This 20 x 24" Cinegel #3404 Rosco N.9 Filter sheet meticulously manufactured on a heat-resistant base polymer utilizing a patented deep-dyed technology for optical clarity.
On-line computerized colorimetry continuously monitors color and density against strict standards, thus assuring a reliable and consistent product.
Neutral Density filters reduce the level of exterior light and bring it within the exposure range of interior light levels.