Nikon AF-S DX Zoom-Nikkor 17-55mm f/2.8G IF-ED on Nikon D90 vs Sigma 17-50mm F2.8 EX DC OS HSM Nikon on Nikon D90

COMPARISON SELECTION (3 selected items max.)
Nikon AF-S DX Zoom-Nikkor 17-55mm f/2.8G IF-ED
Nikon AF-S DX Zoom-Nikkor 17-55mm f/2.8G IF-ED

DXOMARK Score
Best at f=35mm & f/2.8 [?]
13

Lens Metric Scores

Sharpness [?]
5 P-Mpix
Transmission [?]
3.1 TStop
Distortion [?]
0.4 %
Vignetting [?]
-0.9 EV
Chr. aberration [?]
14 µm
Sigma 17-50mm F2.8 EX DC OS HSM Nikon
Sigma 17-50mm F2.8 EX DC OS HSM Nikon

DXOMARK Score
Best at f=50mm & f/2.8 [?]
15

Lens Metric Scores

Sharpness [?]
8 P-Mpix
Transmission [?]
3.1 TStop
Distortion [?]
0.3 %
Vignetting [?]
-1.2 EV
Chr. aberration [?]
10 µm