Sony FE 100-400mm F4.5-5.6 GM OSS on Sony A7R II vs Sigma 120-300mm F2.8 DG OS HSM S Canon on Canon EOS 5DS R

COMPARISON SELECTION (3 selected items max.)

DXOMARK Score

Best at f=100mm & f/4.5 [?]
29

Lens Metric Scores

Sharpness [?]
36 P-Mpix
Transmission [?]
5.9 TStop
Distortion [?]
0.4 %
Vignetting [?]
-0.8 EV
Chr. aberration [?]
5 µm

DXOMARK Score

Best at f=300mm & f/2.8 [?]
35

Lens Metric Scores

Sharpness [?]
32 P-Mpix
Transmission [?]
2.8 TStop
Distortion [?]
0.2 %
Vignetting [?]
-1.1 EV
Chr. aberration [?]
7 µm