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Old 15-03-2023, 11:20 AM
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rat156
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Join Date: Aug 2005
Location: Melbourne
Posts: 1,696
Hi P&C,

Yes, I am shooting through a diagonal, need it to get the backfocus. Also on An Alt-Az mount, so field rotation is an issue as well...

I don't really notice as I can compare mirror images (something to do with an organic chemistry background). I'll try to flip and rotate in future.

Cheers
Stu
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