't can't seem to figure the whole thing out. I am using a Celestron 6se and an adapter for a camera. I first tested this with a Sony NEX 3 (an older camera) that's APSC, here is the result:
See those black spots all over the place. So, I cleaned every optical piece to get rid of them: the eyepieces, the right angle adapter, the adapter to the camera, blew out sensor dust, and even the front of the telescope. Didn't really help much (after doing all that the spots were as present as before), but then I changed to my a7iii and this is the result:
It is much better, but there are still some small spots if you look closely (look in the corners when that area passes over the brighter areas) and it annoys me. It's not sensor dust either. I've taken videos of white fully exposed walls and don't see any dust at all (actually on either camera). I also can't figure out why changing cameras would make that much of a difference as both don't have dust.
So, does anyone have any experience with this and maybe knows what to pinpoint. Like I said, I really have cleaned everything possible.
Edited by rj144, 31 October 2020 - 03:18 PM.