M42 Lens to Nikon1 Camera AdapterThis adapter ring allows you to use the M42 screw lens on the Nikon1 camera body, it's saving you the expense of a costly and irreversible conversion.This adapter has no lens element so it does not effect optical performance.Made of AluminumColor: Blackfocusing,or any other functions will not operate correctly while using this adapter."Stop-down mode" will need to be used when metering since the lens doesnot have the ability to have its aperture controlled by the camera body.Made of aluminum. Compatible ForM42 Mount LensNikon1 Camera (V1 J1) Package contains:1 x M42 Lens to Nikon1 Camera AdapterNotice:Although the lens will fit physically,automatic diaphragm,auto-focusing,or any other function will not operate correctly while using this adapter. In this case "stop-down mode" will need to be used when metering since he 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. _x000D_window.adminAccountId=254075701;_x000D_