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Old 15-08-2012, 11:02 AM
DJ N
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DJ N is offline
 
Join Date: Jul 2006
Location: Adelaide, South Australia
Posts: 423
Good points everyone.

I suppose until now, imaging from metro Adelaide, I find about 10 minutes is the max until I start getting sky glow. As for dark sites, I suppose 20 minute subs at f6 stems from previously doing 30 minutes subs with a DSLR at the native focal length of my ED120 (f7.5).

I just try to ensure I don't blow out any of the details or the star colours. A bit of trial and error.

I dare say there does come a point of diminishing returns in that going for the super long subs does not add much further detail.

Cheers,

Daniel
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