Canon EF 50mm f/1.8 STM on Canon EOS Rebel T2i, EOS 550D or Kiss X4 vs Canon EF 40mm f/2.8 STM on Canon EOS Rebel T2i, EOS 550D or Kiss X4

COMPARISON SELECTION (3 selected items max.)

DXOMARK Score

Best at f=50mm & f/1.8 [?]
21

Lens Metric Scores

Sharpness [?]
13 P-Mpix
Transmission [?]
2 TStop
Distortion [?]
0.2 %
Vignetting [?]
-0.8 EV
Chr. aberration [?]
4 µm

DXOMARK Score

Best at f=40mm & f/2.8 [?]
18

Lens Metric Scores

Sharpness [?]
9 P-Mpix
Transmission [?]
2.7 TStop
Distortion [?]
0.1 %
Vignetting [?]
-0.7 EV
Chr. aberration [?]
14 µm