Pentax smc DA Star 55mm F1.4 SDM on Pentax K-5 vs Pentax smc DA 50mm f1.8 on Pentax K-3 vs Pentax smc FA 50mm F1.4 on Pentax K-5

COMPARISON SELECTION (3 selected items max.)

DXOMARK Score

Best at f=55mm & f/2 [?]
20

Lens Metric Scores

Sharpness [?]
8 P-Mpix
Transmission [?]
1.7 TStop
Distortion [?]
0.2 %
Vignetting [?]
-0.8 EV
Chr. aberration [?]
8 µm

DXOMARK Score

Best at f=50mm & f/2.8 [?]
25

Lens Metric Scores

Sharpness [?]
12 P-Mpix
Transmission [?]
2 TStop
Distortion [?]
0.1 %
Vignetting [?]
-0.8 EV
Chr. aberration [?]
2 µm

DXOMARK Score

Best at f=50mm & f/4 [?]
17

Lens Metric Scores

Sharpness [?]
8 P-Mpix
Transmission [?]
1.7 TStop
Distortion [?]
0.2 %
Vignetting [?]
-0.8 EV
Chr. aberration [?]
16 µm