YONGNUO MR-58 Macro LED Macro Ring Flash light for Nikon DSLR cameras Reviewhttp://tinyurl.com/krry7f5 YONGNUO MR-58 Macro LED Macro Ring Flash light for Nikon DSLR cameras 58 pieces of high brightness LED lamps. (Both flash and light mode)52mm / 58mm / 62mm / 67mm, four size of adapter rings. (With these adapter rings, users can mount the ring flash on macro lens)Light Mode: The flash head will continuous output by the current mode of left / right setting, it suitable for taking photo or video recording.Flash Mode: The flash head will fire by the current left / right setting when testing or using, it suitable for taking photo at close range.MR-58 LED macro ring flash has 58 pcs high brightness LED as lighting source. A high-efficiency circuit design keeps the stability of the lighting outputs.