Roscolux CC4290 CalColor 90 Blue Color Filter

Photographers and lighting designers choose C4290 CC90B to diminish red and green by 3 stops in order to bring out more blue. 

Use R4290 CC90 Blue to enhance photographic lighting effects for camera. 

 RX4290 CC 90Blue is the most saturated blue gel in the CalColor line of calibrated color filters for additive or subtractive color mixing.