K&F Concept EOS-58mm Macro Reverse Adapter Ring Camera Mount Adapter + Rear Lens Mount Protection Ring for Canon EOS EF EF-S Mount NOTE: This kit is compatible with all 58mm lenses. Please verify your camera's lens thread size before ordering. Your camera's lens thread size will be marked somewhere on the lens barrel or printed underneath your lens cap. Allows the camera lens to be fitted in its reverse position onto the camera body. Makes lens become a macro lens on camera body. When attached automatic diaphragm, auto-focusing, or any other functions will not operate correctly. This lens mount adapter allows any 58mm lens become a Marco lens on CANON EOS camera body.