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Lens review

Olympus M.Zuiko Digital 75 mm f/1.8 ED

5 October 2012
Arkadiusz Olech

10. Autofocus

The tested lens is equipped in a very efficient focusing mechanism, based on MSC technology (Movie and Still Compatible). Its work is beyond reproach. Even on an older model, such as the E-PL1, it works silently and so efficiently that focusing rarely takes more than 0.5 of a second.

The accuracy of the autofocus is also splendid. In studio conditions the lens didn’t miss at all! What’s more, even if you make the definition of an error more strict and you change the limit from 20% to 10% deviations (as, traditionally, a miss means a measurement which diverge from the maximum result, reached at a given aperture, by over 20% ) there will be still no misses!

The photo of our autofocus testing chart we take usually from a very short distance, so the depth of field is the shallowest possible and every failure – visible and pronounced. In such conditions the Olympus 1.8/75 seems to set the focus correctly but with a slight tendency of shifting the middle of the depth before the proper object.

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Olympus M.Zuiko Digital 75 mm f/1.8 ED - Autofocus