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First World War era Zeiss binoculars. An exchange of rubber for optical glass was proposed by Britain and Germany during the First World War. Optical glass was vital to the warfare of this era for binoculars and gunsights and rubber was needed for tyres and communications cables.
Ross patented a wide-angle lens design and Zeiss took this further to produce their EWA Protars. Before World War 1, Ross and Zeiss worked quite closely together, but at the outbreak of War the British Government put Ross in control of the newly opened Carl Zeiss binocular and optical factory in Mill Hill, London.
First workshop of Carl Zeiss in the center of Jena, c. 1847 Carl Zeiss Jena (1910) One of the Stasi's cameras with the special SO-3.5.1 (5/17mm) lens developed by Carl Zeiss, a so-called "needle eye lens", for shooting through keyholes or holes down to 1 mm in diameter 2 historical lenses of Carl Zeiss, Nr. 145077 and Nr. 145078, Tessar 1:4,5 F=5,5cm DRP 142294 (produced before 1910) Carl ...
The desirable amount of magnification depends upon the intended application, and in most binoculars is a permanent, non-adjustable feature of the device (zoom binoculars are the exception). Hand-held binoculars typically have magnifications ranging from 7× to 10×, so they will be less susceptible to the effects of shaking hands. [25]
The hottest brand of binoculars among the Trump watchers appears to be from a company called SkyGenius, which sells a high-powered $79.99 model with an "anti-slip grip" that is favored by bird ...
Average mortgage rates are edging down moderately week over week of Monday, January 6, 2024, though remain at elevated levels for benchmark 30-year and 15-year fixed terms, this despite three back ...
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