Rosco 80 Primary Blue is Rosco's most popular color filter.
Roscolux color filters, affixed in holders or color frames in front of the lens, change the color of light in architectural or theatrical fixtures.
Deep dyed polyester film.
Primary blue. For use with three color light primary system in cyc lighting. (Transmission = 9%).
Light Loss: -3.5 fstops
Sheet Size: 20"x24"