This 20 x 24" Gam CineFilter #1558 CTO .9 Neutral Density / GamColor #390 Walnut Filter sheet is a deep-dyed polyester color filter is a superior color medium for use with all types of light. The filter's walnut shade converts daylight sources to 3200K and its neutral density rating reduces light by 2.8 stops.
Because it is deep dyed, the color will not scratch off the surface and is optically clear
The clear polyester base is highly resistant to tears, punctures, cracking, and deterioration in high-heat applications
The dyes used to produce GamColor are stable and heat resistant
The chemical process ensures that the colors will be clean and clear with excellent transmission and consistency
GamColor quality control includes constant monitoring, from raw material to finished product.