Nikon AF-S DX NIKKOR 17-55mm f/2.8G IF-ED Zoom Lens with Auto Focus for Nikon DSLR Cameras International Version (No war

Lens-making is an art--Nikon artisans craft Nikkor optics from the finest materials, taking pride in adding their intellect and technique to bring the world's finest lenses to life. They push the leading edge of lens-making in their effort to provide the "glass" that makes the world's greatest pictures. The Nikon 17-55mm f2.8G ED-IF AF-S DX is the world's first constant f2.8 3.2x zoom lens developed exclusively for use with Nikon DX Format. The 3.2x zoom covers from a wide angle of 79 degrees to a narrow angle of 28 degrees 50 minutes (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. Three Extra-Low Dispersion (ED) glass elements minimize chromatic aberration and provide higher resolution and superior contrast. Three aspherical lens elements minimize distortion in a lightweight and compact design similar to 17-35mm f2.8 lens. The 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 design for smoother focusing and great body balance. Nikon D-type design provides precise distance information for flash and ambient light exposure processes. The rounded diaphragm makes out-of-focus elements appear more natural. The G Type DX Nikkor is designed exclusively for use with Nikon Digital SLR models. ED glass: An essential element of Nikkor telephoto lenses Nikon developed ED (Extra-low Dispersion) glass to enable the production of lenses that offer superior sharpness and