Nikon AF-S NIKKOR 20mm f/1.8G ED on Nikon D7100 vs Sigma 18-35mm F1.8 DC HSM A Nikon on Nikon D7100 vs Nikon AF-S DX Zoom-Nikkor 17-55mm f/2.8G IF-ED on Nikon D7100

COMPARISON SELECTION (3 selected items max.)

DXOMARK Score

Best at f=20mm & f/1.8 [?]
23

Lens Metric Scores

Sharpness [?]
15 P-Mpix
Transmission [?]
2.2 TStop
Distortion [?]
0.4 %
Vignetting [?]
-0.9 EV
Chr. aberration [?]
6 µm

DXOMARK Score

Best at f=18mm & f/1.8 [?]
28

Lens Metric Scores

Sharpness [?]
17 P-Mpix
Transmission [?]
2 TStop
Distortion [?]
0.4 %
Vignetting [?]
-1.3 EV
Chr. aberration [?]
8 µm

DXOMARK Score

Best at f=28mm & f/2.8 [?]
19

Lens Metric Scores

Sharpness [?]
9 P-Mpix
Transmission [?]
3.4 TStop
Distortion [?]
0.4 %
Vignetting [?]
-0.9 EV
Chr. aberration [?]
14 µm