Compatible with Nikon D-SLR cameras: D40, D40X, D50, D60, D70, D80, D90, D200, D300, D300S, D3000, D3100, D5000, D7000 Compatible with Nikon D-SLR cameras: D40, D40X, D50, D60, D70, D80, D90, D200, D300, D300S, D3000, D3100, D5000, D7000 Compatible with Nikon D-SLR cameras: D40, D40X, D50, D60, D70, D80, D90, D200, D300, D300S, D3000, D3100, D5000, D7000 Compatible with Olympus D-SLR cameras (the connection is a little bit loose): E-300, E-410, E-420, E-510, E-520, E-620, E-1, E-3, E-30, E-5 T-mount connection; Nikon/Olympus CMOS/CCD sensor with 2x lens equivalent to 12x~15x eyepiece (vary by CMOS/CCD sizes); Material: metal 23.2mm-30.5mm metal eyetube adapter with rubber ring for stereo microscopes; Tube depth: 25.0mm 1-year warranty against manufacturing defects Packing List: 2X lens for microscopes, 42mm male thread; T-mount for Nikon DSLR (also fits Olympus) included, 42mm female thread; 1 piece of 23.2--30.5mm metal eyetube adapter for stereo microscopes