M42-Ai Glass Adapter Focus Infinity For M42 Screw Lens to For Nikon Mount Camera Features: This M42 to for Nikon Ai adapter is made of aluminum, with built-in correctional glass to allow INFINITY FOCUS. It allows you to use M42 mount lenses and macro accessories on for NIKON SLR/DSLR cameras by manual focusing under manual exposure control. Adapter for M42 Lens to for NIKON Body. The lens distance scale can be used as well as the focusing to infinity and the adapter has correction lens inside. Completely manual control, manual focus and manual exposure With Glass Element. Infinity Focus Allowed. No electrical connection, AF-Focus is not allowed. Suitable for: Lens Compatibility: M42 mount lenses (for Zeiss, for Pentax, for Praktica, for Mamiya, for Zenit) Camera: All for Nikon F Mount Camera Such as: D7200, D7100, D7000, D5500, D5300, D5200, D5100, D5000, D3300, D3200, D3100, D3000, D90, D80, D70, D60, D600, D610, D750, D800, D810 ect. Notice: 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. Package Included: 1 x Adapter ring(With Glass)