TS Adapter: Connect from a Starlight Feather Touch F30, 3-Inch Focuser to M68x1 Zeiss Level Thread. It connects reducer, flattener, and adapters with M68 male threads to the 75 mm thread of the focuser

This adapter provides a direct connection between Starlight Instruments 3-inch Feather Touch focusers and the correctors or adapters with male M68 thread.Connection thread to the focuser: 75 mm thread of the 3-inch Feather Touch.Connection thread on the camera site: M68 female thread.