Rosco

Rosco 3407 SHEET Roscosun CTO Gel Sheet Converts 5500K to 2900K

4.4 (11 reviews)

Transform Daylight to TungstenThe ROSCO 3407 Roscosun CTO Gel Sheet allows you to convert the color temperature of a 5500K light source to approximately 2900K. This gel sheet is essential for filmmakers, photographers, and lighting designers looking to achieve a warm, tungsten-balanced look when ...

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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

Transform Daylight to Tungsten

The ROSCO 3407 Roscosun CTO Gel Sheet allows you to convert the color temperature of a 5500K light source to approximately 2900K. This gel sheet is essential for filmmakers, photographers, and lighting designers looking to achieve a warm, tungsten-balanced look when using daylight sources.

Specifications:

  • Product: Gel Sheet
  • Color: Roscosun CTO
  • Color Conversion: Converts 5500K to 2900K

Specifications

Product Type
CTO Gel Sheet
Brand
Rosco
Color Conversion
5500K to 2900K

Pros & Cons

👍 Pros

  • Specifically designed to convert daylight-balanced light sources (5500K) to a warmer tungsten tone (2900K).
  • The gel is provided in a sheet format, offering flexibility for custom cutting to fit various lighting fixtures.
  • Effectively shifts the color temperature of artificial lighting, providing creative control over mood and ambiance.
  • Useful for matching different light sources or achieving a specific aesthetic in photography and videography.
  • Being a Rosco product, it comes from a brand recognized for its quality in lighting filters.

👎 Cons

  • Specific details about the sheet's dimensions are not provided, which may require buyers to estimate or measure their needs.
  • As a gel sheet, it requires manual application and potentially cutting, which can be less convenient than pre-cut or mounted filters.
  • The conversion is fixed from 5500K to 2900K; it does not offer variable color temperature adjustment.
  • The material is a gel, which can be susceptible to damage from excessive heat if placed too close to high-wattage lights.
  • Only serves the purpose of color temperature correction, lacking additional light shaping or diffusion properties.

Frequently Asked Questions

The primary function of this gel sheet is to convert a daylight-balanced light source, typically 5500K, to a warmer color temperature of 2900K, simulating tungsten light.
The product is described as a "sheet," suggesting it is provided in a larger format that users can cut to their desired size and shape for various lighting fixtures.
When applied to a 5500K light source, this CTO gel will shift its color temperature to approximately 2900K, producing a warm, amber effect.
No, this is a CTO (Color Temperature Orange) gel, which is specifically designed to warm up light sources by converting them to a lower Kelvin temperature.
CTO stands for Color Temperature Orange, indicating its purpose in converting cooler light sources to warmer, more orange tones.