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Old 23-01-2009, 07:22 AM
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bojan is offline
Join Date: Jul 2006
Location: Mt Waverley, VIC
Posts: 6,016
Originally Posted by spearo View Post
you wont need darks if you use the ICNR.
As Frank said...

The primary function of INCR is to compensate for dark current offset of the sensor, which is more or less constant feature for a given sensor, and specifically to get rid of hot pixels, which are pixels with excessive dark current.

To improve SNR, alignment and stacking (addition of pixel-by-pixel signal values) of number of light frames does the trick of reducing noise (random varioations of pixel values) and enhancing the signal (non-random varations).
Additional dark frames taken will not really help here.
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