Skiopticon image from the Department of Photography at the Royal Institute of Technology. Use by Professor Helmer Bäckström as teaching material. Bäckström was Sweden's first professor in photography at the Royal Institute of Technology 1948-1958 .. Stairwell on the picture is written: Direct Kleberilver Eastman. For more info: see the photographic manual of Helmer Bäckström. Nature and Culture. Other revised edition 1958-59. Cape. 75-79 toning procedures for silver images (page 585 and following).

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Size: 2099px × 2381px
Photo credit: © BTEU/TEKNISKA / Alamy / Afripics
License: Licensed
Model Released: No

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