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Rodenstock Photo Optics
Rodenstock Photo Optics traces its origins to a mechanical workshop founded in 1877 by Josef Rodenstock and his brother Michael in Würzburg, Germany. The company relocated to Munich by 1884 and became an important manufacturer of both corrective lenses for glasses and camera lenses by the early 1900s. These two lines began to diverge in the 1960s as the center of photographic lens manufacturing shifted to Japan; the ophthalmic business continued as Rodenstock GmbH while the remaining camera lens business was repositioned to serve the large format and industrial precision optics markets, then spun off in 1996 as Rodenstock Präzisionsoptik. Since then, the precision optics brand has been acquired in succession by LINOS Photonics (Göttingen, 2000), Qioptiq Group (Luxembourg, 2006), and Excelitas Technologies (2013). Photographic lenses produced by Rodenstock during and since the 20th century include the brands ''Ysarex'', ''Heligon'', ''Eurygon'', ''Rotelar'', ''Apo-Ronar'', ''Rod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rodenstock Large Format Lenses Austin Calhoon Photograph
Rodenstock may refer to: ;Companies * Rodenstock GmbH, a German manufacturer of ophthalmic lenses and frames. * Rodenstock Photo Optics, a photographic brand by Excelitas Technologies (formerly owned by LINOS Photonics, 2000–06, and Qioptiq Group, 2006–13) ;Individuals * Hardy Rodenstock (1941–2018), pseudonym for ''Meinhard Görke'', a German wine collector * Josef Rodenstock (1846–1932), German entrepreneur * Alexander Rodenstock (1883–1953), German entrepreneur and economic functionary * Rolf Rodenstock Rolf Rodenstock (1 July 1917 – 6 February 1997) was a German industrialist who was born and died in Munich. Rodenstock studied marketing and management graduating in 1944 with a degree as a Diplom-Kaufmann. In 1947 he became private lecturer. ... (1917–1997), German economist and economic functionary * Randolf Rodenstock (* 1948), German entrepreneur and economic functionary {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angle Of View
The angle of view is the decisive variable for the visual perception of the size or projection of the size of an object. Angle of view and perception of size The perceived size of an object depends on the size of the image projected onto the retina. The size of the image depends on the angle of vision. A near and a far object can appear the same size if their edges produce the same angle of vision. With an optical device such as glasses or binoculars, microscope and telescope the angle of vision can be widened so that the object appears larger, which is favourable for the resolving power of the eye (see visual angle). Angle of view in photography In photography, angle of view (AOV) describes the angular extent of a given scene that is imaged by a camera. It is used interchangeably with the more general term field of view. It is important to distinguish the angle of view from the angle of coverage, which describes the angle range that a lens can image. Typically the image ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tessar
The Tessar is a photographic lens design conceived by the German physicist Paul Rudolph in 1902 while he worked at the Zeiss optical company and patented by Zeiss in Germany; the lens type is usually known as the Zeiss Tessar. A Tessar comprises four elements in three groups, one positive crown glass element at the front, one negative flint glass element at the center and a negative plano-concave flint glass element cemented with a positive convex crown glass element at the rear. History Beginnings Despite common belief, the Tessar was not developed from the 1893 Cooke triplet design by replacing the rear element with a cemented achromatic doublet. Paul Rudolph designed the Anastigmat with two lenses cemented in 1890. Later, Rudolph thought that a narrow airgap in the form of a positive lens would correct the spherical aberration (as did HL Aldis in 1895) and that this device was much better than the lenses cemented. In addition, this allowed the photographers to hav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sonnar
