The Ray Flash is a unique adapter for your Canon 580EX II flash unit designed to replicate the lighting effect produced by traditional, expensive, and heavy powered studio ring flash units.

The Ray Flash is portable and lightweight, and has been designed to take advantage of a camera's TTL metering capabilities. Because the Ray Flash relies on the hot-shoe flash to generate its light, it contains no electronics, no flash tubes and requires no cumbersome cables. The light distribution is accomplished through a sophisticated system of internal prisms, reflectors and light-shapers designed to distribute and project the light evenly around the lens.

The Ray Flash creates a unique ring flash lighting effect: a three-dimensional shadow-wrapped look around the subject. Because ring flash light originates from a circle around the lens, it produces a virtually shadowless look on the front of your subject, while producing a soft even shadow around the edges. The versatile Ray Flash is ideally suited for fashion, wedding, portrait, journalist and macro photography as either a main or fill-in light.

Ray Flash Measurements/Specifications

Model Number	Ring Outer Diameter (in.)	Ring Inner Diameter (in.)	Ring Center to Tube Center (in.)	Weight (oz.)
RAC170-2	6.89	4.06	6.69	16.86

*Note - This Ray Flash is for use with the Canon 580EX II with 5D, 40D, 30D, 20D, and 10D.

• All TTL functions operate normally when using the Ray Flash (manual exposure control requires the use of a light meter or test shots)
• Weighing about 16oz. the Ray Flash is easily supported by the SB800
• 4 1/8" internal diameter of the Ray Flash is large enough to accept almost all professional lenses
• Does not change the flash's color temperature
• Results in only one stop of light loss from your flash's standard output