back focal distance

back focal distance
фокусное расстояние

English-Russian cartography dictionary. 2013.

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  • Flange focal distance — The flange focal distance (FFD) (also known as the flange to film distance, flange focal depth, flange back distance (FBD), or register, depending on the usage and source) of a lens mount for an interchangeable lens camera system is one of its… …   Wikipedia

  • Focal length — The focal length of an optical system is a measure of how strongly it converges (focuses) or diverges (diffuses) light. A system with a shorter focal length has greater optical power than one with a long focal length. Thin lens approximation For… …   Wikipedia

  • 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

  • back focus — Photog. the distance between the back surface of a lens and the focal plane when the lens is focused at infinity. [1895 1900] * * * …   Universalium

  • back focus — noun : the distance from the rear glass surface of a photographic lens to the focal plane when the lens is focused on a very distant object …   Useful english dictionary

  • Optimum HDTV viewing distance — is the distance that provides the viewer with the optimum immersive visual HDTV experience. Although opinions vary on the exact screen size to distance relationship, formal research and recommendations suggest closer is preferred to further[not… …   Wikipedia

  • Digital camera back — Kodak DCS420 digital camera, consisting of a modified Nikon N90s body (left) and a digital back (right) shown here separated …   Wikipedia

  • Lenticular optics — Making a lenticular product requires not only a stringency in work and substantial precision throughout the manufacturing process but also a sound knowledge of lenticular optics.This article summarizes some of the important calculations of… …   Wikipedia

  • Lenticular lens — A series of cylindrical lenses molded in a plastic substrate A lenticular lens is an array of magnifying lenses, designed so that when viewed from slightly different angles, different images are magnified.[1] The most common example is the lenses …   Wikipedia

  • Angénieux retrofocus — Infobox lens design scheme = Retrofocus.svg year = 1931 (cine) 1950 (stills) author = H. W. Lee of Taylor, Taylor and Hobson (1931) Pierre Angénieux (1950) elements = 1+(4..5) aperture = f/|2.5The Angénieux retrofocus photographic lens is a wide… …   Wikipedia

  • Machine vision glossary — Common definitions related to the machine vision field.Compiled for application on the Society of Manufacturing Engineers interest area.General related fields *Machine vision *Computer vision *Image processing *Signal processing NOTOC 0 9*1394.… …   Wikipedia


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