A99 DXOMark Full Measurement Results Available

Started Jan 4, 2013 | Discussions thread
neo_nights
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Any word about whether...
In reply to VirtualMirage, Jan 4, 2013

... the on sensor PDAF actually affects high ISO capacity?

After DxO released their review and score on the A99, I've seen some people (I think on SAR) saying that *maybe* the on sensor PDAF could leave the camera with "less pixels" to work with (since some of them are being used to AF and not collecting light), thus generating more noise.

Since I'm no engineer I cannot comment on that, but the math used (light loss caused by the mirror + pixels 'lost' for the AF) would roughly give 1 stop 'penalty' compared to the Nikon D600.

Anyone knows anything about it?

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