The design of the lens optics were quite labor intensive.
The calculations were done on old calculators.
Some may have included the old ibm card readers.
The hard lens coatings were never shared with Leitz.
That was the ultimate drm.
The calculations were done on old calculators.
Some may have included the old ibm card readers.
The hard lens coatings were never shared with Leitz.
That was the ultimate drm.
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