How sharp should the 16-25mm L II be on a 6D body?
Re: How sharp should the 16-25mm L II be on a 6D body?
Marco Nero wrote:
The Sigma image is clearly softer when viewed at 100%. The Canon lens produced a noticably sharper image with bolder definition in the details. But you shot these both at f/11 which means you are assessing the lenses at (probably) their sharpest.
f11 is well into pixel-level diffraction on recent Canon APS-C. The Sigma would almost certainly be better served at f8 (or lower). The 16-35LII only benefits from f11 in the extreme corners (and general DOF), but if overall sharpness is the objective, the lenses should be tested at their respective optimum apertures. There are UWA alternatives to the 16-35LII on FF that will beat the Sigma on crop convincingly, but in general (and as others have pointed out) deep DOF photography is not the place to expect superiority from sensor size (with commensurate optics) alone.
Fujifilm FinePix Real 3D W3
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