The ProFusion flash diffuser is a light modifier for on-camera and off-camera use. The ProFusion is the most versatile flash diffuser on the market, affording photographers unparalled flexibility in the direction, color, and diffusion of their light. The ProFusion flash diffuser is a universal fit speedlight diffuser that fits the vast majority of flashes/speedlights including the Canon 430 EX, 430 EX II, 540 EZ, 550 EX, 580 EX, 580 EX II and the Nikon SB-600 AF, SB-800 AF, and the SB-900 AF.