Application de la Photographie aux Levés Militaires [Application of Photography in Military Surveys]
Paris, Librairie Militaire J. Dumaine, 1866. Auguste Chevallier's ingenious photographic plane-table produced a disc-shaped horizontal panorama by means of a rotating lens. Comparing images taken at different vantage points allowed the surveyor accurately to calculate distances and heights as with a regular plane table, but with less room for human..... More