It's over 50 years after the invention of photography. Plate photography was already quite a robust technology at that point in time. Sensitivity and exposure t

It's over 50 years after the invention of photography. Plate photography was already quite a robust technology at that point in time. Sensitivity and exposure times weren't too bad either. The first experimental color photographs were made some 20 years earlier. For reference this color photo was made about 10 years after these: https://www.loc.gov/resource/ppmsc.03959/ https://www.loc.gov/resource/ppmsc.03959/