The Metabones Nikon G to Sony NEX mount adapter (Black Matte) is a handy accessory that enhances the utility of your Nikon G-series camera. Allowing you to attach a Nikon F-mount G lens to a Sony NEX camera, including an NEX full frame camera. Both the camera and lens portion of the adapter are made from brass, which is machined with precision, plated with chromium, and come with a satin surface finish. The lens mount fits your camera perfectly so that there are no unwanted gaps or wiggling of the lens.