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1 фокальная плоскость
1) Engineering: camera focal plane (фото- или киносъёмочного аппарата), focal plane3) Cartography: focussing plane4) Makarov: focal plateУниверсальный русско-английский словарь > фокальная плоскость
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2 фокальная плоскость киносъёмочного аппарата
Makarov: camera focal planeУниверсальный русско-английский словарь > фокальная плоскость киносъёмочного аппарата
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3 фокальная плоскость фотоаппарата
Makarov: camera focal planeУниверсальный русско-английский словарь > фокальная плоскость фотоаппарата
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4 шторно-щелевой затвор
Русско-английский медицинский словарь > шторно-щелевой затвор
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5 Barnack, Oskar
SUBJECT AREA: Photography, film and optics[br]b. 1879 Berlin, Germanyd. January 1936 Wetzlar, Germany[br]German camera designer who conceived the first Leica camera and many subsequent models.[br]Oskar Barnack was an optical engineer, introspective and in poor health, when in 1910 he was invited through the good offices of his friend the mechanical engineer Emil Mechau, who worked for Ernst Leitz, to join the company at Wetzlar to work on research into microscope design. He was engaged after a week's trial, and on 2 January 1911 he was put in charge of microscope research. He was an enthusiastic photographer, but excursions with his large and heavy plate camera equipment taxed his strength. In 1912, Mechau was working on a revolutionary film projector design and needed film to test it. Barnack suggested that it was not necessary to buy an expensive commercial machine— why not make one? Leitz agreed, and Barnack constructed a 35 mm movie camera, which he used to cover events in and around Wetzlar.The exposure problems he encountered with the variable sensitivity of the cine film led him to consider the design of a still camera in which short lengths of film could be tested before shooting—a kind of exposure-meter camera. Dissatisfied with the poor picture quality of his first model, which took the standard cine frame of 18×24 mm, he built a new model in which the frame size was doubled to 36×24 mm. It used a simple focal-plane shutter adjustable to 1/500 of a second, and a Zeiss Milar lens of 42 mm focal length. This is what is now known as the UR-Leica. Using his new camera, 1/250 of the weight of his plate equipment, Barnack made many photographs around Wetzlar, giving postcard-sized prints of good quality.Ernst Leitz Junior was lent the camera for his trip in June 1914 to America, where he was urged to put it into production. Visiting George Eastman in Rochester, Leitz passed on Barnack's requests for film of finer grain and better quality. The First World War put an end to the chances of developing the design at that time. As Germany emerged from the postwar chaos, Leitz Junior, then in charge of the firm, took Barnack off microscope work to design prototypes for a commercial model. Leitz's Chief Optician, Max Berek, designed a new lens, the f3.5 Elmax, for the new camera. They settled on the name Leica, and the first production models went on show at the Leipzig Spring Fair in 1925. By the end of the year, 1,000 cameras had been shipped, despite costing about two months' good wages.The Leica camera established 35 mm still photography as a practical proposition, and film manufacturers began to create the special fine-grain films that Barnack had longed for. He continued to improve the design, and a succession of new Leica models appeared with new features, such as interchangeable lenses, coupled range-finders, 250 exposures. By the time of his sudden death in 1936, Barnack's life's work had forever transformed the nature of photography.[br]Further ReadingJ.Borgé and G.Borgé, 1977, Prestige de la, photographie.BC -
6 видеокамера с расположенной в фокальной плоскости матрицей чувствительных элементов
Security: focal plane array cameraУниверсальный русско-английский словарь > видеокамера с расположенной в фокальной плоскости матрицей чувствительных элементов
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7 затвор
shutterзатвор Керрасм. электрооптический затворвращающийся затворrotating shutterфотозатворcamera shutterцентральный затворcentral shutterшторный затвор1.curtain shutter 2.focal-plane shutterэлектрооптический затвор1.electrooptical shutter 2.optical lever
См. также в других словарях:
Focal-plane shutter — In camera design, a focal plane shutter is a type of photographic shutter that is positioned immediately in front of the focal plane of the camera, that is, right in front of the photographic film or image sensor. AdvantagesOne of the main… … Wikipedia
focal-plane shutter — noun : a camera shutter used chiefly for instantaneous exposures in which a slit in an opaque curtain is passed directly across and in front of the film near the focal plane, the width of the slit and the speed of its movement determining the… … Useful english dictionary
focal plane — In photography, an image line at right angle to the optical axis passing through the focal point. This forms the plane of sharp focus when a camera is set on infinity. Also see aperture, camera, focal length, and f/stop … Glossary of Art Terms
focal plane — /ˈfoʊkəl pleɪn/ (say fohkuhl playn) noun 1. the plane normal to the principal axis of a lens (or system of lenses) or a mirror, which passes through the focal point. 2. the plane in which light rays from an external object are focused in a camera …
focal-plane shutter — /foh keuhl playn /, Photog. a camera shutter situated directly in front of the film. Cf. curtain shutter. [1900 05] * * * … Universalium
focal-plane shutter — An opaque curtain containing a slit that moves directly across in front of the film in a camera and allows image forming light to strike the film … Forensic science glossary
focal plane shutter — noun a camera shutter, consisting of a system of sliding curtains, which is situated as close to the plate or film as possible …
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camera calibration — The determination of the calibrated focal length, the location of the principal point with respect to the fiducial marks and the lens distortion effective in the focal plane of the camera referred to the particular calibrated focal length … Military dictionary