Im creating a master bias for my A7RIII in Pixinsight and have not done this in a long time.
Im using this site for a baseline process http://dslr-astropho...as-frames-dslr/
My question here is what should I use as a scale estimator?
What type of pixel rejection should I use? Im stacking 450 subs. I typically prefer to using the linear regression rejection algorithm
Finally, how do I analyze my bias frame to ensure it is optimal?
Should I use ROI and restack in pursuit of some objective? thanks