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Old 16-06-2017, 10:04 AM
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RickS (Rick)
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RickS is offline
 
Join Date: Apr 2010
Location: Brisbane
Posts: 10,584
Dunk,

If you've kept the same image scale and increased the aperture then you're collecting more photons in every pixel and have improved performance in a fundamental way by reducing the impact of shot noise. If you're taking sky limited subs then that's all that matters (if you assume equivalent QE.)

Cheers,
Rick.
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