The Canon 22x HD is a high quality 22x zoom lens for professional 2/3" remote video cameras. This model is highly versatile and can be used in a variety of professional applications, including teleconferencing, distance learning, and specialized broadcasting including sports coverage. The focal-length range is 7.6-168mm with a minimum object distance of 2.8' (0.9 m). Additionally, the lens comes equipped with a manually operated 2x extender which can be coupled with an external control unit.