Canon EF 400mm f/2.8L IS II USM on Canon EOS 5DS R vs Nikon AF-S Nikkor 400mm F2.8G ED VR on Nikon D800E vs Nikon AF-S Nikkor 400mm F2.8G ED VR on Nikon D4

COMPARISON SELECTION (3 selected items max.)

DXOMARK Score

Best at f=400mm & f/2.8 [?]
38

Lens Metric Scores

Sharpness [?]
36 P-Mpix
Transmission [?]
3.1 TStop
Distortion [?]
0.1 %
Vignetting [?]
-1.1 EV
Chr. aberration [?]
6 µm

DXOMARK Score

Best at f=400mm & f/2.8 [?]
39

Lens Metric Scores

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

DXOMARK Score

Best at f=400mm & f/2.8 [?]
28

Lens Metric Scores

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