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Discussion

Consider the following statements about illuminant selection.
1. Graphic arts conventionally assess under D50.
2. Textiles conventionally assess under D65.
3. One illuminant is technically correct for every industry.

  • A.1 only
  • B.All of them
  • C.1 and 2 only
  • D.3 only

Answer: C

Correct answer: 1 and 2 only

Statements 1 and 2 record the two conventions correctly. Statement 3 is the misconception behind most illuminant disputes - there is no universally correct illuminant, only the one an industry has agreed on or the one under which the product will actually be seen.

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