The 4-Leaf Barndoor and Grid Holder for Profoto Zoom Reflector mounts directly onto the Profoto Zoom Reflector. It features springs for mounting filters and/or honeycomb grids. It blocks undesired light from the subject or the camera lens and shapes the light output of the flash head when used without the grids.
Barndoors, snoots, grids, and filters are essential accessories for any lighting system. These devices alter the shape, intensity, or color 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 barndoor set will result in a shaft of light, when it is attached to the front of the reflector of your light source. The size of the shaft of light will be determined by the opening of the leaves, and the distance of the light from the subject. Rotating the barndoor set will determine the angle of the shaft of light. A 4-leaf barndoor provides more light control than a 2-leaf barndoor set.