Discussion
A colour temperature of about 2856 kelvin corresponds to which CIE standard illuminant?
Answer: A
Correct answer: Illuminant A
Illuminant A is defined as a Planckian radiator at 2856 K and represents tungsten filament lighting. It is the warm reference in the standard set, against which D65 at 6504 K and D50 at 5003 K represent phases of daylight.
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