Photographers will enjoy an impressive focal range when they snap this Sigma II HSM OS DC lens onto a camera. The wide focal length moves from 18 mm to 200 mm to make this Sigma camera lens for Nikon extremely versatile. It can be used to take close portraits and wide landscapes, not to mention everything in between. The 18 mm - 200 mm f/3.5-6.3 lens aperture creates perfect lighting in every single shot at any focal length. Compatible for Nikon cameras, the Sigma II HSM OS DC lens fits on several makes and models of cameras even outside the Nikon brand. At just over 1 lb, this 18 mm - 200 mm f/3.5-6.3 lens adds light weight to any camera. Made with F Low Dispersion glass elements, the Sigma camera lens for Nikon fixes and prevents color aberration that might interfere with photographs. The addition of a Sigma II HSM OS DC lens to the camera makes it much easier to take crisp, clear photographs that look professional and beautiful every time.