Built for the rigors of professional use and uncompromised optical performance, this new Rokinon 14mm F2.8 AF lens for Nikon easily meets or exceeds the performance characteristics of other professional/ “Luxury” ultra-wide angle lenses. Designed from the ground up specifically for Nikon digital full frame dslr's, this ultra-wide angle lens offers a bright F2.8 aperture, uncompromised optical performance, sealing against the elements and a rounded seven blade aperture for pleasing bokeh and star effects. Compared to others in its class, the Rokinon 14mm provides a reduced size and weight, a wider angle of view of 116.6 Degree, and its new AF design takes advantage of the minimized weight and movement of the focusing lens group for accurate, faster, and even quieter in operation than competing systems.