LensTip.com

Lens review

Olympus M.Zuiko Digital 300 mm f/4.0 ED IS PRO

30 June 2016
Arkadiusz Olech

10. Autofocus

The autofocus unit of the Olympus 4/300 is noiseless and appropriately fast. Running through the whole distance scale and setting the focus takes about 0.5-0.6 of a second. Of course after employing a focus limiter option (from 4 meters to infinity) you can shorten that time to about 0.3-0.4 sec. After attaching the tele-converter to the lens the whole process lasts a bit longer but only slightly so (by 0.1-0.2 sec.)

The tested lens didn’t miss even once while we tested it in studio conditions so the accuracy of its autofocus unit we assess very well.

We also didn’t observe any front or back focus tendencies. What’s important, this statement concerns all combinations we used in our test, including changes of bodies and the addition of the tele-converter.


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