![]() ![]() In the chart below we can see the equivalents to the system using 4 - 5.6 - 8 - 11 - 16 - 22 - 32 - 45. These figures indicating aperture are not the familiar series we are used to see in 35 mm cameras. I tried to trace it back, tried to know to whom in belonged, but the seller, having an antique shop there, could not remember how it all arrived to his hands. I bought it in a shoe box together with a Voigtlander Orthoscop from 1858, a Tessar also from 1911 and a Rodenstock Rapid Aplanat 2 from 191020.Īlso some parts of rollerblind shutters and lens elements, that I could not identify, were in the pack. Go to: Lens Vade Mecum It has more than 700 pages with thousands of lenses description, pictures and diagrams. It is an excellent source for understanding the genealogy of most of the lenses ever produced and the problems associated to lens construction. Most of the above information I researched on A history of the photographic lens by Rudolf Kingslake, Academic Press Inc. In that case the combined foci is multiplied by 1,73, but as a trade off there is a significant loss in luminosity. The name Dagor was adopted only in 1904 and the design was licensed to almost every lens maker ever since. Only four years old, Goerz was producing a Rapid Rectilinear lens called Lynkeioskop, one of the best RR versions. ![]() Goerz Berlin Lens S Serial Number Is The.
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