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Lens review

Pentax smc D FA 100 mm f/2.8 Macro WR

18 March 2011
Arkadiusz Olech

5. Chromatic aberration

Looking at the photos of the autofocus chart, presented in chapter 10, you can notice that areas behind the focal point are slightly yellowish and these in front of it have blue tint. It means the longitudinal chromatic aberration is not corrected in a perfect way but fortunately its level is not very high.

When it comes to the lateral chromatic aberration, the lens’s performance is shown on the graph below.

Pentax smc D FA 100 mm f/2.8 Macro WR - Chromatic aberration



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The aberration is small at the maximum relative aperture, in the f/4.0 – f/8.0 range it nears the medium level and on more significant stopping down it becomes low again. The overall picture is positive, then.

Pentax smc D FA 100 mm f/2.8 Macro WR - Chromatic aberration