Handbook of the practice and art of photography (1875)
Vogel, Hermann Wilhelm, 1834-1898, Molling, Edward F · Philadelphia, Benerman & Wilson · leaf 26
ngth, and to modify the direc- tion of the entering rays in various ways. The cords for the side curtains pass over the rollers r, r, r, r, which are fastened near the roof to the board My and at the floor to L; the cords can be tightened by the screws, g, g. The wires d, dy of the side curtains,… … The curtains are made of very opaque double blue material. The above system was especially designed for portraiture, which, however, is not the class of work done at the Academy ; still it does excellent service in the taking of plastic objects. Immediately adjoining the glass-house, and on the…
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
