Sigma 18-35mm F1.8 DC HSM A Canon on Canon EOS 760D vs Pentax HD DA 20-40mm F2.8-4 ED Limited DC WR on Pentax K-3

COMPARISON SELECTION (3 selected items max.)
Sigma 18-35mm F1.8 DC HSM A Canon
Sigma 18-35mm F1.8 DC HSM A Canon

DXOMARK Score
Best at f=18mm & f/1.8 [?]
28

Lens Metric Scores

Sharpness [?]
16 P-Mpix
Transmission [?]
1.8 TStop
Distortion [?]
0.3 %
Vignetting [?]
-1.1 EV
Chr. aberration [?]
7 µm
Pentax HD DA 20-40mm F2.8-4 ED Limited DC WR
Pentax HD DA 20-40mm F2.8-4 ED Limited DC WR

DXOMARK Score
Best at f=30mm & f/3.5 [?]
17

Lens Metric Scores

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