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Chautard Foligraphe |
 Version française |
Manufactured or assembled in France from 1897 to (After) 1902.
Index of rarity in France: Rare (among non-specialized garage sales)
Inventory number: 2967
See the complete technical specifications
Chronology of cameras Chautard
The Foligraph was patented (number 252 198) on December 4, 1895, by Jean Linder under the name Polygraphe.
One of its original features is the loading mechanism. The plate holders are attached to the rear part and hinged with a hinge. Retracting the exposed plate is done by tilting a small lateral lever and turning a key located at the rear one turn. This key operates a screw that advances the entire plate holder block while the released plate tilts forward, revealing the next one, which is at the focal plane. A series of small numbers, visible through a tiny hole, allow you to know the number of exposed plates.
The focusing is done by the upper button operating a rack on the lens. The graduations of the iris diaphragm are not readable during use, which, combined with the presence of the number "1" stamped on certain parts, suggests that it is a prototype that may not have been marketed. According to Jean-Loup Princelle (who compiled the documentation and transferred the camera to me), no other known examples exist in this format.
The shutter is of the guillotine type, it is cocked by a lever on the side and triggered either by the bulb or by the small push button next to it. Another button on the other side allows adjustment between six values (from 1 to 6) using a brake. A selector on the front near the lens allows for either a time exposure or an instantaneous one.
Framing is done with two large clear viewfinders, one of which can be converted into an eye-level viewfinder.
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