Polyethylene diffusion scrim fabric offering 65–70% light transmission; available in 0.5–1.5 stop reductions. Budget-friendly alternative to silk diffusion.
Technical Details
White Griffolyn consists of a 0.15-0.20mm thick polyethylene film with an interwoven polyester scrim fabric, achieving a tensile strength of up to 200 lbs/inch. Light transmission is 65-70%, with the color temperature shifting by a maximum of 200K towards warm white. Standard widths range from 1.22m to 6.10m with roll lengths up to 30m. The film is waterproof, UV-resistant, and temperature-stable up to 70°C. Variants include different diffusion grades: Light (0.5 stops), Medium (1 stop), and Heavy (1.5 stops).
History & Development
Griffolyn was developed in 1973 by Reef Industries as a robust tarpaulin and quickly found its way into film production as a cost-effective alternative to expensive tissue paper diffusers. By the mid-1980s, the material had established itself as a standard in Hollywood productions, especially after its use in "Blade Runner" (1982) for large-scale softbox constructions. Further development led to optimized diffusion properties and today's available flame-retardant variants for studio use.
Practical Use in Film
Roger Deakins extensively used white Griffolyn on "1917" (2019) for natural-looking daylight diffusion in trench scenes. Typical applications include 12x12-foot overhead frames for exterior shots, window diffusion for interiors, and softbox coverings for HMI lamps. The workflow requires secure fastening with clamps or tape, as wind can heavily stress the material. Advantages lie in uniform light distribution and favorable pricing, disadvantages in susceptibility to tears and the characteristic plastic look when directly visible.
Comparison & Alternatives
Unlike Opal Frost, white Griffolyn produces less contrast and retains more light direction. Lee 216 or Rosco 3026 offer more precise diffusion grades but cost five times as much. Modern LED panels with built-in diffusion are increasingly replacing Griffolyn setups in smaller productions. For budgets under €50,000, Griffolyn remains the first choice, while high-end productions opt for Ultrabounce or Digital Silk.