Early daguerreotypesrequired long exposure times, typically three to fifteen minutes, making portraiture a challenging endeavor.
On the back of his portrait, Cornelius wrote, The first light Picture ever taken.
Daguerreotype of unknown man, 1847-1851.
Photo: Robert Cornelius viaLibrary of Congress(Public Domain)
Photo: PNW Production viaPexels
Robert Cornelius performing a chemical experiment, December 1843 (Photo: Martin Hans Boye viaWikimedia Commons, Public Domain)
Daguerreotype of unknown man, 1847-1851. (Photo: Antoine Claudet viaWikimedia Commons,CC BY 2.0)
