The Gary Fong Universal Lightsphere diffuser is an opaque, hard plastic cup that slips onto the end of your flash to soften either direct or bounced light. The included inverted dome cap allows you to softly diffuse direct light. Remove the cap for greater power when bouncing light. This dome is large enough to provide softening coverage for flash fires during vertical shooting and reduces the need for a flash-flip bracket. This diffuser is very popular among wedding and event shooters who don't have time for off-camera lighting setups but also need much softer light than what a Speedlight/Speedlite unit alone can provide.