SDM (Supersonic Direct Drive Motor) :Shoot discreetly with in lens, auto focus motor operation for quick, smooth and quiet performance
HD (High Definition): 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 (Extra Low Dispersion) glass lens elements deliver clear, high resolution imagery with outstanding edge to edge sharpness throughout the entire zoom range
WR (Weather Resistant) : Designed with eight specially designed seals to prevent intrusion of water; The lens also features Quick Shift
With a minimum focusing distance of just 28cm, this lens can capture subjects with a well defined sense of depth