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Old 08-08-2015, 09:45 PM
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Atmos (Colin)
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Join Date: Aug 2011
Location: Melbourne
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Quote:
Originally Posted by gregbradley View Post
KAI11002 gives .93 arc secs per pixel on a 10 inch F8 scope. Half that with the 20 inch F8 (.46).

Greg.
True, but a 10" F/8 will be the same as a 20" F/4
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