In the French-speaking world, traditional, non-digital photography is known as “photographie argentique”. The word “argentique” derives from the noun “argent”, which is the French word for silver. Thus, in French, one speaks of “argentique” (silver-based) and “numérique” (digital) photography. I have always thought that the digital/analog dichotomy refers to audio signals. Would it not be more appropriate to refer to analog photography as silver-based photography?