Fotodiox 52mm -52mm, 52-52mm Macro Close-up Reverse Ring, Anodized Black Metal Ring, for Nikon, Canon, Sony, Olympus, Pentax, Panasonic, Samsung Camera
This reversing ring allows you to mount a 52mm front threaded lens in reverse on a lens mount camera. Recommended for use with standard (52mm) lenses. Reversing the lens greatly increases the macro reproduction capabilities.