Adapter for Pentax M42 Lens to Sony E Mount NEX Nex-3 Nex-6 Nex-5r Camera Dc108 With this adapter, you can use M42 Lenses on Sony NEX E mount camera Disphragm control of the lens has to be seted manualy due to the adapter is without ROM connection Infinity focus is guaranteed Features: Solid metal mount lens adapter allows M42 lens is used on Sony NEX camera body Allows focus to infinity