This 11.1x high zoom ratio Sigma 18-200mm HSM OS DC Lens incorporates Sigma's OS function, and offers a broad shooting range from wide angle to telephoto. The optical technology enables easy handheld photography with a compact construction and length of just 87.7 mm, making it suitable for various scenes such as landscape, general photography and sport. FLD glass elements, which have performance equal to fluorite, SLD glass elements, and aspherical lens elements provide high image quality, throughout the entire zoom range. The Hyper Sonic Motor ensures fast and quiet auto-focusing