Comment Re:Alternative ways to develop? (Score 5, Informative) 262
Actually, the process Kodachrome uses to produce the color is still based on the fundamental instability which plagues all chromogenic systems- even though the dye coupler is not in the emulsion(as would be the case with Kodacolor and Ektachrome), the fact is that the process is still the same. A dye coupler combines with developing agent by-products in proportion to the amount of underlying silver that is developed. I've always wondered how Kodachrome achieved greater archival permanence; maybe it is because the coupler/developing agent byproduct reaction happens only in processing and the dye coupler does not have a chance to become spoiled while unused sitting in an emulsion.