Quote:
Originally Posted by Atmos
How does the stacking process deal with subs of different gains? Different gains yielding vastly different pixel values.
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definitely not recommended. recently tried stacking subs taken at gain 50, 100 and 200. PI eventually did a reasonable job with average + offset/scaling normalisation, but had to use severe min/max rejection with flux equalisation for the rejection normalisation - even then there are a few just noticeable warmish pixels left in the stack.
best bet is to decide on a gain and stick with it unless there is a very good reason to do otherwise.