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How much data is needed?
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19-06-2018, 01:06 PM
Atmos
(Colin)
Ultimate Noob
Join Date: Aug 2011
Location: Melbourne
Posts: 6,989
If you double your exposure you only get a ~41% increase in SNR.
(22/11)^0.5 = 1.41
(16/11)^0.5 = 1.21
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