Quote:
Originally Posted by strongmanmike
Ok, so:
1) Colder the better is valid but most useful under dark skies where it is advantageous and noticeable.
2) A library of darks is usable for quite a while (even years?)
So perhaps I should keep the set of -30C darks for spring/summer and do a new set of -40C darks for use in winter?
Mike
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if -30C is sufficient to meet the exposure criteria then -40C will offer no additional advantage
my comment about darks taken in extremes of ambients expected was directed more to one operating temperature (say -25C) but at extremes of environmental ambient temperatures (like summer and winter ambients)
the change in ambient temperatures can make a few DN difference in the average bias level so that is where it might be a good idea to have a couple sets of darks. One for winter and one for summer temperatures