City Theatrical 2208 125mm Donut For Gobo Sharpening In Ellipsoidals

A donut is a simple way to tighten up a gobo projection without changing fixtures or swapping lenses. Dropped into the color frame slot of an ellipsoidal reflector spotlight, it narrows the aperture the same way squinting helps the eye focus. Lighting designers and production electricians get a crisper pattern on the stage, set pieces, or scenic surfaces.

The tradeoff is a reduction in brightness, and many designers accept that compromise when pattern definition matters more than raw output. It is an inexpensive accessory to keep in the road case or shop stock for theatrical, concert, and event rigs where templates are a regular part of the plot.

This 125mm size is one option within a City Theatrical donut range that spans many fixture sizes and aperture choices. Matching the donut to your fixture's color frame slot and the amount of sharpening you want is the key step before ordering, so check the fixture's slot dimensions against the size you need.