The Olympus 17.5-42mm f/3.5-5.6 Zuiko Zoom Lens is a very inexpensive,compact and lightweight lens originally made for the Japanese market. It offers a 2.57x zoom range with coverage from medium wide-angle to classical telephoto portrait. It is the ideal lens for general every-day use compatable with all E serier digital SLR cameras.
The lens features 7 elements in 7 groups, including and 2 aspherical elements. Its equivalent focal length in 35mm terms is 35-84mm.
Internal focusing makes the overall length of the lens remain constant during focusing.