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Binoculars or field glasses are two refracting telescopes mounted side-by-side and aligned to point in the same direction, allowing the viewer to use both eyes (binocular vision) when viewing distant objects. Most binoculars are sized to be held using both hands, although sizes vary widely from opera glasses to large pedestal-mounted military ...
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Principle of binocular vision with horopter shown. In biology, binocular vision is a type of vision in which an animal has two eyes capable of facing the same direction to perceive a single three-dimensional image of its surroundings. Binocular vision does not typically refer to vision where an animal has eyes on opposite sides of its head and ...
Asahiflex I with viewfinder closed. Cameras using the M37 lens mount. Ashiflex I (1952–1953); Asahiflex Ia (1953–1954) — also sold as the Tower 23; Asahiflex IIb (1954–1957) — also sold as the Tower 23
Category for binoculars, the optical devices, often found in birdwatching. Pages in category "Binoculars" The following 7 pages are in this category, out of 7 total. ...
In this image, the bottom left and right corners of the prism are not needed and have been cut off to reduce weight. Binoculars diagram showing an Abbe–Koenig prism. An Abbe–Koenig prism is a type of reflecting prism, used to invert an image (rotate it by 180°).
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