Beam cassettes comprise either one or two layers of screen printed glass to produce striking effects when projected through smoke or haze in a darkened environment.
Both original 3" and new style 50mm cassettes are available - both produce identical effects. We recommend the new 50mm type as they're a much better design and easier to use. Existing users of 3" effects may wish to continue with the 3" form factor so they can continue to use their existing rotators.
Effect Cassettes require a suitable 3" or 50mm Cassette Rotator to fit them to a projector.
See also Multi-Colour Cassettes, Mono-Colour Cassettes, Liquid Cassettes.