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Old 28-07-2010, 12:11 PM
casstony
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casstony is offline
 
Join Date: Feb 2006
Location: Warragul, Vic
Posts: 4,494
Quote:
Originally Posted by mental4astro View Post
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Suzy, I've had a go of an Andrews 30mm 80* EP in my 17.5" f/4.5. It performed surprisingly well. Actually much better than the Nagler!
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In the 10" f/5 I had the Andrews 30mm was mainly used as a finder eyepiece - the outer half of the field was terrible. I wonder if there have been changes to the design of the eyepiece for it to perform well in your scope? The 17" would display less field curvature than a 10" but astigmatism should be diabolical at f/4.5.

You might find the Nagler is suddenly transformed with a paracorr in that fast scope.
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