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Square 20x24 inch lighting filter sheet with delicate greenish-blue hue

Rosco

Rosco Roscolux Cool Blue 20x24" Lighting Filter

SKU CH-W7CD-PJFRJ

A 20x24 inch lighting filter with a delicate greenish-blue hue, 67% light transmission and tri-extrusion construction for heat resistance and extended lifespan

  • Delivers true-to-life colour rendition for professional photography
  • Withstands rigorous use resisting tears and scratches
  • Endures high studio-light temperatures without warping
  • Easy to cut and apply to various lighting setups
  • 67 % light transmission for precise illumination control

Professional Lighting Filter

The Roscolux Cool Blue is a 20x24 inch color effects filter designed for photographers and studio professionals who need precise color control in their lighting setups. Its greenish-blue hue creates icy ambience or general washes for stage and photographic work. The sheet format suits both permanent installations and temporary rigs where custom sizing is required.

Durable Tri-Extrusion Build

The filter uses a tri-extrusion process that seals the colored layer between two clear films, giving over 65 percent polycarbonate content with deep-dyed polyester for the remainder. This construction resists tears, scratches and dye migration while handling high temperatures from studio lights without warping or color shift. The material stays flat and consistent during extended shoots.

Ready-to-Cut Sheet Format

Supplied as a full 20x24 inch square, the filter transmits 67 percent of light and can be trimmed to fit barn doors, frames or gel holders without specialized tools. The size covers most standard lighting accessories, reducing waste and setup time on complex configurations. No additional mounting hardware or software is included.

Highlights

  • Delivers true-to-life colour rendition for professional photography
  • Withstands rigorous use resisting tears and scratches
  • Endures high studio-light temperatures without warping
  • Easy to cut and apply to various lighting setups
  • 67 % light transmission for precise illumination control

Specifications

No published specifications for this item yet.

Questions about this item

What light transmission does the 20x24 inch Roscolux Cool Blue filter provide?

The filter transmits 67% of light, giving precise control over illumination while adding a greenish-blue tone for icy stage effects.

What are the physical dimensions and material thickness details for mounting this filter?

The sheet measures 20 by 24 inches and uses a tri-extrusion construction with co-extruded polycarbonate and deep-dyed polyester layers sealed between clear film.

How do I install the Roscolux Cool Blue filter without damaging the dyed layer?

Cut the sheet to size, then place it in a frame or gel holder with the colored layer facing away from the heat source so the clear outer films protect the dye.

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