The Zeiss Sonnar is a photographic lens originally designed by Dr. Ludwig Bertele in 1929 and patented by Zeiss Ikon.Deutsche Patent 530843, 1929-08-14 It was notable for its relatively light weight, simple design and fast aperture. The name "Sonnar" is derived from the German word " Sonne", meaning sun. It was originally a tradename owned by in for a Tessar-like lens. Sontheim's coat of arms includes a symbol of the sun. Nettel merged with August Nagel's in 1919. The resulting AG in Stuttgart was one of the companies that merged to form the Zeiss Ikon AG in 1926. When the modern Zeiss lens had been designed by Bertele, Zeiss re-used the old Nettel tradename in order to build on the sun association to emphasize on the lens' large aperture (), which was much greater than many other lenses available at the time. The first Zeiss production Sonnar was a 1:2.0 50 mm lens with six elements in three groups created for the Zeiss Contax I rangefinder camera in 1932. In 1931 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angénieux Retrofocus
The Angénieux retrofocus photographic lens is a wide-angle lens design that uses an inverted telephoto configuration. The popularity of this lens design made the name retrofocus synonymous with this type of lens. The Angénieux retrofocus for still cameras was introduced in France in 1950 by Pierre Angénieux. Inverted telephoto concept The telephoto lens configuration combines positive and negative lens groups with the positive at the front, so as to reduce the back focal distance of the lens (the distance between the back of the lens and the image plane) to a figure shorter than the focal length. This is for practical, not optical reasons, because it allows telephoto lenses to be made shorter and less cumbersome. The inverted telephoto configuration does the reverse, employing one or more negative lens groups at the front to increase the back focal distance of the lens – possibly to a figure greater than the focal length – in order to allow for additional optical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iloca
The Iloca was a 35mm rangefinder camera produced from 1952 to 1959 by Wilhelm Witt of Hamburg. Models designated "Rapid" had a rapid winding lever. The Iloca was the first 35mm camera with an integrated electric motor wind. It was very expensive and sold poorly in Europe, but was much more successful in the USA where it was sold as the Graphic 35 Electric. The company was acquired by Agfa in 1960, and the Iloca Electric was re-introduced as the Agfa Selecta m, with a fixed f2.8 Solinar lens in place of the interchangeable bayonet mount. Iloca cameras * Iloca IIa * Iloca Stereo II - 1951 * Iloca Rapid (A) - 1952 * Iloca Rapid B / Sears Tower 51 - 1954 * Iloca Rapid I - 1956 * Iloca Rapid IL / MPP Iloca - 1956 * Iloca Rapid IIL / Sears Tower 52 / Argus V-100 - 1956 * Iloca Rapid III - 1959 * Iloca Automatic * Iloca Electric The Iloca was a 35mm rangefinder camera produced from 1952 to 1959 by Wilhelm Witt of Hamburg. Models designated "Rapid" had a rapid winding lever. The Il ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Braun Camera-Werk
Carl Braun Camera-Werk of Nuremberg, Germany, or Braun, as it was more commonly called, was founded as an optical production house. It is best known for its 35mm film cameras named Paxette, and for slide projectors named Paximat. History The company was founded in 1915 under name of ''Karl Braun KG, Fabrik optischer Geräte und Metallwaren'' for the fabrication of optical appliances and metalware. In 1948, the company began producing box film cameras, in rollfilm and 35mm format. It changed its name to ''Carl Braun Camera-Werke''. Its best known model was the Paxette series of 35mm rangefinder cameras. Most of the company's cameras were consumer-level models, though the company did briefly produce several more advanced 35mm rangefinder designs as well as an interesting 35mm single-lens reflex camera line with leaf shutters, the Paxette Reflex (Automatic?)/AMC M335 Reflex. The most advanced of Braun's rangefinders and SLRs had interchangeable lenses. Braun ceased making cameras i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kodak
The Eastman Kodak Company (referred to simply as Kodak ) is an American public company that produces various products related to its historic basis in analogue photography. The company is headquartered in Rochester, New York, and is incorporated in New Jersey. Kodak provides packaging, functional printing, graphic communications, and professional services for businesses around the world. Its main business segments are Print Systems, Enterprise Inkjet Systems, Micro 3D Printing and Packaging, Software and Solutions, and Consumer and Film. It is best known for photographic film products. Kodak was founded by George Eastman and Henry A. Strong on May 23, 1892. During most of the 20th century, Kodak held a dominant position in photographic film. The company's ubiquity was such that its " Kodak moment" tagline entered the common lexicon to describe a personal event that deserved to be recorded for posterity. Kodak began to struggle financially in the late 1990s, as a result of th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schneider Kreuznach
