2inch Telescope Camera Adapter for Nikon SLR Camera -Large Clear Aperture - with 2&rdquo; Filter Threads Specially designed for 2 prime focus, the adapter features large 40mm through hole and takes you directly from the cameras bayonet mount to a 2" Barrel with as few wasted photos. Fits all Nikon DSLR cameras: D1, D2, D3, D3S, D3X, D35, D4, D40, D40X, D50, D60, D70, D80, D90, D100, D200, D300, D300S, D600, D700, D750, D800, D800E, D810, D3000, D3100, D3200, D5000, D5100, D5200, D7000, etc. Standard 2" barrel size to insert to 2" telescope focuser or other accessories. Threaded for Standard 2" Eyepiece Filters (48mm) (thread inside tube). Baffles is machine-threaded and anti-reflection painting process to reduce internal reflections. All metal construction. Anodizing Aluminium process.