photographic cameras
21motion-picture camera — also called Movie Camera, any of various complex photographic cameras that are designed to record a succession of images on a reel of film that is repositioned after each exposure. Commonly, exposures are made at the rate of 24 or 30… …
22Middle gray — 50% lightness in Lab color space In photography, painting, and other visual arts, middle gray or middle grey is a tone that is perceptually about half way between black and white on a lightness scale;[1] in photography, it is typically defined as …
23Autofocus assist beam — An Autofocus assist beam or AF assist beam is a lamp (usually red) which is incorporated into photographic cameras and flash units. This beam usually projects a regular pattern on to the subject which is recognized by the camera s AF system and… …
24Compound shutter — The Compound shutter is a mechanical leaf shutter for photographic cameras introduced in the late 19th century, usually used between lens components. A typical Compound shutter may have settings for T (Time), B (Bulb), and times from 1 second… …
25Dobrich Air Base — 26th Reconnaissance Air Base Dobrich (Bulgarian: 26та Разузнавателна авиобаза Добрич) is a former Bulgarian military installation near the City of Dobrich in the northeastern part of the country. It was of significant importance for the nation s… …
26Danish art — Christen Købke, View of Lake Sortedam, 1838. The Danish flag is frequently seen in paintings of this period …
27Phototheodolite — Pho to*the*od o*lite, n. An arrangement of two photographic cameras, the plates of which may be brought into exactly the same plane, used in surveying and map making. From the differences between two pictures taken at the same moment,… …
28East Germany — GDR redirects here. For other uses, see GDR (disambiguation). This article is about the country that existed from 1949 to 1990. For the historical eastern provinces, see Former eastern territories of Germany. For the modern east of Germany, see… …
29Manuel Piñeiro — Losada (Matanzas, Cuba, March 14, 1933 Havana, March 11, 1998), known as Barba Roja (Spanish: red beard ),[1] was a Cuban political and military figure, a leading character of the Cuban Revolution, as the first head of Fidel Castro s security… …
30Kiev Arsenal factory — ( ru. Завод Арсенал , Zavod Arsenal ) is one of the oldest and most famous industrial factories of the Ukrainian capital Kiev.Infobox Company name = Zavod Arsenal type = State owned company genre = foundation = post WWII period founder = Soviet… …
