The Nikkor 500mm f/4 P ED  is a professional level large aperture super-telephoto manual focus lens for Nikon F-mount 35mm film and digital SLR cameras. It's a lens that's been used for some of the worlds best wildlife and nature photography. It's a lens that produces top-tier optical performance and seriously high magnification without the additional weight required by a 600mm f/4 or autofocus motors; this combination of capabilities and top-level mechanical construction have made this Nikon design a particularly popular hit with photographers.