Love vintage lenses? This K&F Concept adapter lets you mount your classic M42 screw-mount lenses onto modern Nikon F-mount DSLR or film cameras. The coolest part? It includes a corrective optical glass element inside, which allows you to maintain infinity focus – something many simple adapters can't do. It’s brand new in its box, model KF06.119, UPC 602430603266. This means you can use those beautiful, character-filled old Takumars, Helios, or other M42 gems on your Nikon body and still focus on distant subjects. It’s a must-have for photographers who love experimenting with different looks. The build quality from K&F is solid. Just screw your M42 lens into the adapter, then click the adapter onto your Nikon camera. It’s that easy. Unlock a whole new world of creative possibilities without buying expensive new glass. A fantastic tool for hobbyists and pros alike.