Sonovel&reg; Auto Focus AF Canon EOS EF EF-S lens to Sony NEX II E Mount Adapter A7R This mount adapter ring is 100% compatible with original Canon EF - Sony NEX mount adapter, which supports auto focusing as original adapter. You can use Canon EF / EF-S mount lens to Sony NEX E mount mirrorless camera. Electronic contacts are built so that you can use auto focusing as using EOS digital SLR cameras. 1/4" tripod mount adapter is built in the adapter, can be installed or removed easily. Allow focus infinity.