M42 Lens E Mount Macro Focusing Helicoid Tube, M42 Lens to Sony E-Mount Helicoid Adapter, allows M42 Screw Mount Lens (eg Pentax Super Takumar, Helios etc) to fit on E-mount camera body. Made with light-weight alloy This Helicoid tube offers a total of 32mm movement distance for Lens focusing. It can works as a standard M42 lens to E-Mount Adapter and allows M42 Lens Focus to Infinity. There is no electrical contacts in the adapter ring Automatic diaphragm auto-focusing or any other functions will not operated with using this adapter Compatible with Sony a7 a7r a7S II III IV a9 a9II a7c Alpha 1 NEX5T NEX-6 NEX-7 NEX-F3 a3000 a3500 a5000 a5100 a6000 a6300 a6400 a6500 a6600 ZV-E10 and new models.