The Sekonic C500 is the world's only photographic colour meter designed for film and digital CCD and CMOS sensors. This device is used in both still and motion photography to be able to accurately measure colour temperature which can save you time in post production. Particularly useful in unbalanced light, this meter can measure both flash and ambient light. You can have readings in Kelvin, Lux (lx) and Foot Candles (fc). There are 19 pre-sets to accommodate variables such as film type, light sources, digital sensors and personal preferences. This product is for serious applications to allow photographers and cinematographers who demand correct lighting conditions.