Jumelle de Nicour
Year unknown·Camera
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About
The Jumelle de Nicour[1][2] is a camera for small glass plates (40mm square) which in 1866 when the camera was made, were collodion, not gelatine emulsion. The camera and its viewfinder resemble the two halves of a pair of binoculars; but the front lenses are at the narrow end. The two binocular glasses are optically identical, and linked for focusing with a central thumb-wheel as in normal binoculars. However, one lens throws its image onto a small ground-glass screen (not direct to the eye as