Sigma 20mm F1.8 EX DG ASP RF Nikon vs Sony 20mm F2.8 vs Nikon AF Nikkor 20mm f/2.8D

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Brand

Model

DXOMARK Score

Best at f=20mm & f/2.8 [?]
28

Lens Metric Scores

Sharpness [?]
23 P-Mpix
Transmission [?]
2.1 TStop
Distortion [?]
0.6 %
Vignetting [?]
-2.3 EV
Chr. aberration [?]
8 µm

DXOMARK Score

Best at f=20mm & f/2.8 [?]
19

Lens Metric Scores

Sharpness [?]
14 P-Mpix
Transmission [?]
3.1 TStop
Distortion [?]
0.8 %
Vignetting [?]
-2.4 EV
Chr. aberration [?]
29 µm

DXOMARK Score

Best at f=20mm & f/4 [?]
27

Lens Metric Scores

Sharpness [?]
21 P-Mpix
Transmission [?]
3.3 TStop
Distortion [?]
0.7 %
Vignetting [?]
-2.2 EV
Chr. aberration [?]
18 µm