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Greg
I was imaging at -30C with the 8300 chip in the QSI and like you mentioned I thought that the center of the galaxy would be blown out. But when I looked at the histogram of 10 and 30 min subs it was nowhere near saturating. Obviously some stars which are blown at 10 min will be, but not as many as you would think. Anyway in relation to noise I must say that the background was virtually noise free at 60 min exposure and very very easy to process. At the moment I'm going to reprocess this image in pixinsight as I've just started using it and I find in many respects it gives a better image than I can get in PS. When I've done it I will post it here. I will post both 10 and the 60 min subs as a comparison.
Allan
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