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Illuminant U3000 in iQC/iMatch

What is illuminant U3000 in iQC/iMatch?

Ultralume 3000 also known as U3000 or U30 is not a standardized CIE illuminant. Different manufactures of color systems have done their own calculations for illuminant values to use. These different values have led to small differences between color systems. Color iControl version 6.20 updated the U3000 illuminant values to an industry common illuminant. The new U3000 values are listed as U30. For historical purposes the older illuminant values are also available and are listed as U30x.