Gobo

Also known as go-between, goes before optics, pattern, template.

A pattern, flag, or cutter placed in a light path to shape, block, or texture illumination.

In practice

In theatrical lighting, a gobo is commonly a metal or glass pattern placed at a fixture’s focal plane for projection. On film sets, “gobo” may also mean an opaque flag placed between light and subject, so crews should name the intended tool.

Gobo choices

Pattern: Use a hard pattern for defined texture and a softer material for broader breakup.
Placement: Place the gobo in the fixture’s intended accessory plane and respect heat limits.
Control: Combine with shutters, focus, distance, and diffusion to tune the edge.

Name origin

Trade usage varies by region and source. Treat informal explanations as probable rather than definitive.

Confidence: probable.

Explore related entries

Sources

Lighting Handbook · ARRI
Cello Cucoloris · Filmmakers Academy

Educational reference only. Requirements vary by jurisdiction, employer, venue, and production context.