Sigma 120-400mm F4.5-5.6 DG APO OS HSM Canon on Canon EOS 5DS R vs Tamron 18-200mm F/3.5-6.3 Di III VC Sony E on Sony A6000

COMPARISON SELECTION (3 selected items max.)
Sigma 120-400mm F4.5-5.6 DG APO OS HSM Canon
Sigma 120-400mm F4.5-5.6 DG APO OS HSM Canon

DXOMARK Score
Best at f=120mm & f/4.5 [?]
21

Lens Metric Scores

Sharpness [?]
15 P-Mpix
Transmission [?]
5.8 TStop
Distortion [?]
0.3 %
Vignetting [?]
-1.2 EV
Chr. aberration [?]
8 µm
Tamron 18-200mm F/3.5-6.3 Di III VC Sony E
Tamron 18-200mm F/3.5-6.3 Di III VC Sony E

DXOMARK Score
Best at f=18mm & f/3.5 [?]
11

Lens Metric Scores

Sharpness [?]
4 P-Mpix
Transmission [?]
6.5 TStop
Distortion [?]
0.4 %
Vignetting [?]
-0.6 EV
Chr. aberration [?]
15 µm