Digitalfilm Service - MTF B4 2/3" to Sony E-Mount Lens Adapter available at DFS. This kit enables the use of ENG style B4 2/3" lenses on cameras with either Sony E-mount or
Amazon.com : Fotodiox Pro Lens Mount Adapter, B4 (2/3") Lens to Sony NEX (E- Mount) Camera Body, for NEX-3, NEX-3N, NEX-5, NEX-5R, NEX-6 NEX-7 : Electronics