Nikkor 55mm F/1.2 AI is a bright, standard lens. This manual focus prime lens has NAI metering prong capabilities with one row of f/stops. It employs one of the fastest lens speed in its group. At full aperture, the lens has a pleasing contrast and sharpness. The lens features seven element in six groups optical construction. The lens has 43° viewing angle, 1.7ft close focusing distance producing 1:7.9 magnification ratio and 52mm filter thread. The Nikkor 55mm f/1.2 is suitable for an array of photographic applications, including landscapes, candid, and portraiture.