Sony FE 28-70mm F3.5-5.6 OSS on Sony A7R vs Olympus M.ZUIKO DIGITAL ED 12-40mm F2.8 PRO on Olympus OM-D E-M1

COMPARISON SELECTION (3 selected items max.)

DXOMARK Score

Best at f=28mm & f/3.5 [?]
22

Lens Metric Scores

Sharpness [?]
16 P-Mpix
Transmission [?]
4.9 TStop
Distortion [?]
0.8 %
Vignetting [?]
-1.5 EV
Chr. aberration [?]
10 µm

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