Nikon AF-S FX NIKKOR 50mm f/1.8G Special Edition Fixed Zoom Lens with Auto Focus for Nikon DSLR Cameras Classically styled 50mm FX-format prime (fixed focal length) lens designed to match the Nikon DF but equally stylish on any Nikon D-SLR Fast f/1.8 maximum aperture for brilliant low light performance, freezing fast action with high shutter speeds and beautifully blurred backgrounds (bokeh) Superb NIKKOR optics and Nikons innovative Silent Wave Motor (SWM) for ultra-fast, near silent precision autofocus with seamless manual override Compact, lightweight designan outstanding travel companion and everyday lens