05-12-2012, 09:04 PM
The double linear resolution is a best case, but not an unrealistic one to be attained some of the time. If you are working deep in the red or blue regions where there isn't significant green sensitivity left, you have just lost the use of 75% of the sensor area.
One the CA point, as mentioned in a previous post, it doesn't matter if a lens has either form of CA if you are looking at a sufficiently narrow part of the spectrum. Other parts can't interfere if they're not significantly being passed.
Diffraction limiting is no more a constraint than for colour. Like increased MP counts in general, you don't need to have 100% use of it all the time. This could give more capability to hand to use when conditions allow.
One the CA point, as mentioned in a previous post, it doesn't matter if a lens has either form of CA if you are looking at a sufficiently narrow part of the spectrum. Other parts can't interfere if they're not significantly being passed.
Diffraction limiting is no more a constraint than for colour. Like increased MP counts in general, you don't need to have 100% use of it all the time. This could give more capability to hand to use when conditions allow.
<a class="bbc_url" href="http://snowporing.deviantart.com/">dA</a> Canon 7D2, 7D, 5D2, 600D, 450D, 300D IR modified, 1D, EF-S 10-18, 15-85, EF 35/2, 85/1.8, 135/2, 70-300L, 100-400L, MP-E65, Zeiss 2/50, Sigma 150 macro, 120-300/2.8, Samyang 8mm fisheye, Olympus E-P1, Panasonic 20/1.7, Sony HX9V, Fuji X100.