The Canon HDgc KJ20x5.8-KRS is a 20x telephoto lens designed for 2/3 inches HD cameras. As HDTV becomes the standard for television broadcasts, more production facilities are looking to originate projects in high definition. Canon's line of HDgc lenses provide a cost effective alternative to higher priced high definition lenses, offering greater flexibility. The KJ20x5.8-KRS strikes a perfect balance between performance and portability, equipped with features such as internal focus and shuttle-shot programmable positioning. The focal-length range is 8.5 to 170mm with a minimum object distance of 0.9 meters (3 feet.)