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Zograscope

Pronounced /ˈzɒɡrəskəʊp/Help with pronunciation

An eighteenth-century zograscope
An eighteenth-century zograscope made from mahogany

The zograscope, consisting of a lens and mirror on a wooden stand, was a device of the eighteenth century for viewing what were called perspective prints — pseudo-stereoscopic images — sometimes also known as vues d’optique. It was named the Zograscope for reasons that are now lost to us, though it was also more variously and prosaically called a diagonal mirror, an optical pillar machine or an optical diagonal machine.

The picture to be viewed was placed on a table and observed through a slanting mirror by means of a lens large enough to allow both eyes to see the picture at once. Its curved edges distorted the image to give a surprisingly good sensation of depth. The surviving examples are highly collectible pieces of elegant mahogany furniture, designed for the drawing rooms of well-to-do families who desired the latest in technology for their after-dinner entertainment.

They wanted, to quote a catalogue of 1784, to look at “remarkable Views of Shipping, eminent Cities, Towns, Royal Palaces, Noblemen and Gentleman’s Seats and Gardens in Great Britain, France and Holland, Views of Venice, Florence, Ancient and Modern Rome, and the most striking public Buildings in and about London”. These pictures were available at a price of a shilling plain or two shillings coloured, a substantial sum for the period.

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Copyright © Michael Quinion, 1996–. All rights reserved.
Page created 20 Mar. 2004

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This page URL: http://www.worldwidewords.org/weirdwords/ww-zog1.htm
Last modified: 20 March 2004.