Bromide paper : instructions for contact printing and enlarging (1896)
Just, E. A · Bradford : P. Lund, Humphries · leaf 139
ike the front of an ordinary camera, and is also detach- able, so that lenses of different foci may be inserted. All these movable parts — i.e., the three condensing lenses, the negative holder, and the lens holder — slide along grooves made at the bottom of the box parallel to the optical axis. To… … To make these adjustments easily and with safety, the sides of the box with the exception of the framework are quite open, these openings being closed by tight-fitting lids d, with catches, and a black cloth after everything has been adjusted. In order to be able to convince one's self of the…
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
