The Photogenic Optical Snoot is designed to function as an accent light, hair light or soft focus background pattern projector. The slide-in holder accepts 86 mm B size steel patterns. Over 500 pattern designs are available from Rosco, GAM and Lee Filters. You can change background colors by adding heat resistant gels. The Optical Snoot comes with the 123 mm lens. Changing image size is as easy as changing lenses. In addition to accent applications and pattern projection, the Optical Snoot can be used to produce a spotlight effect. It is a high contrast, directional light source that can be used to simulate the glamour lighting techniques of the 1930's and 1940's. The Optical Snoot can be used without a lens for less contrast. The modeling lamp should be reduced to 100 watts to prevent overheating. The snoot fits all Photogenic PowerLights, Solair and StudioMax II and III lights.