Optical condition of these binoculars is excellent for an original, un-restored example. And the addition of T3M multi-coated optics, introduced in 1976 by Zeiss DDR as a world first, made it even more popular as the ultimate “all-purpose” glass. The Deltrintem itself, introduced in 1920, was one of the most successful ever Zeiss models, a truly versatile compact binocular. And in this “transitional” model certain new features, which were to be carried over to the Docter version, have already appeared, namely the new pattern cast-alloy focus wheel and matching outer eyepiece shells, together with foldable rubber eyecups. Gone is the “Made in DDR” script, replaced by “Made in Germany,” found on all Zeiss products until 1945. Later that year the company was sold to Docter Optic who continued production of the model but under their own brand. They were manufactured in 1991, after the re-unification of Germany, at the former DDR Zeiss plant in Eisfeld, near Jena. These binoculars, with their very high serial number, are probably some of the very last Zeiss glasses ever to bear the world-famous doublet lens “Carl Zeiss Jena” Kuithan logo introduced in 1904. Carl Zeiss Jena “Deltrintem” 8 x 30 binoculars serial number 7300856.
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