2" to T2 M42*0.75 Telescope Mount Adapter W/ T Ring for Canon/Nikon/Sony DSLR
Adapter Male Thread: M42 0.75. 1x T2 Ring for DSLR. - Compatible Lens: for Canon T2/T Mount Lens. - The inside of the adapter is fully threaded to minimize reflections. also had M48 threaded for filter.