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Praktiflex
'' Kamera-Werkstätten Guthe & Thorsch'' (K.W.) was established 1919 in Dresden by Paul Guthe and Benno Thorsch, starting out manufacturing the ''Patent Etui'' plate camera. Ten years later came the roll film TLR ''Pilot Reflex'' and in 1936, the 6×6 SLR ''Pilot'' range. By that time, Benno Thorsch, the surviving partner from 1919, decided to immigrate to the United States and arranged with the US citizen Charles Noble to swap enterprises. Noble came to Germany and moved the factory to Niedersedlitz on the outskirts of Dresden, while Benno Thorsch in Detroit ran the acquired photo finishing business that was one of the largest in the USA.John H. Noble The new ''Kamera-Werkstätten AG, Niedersedlitz'' prospered, and in 1939 launched the 35mm SLR ''Praktiflex'' camera. The concept proved successful, and through continuous development, the ''Praktica'' name became one of the most popular 35mm SLR brands for several decades, beginning in the 1950s. The Camera The Praktifle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kamera-Werkstätten
Kamera-Werkstätten Guthe & Thorsch was a photographic equipment manufacturer based in Dresden. Kamera-Werkstätten Guthe & Thorsch By the beginning of the twentieth century the photographic industry prospered using new manufacturing methods, building smaller, lighter and more reliable equipment, and using better materials like aluminium and steel rather than wood, brass and leather. After World War I, the camera industry in Dresden surely had the most specialized workforce in that field, comprising several respected brands. It was at this time the Kamera-Werkstätten, K.W. was established in Dresden, Germany. Kamera-Werkstätten Guthe & Thorsch, K.W. for short, was established in 1919 in Dresden, by Paul Guthe and Benno Thorsch to manufacture cameras and associated products. The first was the ''Patent Etui 6×9'' plate camera previously designed by Guthe. The 3×4 TLR ''Pilot Reflex 3×4'' medium format roll-film camera range began in 1931, which by 1935 evolved into the 6×6 120 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Praktica
Praktica was a brand of camera manufactured by Pentacon in Dresden in eastern Germany, within the GDR between 1949 and the German reunification German reunification () was the process of re-establishing Germany as a single sovereign state, which began on 9 November 1989 and culminated on 3 October 1990 with the dissolution of the East Germany, German Democratic Republic and the int ... in 1990. The firm Pentacon was divided in mainly two parts and sold after German reunification. Schneider Kreuznach and John H. Noble, Noble bought parts of it. Pentacon is a Dresden-based company in the optical and precision engineering industry, which was at times a major manufacturer of photo cameras. The name Pentacon is derived on the one hand from the Contax brand of the Dresden Zeiss Ikon Kamerawerke and Pentagon (Greek for pentagon), because a pentaprism for SLR cameras developed for the first time in Dresden has this shape in cross section. Today's PENTACON GmbH Foto- und Fei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lens Mount
A lens mount is an interface – mechanical and often also electrical – between a photographic camera body and a lens. It is a feature of camera systems where the System camera, body allows interchangeable lenses, most usually the rangefinder camera, single lens reflex type, single lens mirrorless type or any movie camera of 16 mm or higher film gauge, gauge. Lens mounts are also used to connect optical components in instrumentation that may not involve a camera, such as the modular components used in optical laboratory prototyping which join via C mount, C-mount or T-mount elements. Mount types A lens mount may be a screw-threaded type, a Bayonet#Linguistic impact, bayonet-type, or a breech-lock (friction lock) type. Modern still camera lens mounts are of the bayonet type, because the bayonet mechanism precisely aligns mechanical and electrical features between lens and body. Screw-threaded mounts are fragile and do not align the lens in a reliable rotational position, yet ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Zeiss
Carl Zeiss (; 11 September 1816 – 3 December 1888) was a German scientific instrument maker, optician and businessman. In 1846 he founded his workshop, which is still in business as Zeiss (company), Zeiss. Zeiss gathered a group of gifted practical and theoretical opticians and glass makers to reshape most aspects of optical instrument production. His collaboration with Ernst Abbe revolutionized optical theory and practical design of microscopes. Their quest to extend these advances brought Otto Schott into the enterprises to revolutionize optical glass manufacture. The firm of Carl Zeiss grew to one of the largest and most respected optical firms in the world. Birth and family Carl's father, Johann Gottfried August Zeiss (1785–1849) was born in Rastenberg, where his forefathers had worked as artisans for over 100 years. August moved with his parents to Buttstädt, a small regional capital north of Weimar, where he married Johanna Antoinette Friederike Schmith (1786–18 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anastigmat
An anastigmat or anastigmatic lens is a photographic lens completely corrected for the three main optical aberrations: spherical aberration, coma (optics), coma, and Astigmatism (optical systems), astigmatism. Early lenses often included the word ''Anastigmat'' in their name to advertise this new feature (''Doppel-Anastigmat'', ''Voigtländer Anastigmat Skopar'', etc.). History Early designs The first ''Anastigmat'' was designed by Paul Rudolph (physicist), Paul Rudolph for the German firm Carl Zeiss AG in 1890 and marketed as the ''Protar''; it consisted of four elements in two groups, as an asymmetric arrangement of two cemented achromatic lens doublets and was improved to a five-element, two-group design in 1891, substituting a cemented triplet for the rear group. In 1892, the Swiss mathematician Emil von Höegh designed the ''Dagor'' (aka ''Double Anastigmatic Goerz'') for Goerz (company), Goerz, a symmetric lens with six elements in two groups, made of two cemented triple ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Schneider-Kreuznach
