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Panasonic G 20 mm f/1.7 ASPH.

29 October 2010
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Arkadiusz Olech

10. Autofocus

In cameras used in the test, so in the Olympus E-PL1 and the Panasonic G2 the autofocus work is based on the contrast detection method. As a result the focusing is not a fast process. The lens-plus-camera system first goes to the area close to the right position, passes it and then goes back and only afterwards the focus is set. The whole process can take as long as over one second. What’s more, you can hear a silent whirr during the work.

The autofocus accuracy is absolutely beyond reproach for a change. In lab conditions with good lighting the autofocus didn’t miss one single time.

We also didn’t notice any front or back focus tendency, which can be seen very well in the sample shot presented below.


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Panasonic G 20 mm f/1.7 ASPH. - Autofocus



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