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Hi Michael. I have to agree with you that fast achros are not the best for
imaging, but only because of the CA. Your scope could give you better results on Eta Car. Obviously your tracking was not spot on, and the first two images in particular, look a bit soft. How are you focusing? I see only a little of the coma that you mentioned; you wouldn't know
how much until your stars are round.
raymo
Last edited by raymo; 15-04-2016 at 12:31 AM.
Reason: more text
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