Why The First Photograph Was An 8-hour Exposure And What Had To Happen To Get It

Why the first photograph was an 8-hour exposure and what had to happen to get it. Sources: Nicéphore Niépce (1826): Niépce used bitumen of Judea, a resin that hardens only when exposed to light, requiring massive exposure times. Thomas Wedgwood (1800): Earlier attempts by Wedgwood and Davy failed completely because they could not fix the image, causing it to darken entirely. Louis Daguerre (1839): Daguerre’s later daguerreotype process reduced exposure to minutes by using mercury vapor to develop the image. Geiger and Hallwachs (1887): The photoelectric effect discovery eventually led to electronic sensors that could capture light instantly, ending the era of long exposures. The air is still and heavy with history, and this is the scene inside Saint-Loup-de-Varenne in 1826. This is the work of Thomas Wedgwood, he worked in England during the year 1800. The year is 1839 — the air smells of mercury and vinegar. We jump forward to Germany in 1887, the air is cold and thick with expectation. A written fact-check was run on this script before it was recorded. Sources are listed above; check them yourself.