Opteka BD-10 Studio 23-Inch DSLR Digital Camera Dish Dome Flash Portrait Shadow Reflector Diffuser Diverter Studio Light for Canon Speedlite 90EX 200E 220EX 270EX 380EX 420EX 430EX 480EG 540EZ 550EX 580EX 600EX-RT 90 200 220 270 380 420 430 480 540 550 580 600 II Acts as a diffuser, reflector & diverter 23.62" (60cm) dish Designed for portraits Diverts away light which in turn reduces hotspots and harsh shadows Universal mounting system fits most external flashes