High-Power 500mm/1000mm f/8 Manual Telephoto Lens + Deluxe SLR BackPack for Nikon D90, D80, D70, D60, D40, D40X, D3X, D3S, D3000, D3100, D3200, D3300, D5000, D5100, D5200, D5300, D5500, D7000, D7100, D7200, D300, D300s, D600, D610, D700, D750, D800, D800e, D810, D810a DSLR High-power 500mm telephoto focal length Includes T-mount adapter for digital and 35mm NIKON 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