Skiopticon image from the Department of Photography at the Royal Institute of Technology. Use by Professor Helmer Bäckström as lecture material. Bäckström was Sweden's first professor in photography at the Royal Institute of Technology in Stockholm with three-color cartridge from W. Bermpohl. The camera is equipped with a long plate along with filter äckström, Helmer. Photographic manual. Other revised edition. Nature and Culture. Stockholm. 1948. p. 969.

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Size: 2312px × 2162px
Photo credit: © BTEU/TEKNISKA / Alamy / Afripics
License: Licensed
Model Released: No

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