Quote:
Originally Posted by spearo
Mark,
you wont need darks if you use the ICNR.
frank
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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.