High-Power 500mm/1000mm f/8 Manual Telephoto Lens + Deluxe SLR BackPack for Samsung NX Series NX, NX1, NX-5, NX5, NX-10, NX10, NX11, NX-11 NX-100, NX100, NX-200, NX200, NX-20, NX20, NX-30, NX30, NX-210 NX210, NX-200, NX200, NX-300, NX300, NX-1000, NX1000, NX-1100, NX1100, NX2000, NX-2000, NX2000B, NX3000, NX-3000, Galaxy NX DSLR High-power 500mm telephoto focal length Includes T-mount adapter for digital and 35mm Samsung DSLR cameras High index, low-dispersion multi-coated optical glass to reduce flare 2X Teleconverter doubles the power of your lens to 1000mm. Filter thread: 67mm