Angenieux is a French Lens Manufacturer that specializes in Zoom Lenses. Pierre Angenieux himself was one of the inventors of the zoom lenses around 1930’s.
The 45-120 is a Telephoto Compact Spherical Zoom Lens. This lens is part of the Optimo Family, which are the lightest and the most compact series of cine zoom lenses in the industry. They are perfectly suited for projects requiring modern, lightweight and compact digital cameras and Steadicam work.