Cameta Cobra Macro Ring Light Flash - For Canon, Nikon, Olympus & Pentax Digital & Film SLR Cameras Provides shadow-free light at close working distances &mdash; ideal for jewelry, flowers, insects, dental, medical, coins For virtually any Digital or Film SLR Camera &mdash; such as Canon Rebel & EOS-Series Choice of manual or automatic exposure operation Comes complete with coiled PC cord, Hotshoe to PC adapter and adapter rings (52mm, 55mm, 58mm) Powered by two AA-size Alkaline, NiCad or NiMH rechargeable batteries (available separately)