Teleconverters & Lens Mount Adapters Technology

The Nikon G Lens to Sony NEX Camera Speed Booster from Metabones allows a full frame Nikon G lens to be mounted to an NEX APS-C format camera and in doing so, increases the angle of view and increases the maximum aperture one f/stop. Compatible with: Nikkor 2.1cm f4 20/2.8 AI-S • Industry's best aperture ring covers a 8-stop range with half-stop markings, clearly indicating actual number of f-stops. No more guesswork! (Patent pending). • Compatible with both Nikkor G lens & F lens (include non-AI & AI lens mounts). • Increase maximum aperture by 1 stop. • Increase MTF. • Makes lens 0.71x wider. • Optics designed by Caldwell Photographic in the USA (patent …