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Cartes De Visite The carte de visite, or visiting card as it is loosely translated, truly opened up photography to the masses. It should be noted that carte de visite is frequently abbreviated in catalogs as “CDV”. This photographic version of the visiting card followed the popular trend in fashionable society to leave a calling card after a visit. This new format consisted of small paper albumen prints mounted on card. The albumen process [...] Click here to continue reading. Stereograph & Stereoviews A stereograph or stereoview is a pair of almost identical images mounted side by side on a pasteboard card. The mounted images are then placed in a stereoscope. When viewed the images merge to form one three-dimensional image. Some of the key names in early stereo photography in the U.S. working in the 1850′s and 1860′s were E. & H. T. Anthony, George Baker, Charles Bierstadt, Matthew Brady, C. D. Fredericks, [...] Click here to continue reading. Stereoscope or Stereo Viewer In 1832 British scientist Sir Charles Wheatstone invented a viewing device incorporating angled mirrors that became known as the “Wheatstone Stereoscope”. In 1838 he published a paper entitled Contributions to the Physiology of Vision on Some Remarkable and Hitherto Unobserved Phenomena of Binocular Vision. The basic theory of the paper stated that the human eye perceives objects in three dimensions because each eye sees things from a slightly different perspective. [...] Click here to continue reading. Megalethoscope A room-sized viewing device, the Megalethoscope was invented circa 1860 by Venetian optician and photographer Carlo Ponti. Up to five feet wide, the device showed travel and other photographs using daylight magnified by a large lens. The views were up to twelve inches in width. Keystone View Company Stereographs or views are paired images of two slightly different views. These images are created with a two-lens camera. The lenses are offset at about the same spacing as with the distance between human eyes. The dual-lens camera produces paired-stereographic negatives. Load a stereograph into a stereo viewer and the user can see the paired views as if they were a single photograph. Consequently, the stereoscopically combined photographs transform into a [...] Click here to continue reading. |
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