The A. Schacht Ulm Edixa-Travegon 35mm f/3.5 is a wide-angle single-coated lens for 35 mm SLR cameras with the M42 screw mount.
The lens was designed for Albert Schacht's company by the prominent optics constructor Ludwig Bertele, the famous Sonnar's author, So good was its reputation that later its modification for Leica M39 cameras was distributed by Leica' dealer system when Leica stopped manufacturing its own screw mount lenses. The lens is exceptionally sharp. The build quality is very high.
The early version of the lens you can see here was constructed from chrome-plated brass. There are several cosmetically different variants.
There is also a later black version of the lens (photo 5). It is different in focus and aperture rings position, minimum aperture of f/22, 6-blade aperture. Structurally these lenses are quite different, though their optical schemes are likely to be identical.
Posted by: kr555 Date of publication: 15.05.2013
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