Arrow Type-B Gobo Rosco 77963.
Gobos are like stencils for profile (ERS-style) lighting fixtures. Allowing light to shine through certain areas and project a pattern. The color of the projected image can be changed by adding a sheet of lighting gel. By adding a donut (color frame with smaller hole) you can increase the contrast and clarity of the projected image. Full-size Source Four fixtures also offer an EDLT lens tube option designed for high-quality gobo projection.
Metal gobos are laser cut from 8 mil stainless steel with a high level of nickel and chromium. This type of steel produces a very durable gobo with fine detail image and a long life.
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