Quote:
Originally Posted by Peter Ward
Paul....you only need darks, and flats.
A bias frame = a zero second dark exposure.
Hence *any* non zero dark has the bias there already....sigh...
I'm sure you will enjoy the new toy.
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You should mind your manners Peter - no need to be rude.
To subtract a bias from your flat is standard procedure in CCDstack and in Wodaski's Zone book. If you feel otherwise you may well be right but
you could express that politely.
Greg.