LensTip.com

Lens review

Canon EF-S 10-22 mm f/3.5-4.5 USM

23 September 2007
Arkadiusz Olech

3. Build quality

The Canon EF-S 10-22 mm, in spite of its small focal lengths and medium aperture, is sizable. It is 90 mm long and 84 mm long in its diameter. This is a result of the need to use big lenses, which, on a small APS-C detector, are supposed to achieve a field of view of 107.5 deg.

In this case the large size is kind of an asset. The construction was designed in such a way that while zooming all the moving elements are inside this sturdy body, which does not change its outer size. This is definitely good news for filter users because when the filters are settled in a Canon 10-12 mm body, they stay in place, do not move forward or backwards, nor do they rotate.

The USM motor had a great influence on the large size and heaviness of the tested Canon. This cannot be taken as a disadvantage because every photographer will gladly sacrifice compression to gain quiet and a good functioning autofocus. Additionally, when we want to change into manual zooming, the Canon is equipped with a comfortable zooming ring and a clear distance scale.


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The comparison of the Canon EF-Sa 10-22 mm and an L-grade EF-S 18-55 mm is shown in the picture below.

Canon EF-S 10-22 mm f/3.5-4.5 USM - Build quality


The Canon EF-Sa 10-22 mm has quite a complicated optic construction containing 13 lenses in 10 groups. Of course, you cannot use regular lenses in such a wide angle zoom, so, Canon decided to use as many as three aspherical and one low dispersion glass (UD).

Canon EF-S 10-22 mm f/3.5-4.5 USM - Build quality