Hi Paul, Paul and Mark,
Just out of curiosity.... what would one be looking for in the pictures ( that Paul H has posted) in regards to field rotation?
I am sorry that I have nothing to contribute to fix the problem.
I just want to learn what field rotation looks like.....I cant see any distortion on the main pics, but on the zoomed in pics, I see some just slightly egg shape stars or out of focus stars.
To be honest the aberrations are not worth mentioning.....they are beautiful pics!
I understand what field rotation is and does ( google is thy friend), but cant see it in your pics Paul....to that extent........
I guess when I get (
) to your level I will look back at this post and cringe.....
Bartman