JJC RR-SM reverse ring is threaded on one side to fit the filter thread of your lens. The other side has a mount type for your camera Sony Alpha / Minolta AF mount. Screw the adapter into your lens, turn the lens around and bayonet it into the camera body. By connecting a lens reversely onto an existing lens, the photographer can achieve extremely close macro image
The JJC RR-SM 52mm Reversing Ring Black allows you to attach the lens in a reverse position to your camera for converting in to a macro lens. It increases the capability of your camera for shooting objects in macro.