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
• DX Nikkor is designed exclusively for use with Nikon Digital SLR models D1, D1X, D1H, D2H, D100 and D

Specifications:

• Focal Length: 17-55mm
• Maximum Aperture: f/2.8
• Picture Angle: 79° ~ 28° 50´
• Lens Construction: 14 elements in 10 groups
• Lens Drive: Silent Wave Motor
• Extra Low Dispersion (ED) Lens: 3 Elements
• Aspherical Lens: 3 Elements All Glass
• Focusing Type: Internal Focus
• Minimum Shooting Distance: 14.2 in. to infinity
• Max. Reproduction Ratio: 1/5 (0.20 at Tele)
• Minimum F stop: 22
• Aperture Blade: 7 elements (Rounded)
• Lens Hood: Included
• Filter Size: 77mm
• Case: Soft case, optional
• Dimensions: Approx. 3.4 x 4.4 inches
• Weight: Approx. 26.6 oz.