This is the Lee Magenta 10 CC Filter (Poly) for 3.9 inches (100 mm) System [LEEB100CC10M]
The filters in this range can be used either in front of or behind the lens, and reduce the transmission of light at specific wavelengths. Their primary use is to color balance films, however, the effect of each filter must be determined by tests, or specified by the film manufacturer. They are also useful for correcting light sources for which no standard conversion filter exists, or for introducing a deliberate colour bias. Magenta principally absorbing green principally absorbing green ...Contact us if you Need more help.