LensTip.com

Lens review

Olympus M.Zuiko Digital 7-14 mm f/2.8 ED PRO

9 February 2016
Arkadiusz Olech

10. Autofocus

The autofocus mechanism of the tested lens is silent and quick. The time needed for focusing is so short that it was actually very difficult to measure it. Running through the whole scale and confirming the focus takes less than 0.2 of a second, a truly sensational result. That time doesn’t depend on the direction of the movement of the mechanism.

We didn’t have also any problems with the accuracy of the autofocus either. Both in the case of studio and outdoor shooting sessions the autofocus efficiency amounted to practically 100 percent.

When it comes to the front or back focus tendency the photos below seem to suggest that the lens had back focus on both bodies we used in our test. Still it is not exactly true. It is a result of deformations stemming from the fact that we were literally forced to ‘brush’ the front element against our testing chart in order to take photos of such type. The curvature of the field of course contributes to it as well – we described that effect in our resolution chapter. By the way it is obvious that the central part of the frame the focus was set on is very sharp; it means the aim remains within the depth of field range.


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E-PL1, 14 mm, f/2.8
Olympus M.Zuiko Digital 7-14 mm f/2.8 ED PRO - Autofocus
E-M10, 14 mm, f/2.8
Olympus M.Zuiko Digital 7-14 mm f/2.8 ED PRO - Autofocus