On 18/03/2013 2:42 p.m., Trevor wrote:
"Me" wrote in message
...
36 mp is NOT 50% greater resolution than 24mp - linear resolution should
be used, in which case the difference is about 22%.

If you think you can see the difference in result between a 10mp camera
and an 11mp camera, then that's about the average difference in practice
you'd see between say a d600 and a d800.

The mathematics proving no conflict between those two statements evades me.
Can you spell it out more clearly?


There's a slight mistake in what I said above, should read "10 and 11mp
image".

The rest is easy. DXO claim that with the very best lens they have
tested (IIRC the 85mm f1.4 G), the perceptual resolution in megapixels
is about 22mp with a D800, and 19mp with a D3x. The worse the lens, the
less the difference.
If you need a definition of "perceptual megapixels" then I suggest you
visit DXO's site.
Don't forget that "perception /is/ reality".
Of course you may as well have that extra tiny bit of resolution, but
don't expect it to make much difference to your prints at any size.