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Use this Canon EF S 17 55mm f2.8 IS USM Zoom Lens with large aperture of f2.8 for select Canon Digital SLR cameras. This specially designed circular aperture produces a shallow depth of field, which creates background blur, drawing attention to the desired subject. There are 2 ultra low dispersion UD glass elements in order to deliver impressive image quality throughout the entire zoom range, with 2 spherical lens elements ensuring high contrast from one corner or the frame to the other. An image stabiliser lens group shift to compensate for camera movement, so image appears steady on the image plane. With the EF S 17 55mm f2.8 IS USM Zoom Lens autofocus can be achieved quickly and quietly as well as full time mechanical manual focusing.
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