back-focal distance
101Contax — II A historic camera: the East Germany Contax S of 1949 – …
102galaxy — /gal euhk see/, n., pl. galaxies. 1. Astron. a. a large system of stars held together by mutual gravitation and isolated from similar systems by vast regions of space. b. (usually cap.) See Milky Way. 2. any large and brilliant or impressive… …
103Optical microscope — Microscope Uses Small sample observation Notable experiments Discovery of cells Inventor Hans Lippershey Zacharias Jans …
104Surround sound — Surround sound, using multichannel audio, encompasses a range of techniques for enriching (expanding and deepening) the sound reproduction quality, of an audio source, with additional audio channels reproduced via additional, discrete speakers.… …
105HISTORY — For Prehistory see archaeology ; for Biblical and Second Temple periods, see history . Destruction of the Second Temple until the Arab Conquest (70–640 C.E.) THE EFFECTS OF THE WAR OF 66–70 C.E. The Jewish war against the Romans, which lasted… …
106SYNAGOGUE — This article is arranged according to the following outline. origins and history until the first century first century c.e. middle ages modern period …
107Color temperature — The CIE 1931 x,y chromaticity space, also showing the chromaticities of black body light sources of various temperatures (Planckian locus), and lines of constant correlated color temperature. Color temperature is a characteristic of visible light …
108Film speed — is the measure of a photographic film s sensitivity to light, determined by sensitometry and measured on various numerical scales, the most recent being the ISO system. A closely related ISO system is used to measure the sensitivity of digital… …
109Perspective distortion (photography) — foreshortened. At very small values (not shown, as the camera would lie inside the object), light rays are nearly perpendicular, resulting in lines that normally appear perpendicular seeming to converge upon a single point.In photography and… …
110Autofocus — For the film of the same name, see Auto Focus. An autofocus (or AF) optical system uses a sensor, a control system and a motor to focus fully automatic or on a manually selected point or area. An electronic rangefinder has a display instead of… …
