#TIL: Autochrome is a colour photography process patented in 1903 that uses multicoloured microscopic potato starch granules to make some of the first colour photographs.
Developing Autochrome glass plates is akin to making black and white positives (a process that’s still in relatively wide use today) — but with a twist. Unfortunately, constructing them is a laborious and expensive process. As noted on Peta Pixel, there’s just one person who’s actively working on it today…
Dmitri