LensTip.com

Lens review

Tokina AT-X 165 PRO DX AF 16-50 mm f/2.8

9 June 2010
Arkadiusz Olech

10. Autofocus

The focusing mechanism works relatively fast. Of course it isn’t on par with the fastest USM/HSM/SWM motors but it should be rather satisfactory to every amateur photographer during an ordinary shooting session. The autofocus is not noiseless because you can hear a distinct buzz while working but the sound is not annoying and you can get used to it very fast.

You can’t have any serious reservations when it comes to the accuracy of the autofocus because in the studio conditions it missed in only 2% of all shoots. However, at the maximum relative aperture you could notice a slight back focus tendency.

In the case of the Canon 20D, the speed and the loudness of the AF mechanism is very much alike. Its accuracy decreases to 7% but still such a result is relatively good.


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Tokina AT-X 165 PRO DX AF 16-50 mm f/2.8  - Autofocus