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Old 29-05-2016, 10:44 PM
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Atmos (Colin)
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Join Date: Aug 2011
Location: Melbourne
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Using the graph that Shiraz posted.
http://www.iceinspace.com.au/forum/s...&postcount=157

It should still take about 6 minutes to become read noise limited, even at ~1.6e-. I based the calculations off of my previous setup was at F/5.7 and a KAF-8300 with a read noise of 8.5e-. It needed 90-120 minutes to reach that point!

Last night I did 10 minute subs with my ICX694 (more sensitive, smaller wells and larger pixels) and it wasn't saturated at the core. Sounds like the gain may be a tad high but you can also throw in some 1-10s subs to tone that down during processing.
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