Fotodiox Lens Mount Adapter - M39/L39 Screw Mount SLR Lens to Sony Alpha E-Mount Mirrorless Camera Body Mounts M39/L39 Screw Mount SLR Lenses to Sony E-mount mirrorless cameras High-tolerance precision craftsmanship; infinity focus or beyond guaranteed All-metal design; hardened anodized aluminum construction Premium grade Fotodiox adapter 24-Month Fotodiox Warranty