Kodak Gel, Wratten 3X3 Kodak 81Ef

81EF: Light Balancing Filters
Enable minor adjustments in the color quality of illumination to obtain a cooler (bluish) or warmer (yellowish) color rendering.) (1563485 75mm sq)
-------------------------------------------
Our industry-standard KODAK WRATTEN Filters just got better. With the same spectral response and color as current WRATTEN Gelatin Filters, the new KODAK WRATTEN 2 Optical Filters also offer several improvements:

Now more rigid/durable
Easier to handle
Color consistent today as well as 6 months from now
Basic Color Filters
Special Dye Color Filters
Color Compensating Filters
Color Conversion Filters
Light Balancing Filters
Infrared Filters
Neutral Density No. 96 Filters
Handling of KODAK WRATTEN 2 Optical Filters (PDF)

The best just got better.
Enjoy consistent performance and reliability. When you require critical color correction in visible, UV, or infrared spectrum or when your project demands critical color light attentuation, enjoy optimum results with WRATTEN 2 Optical Filters.

World-class WRATTEN 2 Optical Filters are a must-have for photographers, cinematographers, engineers, and scientists who require analytical consistency for their realistic and creative effects/applications.

WRATTEN 2 Optical Filters provide ease of use. They are less sensitive to humidity, less prone to static cling. The new filters are easier to install and sort into optical components. Fingerprint removal is also easier. Choose with confidence.

In your business, you depend on consistent, optimal performance. WRATTEN 2 Optical Filters are designed for precise work. They offer uniform thickness and excellent optical quality, assuring product is functionally the same among batches.

And there's a wide range of sizes and WRATTEN 2 Optical Filters to choose from.