Thread: Whats the best ISO for Astro DSLRs?
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Old 11-01-2008, 08:37 PM
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Bassnut (Fred)
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Alchemy, 1hr expoures?, umm, uncooled?, are you sure?, I havent seen much past 10-15 mins. 1hr is pushing it with astro CCDs ;-).

Yes, from what ive done and seen, 6 mins is about optimum for a DSLR, 10min at a push at lower ISOs.
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