Nikon AF Nikkor 20mm f/2.8D on Nikon D7100 vs Sigma 20mm F1.8 EX DG ASP RF Nikon on Nikon D7100 vs Samyang 24mm f/1.4 ED AS UMC Nikon on Nikon D7100

COMPARISON SELECTION (3 selected items max.)
Nikon AF Nikkor 20mm f/2.8D
Nikon AF Nikkor 20mm f/2.8D

DXOMARK Score
Best at f=20mm & f/4 [?]
19

Lens Metric Scores

Sharpness [?]
12 P-Mpix
Transmission [?]
3.4 TStop
Distortion [?]
0.7 %
Vignetting [?]
-0.8 EV
Chr. aberration [?]
22 µm
Sigma 20mm F1.8 EX DG ASP RF Nikon
Sigma 20mm F1.8 EX DG ASP RF Nikon

DXOMARK Score
Best at f=20mm & f/2.8 [?]
22

Lens Metric Scores

Sharpness [?]
16 P-Mpix
Transmission [?]
2.2 TStop
Distortion [?]
0.6 %
Vignetting [?]
-1 EV
Chr. aberration [?]
7 µm
Samyang 24mm f/1.4 ED AS UMC Nikon
Samyang 24mm f/1.4 ED AS UMC Nikon

DXOMARK Score
Best at f=24mm & f/1.4 [?]
24

Lens Metric Scores

Sharpness [?]
15 P-Mpix
Transmission [?]
1.7 TStop
Distortion [?]
0.5 %
Vignetting [?]
-0.9 EV
Chr. aberration [?]
9 µm