Quote:
Originally Posted by Saturn488
I am using an ASI178MM-Cooled and I find my images come out noisy. My gain and offset isn’t set very high and the camera is usually at -20C.
My exposures are 180 seconds.
Does anyone have any issue with noise using cooled cameras?
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1. Not really with a 1600mm-pro. Noise wise they are pretty good (unless yours is faulty).
2. Try astroflats plugin for Photoshop - we don't use any calibration frames as astroflats does the job pretty well.
3. In deep sky stacker, make sure you don't have hot or cold pixel reduction selected as this can increase perceivable noise as it can hollow out your stars making them less sharp and appear overall "more noisy".