Reviews and Problems with Canon EF-S 17-55mm f/2.8 IS USM
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16 April 2008
Excerpt: The Canon EF-S 17-55mm f/2.8 IS USM lens is a fast lens with a maximum aperture of f/2.8, so you can use it to obtain a shallow depth-of-field or help with reasonable exposures in lowlight situations. It comes with Canon's IS (Image Stabiliser) technology, which allows you to drop your shutter speeds slightly when needed and compensates for camera shake as well.