Tamron SP AF 17-50mm F/2.8 XR Di II LD Aspherical [IF] Canon on Canon EOS 500D, DIGITAL REBEL T1i or Kiss Digital X3 vs Canon EF 17-40mm f/4L USM on Canon EOS 500D, DIGITAL REBEL T1i or Kiss Digital X3 vs Canon EF 16-35mm f/2.8L USM on Canon EOS 500D, DIGITAL REBEL T1i or Kiss Digital X3

COMPARISON SELECTION (3 selected items max.)

DXOMARK Score

Best at f=24mm & f/2.8 [?]
12

Lens Metric Scores

Sharpness [?]
7 P-Mpix
Transmission [?]
3.4 TStop
Distortion [?]
0.3 %
Vignetting [?]
-0.7 EV
Chr. aberration [?]
4 µm

DXOMARK Score

Best at f=24mm & f/4 [?]
11

Lens Metric Scores

Sharpness [?]
7 P-Mpix
Transmission [?]
4.4 TStop
Distortion [?]
0.2 %
Vignetting [?]
-0.5 EV
Chr. aberration [?]
6 µm

DXOMARK Score

Best at f=20mm & f/2.8 [?]
12

Lens Metric Scores

Sharpness [?]
6 P-Mpix
Transmission [?]
3.4 TStop
Distortion [?]
0.3 %
Vignetting [?]
-0.4 EV
Chr. aberration [?]
10 µm