BNeewer� 58mm Macro Reverse Ring Camera Mount Adapter for Canon EOS Camera with 58mm Filter Thread Lens (Metal) ReviewbP PP Neewer� 58mm Macro Reverse Ring Camera Mount Adapter for Canon EOS Camera with 58mm Filter Thread Lens (Metal) PMade of aluminum with High Quality.PCompletely manual control, manual focus and manual exposurePIt is extremely effective for macro photography.PThere is no ROM connection on the ring so diaphragm control of the lens is set manually.PEquipped with lock & stop pin.