|
Solar Camera
The solar camera, or solar enlarger, is an ancestor of the darkroom enlarger, and was used in the mid-to-late 19th century to make photographic enlargements from negatives. Other uses The name ''Solar'' was registered as the brand of an unrelated electrically-illuminated darkroom enlarger marketed post-WW2 in the United States by Burke & James Inc., Chicago. Description Early photographic materials were less light sensitive, and prints were made by simple superposition ("Contact prints"). The solar camera enlarger permitted photographers to make enlargements from glass negatives. However, exposures required for making such copies from negatives increase inversely with enlargement area. Photographers therefore employed the most powerful light source then available: the Sun. Solar cameras were at first freestanding, a design based on picture-taking cameras but with the relative position of negative and lens reversed so that sunlight shone through the glass plate to be project ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Darkroom
A darkroom is used to process photographic film, to make prints and to carry out other associated tasks. It is a room that can be made completely dark to allow the processing of the light-sensitive photographic materials, including film and photographic paper. Various equipment is used in the darkroom, including an enlarger, baths containing chemicals, and running water. Darkrooms have been used since the inception of photography in the early 19th century. Darkrooms have many various manifestations, from the elaborate space used by Ansel Adams to a retooled ambulance wagon used by Timothy H. O'Sullivan. From the initial development of the film to the creation of prints, the darkroom process allows complete control over the medium. Due to the popularity of color photography and complexity of processing color film (''see C-41 process'') and printing color photographs and also to the rise, first of instant photography technology and later digital photography, darkrooms are dec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antoine Claudet
Ada Byron's daguerreotype by Claudet, . Antoine François Jean Claudet (August 18, 1797 – December 27, 1867) was a French photographer and artist active in London who produced daguerreotypes. Early Years Claudet was born in La Croix-Rousse, France, the son of Claude Claudet, a cloth merchant and Etiennette Julie Montagnat. Career Early in his career Claudet headed a glass factory at Choisy-le-Roi, Paris, together with Georges Bontemps, and moved to England to promote the factory with a shop in High Holborn, London. Having acquired a share in L. J. M. Daguerre's invention, he became one of England's first commercial photographers using the daguerreotype process for portraiture, improving the sensitizing process by using chlorine (instead of bromine) in addition to iodine, thus gaining greater rapidity of action. He invented the red darkroom safelight, and it was he who suggested the idea of using a series of photographs to create the illusion of movement. The idea of us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Désiré Van Monckhoven
Désiré Charles Emanuel van Monckhoven (1834–1882) was a Belgian chemist, physicist, and photographic researcher. He was also an inventor and author.Day, Lance ''et al.'' (1996) ''Biographical Dictionary of the History of Technology,'' p. 495./ref> Works He wrote several of the earliest books on photography and photographic optics. His original French works were later translated to English and other languages. He invented or developed an enlarger (1864),Hannavy, John. (2008) ''Encyclopedia of Nineteenth-century Photography,'' p. 1438./ref> a dry collodion process (1871), improvements of the carbon print process (1875–80), and improved silver-bromide gelatine emulsions. T3- d126 - Fig. 78. — Appareil d’agrandissement de M. Monckhoven.png, Enlarger T3- d127 - Fig. 79. — Effet de l’appareil de M. Monckhoven.png Selected work * 1857 – ''Méthodes simplifiées de photographie sur papier'' (Simplified methods of photography on paper). Paris : Marion. * 1858 – ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Léon Foucault
Jean Bernard Léon Foucault (, ; ; 18 September 1819 – 11 February 1868) was a French physicist best known for his demonstration of the Foucault pendulum, a device demonstrating the effect of Earth's rotation. He also made an early measurement of the speed of light, discovered eddy currents, and is credited with naming the gyroscope. Early years The son of a publisher, Foucault was born in Paris on 18 September 1819. After an education received chiefly at home, he studied medicine, which he abandoned in favour of physics due to a blood phobia. He first directed his attention to the improvement of Louis Daguerre's photographic processes. For three years he was experimental assistant to Alfred Donné (1801–1878) in his course of lectures on microscopic anatomy. With Hippolyte Fizeau he carried out a series of investigations on the intensity of the light of the sun, as compared with that of carbon in the arc lamp, and of lime in the flame of the oxyhydrogen blowpipe; on the int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heliostat
A heliostat (from ''helios'', the Greek word for ''sun'', and ''stat'', as in stationary) is a device that includes a mirror, usually a plane mirror, which turns so as to keep reflecting sunlight toward a predetermined target, compensating for the sun's apparent motions in the sky. The target may be a physical object, distant from the heliostat, or a direction in space. To do this, the reflective surface of the mirror is kept perpendicular to the bisector of the angle between the directions of the sun and the target as seen from the mirror. In almost every case, the target is stationary relative to the heliostat, so the light is reflected in a fixed direction. According to contemporary sources the heliostata, as it was called at first, was invented by Willem 's Gravesande (1688–1742). Other contenders are Giovanni Alfonso Borelli (1608–1679) and Daniel Gabriel Fahrenheit (1686–1736). A Heliostat designed by George Johnstone Storey is in the Science Museum Group collec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
André-Adolphe-Eugène Disdéri
