Quote:
Originally Posted by DavidTrap
There is obviously a diminshing return to any improvement to SNR by taking more and more subs. To me it just reduces precious time available to image other objects.
Regards
David T
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Once you've got all the elements of astrophotography working well.. polar alignment, composition, focus, tracking and guiding, then you owe it to yourself to go longer.
While you're learning (or because it's what you want to do), shooting lots of objects a night is fine. But if you want one or two great shots, instead of a bunch of 'run of the mill' ones, then try exposing one object for four hours or more. You will notice a difference.
I now consider anything shorter than four hours to be underexposed..
Phil