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Tair (lens)
Tair is the name of a series of prime lenses manufactured by KMZ in the Soviet Union. Tair 11 The Tair 11 series have a focal length of 133mm with a maximum aperture of f/2.8. Variants include the Tair 11A for the M42 lens mount and the original Tair 11 for the M39 lens mount. The Tair 11-T is a "Technical" or "Television" for cinecamera or surveillance. The Tair 11-2 is an M42 lens with a focal length of 133mm. A unique feature of the Tair 11 series is the twenty aperture blades, far more than many modern lenses. Tair 3 The Tair 3 is a 300mm f/4.5 telephoto lens. Like many other Tair lenses, it uses the M39/M42 lens mount. Although these are mostly black coloured lenses, there exist some very rare light grey ones manufactured earlier. The lens enjoys a reputation of having excellent image quality Tair 33 The Tair 33 is a 300mm f/4.5 telephoto A telephoto lens, in photography and cinematography, is a specific type of a long-focus lens in which the physical length of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tair 11A Oblique View
Tair may refer to: * Tair, Egyptian princess, daughter of Ahmose I and his secondary wife, Kasmut. Tair is derived from "altair", the Arabic word for a bird. * Tair Airways * Tair Carn Uchaf * Tair (lens), a Soviet telephoto prime lens series manufactured by Zenit (camera), Zenit. TAIR may refer to : * The Arabidopsis Information Resource, a database on ''Arabidopsis thaliana'' genome Tairov may refer to : * Alexander Tairov (1885-1950), a Russia theatre director * Tairov, a village in the Armavir Province of Armenia See also * Taer (other) * Tahir {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prime Lens
In film and photography, a prime lens is a fixed focal length photographic lens (as opposed to a zoom lens), typically with a maximum aperture from f2.8 to f1.2. The term can also mean the primary lens in a combination lens system. Confusion between these two meanings can occur without clarifying context. Alternate terms, such as ''primary focal length'', ''fixed focal length'', or ''FFL'' are sometimes used to avoid ambiguity. As alternative to zoom lens The term ''prime'' has come to mean the opposite of ''zoom''—a fixed-focal-length, or unifocal lens. While a prime lens of a given focal length is less versatile than a zoom lens, it is often of superior optical quality, wider maximum aperture, lighter weight, and smaller size. These advantages stem from having fewer moving parts, optical elements optimized for one particular focal length, and a less complicated lens formula that creates fewer optical aberration issues. Larger maximum aperture (smaller f-number) facilitate ... [...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] |
Soviet Union
The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen national republics; in practice, both its government and its economy were highly centralized until its final years. It was a one-party state governed by the Communist Party of the Soviet Union, with the city of Moscow serving as its capital as well as that of its largest and most populous republic: the Russian SFSR. Other major cities included Leningrad (Russian SFSR), Kiev (Ukrainian SSR), Minsk ( Byelorussian SSR), Tashkent (Uzbek SSR), Alma-Ata (Kazakh SSR), and Novosibirsk (Russian SFSR). It was the largest country in the world, covering over and spanning eleven time zones. The country's roots lay in the October Revolution of 1917, when the Bolsheviks, under the leadership of Vladimir Lenin, overthrew the Russian Provisional Government ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tair 11A Frontal View
{{disambig ...
