Canon EF 200-400mm f/4L IS USM Extender 1.4x on Canon EOS 5DS R vs Sony FE 100-400mm F4.5-5.6 GM OSS on Sony A7R II vs Nikon AF-S NIKKOR 200-400mm f/4G ED VR II on Nikon D800E

COMPARISON SELECTION (3 selected items max.)
Canon EF 200-400mm f/4L IS USM Extender 1.4x
Canon EF 200-400mm f/4L IS USM Extender 1.4x

DXOMARK Score
Best at f=300mm & f/4 [?]
30

Lens Metric Scores

Sharpness [?]
33 P-Mpix
Transmission [?]
4.7 TStop
Distortion [?]
0 %
Vignetting [?]
-1.2 EV
Chr. aberration [?]
2 µm
Sony FE 100-400mm F4.5-5.6 GM OSS
Sony FE 100-400mm F4.5-5.6 GM OSS

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
Nikon AF-S NIKKOR 200-400mm f/4G ED VR II
Nikon AF-S NIKKOR 200-400mm f/4G ED VR II

DXOMARK Score
Best at f=250mm & f/4 [?]
27

Lens Metric Scores

Sharpness [?]
23 P-Mpix
Transmission [?]
4.9 TStop
Distortion [?]
0.1 %
Vignetting [?]
-1.2 EV
Chr. aberration [?]
11 µm