The Fujinon HA25x11.5BERD is a 2/3" telephoto lens with 25x optical zoom. The lens comes with a 2x extender for instant telephoto. Known for their high build quality and precision optics, Fujinon lenses have become the industry standard for professional video applications all over the world. This lens will not only resolve images for high-definition acquisition, it's also equipped with a wide array of extra features such as QuickZoom technology. Quickzoom makes it easy to verify focus by allowing instant telephoto zoom capability.