Portrait-length prime is designed for FX-format Nikon F-mount cameras, however can also be used on DX models where it provides a 127.5mm equivalent focal length. Very bright f/1.4 maximum aperture benefits working in low-light conditions and offers great control over depth of field for isolating subjects and working with selective focus. One hybrid aspherical element is used to reduce distortion and spherical aberrations for greater sharpness and accurate rendering. An Ultra Multi-Coating has been applied to individual elements in order to reduce flare and ghosting for increased contrast and a neutral color balance. Ultrasonic Dual Linear motor delivers quick, quiet autofocus performance. An AF/MF switch is also featured for seamless switching between focusing modes. Internal focusing design maintains the overall lens length and prevents the front of the lens from rotating during use. Rounded nine-blade diaphragm contributes to a smooth and pleasing bokeh quality. Included lens hood helps to block stray light from causing flare and ghosting.