Sigma 70-300mm F4-5.6 APO-M DG Macro Nikon on Nikon D7100 vs Pentax smc PENTAX DA 55-300mm F4-5.8 ED on Pentax K-3

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

DXOMARK Score
Best at f=100mm & f/4 [?]
15

Lens Metric Scores

Sharpness [?]
9 P-Mpix
Transmission [?]
5.1 TStop
Distortion [?]
0.2 %
Vignetting [?]
-0.6 EV
Chr. aberration [?]
6 µm
Pentax smc PENTAX DA 55-300mm F4-5.8 ED
Pentax smc PENTAX DA 55-300mm F4-5.8 ED

DXOMARK Score
Best at f=300mm & f/5.8 [?]
14

Lens Metric Scores

Sharpness [?]
7 P-Mpix
Transmission [?]
5.1 TStop
Distortion [?]
0.4 %
Vignetting [?]
-0.8 EV
Chr. aberration [?]
9 µm