Ambrotype procédé photographique, retouché avec habileté d'un décors végétal, pour donner de la couleur. Devenu très rare, surtout dans cet état exceptionnel, il est le témoin de la mode des années 1910-1920. Hauteur 16 cm, largeur 11 cm . Ambrotype : Procédé photographique inventé par James Ambrose Cutting en 1854. Il s'agit d'un négatif sur plaque de verre au collodion humide dont l'image est blanchie par un traitement chimique. Lorsqu'on pose ce négatif sur un fond noir, l'image apparaît positive. L'ambrotype concurrence le daguerréotype, il est rapide à obtenir et peu coûteux.

For our English-speaking friends: This rare and charming ambrotype accentuated with the hand painting floral pattern has been executed around 1910-1920. Perfect condition. 6"1/4 tall, 4"1/4 width. The ambrotype process was patented in 1854 and enjoyed great popularity for a few short years, and again during the Civil War. It produced pictures on glass instead of metal plates. Like the earlier daguerreotype, each image is unique, made one-at-a-time in the camera. The glass is flowed with a sticky material known as iodized collodion. It is then sensitized by being dipped into a bath of silver nitrate, and exposed in the camera while still wet. A chemical developer is used to bring out the image. The glass plate is then backed with black material--paint, cloth or paper--and furnished in a case similar to those used for daguerreotypes. The ambrotype process was marketed as an improvement, because the finished image lacked the glittery, elusive reflective quality of daguerreotypes and was therefore easier to view. The detail and tonal range, however, tend to be less impressive than in the earlier process.

Prix : 60.00 €

Frais de Livraison ou Achat Immédiat

Contactez nous Voir votre panier