Pentax smc PENTAX DA 14mm F2.8 on Pentax K-5 vs Samyang 14mm f/2.8 IF ED UMC Aspherical Nikon on Nikon D7000

COMPARISON SELECTION (3 selected items max.)
Pentax smc PENTAX DA 14mm F2.8
Pentax smc PENTAX DA 14mm F2.8

DXOMARK Score
Best at f=14mm & f/5.6 [?]
13

Lens Metric Scores

Sharpness [?]
6 P-Mpix
Transmission [?]
3.2 TStop
Distortion [?]
0.7 %
Vignetting [?]
-1.5 EV
Chr. aberration [?]
12 µm
Samyang 14mm f/2.8 IF ED UMC Aspherical Nikon
Samyang 14mm f/2.8 IF ED UMC Aspherical Nikon

DXOMARK Score
Best at f=14mm & f/4 [?]
17

Lens Metric Scores

Sharpness [?]
10 P-Mpix
Transmission [?]
3.1 TStop
Distortion [?]
1.5 %
Vignetting [?]
-1.3 EV
Chr. aberration [?]
17 µm