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

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

27 July 2010

Arkadiusz Olech

6. Distortion

In this category the Tokina has nothing to boast of, even though its focal lengths range is narrower than that of its competitors. At 19 mm it shows a significant barrel distortion of –3.7%. Let’s remind that the Tamron 17-35 mm at 17 mm had the distortion reaching –3.1%, the Canon 17-40 mm –2.7% and the Sigma 17-35 mm – only -1.7%. The Tokina fares the worst of this bunch.

Also in the middle of the range the Tokina compares unfavorably with its competitors, although its distortion is just –1.77% there so significantly lower. At 35 mm the distortion remains visible, with its value measured by us as –1.07%; in the case of other lenses of this class, though, the distortion was reaching zero level there.

It would be difficult to praise the Tokina in this category but I must admit it still fares better than some kit lenses designed to work on a small sensor by definition.

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