NNano Crystal Coat
Nano Crystal Coat is a lens coating which provides an extremely high reduction in reflections over a wide wavelength range by reducing the reflection of light that comes in perpendicular to the lens compared with conventional anti-reflection coatings. Furthermore, the Nano Crystal Coat reduces ghosts and flare that are caused by light obliquely coming through the lens—a problem difficult to remove with conventional coatings. Nano Crystal Coat employs multiple layers of Nikon's extra-low refractive index coating, which features ultra-fine crystallized particles of nanometer size. Lenses that feature the Nano Crystal Coat are designated with an N abbreviation on the lens barrel.