A dictionary of photography for the amateur and professional photographer (1889)
Wall, E. J. (Edward John), 1860-1928 · New York : E. & H.T. Anthony · leaf 174
164 DICTIONARY OF PHOTOGRAPHY. hole in one end of the face of the frame, have a deal board about 12 ins. long and 6 ins. broad, and arrange as shown in diagram … dd, deal board; ss, two nails driven well into board to pre- vent frame slipping ; p, the support for frame ; and b, the black card to prevent top light. A mirror or white card is laid upon dd underneath the frame f, so as to reflect the light up through the negative lying in the rebate of the…
Photography
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