Viltrox NF-E1 mount adapter is designed to allow Nikon F-mount series lens to be used on Sony camera with E-mount lens. By adapter mounting it can achieve functions of EXIF signal transmission, AF (autofocus) and adjustable aperture,etc. Gold-plated electronic contact, Auto-focus function, It can realize AF,adjustable aperture from camera body to lens’s aperture More durable metal material Compatible Nikon F series lens Diameter