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1 относительное отверстие объектива
1) Engineering: lens aperture2) Cinema: lens speed3) Polygraphy: lens opening, speed, useful aperture4) Cartography: ratio of aperture, ratio of lens aperture, relative aperture5) Makarov: object glass aperture, objective glass apertureУниверсальный русско-английский словарь > относительное отверстие объектива
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2 светосила
optical efficiency, light-gathering power, ( объектива) aperture ratio, speed* * *светоси́ла ж.
relative aperture, aperture ratioсветоси́ла объекти́ва кфт. — lens aperture, lens speedсветоси́ла телеско́па — light-gathering power of the telescope* * * -
3 Широкоугольный телефото объектив
Security: High Aperture ratio zoom lensУниверсальный русско-английский словарь > Широкоугольный телефото объектив
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4 объектив с большой светосилой
Универсальный русско-английский словарь > объектив с большой светосилой
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5 светосильный объектив
1) Engineering: fast lens, high-speed lens (высоко), large aperture lens, large aperture optical system, large aperture ratio lens2) Metallurgy: high-aperture lens3) Advertising: speed lensУниверсальный русско-английский словарь > светосильный объектив
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6 отверстие
отверстие объективаlens openingдействующее относительное отверстиеfast focal ratioдействующее относительное отверстие системы КассегренаCassegrain focal ratioдействующее относительное отверстие системы первичного фокусаprimary focus ratioотносительное отверстие1.ratio aperture 2.relative apertureвходное отверстие телескопа1.telescope aperture 2.inlet openingцентральное отверстиеcentral hole (in main telescope mirror) -
7 объектив с большим относительным отверстием
Engineering: large aperture lens, large aperture ratio lensУниверсальный русско-английский словарь > объектив с большим относительным отверстием
См. также в других словарях:
Aperture — For other uses, see Aperture (disambiguation). f stops demonstrated on a lens … Wikipedia
Lens (optics) — For other uses, see Lens. A lens. Lenses can be used to focus light. A lens is an optical device with perfect or approximate axial symmetry which tra … Wikipedia
History of the single-lens reflex camera — The history of the single lens reflex camera predates the invention of photography in 1826/27 by one and a half centuries with the use of a reflex mirror in a camera obscura first described in 1676. Such SLR devices were popular as drawing aids… … Wikipedia
Single-lens reflex camera — The single lens reflex (SLR) camera uses an automatic moving mirror system which permits the photographer to see exactly what will be captured by the film or digital imaging system, as opposed to non SLR cameras where the view through the… … Wikipedia
Digital single-lens reflex camera — Nikon D700 full frame (FX) digital SLR camera … Wikipedia
Numerical aperture — The numerical aperture with respect to a point P depends on the half angle θ of the maximum cone of light that can enter or exit the lens. In optics, the numerical aperture (NA) of an optical system is a dimensionless number that characterizes… … Wikipedia
relative aperture — Optics. the ratio of the diameter of a lens, esp. a camera lens, to the focal length; the reciprocal of the f number or focal ratio of the lens. * * * ▪ optics the measure of the light gathering power of an optical system. It is expressed… … Universalium
Photographic lens — A photographic lens (also known as objective lens or photographic objective) is an optical lens or assembly of lenses used in conjunction with a camera body and mechanism to make images of objects either on photographic film or on other media… … Wikipedia
relative aperture — noun : a measure of the angle of the cone of light rays from an object that traverse an optical system; specifically : the effective aperture of a camera lens expressed as a fraction of its focal length with the symbol f being used instead of 1… … Useful english dictionary
Zoom lens — Nikkor 28 200 mm zoom lens, extended to 200 mm at left and collapsed to 28 mm focal length at right A zoom lens is a mechanical assembly of lens elements for which the focal length (and thus angle of view) can be varied, as opposed to a fixed… … Wikipedia
Sigma 24mm f/1.8 EX DG lens — Infobox photographic lenses name = Sigma 24mm f/1.8 EX DG caption = maker = Sigma Corporation feat is = none feat usm = n/a feat sbf = n/a feat macro = Yes feat special = Very fast maximum aperture application = low light, landscape, macro,… … Wikipedia
