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Old 04-02-2015, 05:43 PM
clive milne
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clive milne is offline
 
Join Date: May 2011
Location: Freo WA
Posts: 1,443
Quote:
Originally Posted by Paul Haese View Post
In any event it looks like long subs do work in a dark sky environment and negate the need to go shorter. Am I reading this right? Since his figure of 0.9 for F is arbitrary but looks reasonable. Thoughts?
Yes, that is consistent with my understanding of the maths at least. Basically, you just need to expose long enough for the shot noise to be dominant.
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