Diaphot
The Diaphot was 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.
Links
- Diaphot in Ollinger James' Light Meter Collection [1]
- model of 1936 in Reinhard Krahé's Krähenseiten [2]