Quote:
Originally Posted by seeker372011
what settings-gain and offset are you using for flats?
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The Flats are Taken with the same Gain and offset as the light images. The exposure time is varied to give an average saturation of about 20000. About 1/3 full white point. 20 or so images are taken and then combined using ImagesPlus on a median setting to end up with a Master Flat file. Bias fils are shot the same way with the same exposure as the flat files.
I don't really know if this is the correct process but it seems to work OK for me.
Flats and Bia files are taken each imaging run to ensure dust motes and marks are consistant with the particular image run.