Inspired by the recent article by Martinez Verdu et al., this note urges the explicit adoption of a definition for the camera color gamut. A viable definition seems to be the set of CIE XYZ triplets such that, for any such XYZ, there exists a spectral power distribution in a predefined set whose camera values map through a predefined algorithm to that XYZ. (c) 2007 Wiley Periodicals, Inc.