XCSOURCE Lens Adapter T-Ring for Sony NEX Camera + 1.25in / 31.7mm Telescope Mount DC690 It offers 1.25in mounting sizes on telescope side. Superior quality, top class precise design. With two adapters included. Compatible with:Sony NEX E-mount camera (NEX-7 NEX-6 NEX-5 NEX-5C NEX-5N NEX-5R NEX-5T NEX-3 NEX-C3 NEX-F3 NEX-3N).