The Westcott Apollo is a softbox based on an umbrella frame. It needs no speed ring to attach it to a strobe head. Simply open it, and slide the shaft into the umbrella receptor on the strobe head.
The 28" Apollo can be used with flash, fluorescent sources or hot lights up to 500 watts.
Provides 104° of light spread.
Size: 28 x 28" (71 x 71 cm)