i-TTL Iteration! Ring Light / Flashes are now more popular than ever for portrait and close-up photography. Used by dentists & practitioners to help illuminate close-up images or instill colorful and dreamy effects. Three brightness levels, one quarter, half and full. High luminosity (95%) and low static power consumption. Functions as a photography light as well as a flash. Auto Focus Assist (Depress Shutter Activates AF-Assist). 6 (Six) luminance levels for any photography application. Wireless Off Camera Capabilities. Includes Light, Instructions & Warranty papers, Lens Adapters/Rings (If Necessary)