Opteka BD-10 Studio 23-Inch DSLR Digital Camera Dish Dome Flash Portrait Shadow Reflector Diffuser Diverter Studio Light for Vivitar DF-583 DF-483 385HV DF-383 DF-293 DF-286 285HV DF-283 DF-183 DF583 DF483 DF383 DF293 DF286 DF283 DF183 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