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The Micro Four Thirds system cameras and lenses perform automatic distortion correction using correction parameters that are stored in each lens's firmware, and are applied automatically by the camera and raw converter software. The optics of most of these lenses feature substantially more distortion than their counterparts in systems that do ...
Pentax is one of the few camera manufacturers still producing medium format cameras up to 1999. There are two offerings, one in the 6×7 format—the Pentax 67 II, and one in the 6×4.5 format—Pentax 645NII. Both use 120 or 220 roll film. These cameras build on the Pentax SLR design experience.
Canon Inc. ( Japanese: キヤノン株式会社; [note 1] Hepburn: Kyanon kabushiki gaisha) is a Japanese multinational corporation headquartered in Ōta, Tokyo, specializing in optical, imaging, and industrial products, such as lenses, cameras, medical equipment, scanners, printers, and semiconductor manufacturing equipment. [4]
Instead of the solid block of glass of the prism in pentaprism system, here 3 mirrors are used to perform the same task. This is cheaper and lighter, but generally produces a viewfinder image of lower quality and brightness. This optical device is often (more precisely) referred to as roof pentamirror because of the roof-like ridge.
Corrective lenses. A corrective lens is a lens worn on or before the eye. They are used to treat myopia, hypermetropia, astigmatism, and presbyopia .
Atmospheric correction is the process of removing the scattering and absorption effects of the atmosphere on the reflectance values of images taken by satellite or airborne sensors. [1] [2] Atmospheric effects in optical remote sensing are significant and complex, dramatically altering the spectral nature of the radiation reaching the remote ...
Canon made two fast lenses, the FL 50mm 1:1.4 and the FL 58mm 1:1.2, in order to compensate for the light loss. As the shutter curtain is permanently exposed to light without being protected by a moving mirror, a metal, rather than fabric curtain is used, which prevents the possibility of burning by being accidentally pointed at the sun, with ...
Binocular vision. 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 ...