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Vario-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] |
Zeiss Ikon
Carl Zeiss AG (), branded as ZEISS, is a German manufacturer of optical systems and optoelectronics, founded in Jena, Germany in 1846 by optician Carl Zeiss. Together with Ernst Abbe (joined 1866) and Otto Schott (joined 1884) he laid the foundation for today's multi-national company. The current company emerged from a reunification of Carl Zeiss companies in East and West Germany with a consolidation phase in the 1990s. ZEISS is active in four business segments with approximately equal revenue (Industrial Quality and Research, Medical Technology, Consumer Markets and Semiconductor Manufacturing Technology) in almost 50 countries, has 30 production sites and around 25 development sites worldwide. Carl Zeiss AG is the holding of all subsidiaries within Zeiss Group, of which Carl Zeiss Meditec AG is the only one that is traded at the stock market. Carl Zeiss AG is owned by the foundation Carl-Zeiss-Stiftung. The Zeiss Group has its headquarters in southern Germany, in the smal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Zeiss AG
Carl Zeiss AG (), branded as ZEISS, is a German manufacturer of optical systems and optoelectronics, founded in Jena, Germany in 1846 by optician Carl Zeiss. Together with Ernst Abbe (joined 1866) and Otto Schott (joined 1884) he laid the foundation for today's multi-national company. The current company emerged from a reunification of Carl Zeiss companies in East and West Germany with a consolidation phase in the 1990s. ZEISS is active in four business segments with approximately equal revenue (Industrial Quality and Research, Medical Technology, Consumer Markets and Semiconductor Manufacturing Technology) in almost 50 countries, has 30 production sites and around 25 development sites worldwide. Carl Zeiss AG is the holding of all subsidiaries within Zeiss Group, of which Carl Zeiss Meditec AG is the only one that is traded at the stock market. Carl Zeiss AG is owned by the foundation Carl-Zeiss-Stiftung. The Zeiss Group has its headquarters in southern Germany, in the smal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vario-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] |
Rangefinder Camera
A rangefinder camera is a camera fitted with a rangefinder, typically a split-image rangefinder: a range-finding focusing mechanism allowing the photographer to measure the subject distance and take photographs that are in sharp focus. Most varieties of rangefinder show two images of the same subject, one of which moves when a calibrated wheel is turned; when the two images coincide and fuse into one, the distance can be read off the wheel. Older, non-coupled rangefinder cameras display the focusing distance and require the photographer to transfer the value to the lens focus ring; cameras without built-in rangefinders could have an external rangefinder fitted into the accessory shoe. Earlier cameras of this type had separate viewfinder and rangefinder windows; later the rangefinder was incorporated into the viewfinder. More modern designs have rangefinders coupled to the focusing mechanism so that the lens is focused correctly when the rangefinder images fuse; compare with the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hasselblad
Victor Hasselblad AB is a Swedish manufacturer of medium format cameras, photographic equipment and image scanners based in Gothenburg, Sweden. The company originally became known for its classic analog medium-format cameras that used a waist-level viewfinder. Perhaps the most famous use of the Hasselblad camera was during the Apollo program missions when the first humans landed on the Moon. Almost all of the still photographs taken during these missions used modified Hasselblad cameras. In 2016, Hasselblad introduced the world's first digital compact mirrorless medium-format camera, the X1D-50c, changing the portability of medium-format photography. Hasselblad produces about 10,000 cameras a year from a small three-storey building. Company history The company was established in 1841 in Gothenburg, Sweden, by Fritz Wiktor Hasselblad, as a trading company, F. W. Hasselblad and Co. The founder's son, Arvid Viktor Hasselblad, was interested in photography and started the phot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Large Format
Large format refers to any imaging format of or larger. Large format is larger than "medium format", the or size of Hasselblad, Mamiya, Rollei, Kowa, and Pentax cameras (using 120- and 220-roll film), and much larger than the frame of 35 mm format. The main advantage of a large format, film or digital, is a higher resolution at the same pixel pitch, or the same resolution with larger pixels or grains which allows each pixel to capture more light enabling exceptional low-light capture. A 4×5 inch image (12.903 mm²) has about 15 times the area, and thus 15× the total resolution, of a 35 mm frame (864 mm²). Large format cameras were some of the earliest photographic devices, and before enlargers were common, it was normal to just make 1:1 contact prints from a 4×5, 5×7, or 8×10-inch negative. Formats The most common large format is 4×5 inches (10.2x12.7 cm), which was the size used by cameras like the Graflex Speed Graphic and Crown Gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Press Camera
