Cotech filters is a company founded in 1979 and it is specialized in the production of colored filters for professional cinema use. The gels and filters are applied to theatrical or cinematographic lights to modify the characteristics of the projected light.
Cotech filters are coated on both sides of the polyester base for more accurate color control, better consistency and longer lasting color. A computer monitoring system is capable of making minute changes to ensure that colors match control samples to obtain near perfect results.