Umbrella frame Light Modifiers allow for quick set-up, require no adapter ring, for studio or on-location photography. Pairing this with the 5015 Shoe Mount Umbrella Bracket offers an ideal speedlite set up. Insert the speedlite directly inside the Apollo rotating the head of the speedlite towards the back of the Apollo and achieve an indirect (evenly distributed) beautiful light source. The square shape allows you to scrim or control the light more readily, and allows for 104 degrees of light spread.