Filmlexikon.
Support
Rosco 3027
Lighting · Terms

Rosco 3027

Murnau AI illustration
rosco 3028 rosco 3026 rosco 3029

Rosco Cinegel 3027 is a heat-resistant diffusion gel ('Tough 1/2 White Diffusion') that softens artificial light with minimal color shift.

Overview

Rosco 3027 (product code also R3027) is a diffusion filter from the Cinegel range by manufacturer Rosco. Its official designation is Tough 1/2 White Diffusion, often abbreviated in the industry as 1/2 216. It is a light-shaping filter material (gel/film) for film lighting – not equipment or grip gear, and not a color correction filter. The film is stretched or clipped in front of a light fixture to transform hard light into softer, diffused light.

The 3027 belongs to the family of "Tough White Diffusion" films. Its characteristics are equivalent to the full Tough White Diffusion (Rosco 3026 / 216), but it is less dense. This makes it a medium-strength diffuser: it scatters light noticeably but absorbs less brightness than the full version, falling between the full 216 and weaker diffusions like 1/4 White Diffusion.

Properties

  • Function: Diffusion – creates an even, soft light field and softens hard shadows and edges.
  • Density: half strength ("1/2") of full Tough White Diffusion (216); medium scattering effect.
  • Color Behavior: as a white diffusion without significant color shift – it primarily changes the scattering, not the color temperature.
  • Material: robust, heat-resistant base made of deep-dyed polyester, designed for use close to hot light sources.

Note: Rosco publishes transmission values ("Filter Facts") for each filter. Specific percentage or stop values should be taken directly from the current Rosco data sheet/swatch book if in doubt.

Available Forms

Like most Cinegel films, the 3027 is available in several formats:

FormatDimensions
Sheet20" x 24"
Roll48" x 25'
Quicksleeve / RoscosleeveSleeves for fluorescent tubes (e.g., T5, T8, T12)

On-Set Use

The 3027 is a standard diffusion for softening light fixtures. Typical applications:

  • Stretched in front of tungsten or HMI sources to create a larger, softer light area – for example, for key lights and portraits.
  • Reducing hard cast shadows and specular highlights without darkening the light as much as the full 216.
  • As a finer gradation in a diffusion set, combining 1/4, 1/2, and full Tough White Diffusion to control the degree of diffusion.
  • In the sleeve variant for diffusing or unifying fluorescent tubes.

Cinegel has been Rosco's professional filter line since 1970; Rosco received an Academy Award (Oscar) in 1974 for the development of Cinegel products.

From the crafts

Perspectives

Cinematographer

Aus DoP-Perspektive ist dieses Element essentiell für die visuelle Gestaltung. Es ermöglicht mir die gewünschte Farbstimmung und das ästhetische Bild konsistent umzusetzen.

Producer

Diese professionelle Lösung erhöht die Produktionseffizienz und reduziert Post-Production-Anforderungen. Sie ermöglicht flexible, schnelle Anpassungen während des Drehs.

Gaffer

Als Gaffer ist dies ein unverzichtbares Werkzeug meines täglichen Handwerkszeugs. Es ermöglicht mir professionelle Lichtkontrolle und schnelle Anpassungen auf Set, was Zeit spart und Qualität sichert.

More in the lexikon

Related terms

Test your knowledge

Quiz

1. Zu welchem Department gehört „Rosco 3027 (Tough 1/2 White Diffusion)"?

2. Wie viele verschiedene Fachperspektiven bietet dieser Eintrag?

Report an error
From the Filmfarm ecosystem

Understand visual language, budget productions, connect crew.

The Lexikon is part of the Filmfarm ecosystem — alongside budgeting (FilmBalance), an industry magazine (FilmCircus) and crew networking (FilmCall, CrewMesh). One shared vocabulary for the whole production.

FilmFarm FilmRadarComing soonFilmPulseComing soonFilmNumbersComing soonFilmCapitalComing soonFilmLabComing soonFilmBalanceComing soonFilmCircusComing soon