Quote:
Originally Posted by multiweb
Don't want to state the obvious but it looks to me like a simple collimation issue? Tweaking the secondary tilt should resolve that. 
If you have difficulties doing it visually stick a webcam or other planetary camera at the back and look at a screen instead.
PS: did you play with the primary tilt at all by any chance? |
"Play" would not be the total sum - I think the incident(s) I referred to might have put it out of alignment. Then, compounding the problem, after taking apart/putting back together, I did try some adjustments at the back of the scope (the 3 points which seem to have 2 adjustments at each point?). I quickly gave that up though since I couldn't see any real change no matter what I tried. No doubt I made it worse.