Canon EF-S 10-18 mm f/4.5-5.6 IS STM
6. Distortion
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The highest distortion level you see at 10 mm where it amounts to - 2.40%. At the longer focal lengths that aberration stops being even the slightest problem. At 14 mm it is practically zero (and more precisely +0.17%) and at 18 mm it increases a bit to +0.53%.
The result we got at 10 mm is exactly the same as the result of the Canon EF-S 10–22 mm at 10 mm focal length. The more expensive brother is a bit better at bigger focal lengths but once again those differences are tiny.
| Canon 50D, 10 mm | |||
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| Canon 50D, 14 mm | |||
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| Canon 50D, 18 mm | |||
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