Sigma 18-35mm F1.8 DC HSM A Canon on Canon EOS Rebel T2i, EOS 550D or Kiss X4 vs Canon EF 24-70mm f/4L IS USM on Canon EOS Rebel T2i, EOS 550D or Kiss X4 vs Canon EF 16-35mm f/2.8L II USM on Canon EOS Rebel T2i, EOS 550D or Kiss X4

COMPARISON SELECTION (3 selected items max.)
Sigma 18-35mm F1.8 DC HSM A Canon
Sigma 18-35mm F1.8 DC HSM A Canon

DXOMARK Score
Best at f=18mm & f/1.8 [?]
26

Lens Metric Scores

Sharpness [?]
14 P-Mpix
Transmission [?]
1.8 TStop
Distortion [?]
0.3 %
Vignetting [?]
-1 EV
Chr. aberration [?]
7 µm
Canon EF 24-70mm f/4L IS USM
Canon EF 24-70mm f/4L IS USM

DXOMARK Score
Best at f=24mm & f/4 [?]
13

Lens Metric Scores

Sharpness [?]
8 P-Mpix
Transmission [?]
4 TStop
Distortion [?]
0.1 %
Vignetting [?]
-0.4 EV
Chr. aberration [?]
5 µm
Canon EF 16-35mm f/2.8L II USM
Canon EF 16-35mm f/2.8L II USM

DXOMARK Score
Best at f=20mm & f/2.8 [?]
14

Lens Metric Scores

Sharpness [?]
9 P-Mpix
Transmission [?]
3.2 TStop
Distortion [?]
0.2 %
Vignetting [?]
-0.5 EV
Chr. aberration [?]
12 µm