Color Temperature Filters

Omega Color Temperature (CT) filters are also available to replace all absorbing glass and plastic filters. These coatings are used to shift the black body temperature of a light source to higher or lower values. As a result of an efficient coating process, little of the desired light is lost, and the resulting increase in exposure is minimized. With these custom coatings it is possible to provide small shifts of as little as 10 Mired to as much as 300 Mired. This range of values allows the shifting of a candle light to that of an overcast sky.

Unlike the plastic gels and absorbing glass filters typically used, our Color Temperature filters are produced using high efficiency, dielectric interference coatings. With the inherent efficiency of interference coatings, the tendency to solarize or discolor is eliminated. In addition, by using interference rather than absorption, these products can withstand temperature well in excess of 100°C.