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Rectangular 20 by 24 inch diffusion sheet with smooth translucent finish

Rosco

Rosco Opal Tough Frost 20x24" Diffusion Sheet

SKU CH-RY30-10KMR

A 20x24 inch diffusion sheet that softens light from HMI, CID and CSI sources while maintaining accurate colour temperature

  • Smooth, even light diffusion minimises harsh shadows
  • Precise colour accuracy maintains true-to-life tones without shifts
  • Durable, heat-resistant construction withstands high studio light temperatures
  • Versatile 20x24" sheet suits small product shots to larger portrait sessions
  • Tri-extrusion process seals colour layer for extended lifespan under hot lights

Professional Light Diffusion

The Roscolux Opal Tough Frost is a 20x24 inch sheet designed for photographers and cinematographers who need smooth, even illumination. It softens output from HMI, CID, and CSI sources while preserving accurate color temperature for true-to-life results.

Heat-Resistant 20x24 Coverage

The sheet handles high temperatures from studio fixtures thanks to a tri-extrusion build that seals the diffusion layer between clear films. Its 20x24 inch dimensions suit tabletop product work through to larger portrait setups, though very wide key lights may require multiple sheets.

Tri-Extrusion Durability Advantage

The three-layer construction minimizes dye migration, extending usable life compared to surface-coated filters. Over 65 percent polycarbonate content makes the material lighter than 100-103 series gels while maintaining superior transmission and toughness for repeated professional use.

How it compares

Measured against everything we stock in Photo Lighting & Studio Flashes, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 90% of the 3,696 comparable items (median $57.99).

Specifications

No published specifications for this item yet.

Questions about this item

Will the 20x24" sheet cover the front of my older 100-series Rosco frames?

The sheet measures 20 by 24 inches, matching the standard frame size used for Roscolux 100 and 103 series gels, so it fits existing frames without trimming.

How can I verify the diffusion is performing correctly once installed?

Check for a smooth, even beam with softened shadow edges and no colour shift; the tri-extrusion construction keeps the dye sealed between clear layers for consistent output.

Does the package include mounting clips or a frame, or must I supply them?

Only the single 20x24" diffusion sheet is supplied; frames, clips or tape for mounting are not included and must be sourced separately.

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