The Leica 70-180mm f/2.8 is a rather rare lens with phenomenal character, style, and personality. This specific lens received seamless delrin focus, iris, and zoom gears as well as an 80mm front ring to allow for seamless operation with industry standard accessories. In order to properly install the zoom gear, the support foot of the lens was modified to a shorter length. The zoom lens also received a standard aperture de-click and damping treatment. This is a relatively quick and easy way to get the most out of this amazing lens. ...Not to be confused with our complete rehousing project that you can find more about here.