Olympus M.ZUIKO DIGITAL ED 12-40mm F2.8 PRO on Olympus OM-D E-M1 Mark II vs Tamron SP 17-50mm F/2.8 Di II XR VC LD Aspherical IF Canon on Canon EOS 750D

COMPARISON SELECTION (3 selected items max.)
Olympus M.ZUIKO DIGITAL ED 12-40mm F2.8 PRO
Olympus M.ZUIKO DIGITAL ED 12-40mm F2.8 PRO

DXOMARK Score
Best at f=25mm & f/2.8 [?]
25

Lens Metric Scores

Sharpness [?]
12 P-Mpix
Transmission [?]
3.3 TStop
Distortion [?]
1.3 %
Vignetting [?]
-0.9 EV
Chr. aberration [?]
10 µm
Tamron SP 17-50mm F/2.8 Di II XR VC LD Aspherical IF Canon
Tamron SP 17-50mm F/2.8 Di II XR VC LD Aspherical IF Canon

DXOMARK Score
Best at f=17mm & f/2.8 [?]
15

Lens Metric Scores

Sharpness [?]
12 P-Mpix
Transmission [?]
3.5 TStop
Distortion [?]
0.3 %
Vignetting [?]
-0.7 EV
Chr. aberration [?]
6 µm