CTB's for boosting the color temperature of tungsten or other warm light sources.
CTO's for warming up daylight balanced sources like strobes, HMI's or LEDs.
Plusgreens for balancing with light fixtures that have a heavy green spike such as fluorescent bulbs.
Minusgreens for removing the green content found in light fixtures such as inexpensive LED fixtures.
Rosco Colour Correction Filter Kit
A range of the most popular color correction filters from Rosco's Academy Award®; winning range of Cinegel lighting filters for photographers and filmmakers. The kit contains one piece each of 16 different correction filters that will adjust the color rendering of various light sources.