These are World War II German fixed focus binoculars. They are manufactured with Carl Zeiss lenses. The focus adjusting screws set into optical housing.
Blc (German Wartime code, Carl Zeiss Jena). Field of View: 7.3 deg = 128 m/1,000 m; APFOV 51 deg.Exit Pupil: 7.14 mm. During this period, around 6000 were made.
This is a great example of these binoculars, and in a very good condition despite their age, and compared to lots of others on the market. Despite dealers trying to get a good deal by stating there are a surplus of these, the ones that appear are often more tarnished, worn and missing pieces than this pair listed. I've searched and seen them, and indeed very few online.
The lenses are collimated, and there is no haze or misting through the eyepieces or objective lenses. The rubber seals are in good condition despite the age.
On the eyepieces, two sections have been removed around the focus screws, and one long bar has been changed on the eyepiece attachment. There is a mark on one of the Objective lenses, which I have circled in one of the pictures. This is only a surface mark and doesn't affect the quality of the focal viewing. All these details can be seen on the photographs.I do have around 40 photographs in total, so should you require to see these, please get in touch. Im willing to post worldwide. These are fixed focus, designed for maximum sealing and weatherproofing. The primary user of the binocular could, however, set the focus to his eyesight by removing the rubber armor from the prism plates to access a large focus screw at the base of each eyepiece which could be adjusted using a screwdriver.
Importantly, when this focus screw is turned, the eye lens remains stationary and no external components of the binocular move focusing being accomplished solely by the internal movement of lenses inside the eyepiece. In this way, the oculars are well-sealed against moisture. Comments have been made that years after the war many U-Boot 7X50s were found to be perfectly clean inside requiring no servicing.
The U-Boat 7X50 was manufactured from 1941 1945 specifically for use aboard submarines and. Was officially designated as the Doppelfernrohr 7X50 für U-Boote U-Bootglas 7X50. Most were made by Zeiss but a smaller number were also manufactured by Emil Busch Rathenow (wartime code cxn). The second was made probably only in 1943 and had rubber armour without fold.The first type is the rarest many being lost during service use, and the third type is the most common. Manufacture of all types was probably between 16,540 to 25,000.
The serial numbering of these binoculars. Is unusual and not consistent. Although the numbering of the first type runs from about 2108901 to. 2194600, in 1943 a low serial number range for U-Boat 7X50 and other type binoculars was begun while.Many other binoculars continued to be made in the high number range. Thus, in 1943 the numbering of U.
Boat binoculars began at 38300 to end at approximately 69150 in 1945. Hans Seegers book, Military Binoculars and Telescopes for Land, Air and Sea Service (3rd Edition 2005). The item "WWII U-Boat Binoculars - Carl Zeiss 7x50" is in sale since Sunday, September 8, 2019. This item is in the category "Collectables\Militaria\World War II (1939-1945)\Other World War II Militaria".The seller is "mrmagicwizard" and is located in Glasgow. This item can be shipped to United Kingdom.