Canon EF mount lens to Micro 4/3 camera body adapter allows the attachment of Canon EOS lenses (EF Mount) onto Panasonic Lumix G and Olympus OM-D and PEN series bodies. This MFT body to Canon lens adaptor allows a photographer to mount a Canon EF mount lens (from EOS cameras) to a Micro Four Thirds camera body by simply fitting the adaptor into the camera body.