Sony DT 55-200mm F4-5.6 SAM on Sony SLT Alpha 77 II vs Nikon AF-S DX VR Zoom-Nikkor 55-200mm f/4-5.6G IF-ED on Nikon D300s vs Pentax smc PENTAX DA 50-200mm F4-5.6 ED on Pentax K10D

COMPARISON SELECTION (3 selected items max.)
Sony DT 55-200mm F4-5.6 SAM
Sony DT 55-200mm F4-5.6 SAM

DXOMARK Score
Best at f=55mm & f/4 [?]
14

Lens Metric Scores

Sharpness [?]
15 P-Mpix
Transmission [?]
4.8 TStop
Distortion [?]
0.4 %
Vignetting [?]
-1 EV
Chr. aberration [?]
10 µm
Nikon AF-S DX VR Zoom-Nikkor 55-200mm f/4-5.6G IF-ED
Nikon AF-S DX VR Zoom-Nikkor 55-200mm f/4-5.6G IF-ED

DXOMARK Score
Best at f=70mm & f/4.2 [?]
9

Lens Metric Scores

Sharpness [?]
6 P-Mpix
Transmission [?]
5.2 TStop
Distortion [?]
0.4 %
Vignetting [?]
-1 EV
Chr. aberration [?]
8 µm
Pentax smc PENTAX DA 50-200mm F4-5.6 ED
Pentax smc PENTAX DA 50-200mm F4-5.6 ED

DXOMARK Score
Best at f=80mm & f/4.5 [?]
8

Lens Metric Scores

Sharpness [?]
5 P-Mpix
Transmission [?]
5.2 TStop
Distortion [?]
0.3 %
Vignetting [?]
-1 EV
Chr. aberration [?]
7 µm