The Tamron SP AF 10-24 mm F/3.5-F/4.5 Lens is an Ultra Wide-Angle Lens for Nikon digital SLR cameras that will leave photographers wondering how they ever did without it. With both ultra-wide and semi-wide-angle settings the Tamron B001 Ultra Wide-Angle Lens is ideal for the imaginative photographer who likes to get creative without having to change lenses. With a 24-cm minimum focus distance, the Tamron B001 Ultra Wide-Angle Lens allows users to get up-close and personal with their subject for that perfect shot, regardless of the zoom range they use. This Ultra Wide-Angle Lens for Nikon digital SLR cameras has a focal length of 10-24 mm, which means it covers most of the angles a DSLR photographer needs to. The Tamron B001 Ultra Wide-Angle Lens is able to reduce distortion and spherical aberrations because of its optical system that utilises glass-moulded large-aperture aspherical lenses. This Tamron SP AF 10-24 mm F/3.5-F/4.5 Lens offers a fast aperture, which aids users who are shooting in low light as well as creating out of focus background effects.