The f/1.4 aperture combined with Nano Crystal Coating and ED glass delivers exceptional low-light performance and sharpness with controlled flares. Its durable weather-sealed build and 12-blade diaphragm produce a painterly look with expressive bokeh and subtle highlight blooms. This lens is best for portrait and video shooters using Nikon F-mount DSLRs who need a wide-angle prime with organic rendering and shallow depth of field.