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Just a thought from a digital newbie. If you spend 2 or 3 hrs taking subs, and then let the camera spend a similar amount of time taking darks,
you could get a significant change in ambient temp between taking the first sub, and the last dark. At least the darks match the subs when
using in camera noise reduction; obviating the need to spend time
creating a library of darks. I think it's entirely a matter of personal preference. As far as I can gather from everything I have heard or
read, there is no actual benefit to the image which ever way you go.
raymo
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