Quote:
Originally Posted by cfranks
I think it depends on what software package you use to process your images. Some (most?) will scale the Dark to match temp and exposure. I only use PixInsight which does, and I only use Master Darks of 900 secs and 30 secs. TheSkyX seems to scale the darks for the Autoguider when stored in the Image Calibration library so I just use a dark of 10 secs, being my maximum guider exposure. Saves a lot of time, getting calibration files in increments of 5 mins or so.
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That's a really good point, didn't even think of the scaling.