'Le Grand Photographe' whole plate daguerreotype camera, c 1840.
© National Media Museum / Science & Society Picture Library
This whole plate daguerreotype camera has a convertible lens system, and is inscribed 'Photographe a Verres conbines invente Charles Chevalier Ingenieur Opticien Breuete Palais Royal 163 Paris.' The camera has been disasembled to show the focusing screen, dark slide plate holder, iodine box with ground glas cover, and wooden case. This model was introduced in 1840, within a year of the first practicable photographic proces. The hinged side panels allow it to be collapsed down for ease of transport.