I am exploring the idea of making a DIY spectrometer(and colorimeter) for testing various material samples for interior visualization. It's sort of a hobby project for my curiosity and pleasure that might end up useful for my actual work with CG.
I am struggling to find a trustworthy information source for light wavelengths sRGB color space primaries are supposed to be. They are supposed to be the same as in REC.709 as far as I understand. Are the actual wavelengths of sRGB RGB primaries defined and if so what are they in nanometers?