Fotodiox Lens Mount Adapter - M42 Type 2 (42mm x1 Screw Mount) to Sony Alpha E-Mount Mirrorless Camera Body Mounts M42 Screw Mount SLR Lenses to Sony E-mount mirrorless cameras; For Type 2 Lens High-tolerance precision craftsmanship; infinity focus or beyond guaranteed All-metal design; hardened anodized aluminum construction Premium grade Fotodiox adapter 24-Month Fotodiox Warranty