Over this period of time, various changes were made to the lenses. And Zeiss lenses to this day also remain available for use with many commercial products including copiers, photogrammetric cameras, comparators, etc.
A product type code reappeared in 1990, now in the form of a two digit code preceding the two letter date code.Īnd Zeiss lenses to this day also remain available for use with many commercial products including copiers, photogrammetric cameras, comparators, etc. Serial numbers therefor can only be used to date lenses if we have some way to link serial numbers to years. When there are three letters, the year of manufacture is always indicated by the first two. It would then be asked of a chemist to invent and manufacture those raw materials necessary to make the new designs possible. Link: => /d?s=YToyOntzOjc6InJlZmVyZXIiO3M6MzY6Imh0dHA6Ly9iYW5kY2FtcC5jb21fZG93bmxvYWRfcG9zdGVyLyI7czozOiJrZXkiO3M6MzY6IlplaXNzIHNlcmlhbCBudW1iZXIgcHJvZHVjdGlvbiBkYXRlcyI7fQ= The photos accompanying this lot are an important part of the description.Carl Zeiss Jena lenses Issue date by serial number Supplied with original leather box in very good condition and 2 lenses with sun filter. These binoculars are an absolute rarity and a must-have for every collector. The binoculars have central focusing and dioptric focusing on the right eyepiece.īoth tubes are clear, with a sharp, collimated image and the lenses are free of scratches.Ĭentral focusing at low temperatures is very hard, so removal and replacement of the original lubricant would be necessary for optimal use. 1906412, produced in 1936 and in excellent condition, probably it has been little used metal parts and handle cover are shiny and free of scratches.įor their age the binoculars are in excellent condition (minor sings of use, see photos). Carl Zeiss Jena Telarem 18x50 binoculars.īinoculars with serial no.
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