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. It features gold-plated electronic contact, auto-focus function, and can realize AF, adjustable aperture from camera body to lens's aperture. The adapter is made of durable metal material and is compatible with Nikon F series lens.