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F-Ratio and the effects of field curvature

Started by ecusson, 12/14/2003 07:32PM
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Posted 12/14/2003 07:32PM Opening Post
Eric Cusson
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Join Date: Dec 2002

Location: Bedford NH, US

Posts: 8

Hey Guys,

At what F-Ratio (fast) do the effects of field curvature become apparent?

In your experience, what eyepieces handle fast focal ratios best, say F/5.5, with minimal edge distortion, coma etc?

Regards,

Eric
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