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Old 25-08-2016, 06:47 AM
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gregbradley
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Join Date: Feb 2006
Location: Sydney
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I usually check the box for bias with darks as you say for those times when the light exposure length is different to the dark length. CCDStack will scale your darks to match the exposure. It seems to work well but I prefer an exact match.

So I prefer to try to standardise exposure lengths to avoid that situation where possible.

Greg.
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