The 410 Opal Frost Filter from LEE Filters can be applied over a spotlight to soften the edges of the spotlight's beam without altering its shape. This filter also reduces contrast between highlight areas in a scene.

Under 6774K Source C light, the 410 Opal Frost Filter provides a 0.5-stop value, transmitting light at 71%. It is constructed from a 23-micron polyester base that is heat-resistant to 356°F and is delivered as a 48" x 25' roll on a 1" core.