Sigma 120-300mm F2.8 DG OS HSM S Canon on Canon EOS 5D Mark III vs Canon EF 400mm f/4 DO IS II USM on Canon EOS 5D Mark III

COMPARISON SELECTION (3 selected items max.)

DXOMARK Score

Best at f=300mm & f/2.8 [?]
29

Lens Metric Scores

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

DXOMARK Score

Best at f=400mm & f/4 [?]
23

Lens Metric Scores

Sharpness [?]
17 P-Mpix
Transmission [?]
5 TStop
Distortion [?]
0.1 %
Vignetting [?]
-1.1 EV
Chr. aberration [?]
4 µm