The westcott apollo orb is the first octagonal softbox that doesnt require an adapter ring simply open like an umbrella place the light inside and attach the included diffusion panel designed specifically with a deeper profile light is evenly projected for maximum output while simulating a round catch light in the eyes the diffusion panel can be recessed for even more directional control and to prevent lens flare the octagonal design means you will get a pleasing round catchlight in the s