Ambrotype Tintype Heliography Daguerreotype

Ambrotype: A photograph that creates a positive image on a sheet of glass using the wet plate collidion process.

Tintype: A photograph made by creating a direct positive on a thin sheet of iron coated with a dark lacquer or enamel and used as the support for the photographic emulsion.

Heliography: Early photography that used naturally occurring asphalt, as a coating on glass or metal to harden into a permanent image.

Daguerreotype: Silvered metal plate exposed to halogen fumes