Lens review

Tokina AF 193 19-35 mm f/3.5-4.5

10. Autofocus

The performance of the tested Tokina’s autofocus motor is average. It is not a speed fiend but it is not the slowest mechanism either. Its work is audible but not very loud. The most serious reservations you can have when it comes to its accuracy. Looking at the focus ring it was visible to the naked eye that after each prefocusing it positions itself differently although the test chart didn’t move. Fortunately this lens’s short focal lengths combined with moderate fastness make the depth of field significantly deep and the mistakes of the autofocus – not so painful. It doesn’t change the fact that the number of misses in studio conditions reached as much as 19%. Very weak indeed…

Fortunately, the autofocus motor didn’t have any front or back focus tendencies on either of all three bodies, available in the test (Nikons D50, D80 and D200).