There doesn't seem to be any indication whether the master dark you supply to the pre-processing script should be bias-subtracted or not. A scan of the script source suggests it assumes it is *not*, is that correct?
I do note that integrating master-bias-subtracted dark subs produces a slightly different result to subtracting a master-bias from a similarly integrated master dark from non-bias-subtracted dark subs, at least with my camera - which one is correct?
Similarly for the cosmetic-correction tool driven by a master-dark, should that be bias-subtracted or not?
Thanks for any advice,
John.
