Does anybody know what is the Gamut of 35mm film? Adobe RGB? Pro photo?
I'm assuming that you are referring to the gamut of the captured image, not the range of colors to which the film responds. I'm also assuming that you're referring to color transparency film, since color negative film is not intended to directly produce colors, but spectra which are turned into viewable colors by another photographic medium, and the gamut of B&W film is boring, devolving down to Dmin and Dmax.
There are many kinds of transparency films, and all have somewhat different gamuts. What they have in common is that they produce colors with a
subtractive model, passing light through layers of cyan, magenta, and yellow dyes. Thus, it is difficult for transparencies to produce some light, saturated colors.
You refereed to two RGB color spaces, one of with is physically realizable (Adobe RGB) and one which is simply a mathematical construction (ProPhoto RGB). RGB color spaces have an entirely different mixing model from transparency films; they
add red, green, and blue light. Thus it is difficult for monitors to produce some saturated dark colors.
Since the mixing models are different, and the colorants are different, the shape of the gamut of transparency films won't match that of monitors, and thus it would be inaccurate to say that
any transparency film's gamut is close to that of
any RGB monitor.
If we're looking for a digital medium to compare transparency film to, I suggest printer media. Same mixing model -- with dye printers, anyway. Similar colorants -- with four-color printers, anyway, although having black does make things a little different. And, if the printers are printing on transparent media, similar viewing.
Jim
