This is a Speedotron 22" Grid Reflector , a.k.a. "Beauty Dish". It fits Black Line and the Brown Line M11 Flash Heads. It provides a strong, yet soft light with no center hot spot. An optional grid is available to limit the spread of light, for more dramatic effects.
This honeycomb grid provides a beam spread of 35° when mounted to a Speedotron 22" beauty dish reflector.
Grids are essential accessories for any lighting system. These devices alter the shape and intensity of the light output from your flash heads. Consider them as a painter would a brush, or a sculptor would a knife, or chisel.
Use of a grid will result in a small circle of light, when it is attached to the front of your light source. The size of the circle of light will be determined by the density of the honeycomb, its thickness, and the distance of the subject.