Pentax smc DA 15mm F4 ED AL Limited on Pentax K-5 vs Nikon AF Nikkor 20mm f/2.8D on Nikon D7000

COMPARISON SELECTION (3 selected items max.)

DXOMARK Score

Best at f=15mm & f/5.6 [?]
13

Lens Metric Scores

Sharpness [?]
6 P-Mpix
Transmission [?]
4.3 TStop
Distortion [?]
0.3 %
Vignetting [?]
-1.2 EV
Chr. aberration [?]
13 µm

DXOMARK Score

Best at f=20mm & f/4 [?]
16

Lens Metric Scores

Sharpness [?]
9 P-Mpix
Transmission [?]
3.2 TStop
Distortion [?]
0.7 %
Vignetting [?]
-0.8 EV
Chr. aberration [?]
22 µm