Fomito Electronic Auto Focus EF-NEX EF-EMOUNT FX Lens Mount Adapter for Canon EF EF-S Lens to Sony E Mount NEX A7/A7r/A7s Full Frame It is very important to compatible to Full-frame cameras (Sony Alpha A7/A7R/7S). Allows Auto Focusing with Canon EF/EF-S mount lenses. With removable 1/4" tripod mount thread. Full Range Aperture Control on your camera. Fully "IS"(image stablizer) Function Compatible and Firmware has been updated.