Quote:
Originally Posted by fok4tel
My LB's focal ratio is f4.5. Geoff, you mentioned that a 30mm Pentax xw is a good buy, do you mean that coma is reduced a lot more in xw, and also in a Nagler? Ya, coma is a major problem for me now, every star is a small comet, and can't seem to focus to pinpoints.
Will check out the cloudy night website about the Siebert.
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Hi,
The Pentax and Nagler will be far better but you will still pobably get coma at F4.5 on long FL ep's. You should definately try before you buy or you may be dissapointed. I know it is a lot of money, but you have a great scope that you spent over 2 grand on so why not consider a parracor to make it even better.
Paul