I did an imaging session on the Crescent nebula the other night and, on looking at the images with FITS liberator, I notice that the bias offset was set to 83. I was using APT to do the captures and had not set any bias offsets anywhere. I was also using the native camera driver. Is this the default offset or have I changed something somewhere else to end up with it so high? N.B. I was also at unity gain (139).
ZWO ASI1600MM Pro Bias Offset question
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I had very similsr thing, the SIPS program’update changed both the gain and offset to 0. I re-installed Ascom driver and the ASI native driver but nothing helped. I need manually change setting everytime now. Something is wrond with the updated drivers but ZWO does not accept it….