Cephalotus
Senior Member
PS : please ignore my spelling errors, I forgot to read that posting before hitting the enter button...
The Coc at F2,8 is rougly 1,9µm, no matter which sensor size, noThe diffraction limited fstop for a hypothetical 12.7 MP E-3
printed at A3 and viewed at 50cm is f 5.6. And for a 25cm distance
it's f 2.8! No wonder Olympus wants to makes f2 zooms.
amtter which pixel count and no matter which lens you use.
Of course you have to magnify that 1,9µm CoC more with a smaller
sensor than with a bigger sensor. )
But at CoC at 1,9µm you could use about 67 Foveon like Megapixels
(!) (even more with Bayer sensors) on a 18x13,5mm fourthirds sensor
and you will get perfectly sharp "pixels".
That's more than enough in my opinion.
And I doubt that you will see any problems with a 67MP Foveon file
on an A3 print, even wen fiewed from 25cms.
best regards
)
CoC = 1,22 * F * µ * (m+1) (Raleigh)
m = magnification factor = 0 for focus at infinty
µ = wave length of the light (green light = 0,55µm)
F = F-stop