The Orbis Ring Flash is designed to affix onto the front of a common shoe-mount flash and is suspended around the circumference of a lens. The Orbis does not produce light independently, rather it is a light modification device that produces an effect similar to studio ring flashes usually costing ten times the price of the Orbis.
A ring flash is one of the best ways to light for a still-life, portrait, or macro shoot. Its effect is unmistakable and very distinct.