When photographing birds, wildlife, sports or action, mobility can make the difference between nailing the shot or missing it altogether. The AF-S NIKKOR 500mm f/5.6E PF ED VR is a fraction of the size of most full-frame 500mm lenses, freeing you to be as nimble as your subject. Features: Significantly smaller and lighter thanks to a Phase Fresnel element Weather resistant Fluorine front element 3 extra-low dispersion elements Uncompromised image quality when using the TC-14E III teleconverter Nano Crystal Coat 4 stops of image stabilization Electromagnetic diaphragm for precise aperture control