This is a classic tool used to give some character to a bland background. Its effects are reminiscent of light filtering through lace curtains or leaves on a tree. The cookaloris' basic form hasn't changed much over the years. Traditionally just a piece of thin plywood with random shapes cut out and clamped to another stand to allow position adjustments.

In use, generally the closer the cookoloris is to the wall or background, and away from the light, the sharper the shadow will be. The cookaloris that fits in the barndoor frame of the Omni-light gives it's most dramatic effect when the light is closer to the wall / background.