Sigma 24-70mm F2.8 IF EX DG HSM Sony on Sony SLT Alpha 99 vs Sony Vario-Sonnar T* 24-70mm F2.8 ZA SSM on Sony SLT Alpha 99 vs Tamron SP AF 28-75mm F/2.8 XR Di LD Aspherical [IF] Sony on Sony SLT Alpha 99

COMPARISON SELECTION (3 selected items max.)
Sigma 24-70mm F2.8 IF EX DG HSM Sony
Sigma 24-70mm F2.8 IF EX DG HSM Sony

DXOMARK Score
Best at f=35mm & f/4 [?]
19

Lens Metric Scores

Sharpness [?]
15 P-Mpix
Transmission [?]
3.2 TStop
Distortion [?]
0.4 %
Vignetting [?]
-1.4 EV
Chr. aberration [?]
25 µm
Sony Vario-Sonnar T* 24-70mm F2.8 ZA SSM
Sony Vario-Sonnar T* 24-70mm F2.8 ZA SSM

DXOMARK Score
Best at f=35mm & f/2.8 [?]
22

Lens Metric Scores

Sharpness [?]
16 P-Mpix
Transmission [?]
3.1 TStop
Distortion [?]
0.3 %
Vignetting [?]
-1.4 EV
Chr. aberration [?]
15 µm
Tamron SP AF 28-75mm F/2.8 XR Di LD Aspherical [IF] Sony
Tamron SP AF 28-75mm F/2.8 XR Di LD Aspherical [IF] Sony

DXOMARK Score
Best at f=35mm & f/2.8 [?]
20

Lens Metric Scores

Sharpness [?]
14 P-Mpix
Transmission [?]
3.3 TStop
Distortion [?]
0.4 %
Vignetting [?]
-1.4 EV
Chr. aberration [?]
8 µm