E. FRANCAIS – combination lens set N°2
Improved combination lens set by the Optician E. Français for triple combination: "...The combination, comprising 3 lenses.... for a very bright lens with aperture f6...". The set has 7 elements and a set of Waterhouse stops.
MarqueE. FRANCAIS - Trousse Optique N°2
MarqueE. FRANCAIS - Trousse Optique N°2