Ziess Distagon T* 21mm f/2.8 ZF.2 is a precision wide angle lens producing exceptional color control resulting in breathtaking, high-contrast photos without color fringes. Its wide aperture delivers optimize performance in daylight and in lowlight shooting situations. The anti-reflective coating assist in reducing flare. The lens also employs a CPU interface supporting a camera's shutter priority, aperture priority, programmed exposure and manual exposure settings. This lens is compatible with Nikon F-Mount cameras; and is suitable for landscape, architecture, portrait, group, and commercial photography.