and the lens is fixed and prevents the making of enlargements beyond a certain size. The folding Kodaks (except the No. 1 and No. 1A) and the Cartridge Kodaks, including the Screen Focus Kodak, lend themselves particularly well to enlarging. The method of utilizing these instruments is shown in the… … A room with one window is preferable as this of course lessens the difficulty in excluding white light. It must be remembered that although Bromide paper is much less sensitive than a dry plate, an instant’s exposure to white light will ruin it. The window should be blocked up to exclude white…
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.