Nikon - 17-55mm f/2.8G IF-ED AF Zoom Lens .The AF-S DX Zoom-Nikkor 17-55mm f/2.8G IF-ED significantly expands the range of DX-Nikkor lenses and is expected to become the standard lens for Nikon digital SLR camera users. By virtue of being DX-Nikkor, designed exclusively for DX-format image sensors in Nikons digital SLR cameras, this new lens is not only compact and light-weight, but also offers outstanding edge-to-edge sharpness and image quality.The Nikons first constant f/2.8 3.2x zoom lens developed exclusively for use with Nikon DX Format.3.2x zoom covers from a wide angle of 79-degrees to a narrow angle of 28-degrees 50 (equivalent to 25.5mm to 85.5mm for 35mm format) and is ideal for architecture, landscape, groups shots and portraits.DX design enables a combination of wider angle-of-view with optical characteristics that are optimized for Nikon digital SLR camera sensors.Nikon DX design produces a smaller image circle (the size of the image that is projected by the lens on to the sensor) enabling small

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