heliographs (photographs)
- Scope note
- Photographs made by dissolving light-sensitive bitumen in oil of lavender and applying a thin coating over a polished metal plate, or other substrate. The process was invented ca.1822 by Joseph Nicéphore Niépce, and is considered the first process to produce a permanent photographic image from a camera projection.
- Date of creation: 18-Nov-2024
Accepted term: 18-Nov-2024