Discussion
Consider the following statements about observer metamerism.
1. It arises from normal variation in cone sensitivities.
2. Highly metameric pairs are the most vulnerable to it.
3. It affects spectral matches as much as metameric ones.
Answer: A
The first two are correct and follow from the mechanism. The third is wrong, since identical spectra match for every observer without exception. A spectral match is immune to the effect. Identical curves agree for every observer.
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