Sigma 50-500mm F4.5-6.3 APO DG OS HSM Nikon on Nikon D800E vs Pentax smc PENTAX DA 50-200mm F4-5.6 ED on Pentax K-50

COMPARISON SELECTION (3 selected items max.)

DXOMARK Score

Best at f=50mm & f/4.5 [?]
21

Lens Metric Scores

Sharpness [?]
17 P-Mpix
Transmission [?]
6.6 TStop
Distortion [?]
0.4 %
Vignetting [?]
-1.2 EV
Chr. aberration [?]
10 µm

DXOMARK Score

Best at f=80mm & f/4.5 [?]
12

Lens Metric Scores

Sharpness [?]
5 P-Mpix
Transmission [?]
5.2 TStop
Distortion [?]
0.4 %
Vignetting [?]
-1 EV
Chr. aberration [?]
7 µm