Bromide enlarging and contact printing : how to do it (1892)
Dresser, A. R · London : Fry Manufacturing Co. · leaf 44
late will be required. It is best to take a large sheet of brown paper, cut a hole in the middle of it just the size of the negative, and place the paper upon the window, and the negative upon it so that it occupies the cut-out space. This prevents any extraneous light from entering the lens of… … The Camera in position opposite the negative, opposite to the negative. Focus the latter in the usual way, just as obtains in making a landscape or a copy nega- tive from an oil painting. That is to say, if the picture upon the ground glass is not sufficiently large the camera must be taken nearer…
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
