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Rectangular blue gel filter sheet measuring 24 by 21 inches

Lee Filters

Lee Filters Full CT Blue Gel Filter Sheet 24x21

SKU CH-65N6-EQAFN

Full CT Blue gel sheet corrects colour temperature to balance daylight, sized 24x21 inches for versatile studio or location use

  • Precise color-temperature correction with Full CT Blue gel
  • Accurate color balance maintained for natural-looking images
  • Durable material resists tearing and fading over time
  • High heat resistance prevents warping under studio lights
  • Large 24x21 inch sheet cuts to fit various fixtures

Professional Color-Correction Gel Sheet

The Lee Filters Full CT Blue gel sheet is a 24x21-inch filter designed to lower the color temperature of light sources. It converts warmer tungsten output to match cooler daylight balance for accurate color rendering. Photographers and videographers use it to eliminate unwanted amber casts in mixed-lighting environments.

Durable Material With High Heat Tolerance

The gel resists tearing and fading during regular studio or location handling. Its heat-resistant construction prevents warping or melting under continuous output from hot lights. High light transmission minimizes intensity loss while maintaining consistent color correction across the sheet surface.

Suits Photographers Balancing Mixed Light Sources

This sheet serves professionals and enthusiasts who need to match tungsten fixtures to daylight or correct color casts in-camera. It can be cut to fit barn doors, frames or small modifiers. Buyers needing neutral density reduction, color effects gels or rigid filter formats should look at other product types.

Highlights

  • Precise color-temperature correction with Full CT Blue gel
  • Accurate color balance maintained for natural-looking images
  • Durable material resists tearing and fading over time
  • High heat resistance prevents warping under studio lights
  • Large 24x21 inch sheet cuts to fit various fixtures

Specifications

No published specifications for this item yet.

Questions about this item

Will the 24x21 inch gel sheet need replacement after repeated exposure to hot studio lights?

The gel is built with exceptional heat resistance to prevent warping or melting during extended shoots, so it should not degrade quickly under normal studio temperatures.

What is the first limitation I will hit when using this Full CT Blue gel all day on a high-output light?

The filter modifies colour temperature to balance daylight, so the practical limit is the colour shift it introduces rather than a power or thermal ceiling.

Does the 24x21 inch sheet produce any noise, heat or extra power draw when left on a light for a full day?

As a passive gel filter it adds no noise, generates no heat of its own and draws no power; it simply transmits light while correcting colour temperature.

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