Tag Archives: Rudolph

rapid rectilinear lens design

Posted on August 18, 2018 by Robert

Toronto.After the announcement of photography early in 1839, there was a flurry of competing lens designs across Europe, each design trying to better the resolution and error correction qualities of the other. In 1866, two Germans, one an immigrant to … Continue reading →

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Some Thoughts on Optical Institutions

Posted on June 13, 2017 by Robert

Toronto.An optical institution was a German optical workshop turning out various optical devices and lenses. Other countries used other names. As cameras and binoculars and microscopes became popular,  brands like Zeiss, Zeiss-Ikon, Leitz, Ross, Bausch & Lomb, Rochester Optical, Kodak, … Continue reading →

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