Sigma 70-300mm F4-5.6 APO Macro Super II Nikon on Nikon D800E vs Tamron SP AF 28-75mm F/2.8 XR Di LD Aspherical [IF] Pentax on Pentax K-3

COMPARISON SELECTION (3 selected items max.)
Sigma 70-300mm F4-5.6 APO Macro Super II Nikon
Sigma 70-300mm F4-5.6 APO Macro Super II Nikon

DXOMARK Score
Best at f=100mm & f/4 [?]
22

Lens Metric Scores

Sharpness [?]
15 P-Mpix
Transmission [?]
5.1 TStop
Distortion [?]
0.6 %
Vignetting [?]
-1.7 EV
Chr. aberration [?]
9 µm
Tamron SP AF 28-75mm F/2.8 XR Di LD Aspherical [IF] Pentax
Tamron SP AF 28-75mm F/2.8 XR Di LD Aspherical [IF] Pentax

DXOMARK Score
Best at f=35mm & f/2.8 [?]
15

Lens Metric Scores

Sharpness [?]
9 P-Mpix
Transmission [?]
3.2 TStop
Distortion [?]
0.1 %
Vignetting [?]
-0.4 EV
Chr. aberration [?]
6 µm