Lee's Light Opal Frost gives a weak diffusion similar to Opal Frost, but less diffuse. Manufactured on a 36 micron polyester base.

A range of solutions for softening and spreading a light beam and reducing the contrast ratio between highlight areas. The range includes polyester diffusion filters, frosts, flexi-frosts, grid cloths and spun materials all in different densities for a wide range of lighting effects.