Carl Zeiss Loxia 2.8/21 on Sony A7R vs Carl Zeiss Distagon T 21mm f/2.8 ZF2 Nikon on Nikon D810 vs Sigma 20mm F1.4 DG HSM A Canon on Canon EOS 5DS R

COMPARISON SELECTION (3 selected items max.)

DxOMark Score

Best at f=21mm & f/2.8 [?]
35

Lens Metric Scores

Sharpness [?]
27 P-Mpix
Transmission [?]
2.8 TStop
Distortion [?]
0.4 %
Vignetting [?]
-2.8 EV
Chr. aberration [?]
7 µm

DxOMark Score

Best at f=21mm & f/2.8 [?]
26

Lens Metric Scores

Sharpness [?]
19 P-Mpix
Transmission [?]
3.4 TStop
Distortion [?]
0.6 %
Vignetting [?]
-1.9 EV
Chr. aberration [?]
5 µm

DxOMark Score

Best at f=20mm & f/1.4 [?]
40

Lens Metric Scores

Sharpness [?]
33 P-Mpix
Transmission [?]
1.8 TStop
Distortion [?]
0.8 %
Vignetting [?]
-1.7 EV
Chr. aberration [?]
6 µm