Posted: Apr 05, 2016 1:09 pm
by tuco
The sharpness is indeed very good, no zoom, for:

[Reveal] Spoiler:
, Autochrome plates required much longer exposures than black-and-white plates and films, which meant that a tripod or other stand had to be used and that it was not practical to photograph moving subjects.[5]
- https://en.wikipedia.org/wiki/Autochrome_Lumi%C3%A8re


How long was the exposure then?