The AF-S NIKKOR 85mm f/1.4G Lens from Nikon is short telephoto prime lens designed for FX-format DSLR cameras, but when used with cameras with a DX-format sensor it has a 127.5mm equivalent focal length. It provides an effective focal length for distortion free portraiture as well as other telephoto applications. Its ultra fast f/1.4 maximum aperture is very effective in low light and along with the rounded 9-blade diaphragm will create natural out-of-focus backgrounds that will isolate your main subject for an impressive professional look.