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Canon EF-S 10-22mm f/3.5-4.5 USM Gordon Laing, February 2007

Outdoor
/ Resolution / Corner sharpness / Fringe and macro / Geometry / Vignetting

 
Canon EF-S 10-22mm f/3.5-4.5 USM geometry comparison (shortest focal length)


Canon 10-22mm wide angle geometry test
10-22mm EF-S at 10mm f8 (16mm equiv)
Distortion: 3.59% barrel


  To measure and compare the Canon 10-22mm's geometric distortion we photographed a test chart consisting of a grid pattern, using it and a number of rival lenses.

The lenses were tested at their widest focal lengths with an aperture of f8 using a Canon EOS-400D in Aperture Priority mode.

The images were analysed with Imatest using 5th Order line calculation and the full areas presented here at a reduced resolution.
The image above was taken with the Canon EF-S 10-22mm at 10mm f8. Barrel distortion was measured at 3.59% which is remarkably low considering the extreme wide angle coverage at this focal length. It's roughly comparable to the distortion you'll experience with the EF-S 18-55mm when it's zoomed-out, and a significant improvement over the EF-S 17-85mm at 17mm. It's also worth comparing against the EF 17-40mm tested on a full frame body, which delivers coverage almost as wide (17mm actual versus 16mm equivalent). In our EF 17-40mm review, geometric distortion at 17mm on an EOS 5D was measured at 6.39% - considerably higher. An impressive result here for the EF-S 10-22mm.


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Canon EF-S 17-85mm f/4-5.6 IS USM
Canon EF-S 18-55mm f/3.5-5.6
Canon EF-S 17-55mm f/2.8 IS USM
Canon 17-85mm wide angle geometry test
Canon 18-55mm wide angle geometry test
Canon 17-55mm wide angle geometry test
17-85mm EF-S at 17mm f8
Distortion: 5.71% barrel
  18-55mm EF-S at 18mm f8
Distortion: 3.35% barrel
  17-55mm EF-S at 17mm f8
Distortion: 2.87% barrel



Canon EF-S 10-22mm f/3.5-4.5 USM geometry comparison (longest focal length)

Canon 10-22mm telephoto geometry test

10-22mm EF-S at 22mm f8 (35mm equiv)
Distortion: 0.24% barrel

 

To measure and compare the Canon 10-22mm's geometric distortion we photographed a test chart consisting of a grid pattern, using it and a number of rival lenses.

The lenses were tested at their longest focal lengths with an aperture of f8 using a Canon EOS-400D in Aperture Priority mode.

The images were analysed with Imatest using 5th Order line calculation and the full areas presented here at a reduced resolution.





The image above was taken with the Canon EF-S 10-22mm at 22mm f8. While most lenses exhibit pincushion distortion when zoomed-in, the EF-S 10-22mm showed barrelling. This however isn't that surprising considering the lens is still quite wide even when zoomed-in, and more importantly the actual degree of distortion at just 0.24% is very low. Judging from this and the above result, the EF-S 10-22mm is a good performer when it comes to geometric distortion, which will come as a relief to anyone shooting buildings indoors or out.

Canon EF-S 17-85mm f/4-5.6 IS USM
Canon EF-S 18-55mm f/3.5-5.6
Canon EF-S 17-55mm f/2.8 IS USM
Canon 17-85mm telephoto geometry test
Canon 18-55mm telephoto geometry test
Canon 17-55mm telephoto geometry test
17-85mm EF-S at 85mm f8
Distortion: 0.967% pincushion
  18-55mm EF-S at 55mm f8
Distortion: 0.389% pincushion
  17-55mm EF-S at 55mm f8
Distortion: 1.09% pincushion

Canon EF-S 10-22mm results continued...

Outdoor / Resolution / Corner sharpness / Fringe and macro / Geometry / Vignetting
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