Nikon is a precision optical company with worldwide manufacturing, research and marketing capabilities. The Nikon name is equated with extraordinary photographic performance, innovation, precision and optical quality.PRODUCT FEATURES:The world's 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? to a narrow angle of 28? 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 smaller lens diameter, lighter weight and optimal image quality from center-to edge-to-corner on the image;3 Extra-Low Dispersion (ED) glass elements for minimized chromatic aberration and provide higher resolution and superior contrast;3 Aspherical lens elements for minimized distortion;Lightweight and compact design: similar to 17-35mm f/2.8 lens;Exclusive Silent Wave Motor enables ultra-high-speed autofocusing with exceptional accuracy and powerful super-quiet operation;[M/A] and [M] modes allow rapid switching between AF and MF operation;Internal Focusing (IF) design for smoother focusing and great body balance;Nikon D-type design provides precise distance information for flash and ambient light exposure processes;Rounded diaphragm to make out-of-focus elements appear more natural;G Type DX Nikkor is designed exclusively for use with Nikon Digital SLR models;Fully Compatible with D1, D1X, D1H, D2H and D100.