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Old 19-06-2009, 06:42 PM
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AstroJunk (Jonathan)
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Join Date: Jan 2006
Location: Moonee Beach
Posts: 1,945
Quote:
Originally Posted by ColHut View Post
Can this be calculated? It seems that the TFOV through even a 2" eyepiece in a fast dob only uses a tiny part of the actual light collected?
But remember - it's using ALL the light collected for what ever you are looking at. Increasing the FoV just lets you see other things too. Go look through a toilet roll tube (post your photo here)
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