Canon EF-S 55-250 mm f/4-5.6 IS
6. Distortion
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When we deal with a lens with such a focal length range we should expect the distortion to be a bit smaller. It is not troublesome at the shorter focal lengths, since at 55mm focal length it reaches only – 0.37% and then quickly reaches zero, but then it changes from minus to plus and starts growing to reach 1.02% at the 130mm focal length. It grows a little bit more to reach 1.07% at 250mm focal length. The 1% value is visible in some of the pictures, so it would be nice to have the distortion smaller.
However, we honestly have to admit that the Canon’s 55-250 IS results, even with its bigger focal length range, are much better than the Nikkor 55-200 VR, which scored as high as 1.65% in our tests.
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