49mm Macro Reverse Adapter Ring for CANON EOS EF Mount

49mm Macro Reverse Adapter Ring CANON EOS EF Mount The Reverse Rings are threaded on one side to fit the filter thread of your lens. The other side has a mount like your camera lens. Screw the adapter into your lens' filter thread, turn the lens around and bayonet it into the camera body. This greatly increases the macro reproduction range capabilities. 49MM thread with CANON EOS body. 49mm Male thread Brand new,never used Made of metal Color:black package includes: Macro reverse adapter ring×1 Suitable for: Canon EOS EF camera body