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 1948-58. Motifus depicting "Different types of drawings provide the same color impression". For more info: see Bäckström, Helmer. Photographic manual. Other revised edition. Nature and Culture. Stockholm. 1958-59. Cape. 128 tricolorimetry pages 958 and the following.

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Size: 2354px × 2123px
Photo credit: © BTEU/TEKNISKA / Alamy / Afripics
License: Licensed
Model Released: No

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