Studio Tests - APS-C format
The 24mm F2 performs very well on APS-C - there's really very little to complain about here. Sharpness is high, and chromatic aberration, vignetting and distortion all very low.
|Sharpness||Sharpness is high and impressively even across the frame wide open at F2. It increases a little towards the corners on stopping down, but not much. Very best results are seen around F4 - 5.6; at apertures smaller than about F11, diffraction starts to visibly degrade the overall sharpness.|
|Chromatic Aberration||Lateral chromatic aberration is very low, with just a hint of green / magenta fringing towards the corners of the frame.|
|Falloff||We consider falloff to become perceptible when the corner illumination falls to more than 1 stop less than the center. As usual for a full-frame lens used on APS-C, there's really nothing to worry about here.|
|Distortion||Distortion is very low, at 0.5% barrel - nothing you're ever likely to see.|
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