Down sizing A77 images to 16Mp for checking IQ?

Started Sep 27, 2011 | Discussions thread
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zefelder Regular Member • Posts: 190
Re: Down sizing A77 images to 16Mp for checking IQ?

At low ISO A77 is definitely better than 16mp cameras. For a proper comparison photos from 16mp cameras should be upsampled to 24 mp. Not the other way round.

Ar high ISO however the effective resolution drops, i.e. 24mp sensor don't actually resolve 24mp and 16mp sensor don't actually resolve 16mp. 24mp sensor simply shows (resolves) more noise. So for a proper comparison at high ISO the images must be downsampled to a common size, e.g. 16mp.

Does this make more sense now?

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