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Old 16-05-2016, 02:34 PM
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gregbradley is online now
Join Date: Feb 2006
Location: Sydney
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Thanks Richard.

So he went 8bit to speed up the processing of the files at the expense of dynamic range. He can't say 8 bit was enough when the core is way overblown - it wasn't enough. It seems strange though as 1 second exposures surely can't blow out the core. But I suppose if he is shooting at the equivalent of ISO6400 or something you could. 8 bit would be sacrificing some dynamic range surely or the if not then the gain was too high.

Its an impressive image for 1 second exposures and 2000 of them (it must be some sort of record!). But basically its still a fail as far as a high quality astro image goes.

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