Fotodiox Pro Lens Mount Adapters with Focusing Barrel, Mamiya RB67 Mount Lenses to to Sony E-Mount Mirrorless Camera Adapter - for Sony Alpha E-mount Camera Bodies (APS-C & Full Frame such as NEX-5, NEX-7, a7, a7II) Premium Grade Fotodiox "Pro" Adapter Smooth surface for effortless mount Infinity Focus Guaranteed Includes: Pro Mamiya RB67 Lens to Canon EF/EF-S Camera Adapter & Canon EF/EF-S Lens to Sony E-Mount Camera Adapter 24-Month Manufacturer Warranty