The K&F Concept FD-EOS EF high-precision adapter with correction glass allows the mounting of Canon FD/FL lenses on Canon EOS EF camera bodies. This mechanical adapter enables full exposure automation with manual aperture control and manual focusing, as autofocus functionality is not supported. The aperture mechanism works exclusively with lenses that have an independent aperture ring. Infinite focusing is ensured by the integrated correction glass element. Made of brass and aluminum, this adapter provides stable, precise, and durable performance with reliable mounting security. It is compatible with a wide range of Canon EOS EF camera models including 300D, 350D, 400D, 450D, 500D, 550D/T2i, 600D/T3i, 650D/T4i, 700D/T5i, 750D/T6i, 760D/T6s, 800D/T7i, 100D, 200D, 1000D, 1100D/T3, 1200D/T5, 1300D/T6, 77D, D30, D60, 10D, 20D, 20Da, 30D, 40D, 50D, 60D, 60Da, 70D, 77D, 80D, 7D, 7D Mark II, 5D, 5D Mark II, 5D Mark III, 5D Mark IV, 5Ds, 5Ds R, 6D, 6D Mark II, 1D, 1Ds, 1D X, and 1D C series. This adapter is not compatible with Canon EOS-M or EOS-R/RF camera bodies. The black surface gives it a professional appearance that aligns with the aesthetics of standard camera equipment.