Diaphot
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The Diaphot is an extinction meter. It was offered by ICA and later Zeiss Ikon from 1921 to 1934. From 1936 to 1940 it was offered in a slightly modernized style. Even the modernized model bore the star logo of ICA.
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| image by Joseph Greco (Image rights) |
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| Ica Diaphot image by Anssi Puisto (Image rights) |
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| Zeiss Ikon Diaphot image by Anssi Puisto (Image rights) |