Tair may refer to: * Tair, Egyptian princess, daughter of Ahmose I and his secondary wife, Kasmut. Tair is derived from "altair", the Arabic word for a bird. * Tair Airways * Tair Carn Uchaf * Tair (lens), a Soviet telephoto prime lens series manufactured by Zenit. TAIR may refer to : * The Arabidopsis Information Resource, a database on ''Arabidopsis thaliana'' genome Tairov may refer to : * Alexander Tairov (1885-1950), a Russia theatre director * Tairov, a village in the Armavir Province of Armenia See also * Taer (other) * Tahir Taher ( ar, طاهر) (spelled Tahir and Tahar in English and French, Тагир in Russian; Pashto,Urdu and Persian: طاهر,; ) is a name meaning "pure" or "virtuous". The origin of this name is Arabic. There are several Semitic variations tha ... [...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] |
F-number
In optics, the f-number of an optical system such as a camera lens is the ratio of the system's focal length to the diameter of the entrance pupil ("clear aperture").Smith, Warren ''Modern Optical Engineering'', 4th Ed., 2007 McGraw-Hill Professional, p. 183. It is also known as the focal ratio, f-ratio, or f-stop, and is very important in photography. It is a dimensionless number that is a quantitative measure of lens speed; increasing the f-number is referred to as ''stopping down''. The f-number is commonly indicated using a lower-case hooked f with the format ''N'', where ''N'' is the f-number. The f-number is the reciprocal of the relative aperture (the aperture diameter divided by focal length). Notation The f-number is given by: N = \frac \ where f is the focal length, and D is the diameter of the entrance pupil (''effective aperture''). It is customary to write f-numbers preceded by "", which forms a mathematical expression of the entrance pupil diameter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M42 Lens Mount
The M42 lens mount is a screw thread mounting standard for attaching lenses to 35 mm cameras, primarily single-lens reflex models. It is more accurately known as the M42 × 1 mm standard, which means that it is a metric screw thread of 42 mm diameter and 1 mm thread pitch. (The M42 lens mount should not be confused with the T-mount, which shares the 42mm throat diameter, but differs by having a 0.75mm thread pitch.) It was first used by the East German brands VEB Zeiss Ikon in the Contax S of 1949, and KW in the Praktica of the same year. VEB Zeiss Ikon and KW were merged into the Pentacon brand in 1959, along with several other East German camera makers. M42 thread mount cameras first became well known under the Praktica brand, and thus the M42 mount is known as the Praktica thread mount.The M42 mount is sometimes referred to as a "P" thread. See, e.g., Since there were no proprietary elements to the M42 mount, many other manufacturers used it; this ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M39 Lens Mount
The M39 lens mount is a screw thread mounting system for attaching lenses to 35 mm cameras, primarily rangefinder (RF) Leicas. It is also the most common mount for Photographic enlarger lenses. True Leica Thread-Mount (LTM) is 39 mm in diameter and has a thread of 26 turns-per-inch or threads-per-inch (tpi) (approximately 0.977 mm pitch) of Whitworth thread form. Whitworth threads were then the norm in microscope manufacture. The Royal Microscopical Society (RMS) thread, also known as ''society thread'', is a special 0.8" diameter x 36 tpi Whitworth thread used for microscope objective lenses and Leitz was a major manufacturer of microscopes, so the tooling at the plant was already set up to produce the Whitworth thread form. The Soviets in the 1930s produced their early FED cameras in M39×1 (39 mm by 1 mm DIN thread). Early Canon cameras also used a different M39 × 24 tpi thread mount, [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diaphragm (optics)
In optics, a diaphragm is a thin opaque structure with an opening (aperture) at its center. The role of the diaphragm is to ''stop'' the passage of light, except for the light passing through the ''aperture''. Thus it is also called a stop (an aperture stop, if it limits the brightness of light reaching the focal plane, or a field stop or flare stop for other uses of diaphragms in lenses). The diaphragm is placed in the light path of a lens or objective, and the size of the aperture regulates the amount of light that passes through the lens. The centre of the diaphragm's aperture coincides with the optical axis of the lens system. Most modern cameras use a type of adjustable diaphragm known as an iris diaphragm, and often referred to simply as an iris. See the articles on aperture and f-number for the photographic effect and system of quantification of varying the opening in the diaphragm. Iris diaphragms versus other types A natural optical system that has a diaphragm an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photosniper - Assembled
Zenit (russian: Зени́т) is a Russian (and formerly Soviet) camera brand manufactured by KMZ in the town of Krasnogorsk near Moscow since 1952 and by BelOMO in Belarus since the 1970s. The Zenit trademark is associated with 35 mm SLR cameras. Among related brands are Zorki for 35 mm rangefinder cameras, Moskva (Moscow) and Iskra for medium-format folding cameras and Horizon for panoramic cameras. In the 1960s and 1970s, they were exported by Mashpriborintorg to 74 countries. The name is sometimes spelled Zenith in English, such as the manuals published by the UK Zenit-importer TOE. However, TOE's imported camera bodies as from 1963 retained the "Zenit" badges. The early Zorki-based models before that time were labelled "Zenith" in a handwritten style of script. Digital models During the 2018 Photokina expo, Zenit announced that it was resuming camera and lens production for the M-mount, as well as for unspecified Nikon and Canon mounts in 2019. Zenit M Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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