Haunted Daguerreotypes

The daguerreotype process, or daguerreotype, was the first publicly available photographic process, widely used during the 1840s and 1850s.

Invented by Louis-Jacques-Mandé Daguerre and introduced worldwide in 1839,[4][5][6] the daguerreotype was almost completely superseded by 1860 with new, less expensive processes yielding more readily viewable images. There was a revival of daguerreotype in the late 20th century by a small number of photographers interested in making artistic use of early photographic processes.The first authenticated image of Abraham Lincoln was this daguerreotype of him as U.S. Congressman-elect in 1846, attributed to Nicholas H. Shepard of Springfield, Illinois

To make the image, a daguerreotypist would polish a sheet of silver-plated copper to a mirror finish, treat it with fumes that made its surface light sensitive, expose it in a camera for as long as was judged to be necessary, which could be as little as a few seconds for brightly sunlit subjects or much longer with less intense lighting; make the resulting latent image on it visible by fuming it with mercury vapor; remove its sensitivity to light by liquid chemical treatment, rinse and dry it, then seal the easily marred result behind glass in a protective enclosure.