Archived posting to the Leica Users Group, 1999/07/30
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]> What Voigtlander did to Petzval or what Nikon and Canon did to Zeiss and > Zeiss Ikon and Leitz was not a case of improving on an existing product. > It was a straight theft. No improvement. No further research. Just a > direct copy. I'm hardly an expert on this subject but an old Canon brochure I have from the 1957 states, regarding their 50mm F1.5 lens, "A super speed standard lens originating from the so-called "Sonnar" type and embodying original ideas of Canon's lens designers." It doesn't mention if they improved on the "tessar" derived 50mm F3.5 lens they also made during this time period. Jim Bielecki