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Old 19-04-2007, 06:20 AM
Dennis
Dazzled by the Cosmos.

Dennis is offline
 
Join Date: May 2005
Location: Brisbane
Posts: 11,786
You might find this nomogram useful in determining the optimum set up for seeing conditions and subject matter versus focal length and pixel size.

It is a copy of one published in Sky & Telescope.

Cheers

Dennis
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