In thinking about the "accuracy" of color photography, we should review the characteristics of photography in general in terms of representation and interpretation. Black-and-white photography is accepted as a stylized medium; values are intentionally accented or subdued in reference to their "photometric-equivalent" value. There is little or no "reality" in the blacks, grays and whites of either the informational or expressive black-and-white image, and yet we have learned to interpret these values as meaningful and "real". -- Ansel Adams, Excerpt from a draft of an article on Polacolor, 1962 --