Fotga Auto-Focus AF Lens Mount Adapter for Four Thirds (4/3) Mount Lens to Micro Four Thirds (MFT,M4/3) Mount Camera,Olympus OM-D E-M1 MarkII,E-M5,E-M5 Mark II,Panasonic GH3,GH4,GH5,GH5s Dslr Cameras Compatible with 4/3 Lens to M4/3 (MFT/Micro Four Third) Mount Camera Support AF function;Exif Transmitting;Manual Aperture Control The adapter comes with the Gold-Plating Contact,which can help to connect your 4/3 Lens to M4/3 Camera,perfectly support AF and makes your old lens play a part in shooting Material: Aluminum alloy bayonet mount & plastic body,1/4 standard thread at the bottom, convenient for connection with tripod and other supports PLS NOTICE: As you connect the Micro to your lens, pls do not adapt it too tight, OTHERWISE it can not AF