NEW City Theatrical S4 10, SL 10 Donut (Pkg of 10)

Package of 10

The NEW City Theatrical S4 10, SL 10 Donut (Pkg of 10) is a set of aperture-reducing donuts designed for the color frame slot of an ellipsoidal reflector spotlight to help sharpen gobo projections. Similar to the way the human eye sharpens focus when it squints, a donut reduces the aperture and sharpens the output of the fixture. There is some reduction in brightness to achieve this increase in sharpness but this is often a tradeoff that designers are willing to make.

Practical Use

Use these donuts when you need cleaner template edges and more precise projection focus, especially in situations where a slightly lower output is acceptable in exchange for a crisper image. They are commonly used to help bring templates into perfect sharpness during focus and refinement.

Construction Details

Each donut is fabricated from light gauge steel and finished in a durable black powdercoat to stand up to regular handling in a lighting workflow.