Olympus M.ZUIKO DIGITAL ED 12-40mm F2.8 PRO on Olympus OM-D E-M1 vs Canon EF 24-70mm f/2.8L II USM on Canon EOS 5D Mark III

COMPARISON SELECTION (3 selected items max.)

DXOMARK Score

Best at f=12mm & f/2.8 [?]
20

Lens Metric Scores

Sharpness [?]
9 P-Mpix
Transmission [?]
3.3 TStop
Distortion [?]
1.3 %
Vignetting [?]
-0.9 EV
Chr. aberration [?]
10 µm

DXOMARK Score

Best at f=24mm & f/2.8 [?]
28

Lens Metric Scores

Sharpness [?]
18 P-Mpix
Transmission [?]
3 TStop
Distortion [?]
0.4 %
Vignetting [?]
-1.7 EV
Chr. aberration [?]
16 µm