– Until very recently, basically the same binocular without the yellow tint could still be purchased from Docter /Noblex (see separate post about Docter 7×40 B/GA, ×40-b-ga/), but according to news reports, Noblex is closing its binocular production in October 2020. Carl Zeiss Jena Camera Lenses, Carl Zeiss Jena f/2.8 Camera Lenses, Carl Zeiss Binoculars, Carl Zeiss Jena f/2.8 Vintage Camera Lenses, Carl Zeiss Jena Vintage Camera Lenses, Carl Zeiss Binoculars and Monocular, Carl Zeiss Binoculars and Telescopes, Carl Zeiss Marine Binoculars, Carl Zeiss Military Binoculars & Monoculars, Carl Zeiss Jena Fixed. A positive side-effect of the yellow tint: thanks to the higher absorption in the short wave part of the spectrum, contrast is slightly enhanced in misty or foggy weather. The DF features an extremely robust and armored body, a ranging reticle which can be illuminated by a battery powered device and a detector for. The DF is regarded by experts as the finest binocular ever made in Jena. This is achieved by adding ceroxides to the glass the EDF was tested with a dose of about 10’000 Röntgen/hour for a period of 10 hours (40 times the lethal dose for humans) and had to keep at least 50% of its transmission. The DF 7x40 was produced during the 1960s/70's by Carl Zeiss Jena for the East German NVA. 12:00 UTC Weserstadion Platz 11, Bremen, Germany A-Junioren. The image has a characteristic yellow tint Holger Merlitz explains in his book (2nd ed., page 177) that this is due to the use of special optical glass that is resistant to radiation. Werder Bremen U19 Carl Zeiss Jena U19 ( ) 9. The inscription is made in block letters against the background of Carl Zeiss Tessar photo lens schematic image. There is also an inscription Dienstglas D.F.6x30 VIII 18. Produced to military specifications, it is extremely sturdy. There are inscriptions Carl Zeiss Jena on the left prism cover. This is the civil version of the main military binocular 7×40 EDF (“Einheits-Doppelfernrohr”) of the East German army (“NVA, Nationale Volks – Armee”), made in 1985.
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Weight (measured, with eyepiece cover and strap): 936 g Range of individual diopter adjustment on each tube: +/- 7 dpt 18 x and later Delfort 18 x 50 models were manufactured from 1911 to 1930. A few words about this model and its origins and evolutions.
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Usable eye relief (measured from rim of eyecup): 15 mm C arl Zeiss Jena - DF 18 x 50 - 1916 External features Internal features Other information We are presenting another old binocular in our collection - D.F.