Normal-length prime is designed for FX-format Nikon F-mount cameras, however can also be used with DX models where it provides a 75mm equivalent focal length.. Fast f/1.4 maximum aperture affords extensive control over depth of field for achieving selective focus effects and also benefits working in low-light conditions.. Super Integrated Coating has been applied to lens elements to minimize surface and internal reflections for a marked reduction in lens flare and ghosting.. Silent Wave Motor affords quick, quiet, and precise autofocus performance along with full-time manual focus override.. Rounded nine-blade diaphragm contributes to a pleasing bokeh quality.