Adapter L39 M39 Lens to Micro M 4/3 M43 Adapter Ring for Leica L39-M4/3 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. You can shoot with manual mode or aperture priority mode . Package includes: Lens mount adapter x1 (Original Manufactory Package) Suitable For LENS: Leica M39 L39 CAMERA: Olympus E-P1 E-P2 E-P3 E-PL1 Panasonic DMC-G1, DMC-G2, DMC-GH1, DMC-GH2, DMC-GF1, DMC-GF2 DMC-G10