A press camera is a medium or large format view camera that was predominantly used by press photographers in the early to mid-20th century. It was largely replaced for press photography by 35mm film cameras in the 1960s, and subsequently, by digital cameras. The quintessential press camera was the Speed Graphic. Press cameras are still used as portable and rugged view cameras. Details Press cameras were widely used from the 1900s through the early 1960s and commonly have the following features: * collapsible into strong, compact boxes * flexible bellows, attached to a flatbed track * easily interchangeable lenses, mounted on a solid support * ability to accept sheet film, film packs, and roll film, through the use of interchangeable film backs and holders * ground glass focusing screen * optical viewfinder * handheld operation * reduced number, reduced range or absence of movements, in contrast to field cameras or other view camera formats * optical rangefinder focusing in so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Krasnogorskiy Zavod
Krasnogorsky zavod (russian: Красногорский завод им. С. А. Зверева, , Krasnogorsk Works named after S. A. Zverev) is a Russian factory in Krasnogorsk near Moscow which specializes in optical technology. Part of Shvabe Holding (Rostec state corporation). During the Soviet period it was called Krasnogorsk Mechanical Works (, ). The abbreviation KMZ () is still in common use. Products KMZ is known largely for its photographic and movie cameras of the Zorki, Zenit and Krasnogorsk series, several million of which were produced. It also has a large military optics and mechanical engineering division. Image:Zorki4.jpg, Zorki 4 rangefinder camera Image:Zenit12.jpg, Zenit 12 SLR camera File:Kinokamera Krasnogorsk-2.jpg, Krasnogorsk-2 movie camera Image:Krasnogorsk-3_camera.jpg, Krasnogorsk-3 movie camera Image:Horizon202.jpg, Horizon 202 panoramic camera Image:%D0%A4%D0%BE%D1%82%D0%BE%D0%B0%D0%BF%D0%BF%D0%B0%D1%80%D0%B0%D1%82_%D0%9C%D0%BE%D1%81%D0%BA%D ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jupiter-8 (lens)
The Jupiter (Russian: Юпитер, "Jupiter") series of lenses are Russian camera lenses made by various manufacturers in the former Soviet Union. They were made to fit many camera types of the time, from pre-WWII rangefinders to almost modern SLRs. They are copied from Zeiss pre-WWII designs with incremental improvements, such as coatings, introduced during production. The majority of them are based on Zeiss Sonnar optical scheme, but that's not a rule. Jupiter-3 The Jupiter-3 lens is derived from Zeiss Sonnar optical design. It has seven elements in three groups. This lens is the fastest Jupiter lens, having a maximum aperture of f/1.5. The focal length of this lens is 50mm, sometimes also expressed as 5cm. It was made for two different camera mounts, the Leica thread mount used on Zorki, FED, and some other Soviet rangefinders, and the Contax mount used on Kiev rangefinders. The latter one can be used on all Contax rangefinders, with the former ''usually'' needing to be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photographic Lens
A camera lens (also known as photographic lens or photographic objective) is an optical lens or assembly of lenses used in conjunction with a camera body and mechanism to make images of objects either on photographic film or on other media capable of storing an image chemically or electronically. There is no major difference in principle between a lens used for a still camera, a video camera, a telescope, a microscope, or other apparatus, but the details of design and construction are different. A lens might be permanently fixed to a camera, or it might be interchangeable with lenses of different focal lengths, apertures, and other properties. While in principle a simple convex lens will suffice, in practice a compound lens made up of a number of optical lens elements is required to correct (as much as possible) the many optical aberrations that arise. Some aberrations will be present in any lens system. It is the job of the lens designer to balance these and produce a desi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zoom Lens
A zoom lens is a mechanical assembly of lens elements for which the focal length (and thus angle of view) can be varied, as opposed to a fixed-focal-length (FFL) lens (see prime lens). A true zoom lens, also called a parfocal lens, is one that maintains focus when its focal length changes. Most consumer zoom lenses do not maintain perfect focus, but are still parfocal designs. Most camera phones that are advertised as having optical zoom actually use a few cameras of different but fixed focal length, combined with digital zoom to make a hybrid system. The convenience of variable focal length comes at the cost of complexity – and some compromises on image quality, weight, dimensions, aperture, autofocus performance, and cost. For example, all zoom lenses suffer from at least slight, if not considerable, loss of image resolution at their maximum aperture, especially at the extremes of their focal length range. This effect is evident in the corners of the image, when displa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Focal Length
The focal length of an optical system is a measure of how strongly the system converges or diverges light; it is the inverse of the system's optical power. A positive focal length indicates that a system converges light, while a negative focal length indicates that the system diverges light. A system with a shorter focal length bends the rays more sharply, bringing them to a focus in a shorter distance or diverging them more quickly. For the special case of a thin lens in air, a positive focal length is the distance over which initially collimated (parallel) rays are brought to a focus, or alternatively a negative focal length indicates how far in front of the lens a point source must be located to form a collimated beam. For more general optical systems, the focal length has no intuitive meaning; it is simply the inverse of the system's optical power. In most photography and all telescopy, where the subject is essentially infinitely far away, longer focal length (lower opti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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