From Wakapon
- RUFF STUFF
CCT = Correlated Color Temperature (6500K, etc.)
CIE Illuminants =>
General lighting conditions (when taking a picture, or displaying one).
Spectral characteristics similar to natural light sources
Reproducible in the laboratory
1931 Illuminants: Illuminant A = Typical Incandescent Light Illuminant B = Direct Sunlight Illuminant C = Average daylight from total sky (ambient sky light)
1963 Illuminants (more accurate daylight conditions): Illuminant D followed by the first 2 digits of the CCT (e.g. D65 = D 6500K)