K&F Concept Lens Mount Adapter for Canon FD Mount to Samsung NX Lens Camera Body FD-NX Allows to use Canon FD mount Camera Lens to Samsung NX Lens Camera. High quality provides great protection and shock absorption for your lenses, water-resistant. Please note: this adapter ring is not suitable for Samsung NX1000, NX2000, NX3000 series. Please note: It is not same between Canon FD mount and EF mount, this adapter ring is only for Canon FD mount lens, please contact us if you want to purchase for Canon EF mount lens. Please note: Infinity focus positionthe position of the infinity mark of the telephoto lens or super telephoto lens is shifted slightly to the positive side to enable focus adjustment even when focus shift is caused due to temperature changes.The shift range is denoted by an L-shaped line, Be sure to check the focus through the viewfinder even when you shoot at infinity.