Daguerreotype
Nom de l'objet : | Daguerreotype |
Type de l'objet : | Photograph |
Catégorie de l'objet : | Graphic Documents |
Numéro d'accession : | 1995.619 |
Date de fin de production : | 1995-12-31 |
Description : | It is held in an oval case and depicted is a women |
Commentaires : | The image in a Daguerreotype is formed by amalgam i.e. a combination of mercury and silver. Mercury vapor from a pool of heated mercury is used to develop the plate that consists of a copper plate with a thin coating of silver rolled in contact that has previously been sensitised to light with iodine vapour so as to form silver iodide crystals on the silver surface of the plate. Exposure times were later reduced by using bromine to form silver bromide crystals. The image is formed on the surface of the silver plate that looks like a mirror. It can easily be rubbed off with the fingers and will oxidise in the air, so from the outset daguerreotypes were mounted in sealed cases or frames with a glass cover. |
Établissement : | Strait Area Museum Facebook-Strait Area Museum |
Ville de l'établissement : | Port Hastings |
Province de l'établissement : | Nova Scotia |
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