Compare the Canon EF 200-400mm f/4L IS USM Extender 1.4x on Canon EOS 5DS R

COMPARISON SELECTION (3 selected items max.)

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