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Pale blue rectangular gel roll, 48 inches by 25 feet

Lee Filters

Lee Filters 1/4 CTB 48" x 25' Roll Gel Filter studio

SKU CH-FYT8-WM9VB

Converts tungsten 3500 K light to 5500 K daylight with a 48-inch by 25-foot roll of heat-resistant gel

  • Converts 3500 K tungsten to 5500 K daylight
  • Large 48" x 25' roll covers multiple setups
  • High light transmission keeps exposure consistent
  • Heat-resistant material withstands studio lamp temperatures
  • Durable construction resists tearing during frequent use

Precise Daylight Conversion

This 1/4 CTB gel filter shifts tungsten sources from 3500 Kelvin to 5500 Kelvin, delivering accurate daylight balance for photography and video. The 48-inch by 25-foot roll supplies enough material for large studio rigs or repeated on-location work. Professional image makers who need consistent colour temperature across a production will find it dependable.

Replaces Ad-Hoc Colour Fixes

It removes the guesswork of stacking lesser gels or relying on post-production to correct mixed lighting. The jump is worth it when a shoot moves between tungsten and daylight environments and colour fidelity must hold from the first frame to the last. It is not for buyers who only need subtle warming or cooling effects outside the stated conversion range.

Sustained High-Temperature Use

Optimised heat resistance prevents melting or warping under continuous output from hot studio fixtures. High light transmission keeps exposure consistent during long takes without unexpected density shifts. Durable construction resists tearing when the gel is cut, taped and repositioned across multiple setups.

Highlights

  • Converts 3500 K tungsten to 5500 K daylight
  • Large 48" x 25' roll covers multiple setups
  • High light transmission keeps exposure consistent
  • Heat-resistant material withstands studio lamp temperatures
  • Durable construction resists tearing during frequent use

Specifications

No published specifications for this item yet.

Questions about this item

What width and length does the 48" x 25' roll provide for cutting gels to fit my frames?

The roll measures 48 inches wide by 25 feet long, giving you plenty of material to cut custom sizes for various lighting fixtures and frames.

How do I apply the 1/4 CTB gel to a studio light without damaging the material?

Cut the gel to size, then secure it to the light's barn doors or a frame using heat-resistant clips or tape; avoid placing the gel directly against the hot lamp surface.

How often will I need to replace the gel if used regularly under hot studio lights?

The filter is engineered for high heat resistance, but prolonged exposure to temperatures from 3500 K tungsten sources will eventually cause fading or brittleness, requiring replacement when colour accuracy shifts.

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