Back Fotocromu AST Fotocrom Catalan Fotochrom Czech Photochromdruck German Fotokromo Esperanto Fotocromo Spanish Photochrome French Fotocromo Galician פוטוכרום HE Fotocromia Italian
Photochrom, Fotochrom, Photochrome[Note 1][2] or the Aäc process[citation needed] is a process of hand-colouring photographs from a single black-and-white negative with subsequent photographic transfer onto lithographic printing plates. The process is a photographic variant of chromolithography (color lithography). Because no color information was preserved in the photographic process, the photographer would make detailed notes on the colors within the scene and use the notes to hand paint the negative before transferring the image through colored gels onto the printing plates.
- ^ "Photochrom". Lexico UK English Dictionary. Oxford University Press. Archived from the original on 2020-03-22.
- ^ "Photochrome (1939–Present)". University of Vermont. Archived from the original on 2008-07-24.
Cite error: There are <ref group=Note> tags on this page, but the references will not show without a {{reflist|group=Note}} template (see the help page).