Pentax smc PENTAX DA 55-300mm F4-5.8 ED on Pentax K-5 IIs vs Sigma 18-300mm F3.5-6.3 DC MACRO HSM C Pentax on Pentax K-5 II

COMPARISON SELECTION (3 selected items max.)

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 [?]
-0.9 EV
Chr. aberration [?]
9 µm

DXOMARK Score

Best at f=50mm & f/4.5 [?]
15

Lens Metric Scores

Sharpness [?]
7 P-Mpix
Transmission [?]
5.7 TStop
Distortion [?]
0.6 %
Vignetting [?]
-1 EV
Chr. aberration [?]
8 µm