Introduction: M42 to all For Minolta AF & For SONY Alpha mount adapter ring (NO Chip) Make M42 mount lenses (For Zeiss, For Pentax, For Praktica,For Mamiya,For Zenit) can be used on For Minolta AF & For SONY Alpha cameras There is no ROM connection on the ring so diaphragm control of the lens is set manually It is possible to use Macro rings and other accessories Brand new, never used Made of aluminum (not plastic) NOTICE: Although the lens will fit physically, automatic diaphragm, auto-focusing, or any other functions will not operate correctly while using this adapter. In this case "stop-down mode" will need to be used when metering since the lens does not have the ability to have its aperture controlled by the camera body. You can shoot with manual mode or aperture priority mode . Package Include: 1pcs x M42-AF Lens Mount Adapter (NO Chip) Suitable For For Minolta AF & For SONY Alpha DSLR (as long as the body takes For Minolta AF & For SONY Alpha lens _x000D_window.adminAccountId=254075701;_x000D_