Description: M42 mount lens for Olympus / for Panasonic Micro 4/3 adapter There is no ROM port on the ring so diaphragm control of the lens is set manually It is possible to make macro rings and other accessories It allows to infinity focus Material: Anodized aluminum metal Specification: Diameter: Approx. 36mm / 1.69inch Material: Metal Suitable for: M42 mount lens For Olympus GF1, GF2, GF3, GF5, GF6, G1, G2, G3, G6, GX1, GH1, GH2 and GH3 Camera For Panasonic: E-M1, E-P1, E-P2, E-P3, E-P5, E-5, E-PM1, E-PM2, OM-D, E-M5, E-PL1, E-PL2, E-PL3 and E-PL5 Camera Package Includes: 1 Piece Fotga M42 to Mirco 4 /3 Lens adapter Note: Although the lens physically fits, auto-diaphragm, auto-focusing, or any other function will not work properly during the use of this adapter Since the lens does not have the ability to have its apeture controlled by camera body. You can shoot with manual mode or apeture time automatic