Not so easily determined. Resolution is ultimately limited by
diffraction. But diffraction varies by wavelength with blue being least
affected followed by green and then red.
If you shoot a 4/3 image at f/8 the diffraction limits leave the blue at
a max of 16 MP but cut the green to 8 MP and the red to 5 MP. To get
the theoretical maximum out of a 16 MP 4/3 sensor you'd have to limit
aperture to f/6.3 or maybe even f/5.6. Only at these or larger
apertures would you then be able to consider the effects of reds and
blues having fewer sensels.
Chuck Norcutt
On 11/3/2014 4:17 PM, Ken Norton wrote:
Because with digital, almost across the entire brightness range of the
image, the resolution stays the same. The exception being in the
bottom three stops of exposure where things muddy up a bit, and when
working with reds or blues, which have fewer sensels. But for the most
part, effective resolution remains uniform across most of the tonal
range. With film, this is certainly not true.
--
_________________________________________________________________
Options: http://lists.thomasclausen.net/mailman/listinfo/olympus
Archives: http://lists.thomasclausen.net/mailman/private/olympus/
Themed Olympus Photo Exhibition: http://www.tope.nl/
|