The Sigma DG 120-400mm APO HSM telephoto lens for Nikon cameras offers a maximum aperture of f/5.6 and a 3.3x magnification factor. With a Nikon F mount, this lens is designed for Nikon cameras and features a focal length range of 120-400mm. Its exterior is made of plastic, and it weighs 1750g. The lens also offers both auto and manual focus options, as well as an optical zoom of 3.3x. This high-quality telephoto lens from Sigma is ideal for capturing distant subjects with precision and clarity.