Nano Crystal Coat is an antireflective coating that originated in the development of NSRseries (Nikon Step and Repeat) semiconductor manufacturing devices. It virtually eliminates internal lens element
reflections across a wide range of wavelengths, and is particularly effective in reducing ghost and flare peculiar to ultra-wideangle lenses. Nano Crystal Coat employs multiple layers of Nikon's outstanding extra-low refractive index coating, which features ultrafine crystallized particles of nano size (one nanometer
equals one millionth of a mm). Nikon now proudly marks a world first by applying this coating technology to a wide range of lenses for use in consumer optical products.