Sigma 20mm F1.4 DG HSM A Canon on Canon EOS 5D Mark IV vs Sigma 20mm F1.4 DG HSM A Nikon on Nikon D850 vs Carl Zeiss Loxia 2.8/21 on Sony A7R II

COMPARISON SELECTION (3 selected items max.)

DXOMARK Score

Best at f=20mm & f/1.4 [?]
36

Lens Metric Scores

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

DXOMARK Score

Best at f=20mm & f/1.4 [?]
43

Lens Metric Scores

Sharpness [?]
37 P-Mpix
Transmission [?]
1.7 TStop
Distortion [?]
0.7 %
Vignetting [?]
-2.1 EV
Chr. aberration [?]
10 µm

DXOMARK Score

Best at f=21mm & f/2.8 [?]
42

Lens Metric Scores

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