Super wide-angle lens designed for Nikon digital SLR cameras -
Hyper Sonic motor, 10 to 20 mm focal length, 14 elements in 10 groups, 3 special low dispersion and 3 aspherical lens elements
12-24mm autofocus zoom lens with f/4 maximum aperture. 2 Extra-Low Dispersion (ED) glass elements and 3 aspherical lens elements for superior optics. 11.8-inch close focus distance.