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Old 29-05-2015, 12:13 PM
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Slawomir (Suavi)
Amateur Photon Collector

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Join Date: Sep 2014
Location: Proserpine
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Quote:
Originally Posted by gregbradley View Post

These sensors are so low noise that when you do a dark subtract you will visually see the increase in noise. It seems counterintuitive but that's what happens.

But a master bias subtract seems like a good thing.
I totally agree. That's why now I use 250 frames to create a master bias frame that is very smooth.
Generating a master dark from so many frames is simply not practical, and using a master dark generated from a significantly lesser number of frames will add noise to the light frames, because these sensors are really low noise.
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