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Lens review

Panasonic G 20 mm f/1.7 ASPH.

29 October 2010
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Arkadiusz Olech

5. Chromatic aberration

The lateral chromatic aberration shouldn’t disturb our work with the Panasonic 1.7/20. Its level is only weakly correlated with the aperture values and it increases slightly on stopping down. Near the maximum relative aperture the chromatic aberration amounts to 0.07% and it rises to less than 0.09% later on. According to our criteria its level is low with the tendency of nearing the border between low and medium values.

Panasonic G 20 mm f/1.7 ASPH. - Chromatic aberration

Additionally it’s worth emphasizing that the Panasonic 1.7/20 corrects the longitudinal chromatic aberration well. You can see it in the photo of our autofocus efficiency chart, published in chapter 10. Contrast edges, even those outside the depth of field, don’t have any colourful cast and it is a proof of good performance of the tested lens.


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Panasonic G 20 mm f/1.7 ASPH. - Chromatic aberration



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