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Lens review

Canon EF 28-135 mm f/3.5-5.6 IS USM

22 September 2007
Robert Olech

6. Distortion

The tested Canon once again performs better than its equivalent for APS-C, which, in this category, shouldn’t be a surprise. A wider focal length range and the full frame design keep the distortion away. The only problem can be observed starting at 28 mm, where we observed barrel distortion at an acceptable level of -2.5%. When the focal length increases the distortion quickly disappears. At 50 mm it decreases to almost zero (0.08%) and changes into pincushion distortion. From then on it starts increasing but, fortunately, very slowly. At 85 mm the distortion reaches 0.58% and at 135 mm it is 0.70%.

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Canon EF 28-135 mm f/3.5-5.6 IS USM - Distortion

Canon EF 28-135 mm f/3.5-5.6 IS USM - Distortion

Canon EF 28-135 mm f/3.5-5.6 IS USM - Distortion

Canon EF 28-135 mm f/3.5-5.6 IS USM - Distortion