Schneider Kreuznach () is the abbreviated name of the company Jos. Schneider Optische Werke GmbH, which is sometimes also simply referred to as Schneider. They are a manufacturer of industrial and photographic optics. The company was founded on 18 January 1913 by Joseph Schneider as Optische Anstalt Jos. Schneider & Co. at Bad Kreuznach in Germany. The company changed its name to Jos. Schneider & Co., Optische Werke, Kreuznach in 1922, and to the current Jos. Schneider Optische Werke GmbH in 1998. In 2001, Schneider received an Oscar for Technical Achievement for their Super-Cinelux motion picture lenses. It is best known as manufacturers of large format lenses for view cameras, enlarger lenses, and photographic loupes. It also makes a limited amount of small- and medium-format lenses, and has at various times manufactured eyeglasses and camera rangefinders, as well as being an OEM lens maker for Kodak and Samsung digital cameras. It has supplied the lenses for various LG devi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kodak Retina
Retina was the brand-name of a long-running series of German-built Kodak 35mm cameras, produced from 1934 until 1969. Kodak Retina cameras were manufactured in Stuttgart-Wangen by the Kodak AG Dr. Nagel Werk which Kodak had acquired in December 1931. The Retina line included a variety of folding and non-folding models, including the Retina Reflex single lens reflex camera. Retina cameras were noted for their compact size, high quality, and low cost compared to competitors. These cameras retain a strong following today, of both photographers and collectors. Kodak AG also offered a companion line of less-expensive Retinette cameras, with similar looks and function. History August Nagel was a prolific camera designer and entrepreneur who was one of the founders of Zeiss Ikon, when he merged his company, Contessa-Nettel AG, with Zeiss and others to form that group in 1919. As well as being an owner he was an active designer of fine Zeiss cameras including miniatures. He lef ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Retina Da 080307
The retina (from la, rete "net") is the innermost, light-sensitive layer of tissue of the eye of most vertebrates and some molluscs. The optics of the eye create a focused two-dimensional image of the visual world on the retina, which then processes that image within the retina and sends nerve impulses along the optic nerve to the visual cortex to create visual perception. The retina serves a function which is in many ways analogous to that of the film or image sensor in a camera. The neural retina consists of several layers of neurons interconnected by synapses and is supported by an outer layer of pigmented epithelial cells. The primary light-sensing cells in the retina are the photoreceptor cells, which are of two types: rods and cones. Rods function mainly in dim light and provide monochromatic vision. Cones function in well-lit conditions and are responsible for the perception of colour through the use of a range of opsins, as well as high-acuity vision used fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rodenstock Imagon
The Rodenstock Imagon is an achromat doublet photographic lens design uncorrected for spherical aberration used together with diffusion discs ("sink strainers") called sieve aperture ( in German). The lens is one of the classic professional soft-focus "portrait lenses". In a joint effort with the pioneering photographer Heinrich Kühn, who, as a pictorialist, was artistically seeking for "romantic softness without sugariness, blurring without a woolly effect" in images and had been experimenting with binocular lenses and soft filters and rasters in the 1920s already, the lens was technically designed by , founder of the optical company in Munich, Germany. The resulting lens was marketed as Anachromat Kühn. Later in 1928, the lens became the Tiefenbildner-Imagon, which was introduced by Rodenstock in 1930/1931 and produced up into the 1990s. The unusual term ' is a German composition, which can be best translated as " depth-of-field creator, modulator or painter" in an arti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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