Nikon is a precision optical company with worldwide manufacturing, research and marketing capabilities. The Nikon name is equated with extraordinary photographic performance, innovation, precision and optical quality.PRODUCT FEATURES:Versatile telephoto zoom lens for photomicrography;Close-ups to approximately 14.6 in. (1:1.32 reproduction ratio);Effective aperture does not vary with focus distance;Rounded diaphragm opening makes out-of-focus elements appear more natural;ED glass elements for sharp, high-contrast images.