Canon EF 20-35mm f/3.5-4.5 USM on Canon EOS 5D Mark II vs Sigma 17-35mm F2.8-4 EX DG Aspherical HSM Canon on Canon EOS 5D Mark II

COMPARISON SELECTION (3 selected items max.)

DXOMARK Score

Best at f=20mm & f/4 [?]
17

Lens Metric Scores

Sharpness [?]
12 P-Mpix
Transmission [?]
4.5 TStop
Distortion [?]
0.5 %
Vignetting [?]
-1.6 EV
Chr. aberration [?]
12 µm

DXOMARK Score

Best at f=17mm & f/2.8 [?]
18

Lens Metric Scores

Sharpness [?]
9 P-Mpix
Transmission [?]
3.9 TStop
Distortion [?]
0.4 %
Vignetting [?]
-1.6 EV
Chr. aberration [?]
9 µm