- lens formula
1. формула (оптической силы) линзы
2. формула фокусного расстояния линзы
Большой англо-русский и русско-английский словарь. 2001.
lens formula
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lens formula — lęšio formulė statusas T sritis fizika atitikmenys: angl. lens formula vok. Linsenformel, f rus. формула линзы, f; формула оптической силы линзы, f pranc. formule de la lentille, f … Fizikos terminų žodynas
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
Lens clock — A lens clock is a mechanical dial caliper that is used to measure dioptric power of a lens. It is a specialized version of a spherometer. A lens clock measures the curvature of a surface, but gives the result in diopters, assuming the lens is… … Wikipedia
Double-Gauss lens — The double Gauss design with optical ray traces The double Gauss lens is a compound lens used mostly in camera lenses that reduces optical aberrations over a large focal plane. Contents 1 Design … Wikipedia
Prime lens — In film and photography, a prime lens is either a photographic lens whose focal length is fixed, as opposed to a zoom lens, or it is the primary lens in a combination lens system.Confusion can sometimes result due to the two meanings of the term… … Wikipedia
Zeiss formula — In photographic optics, the so called Zeiss formula is sometimes said to be used for computing a circle of confusion (CoC) criterion for depth of field (DOF) calculations. The formula is c = d/1730, where d is the diagonal measure of a camera… … 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
Wide-angle lens — In photography and cinematography, a wide angle lens is a lens whose focal length is substantially shorter than the focal length of a normal lens for the image size produced by the camera, whether this is dictated by the dimensions of the image… … Wikipedia
Fisheye lens — In photography, a fisheye lens is a wide angle lens that takes in an extremely wide, hemispherical image. Originally developed for use in meteorology [Hill, R. 1924. A lens for whole sky photographs. Quarterly Journal of the Royal Meteorological… … Wikipedia
Sigma 30mm f/1.4 EX DC HSM lens — Infobox photographic lenses name = Sigma 30mm f/1.4 EX DC HSM maker = Sigma Corporation feat is = No feat usm = Yes (not available with Pentax and Sony mount) feat sbf = n feat macro = n application = interiors/portrait flength = 30 mm aperture … Wikipedia
Depth of field — The area within the depth of field appears sharp, while the areas in front of and beyond the depth of field appear blurry … Wikipedia
