VILTROX EF-NEX III Auto Focus lens adapter ,Canon EF EFS Lens to Sony E mount a7R II/a7S/a7R/a7II/ NEX-7/6 a6300 ,support Full-frame PDAF The Lens Mount Adapter EF-NEX III is designed to allow Sony E-mount series lenes to be used with E-mount lens compatible interchangeable-lens digital cameras lenses. Built-in metal electronic contact, precise focus It can realize AF, adjustable aperture from camera body to lens's aperture More durable metal material Signal transmission with gold PIN needle, greatly enhance its conductivity