Traite encyclopedique de photographie
An encyclopedic photography treatise by Charles Fabre, published in Paris by Gauthier-Villars in 1889, aimed at photographers and technical practitioners. The pictures are plain line diagrams of optics and apparatus: a lamp-lit optical ray layout, a hatched sectional view of a cylindrical lens mount, and a nodal-point diagram showing image and object geometry, useful for designers wanting schematic, scientific line art with clean hatching and dashed construction lines.
