K&F Concept Lens Mount Adapter, M42 Lens to Nikon 1 Mount Camera Adapter Ring for V-1 J-1 V1 J1 M42 screw mount Lens to Nikon 1 Series Camera Designed for Nikkor 1 Series Mirror less Cameras, N1 1 V1 V2 V3 S1 S2 J1 J2 J3 J4 AW1 etc Infinity focus function is allowed Manual adapter,auto diaphragm/auto-focus is not allowed All-metal design; anodized aluminum construction