Made of black anodized aluminium the Kiwifotos M39 to NX mount adapter allows the use of Leica Thread Mount M39 (LTM) lens to fit on the Samsung NX camera body (NX10, NX5, NX100, NX11 etc.). The lens fits physically but automatic diaphragm, auto focusing, or any other functions can not operate correctly. Use the lens in auto exposure(A) or manual exposure(M).