hrst: Absolutely correct: whether 'writing' digitally to RA4 paper or doing it the standard optical way there is STILL the process itself which imparts the 'tiny fog' I speak about.

BUT...if the color print is made in a printer, the color that is not wanted ('tiny fog layer') simply does not get put onto the paper because the white part does not get compromised by any chemical process: it STAYS pure white. THAT is where digital, at least theoretically, provides potentially purer colors. - David Lyga