Sony Vario-Tessar T* E 16-70mm F4 ZA OSS on Sony NEX-7 vs Sigma 17-70mm F2.8-4 DC Macro OS HSM Canon on Canon EOS 7D

COMPARISON SELECTION (3 selected items max.)
Sony Vario-Tessar T* E 16-70mm F4 ZA OSS
Sony Vario-Tessar T* E 16-70mm F4 ZA OSS

DXOMARK Score
Best at f=35mm & f/4 [?]
15

Lens Metric Scores

Sharpness [?]
8 P-Mpix
Transmission [?]
4.3 TStop
Distortion [?]
0.4 %
Vignetting [?]
-1 EV
Chr. aberration [?]
8 µm
Sigma 17-70mm F2.8-4 DC Macro OS HSM Canon
Sigma 17-70mm F2.8-4 DC Macro OS HSM Canon

DXOMARK Score
Best at f=24mm & f/3.2 [?]
13

Lens Metric Scores

Sharpness [?]
8 P-Mpix
Transmission [?]
4 TStop
Distortion [?]
0.4 %
Vignetting [?]
-0.7 EV
Chr. aberration [?]
5 µm