15 jan 1878 ano - Photogravure is an intaglio printmaking or photo-mechanical process whereby a copper plate is coated with a light-sensitive gelatin tissue which had been exposed to a film positive, and then etched, resulting in a high quality intaglio print that can reproduce the detail and continuous tones of a photograph
Adicionado na linha do tempo:
Data:
15 jan 1878 ano
Agora
~ 147 years ago