Canon EF-S 10-22mm f/3.5-4.5 USM purple fringing comparison
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To measure and compare the Canon 10-22mm's purple fringing caused by lens chromatic aberrations and sensor
blooming, we photographed a test chart with areas of very high contrast
using it and a number of rival lenses.
We tested each lens at its
widest and longest focal lengths with the aperture wide open using a Canon
EOS-400D in Aperture Priority mode. The crops are taken from the upper left
corner of the chart and presented here at 100%.
The Canon EF-S 10-22mm exhibits a little purple fringing
at its widest position in line with the others. Fringing is virtually absent
at the long end, again in line with the other three. |
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Canon EF-S 10-22mm f/3.5-4.5 USM |
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Canon EF-S 17-85mm f/4-5.6 IS USM |
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Canon EF-S 18-55mm f/3.5-5.6 |
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Canon EF-S 17-55mm f/2.8 IS USM |
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10-22mm EF-S at 10mm f3.5 |
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17-85mm EF-S at 17mm f4.0 |
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18-55mm EF-S at 18mm f3.5 |
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17-55mm EF-S at 17mm f2.8 |
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10-22mm EF-S at 22mm f4.5 |
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17-85mm EF-S at 85mm f5.6 |
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18-55mm EF-S at 55mm f5.6 |
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17-55mm EF-S at 55mm f2.8 |
Canon EF-S 10-22mm f/3.5-4.5 USM macro comparison
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10-22mm EF-S at 22mm f8 (35mm equiv)
Max area of 124x82mm |
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To measure and compare the Canon 10-22mm's macro performance we photographed
a chart using it and a number of rival lenses at a focal length and distance which
delivered the maximum possible reproduction.
The dark lines are 10mm apart and the result is not cropped. Smaller areas
are preferred in this test.
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| The image above was taken with the Canon EF-S 10-22mm zoomed-into 22mm f8. With the lens positioned at its closest focusing distance, it delivered an area measuring 124x82mm, coincidentally identical to our measurement taken with the EF-S 17-55mm. Geometric distortion, as detailed on the next page, is respectably low, but the relatively large area won't get any macro enthusiasts excited. To be fair though, the EF-S 10-22mm isn't designed to produce large reproductions. It is possible though to get pretty close to a subject while maintaining a large depth of field, as illustrated in our Gallery. The macro result here is also significantly better than the 166x110mm area captured by the EF 17-40mm on a full-frame Canon EOS 5D. |
Canon EF-S 17-85mm f/4-5.6 IS USM |
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Canon EF-S 18-55mm f/3.5-5.6 |
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Canon EF-S 17-55mm f/2.8 IS USM |
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17-85mm EF-S at 85mm f8
Max area of 104x70mm |
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18-55mm EF-S at 55mm f8
Max area of 66x44mm |
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17-55mm EF-S at 55mm f8
Max area of 124x82mm |
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