André Adolphe-Eugène Disdéri (; 28 March 1819 – 4 October 1889) was a French photographer who started his photographic career as a daguerreotypist but gained greater fame for patenting his version of the ''carte de visite,'' a small photographic image which was mounted on a card. Disdéri, a brilliant showman, made this system of mass-production portraiture world famous. Early life Disdéri began his working life in a number of occupations, while also studying art. He started as a daguerreotypist in Brest in 1848 or 1849 but in December 1852 or January 1853 he moved to Nîmes. There he received assistance from Édouard Boyer and Joseph Jean Pierre Laurent with his photography-related chemistry experiments. After a year in Nîmes he moved to Paris, enabling easy access to people who would be the subjects of his ''cartes de visite.'' Disdéri and the ''carte de visite'' Photographs had previously served as calling cards,Wilder. but Disdéri's invention of the paper ''cart ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Société Française De Photographie
The Société française de photographie (SFP) is an association, founded on 15 November 1854, devoted to the history of photography. It has a large collection of photographs and old cameras. Among the founding members were Olympe Aguado, Hippolyte Bayard, Alexandre Edmond Becquerel, Eugène Durieu, Edmond Fierlants, Jean-Baptiste Louis Gros, Gustave Le Gray and Henri Victor Regnault. Henri Victor Regnault was the first president. History The Société française de photographie, founded on 15 November 1854, was based on the short-lived Société héliographique (1851) but differed in that it was less elitist and more forward-looking. Some accounts mistakenly link the two organizations more closely, referring simply to a change in the name with a view to giving the SFP the status of the world's oldest photography organization. A careful analysis of the Société héliographique describes in detail how the initial enthusiasm for the organization quickly disappeared resulting in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French Academy Of Sciences
The French Academy of Sciences (French: ''Académie des sciences'') is a learned society, founded in 1666 by Louis XIV of France, Louis XIV at the suggestion of Jean-Baptiste Colbert, to encourage and protect the spirit of French Scientific method, scientific research. It was at the forefront of scientific developments in Europe in the 17th and 18th centuries, and is one of the earliest Academy of Sciences, Academies of Sciences. Currently headed by Patrick Flandrin (President of the Academy), it is one of the five Academies of the Institut de France. History The Academy of Sciences traces its origin to Colbert's plan to create a general academy. He chose a small group of scholars who met on 22 December 1666 in the King's library, near the present-day Bibliothèque nationale de France, Bibliothèque Nationals, and thereafter held twice-weekly working meetings there in the two rooms assigned to the group. The first 30 years of the Academy's existence were relatively informal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aachen
Aachen ( ; ; Aachen dialect: ''Oche'' ; French and traditional English: Aix-la-Chapelle; or ''Aquisgranum''; nl, Aken ; Polish: Akwizgran) is, with around 249,000 inhabitants, the 13th-largest city in North Rhine-Westphalia, and the 28th-largest city of Germany. It is the westernmost city in Germany, and borders Belgium and the Netherlands to the west, the triborder area. It is located between Maastricht (NL) and Liège (BE) in the west, and Bonn and Cologne in the east. The Wurm River flows through the city, and together with Mönchengladbach, Aachen is the only larger German city in the drainage basin of the Meuse. Aachen is the seat of the City Region Aachen (german: link=yes, Städteregion Aachen). Aachen developed from a Roman settlement and (bath complex), subsequently becoming the preferred medieval Imperial residence of Emperor Charlemagne of the Frankish Empire, and, from 936 to 1531, the place where 31 Holy Roman Emperors were crowned Kings of the Germans. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Morning Post
''The Morning Post'' was a conservative daily newspaper published in London from 1772 to 1937, when it was acquired by ''The Daily Telegraph''. History The paper was founded by John Bell. According to historian Robert Darnton, ''The Morning Post'' scandal sheet consisted of paragraph-long news snippets, much of it false. Its original editor, the Reverend Sir Henry Bate Dudley, earned himself nicknames such as "Reverend Bruiser" or "The Fighting Parson", and was soon replaced by an even more vitriolic editor, Reverend William Jackson, also known as "Dr. Viper". Originally a Whig paper, it was purchased by Daniel Stuart in 1795, who made it into a moderate Tory organ. A number of well-known writers contributed, including Samuel Taylor Coleridge, Charles Lamb, James Mackintosh, Robert Southey, and William Wordsworth. In the seven years of Stuart's proprietorship, the paper's circulation rose from 350 to over 4,000. From 1803 until his death in 1833, the owner and editor of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1862 International Exhibition
The International Exhibition of 1862, or Great London Exposition, was a world's fair. It was held from 1 May to 1 November 1862, beside the gardens of the Royal Horticultural Society, South Kensington, London, England, on a site that now houses museums including the Natural History Museum and the Science Museum. Organisation The exposition was sponsored by the Royal Society of Arts, Manufactures and Trade, and featured over 28,000 exhibitors from 36 countries, representing a wide range of industry, technology, and the arts. William Sterndale Bennett composed music for the opening ceremony. All told, it attracted about 6.1 million visitors. Receipts (£459,632) were slightly above cost (£458,842), leaving a total profit of £790. It was held in South Kensington, London, on a site now occupied by the Natural History Museum. The buildings, which occupied 21 acres, were designed by Captain Francis Fowke of the Royal Engineers, and built by Lucas Brothers and Sir John Kelk. They ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
