Versatile zoom lens covers standard to medium-telephoto ranges. It provides a maximum aperture of F3.5 - 5.6 over the zoom range. This lens is constructed to reduce various aberrations including colour aberrations while providing high contrast and high resolution throughout the entire image field at maximum aperture. It has a Built-in DC motor to assure smooth, quiet, high-speed autofocus operation.Treated with state-of-the-art HD technology; a high grade, multi-layer coating, allowing the user to capture crisp, high-contrast images free of flare and ghosting, even under demanding lighting conditions. ED glass lens elements deliver clear, high resolution imagery with outstanding edge-to-edge sharpness throughout the entire zoom range. It has eight specially designed seals to prevent intrusion of water.