Olympus RF-11, Macro Ring Flash Unit for Digital & Film Cameras.
A ring flash unit that offers macro photography with shadowless illumination when used with the FC-1 Macro Flash Controller. Both TTL auto and manual flash available. Use the FR-1 flash adapter ring to attach the unit to the ZUIKO DIGITAL 50 mm F2.0 macro lens. Can be attached to the ZUIKO DIGITAL 14-54 mm F2.8-3.5 zoom lens via the lens-cover mounting bayonet.