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p.10 #16 · 2 new lenses, 17 and 24mm TSE | |
Nikkor lenses made quite a reputation as lens leaders in the 1930's because one of Zeiss's lens gurus fled to Japan and assembled a team there. (Nikons cameras were not up to snuff unfortunately at that time) In fact, Canon even asked Nikon to make some lenses for their own camera line.
After WWII, Zeiss was broken up into an East bloc and West bloc company. Of course, the US and UK helped wisk away the top scientists first and get them settled in Oberkochen, leaving the lesser skilled scientists left in Jenna. As a result, Zeiss/Jenna floundered and never was able to do the Zeiss name justice and eventually dissolved.
Lens designers at Leica have their own design philosophy. Most of those lenses are designed to have edge to edge sharpness at wide open aperture, where-as all other companies lenses need to be stopped down a couple stops to achieve perfect edge to edge sharpness.
Pentax developed a method that could mass produce multi-coated lenses in the early 1970's. Zeiss wanted in on that, and traded their 15/3.5 lens design in exchange for rights to that technology.
Where is all this going? Lens designers are sort of practitioners in the black arts. One just doesn't press a button that says 'great lens' and one pops off the assembly line. The lens diagrams you see published are only that. Diagrams of shapes. Refractive indicies of the glass, the elements in the glass, the coatings, the degree of precision in machining the surfaces, etc, etc, all enter into the equation. These guys are of an ultra-elite club and there are very few of them.
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