Fine finishing made with high standard precision. The adapter is made of black anodized aluminium (camera body mount) and brass silver (lens mount). It allows the use of Leica R lens on Olympus Camera body with four thirds system such as Panasonic Lumix DMC-L1, DMC-L10, Leica Digilux 3, Olympus E-450,  E-620, E-30, E-520, E-3, E-510, E-410, E-400, E-300, E-330, E-500, E-1 etc.. Although the lens will fit physically, aperture control and auto-focusing control are not retained. In this case "stop-down mode" will need to be used when metering since the lens does not have the ability to have its aperture controlled by the camera body. Focus to infinite is available. Note: 99% or more of all Leica mount R lenses are probably compatible with the adapter and camera.