Fine finish black anodized aluminium metal design with a brass silver ring the LMA-C/Y_M4/3 mount adapter allows Contax/Yashica lens to fit on any Micro Four Thirds camera body such as Panasonic G1/GH1/GF1 /G10/G2/GH2/GF2 and Olympus PEN E-P1/E-P2/E-PL1 and E-PL2. Although the lens will fit physically, automatic diaphragm, auto-focusing, or any other functions will not operate correctly while using this adapter. 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.