Sigma 17-50mm F2.8 EX DC OS HSM Nikon on Nikon D7000 vs Tamron SP 17-50mm F/2.8 Di II XR VC LD Aspherical IF Nikon on Nikon D7000 vs Nikon AF-S DX Zoom-Nikkor 17-55mm f/2.8G IF-ED on Nikon D300

COMPARISON SELECTION (3 selected items max.)
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 [?]
17

Lens Metric Scores

Sharpness [?]
10 P-Mpix
Transmission [?]
3.1 TStop
Distortion [?]
0.3 %
Vignetting [?]
-1.1 EV
Chr. aberration [?]
10 µm
Tamron SP 17-50mm F/2.8 Di II XR VC LD Aspherical IF Nikon
Tamron SP 17-50mm F/2.8 Di II XR VC LD Aspherical IF Nikon

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

Lens Metric Scores

Sharpness [?]
9 P-Mpix
Transmission [?]
3.2 TStop
Distortion [?]
0.3 %
Vignetting [?]
-1 EV
Chr. aberration [?]
5 µm
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 [?]
12

Lens Metric Scores

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