Canon EF 100-400mm f/4.5-5.6L IS USM on Canon EOS 7D vs Canon EF 100-400mm f/4.5-5.6L IS II USM on Canon EOS 7D Mark II vs Pentax smc DA Star 300mm F4 ED (IF) SDM on Pentax K-3

COMPARISON SELECTION (3 selected items max.)
Canon EF 100-400mm f/4.5-5.6L IS USM
Canon EF 100-400mm f/4.5-5.6L IS USM

DXOMARK Score
Best at f=100mm & f/4.5 [?]
9

Lens Metric Scores

Sharpness [?]
6 P-Mpix
Transmission [?]
6 TStop
Distortion [?]
0.1 %
Vignetting [?]
-0.3 EV
Chr. aberration [?]
6 µm
Canon EF 100-400mm f/4.5-5.6L IS II USM
Canon EF 100-400mm f/4.5-5.6L IS II USM

DXOMARK Score
Best at f=200mm & f/5 [?]
15

Lens Metric Scores

Sharpness [?]
9 P-Mpix
Transmission [?]
5.6 TStop
Distortion [?]
0.1 %
Vignetting [?]
-0.4 EV
Chr. aberration [?]
4 µm
Pentax smc DA Star 300mm F4 ED (IF) SDM
Pentax smc DA Star 300mm F4 ED (IF) SDM

DXOMARK Score
Best at f=300mm & f/4 [?]
17

Lens Metric Scores

Sharpness [?]
9 P-Mpix
Transmission [?]
4.4 TStop
Distortion [?]
0.1 %
Vignetting [?]
-0.5 EV
Chr. aberration [?]
6 µm