The Signature Edition 2015 TOUGH E-Mount from Fotodiox Pro - Distinctive Brass Replacement Lens Mount for Sony NEX & E-mount Camera Bodies (APS-C & Full Frame such as NEX-5, NEX-7 & ?7) Distinctive & Stylish Brass Replacement Lens Mount Solid, All Metal Construction APS-C and Full Frame such as NEX-5, NEX-7, a7 & a6000 Minimizes the Lens Movement E-Mount Cameras Are Prone To 24-Month Manufacturer Warranty