From Video Gear…
An Introduction To Lighting Diffusion from Video Gear on Vimeo.
In this video Dominique explains the how diffusion affects lighting.
The video demonstrates a number of common types of diffusion material, such as Lee Opal, 250, 216, half soft frost, light grid cloth, and full grid cloth.
For further info see video-gear.com or our blog at video-gear.com/blog.