This AF-S Zoom-Nikkor 17-35mm f/2.8D IF-ED lens is an ultra-wide-angle rectilinear zoom lens with a range of professional-level features that yield overall superior performance. In addition to providing the shortest close-focusing distance in its class 0.28m (0.9 ft.) throughout the entire zoom range, the lens also features a fast constant maximum aperture of f/2.8 at all focal lengths. It is ideal for photojournalism and general professional-level photographic needs.