These German WWII 10X80 anti-aircraft (Flak) Binoculars were designed by Emil Busch for the Zeiss company. Busch was a pioneer of modern-day photography, the first to design and produce remarkable anastigmatic lenses – lenses that correct for spherical aberration. Zeiss Flak glass optics were used by the Second World War German military as an anti-aircraft rangefinder on land as well as on ships to track incoming aircraft. This type of anti-aircraft binocular was used atop German concrete towers or flak towers that were built around major cities like Berlin. These optical wonders come on a striking tripod mount.