Joseph Schneider Optische Werke GmbH (commonly referred to as Schneider) is 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 devices and the BlackBerry Priv. It also supplied the lenses for the Kodak Regent camera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Standard Lens
In photography and cinematography, a normal lens is a lens that reproduces a field of view that appears "natural" to a human observer. In contrast, depth compression and expansion with shorter or longer focal lengths introduces noticeable, and sometimes disturbing, distortion. Mimicking human vision Photographic technology employs different physical methods from the human eye in order to capture images. Thus, manufacturing optics which produce images that appear natural to human vision is problematic. The eye has a nominal focal length of approximately 17 mm, but it varies with accommodation. The nature of human binocular vision, which uses two lenses instead of a single one, and post-processing by the cortex is very different from the process of making and rendering a photograph, video or film, and then looking at those. The structure of the human eye has a concave retina, rather than a flat sensor. This produces effects observed by Abraham Bosse who, in his 1665 illust ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Contax
Contax (stylised as CONTAX in the Yashica/Kyocera era) began as a German camera model in the Zeiss Ikon line in 1932, and later became a brand name. The early cameras were among the finest in the world, typically featuring high quality Carl Zeiss AG, Zeiss interchangeable Photographic lens, lenses. The final products under the Contax name were a line of 135 film, 35 mm, medium format, and digital cameras engineered and manufactured by Japanese multinational Kyocera, and featuring modern Zeiss optics. In 2005, Kyocera announced that it would no longer produce Contax cameras. The rights to the brand are currently part of Carl Zeiss AG, but no Contax cameras are currently in production, and the brand is considered dormant. Historical overview While the firm of Ernst Leitz of Wetzlar established the 24 mm × 36 mm negative format on perforated 35 mm movie film as a viable photographic system, Zeiss Ikon of Dresden decided to produce a competitor designed to b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Script (typefaces)
Script typefaces are based on the varied and often fluid stroke created by handwriting. They are generally used for display or trade printing, rather than for extended body text in the Latin alphabet. Some Greek alphabet typefaces, especially historically, have been a closer simulation of handwriting. Styles Script typefaces are organized into highly regular formal types similar to cursive writing and looser, more casual scripts. Formal scripts A majority of formal scripts are based upon the letterforms of seventeenth and eighteenth century writing-masters like George Bickham, George Shelley and Charles Snell. The letters in their original form are generated by a quill or metal nib of a pen. Both are able to create fine and thick strokes. Typefaces based upon their style of writing appear late in the eighteenth century and early nineteenth century. Contemporary revivals of formal script faces can be seen in Kuenstler Script and Matthew Carter's typeface Snell Roundhand. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sans-serif
In typography and lettering, a sans-serif, sans serif (), gothic, or simply sans letterform is one that does not have extending features called "serifs" at the end of strokes. Sans-serif typefaces tend to have less stroke width variation than serif typefaces. They are often used to convey simplicity and Modern typography, modernity or minimalism. For the purposes of type classification, sans-serif designs are usually divided into these major groups: , , , , and . Sans-serif typefaces have become the most prevalent for display of text on computer screens. On lower-resolution digital displays, fine details like serifs may disappear or appear too large. The term comes from the French word , meaning "without" and "serif" of uncertain origin, possibly from the Dutch word meaning "line" or pen-stroke. In printed media, they are more commonly used for Display typeface, display use and less for body text. Before the term "sans-serif" became standard in English typography, a number of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Waist-level Finder
The waist-level finder (WLF), also called waist-level viewfinder (WLVF), is a type of viewfinder that can be used on twin lens and single lens reflex cameras. While it is typically found on older medium format cameras, some newer and/or 35 mm cameras have this type of finder (perhaps as an option). In the reflex camera, the light from the lens is projected onto a focusing screen. The waist-level finder makes this screen viewable from above, where the image is seen upright but reversed left-to-right. This allows the camera user to determine the target area while holding the camera below eye level. The eye-level finder is an evolution of the waist-level finder, using a roof pentaprism or pentamirror to correct the image while making it viewable through an eyepiece at the rear of the camera. Some digital cameras have an articulating screen or a swivel lens, this allows the screen to be angled to make it viewable at waist-level. With live preview the screen can be used as a view ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
