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Old 18-08-2011, 07:09 AM
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multiweb (Marc)
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Join Date: Oct 2007
Location: Hinchinbrook
Posts: 18,400
Originally Posted by solissydney View Post
I doubt it can be polar alignment problem from my permanent post in my shelter in the garden. But, I shall check it of course.
Can we conclude that by moving the coma corrector 1mm closer to the cmos, using my Canon 5D, has solved the problem of coma?
Thanks for the replies.
To be sure set the scope on a uniform starfield devoid of nebulosity and do a 20min exposure. That will rule out (or not) field rotation.Then you can take it from there.
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