Originally made in Japan during the 1970s, this 2x tele-converter doubles the effective focal length of any SLR normal or telephoto lens with a Canon FL / Canon FD mount. For example, with this 2x single converter, a 50mm lens will become a 100mm and a 135mm will increase to a 270mm. 

The lens is clear and in very good condition as it comes with a bottom cap and case.