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Rosco 4332268884 Cinegel Tough 1/2 MinusGreen Lighting Filter — main product image
Rosco

Rosco 4332268884 Cinegel Tough 1/2 MinusGreen Lighting Filter

Rosco's Tough 1/2 MinusGreen filter tames unwanted green cast from fluorescent and discharge lighting sources on set.

$12.95*
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*Price sourced from Amazon.com. Last updated:Jun 27, 2026.Price and availability are subject to change.

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Overview

The Rosco Cinegel Tough 1/2 MinusGreen is a color correction filter designed for film, video, and photography professionals who need to neutralize the green color shift produced by fluorescent tubes, HMI fixtures, and other discharge lighting sources. Fluorescent and discharge lights commonly emit a pronounced green spike that can cause unflattering skin tones and color casts that are difficult to correct in post-production. This filter selectively absorbs green wavelengths at a half-strength intensity, giving lighting technicians precise control over how much correction to apply—either on its own or stacked with 1/4 or full MinusGreen sheets for heavier correction.

Manufactured on Rosco's deep-dyed base, the Tough version of this filter offers improved durability and heat resistance compared to standard polyester gels, making it more suitable for use on hotter lighting instruments without warping, fading, or melting prematurely. The 20-by-24-inch sheet size provides ample material for cutting custom pieces to fit barn doors, frames, or gel holders on a variety of fixtures. With a transmission rate of 71%, the filter maintains a reasonable light output while achieving the desired color correction, keeping exposure adjustments manageable on set.

Key Features

Rosco

20x24

Partial green absorbing filter. (Transmission = 71%).

Specifications

Brand
Rosco
Product Line
Cinegel
Filter Type
Color Correction (1/2 MinusGreen)
Material
Deep-dyed base (Tough)
Sheet Size
20" x 24"
Transmission
71%

Pros & Cons

👍 Pros

  • Deep-dyed base material resists heat better than standard polyester gel filters
  • Half-strength correction allows precise fine-tuning when combined with other MinusGreen grades
  • 71% transmission retains a good amount of light output while correcting color
  • 20x24-inch sheet provides enough material to cut pieces for multiple fixtures

👎 Cons

  • Single 20x24-inch sheet may not be enough for large or numerous lighting fixtures on bigger productions
  • Must be manually cut to size, with no pre-cut options for standard fixture dimensions
  • Half-strength correction may be insufficient for heavily green-shifted discharge sources requiring full MinusGreen
  • Filter material will degrade over time when used on high-heat instruments despite the tougher base

Frequently Asked Questions

The "1/2" indicates this is a half-strength green-absorbing filter, providing a moderate correction. A full MinusGreen would remove more green, while a 1/4 would remove less, allowing you to fine-tune how much green cast you subtract from a light source.
This filter has a 71% transmission rate, meaning it absorbs approximately 29% of the light passing through it while selectively reducing green wavelengths.
It comes as a 20-inch by 24-inch sheet, which can be cut to fit various lighting fixtures.
The "Tough" line from Rosco uses a deep-dyed base material that is more heat-resistant and durable than standard polyester filters, making it better suited for use on hot lighting instruments.
It is designed to reduce the green spike commonly produced by fluorescent tubes, HMI ballasts, and other discharge lighting sources that tend to introduce a green color shift.

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