Thread: Snr
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Old 24-10-2011, 08:52 PM
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pvelez (Pete)
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Join Date: Aug 2006
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Quote:
Originally Posted by Merlin66 View Post
You need more exposure. The shot noise varies as the square root of the total ADU; the bigger the signal, the lower the noise.
So longer integration times rather than higher binning is the way to go

I had suspected as much. For some reason I had thought that binning could be substituted for longer subs.

Thanks for the tip - looks like I need to g out to 5 minutes to beat the noise down some more.

Pete
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