The AF-S DX ZOOM-NIKKOR 17-55mm F/2.8G IF-ED lens delivers superb image quality. This lens provides both stunning sharpness and beautiful background blur. Combined with your DX-format camera, its fine resolution and fast f/2.8 fixed aperture deliver exceptional photos and HD video. This lens will satisfy everyone, from professionals on assignment to aspiring high-end photographers who value image quality. Features f/2.8 fixed aperture 3.2x zoom ED (extra-low dispersion) glass The versatile standard zoom range of this lens makes it an ideal walk-around lens - you'll keep it on your camera all the time.