Simply swing one or more leaves into the beam path to light areas you want and to keep light from areas you don't want illuminated. The 8-leaf design gives even greater control than 4-leaf versions and provides clean cuts of light.
The 4-way barndoor design allows for one to four of the leaves to be swung into the light's beam to illuminate areas that you want while keeping light from areas where you don't want it. The 30-degree grid narrows the beam spread.
The sturdily built modifier has 16 wear-resistant Hadfield steel rods that form a circular field of light that yields wide coverage and pleasing, natural-looking catchlights in the eyes of your subject, while maximizing output with its reflective silver interior.