Canon EF 20-35mm f/3.5-4.5 USM on Canon EOS 5DS R vs Sony FE 28-70mm F3.5-5.6 OSS on Sony A7R II

COMPARISON SELECTION (3 selected items max.)

DXOMARK Score

Best at f=20mm & f/4 [?]
23

Lens Metric Scores

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

DXOMARK Score

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

Lens Metric Scores

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