Sigma 17-50mm F2.8 EX DC OS HSM Nikon on Nikon D7100 vs Nikon AF-S DX Zoom-Nikkor 17-55mm f/2.8G IF-ED on Nikon D7100 vs Sigma 17-70mm F2.8-4 DC Macro OS HSM Nikon on Nikon D7100

COMPARISON SELECTION (3 selected items max.)

DxOMark Score

Best at f=50mm & f/2.8 [?]
20

Lens Metric Scores

Sharpness [?]
14 P-Mpix
Transmission [?]
3.3 TStop
Distortion [?]
0.3 %
Vignetting [?]
-1.1 EV
Chr. aberration [?]
10 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

DxOMark Score

Best at f=17mm & f/2.8 [?]
16

Lens Metric Scores

Sharpness [?]
10 P-Mpix
Transmission [?]
4 TStop
Distortion [?]
0.5 %
Vignetting [?]
-0.9 EV
Chr. aberration [?]
7 µm