Combining a versatile normal focal length with fast design, the Nikon F-mount Irix 45mm f/1.4 is a useful prime lens characterized by its manual focus operation and weather-sealed design. The bright f/1.4 maximum aperture excels in low-light conditions and also offers increased control over depth of field for working with selective focus techniques. The optical design incorporates a series of specialized elements to reduce a variety of aberrations in order to produce sharp and color-accurate imagery.
Complementing the optical assets is a robust physical construction, dubbed Dragonfly, which incorporates extensive weather sealing to guard against dust and moisture. This manual focus lens also features a printed focus distance scale to benefit fast and accurate focusing, and a rounded nine-blade diaphragm contributes to a smooth bokeh quality.