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Minolta SR Mount
The Minolta SR-mount was the bayonet mounting system used in all 35 mm Single-lens reflex camera, SLR cameras made by Minolta with interchangeable manual focusing lenses. Several iterations of the mounting were produced over the decades, and as a result, the mount itself was sometimes referred to by the name of the corresponding lens generation (f.e. "MC", "MD" or "X-600") instead. Design Compatibility All lenses for these mounts are interchangeable between older and newer Minolta manual focus 35 mm film SLR bodies. There are exceptions, such as, the lenses before 1961 feature a slightly different aperture leverage, and thus the automatic diaphragm may not work correctly on post-1961 cameras, and later MC/MD tabs may hit a screw of the front cover on earlier cameras. Four design enhancements, all forwardly inclusive and backwardly compatible, are: # SR - 1958-1966: Plain SR-bayonet featuring automatic diaphragm. Lenses are labelled ''Rokkor'' (pre-set) or ''Auto Rokkor'' (automati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minolta XE
The Minolta XE, known as the XE-1 in Europe and the XE-7 in North America, is a manual focus, 135 film, 35 mm single-lens reflex camera produced by Minolta of Japan between 1974 and 1977. It was developed in collaboration with Leica Camera and has many similarities to the Leica R3. The XE uses a Ernst Leitz GmbH, Leitz-Nidec Copal Corporation, Copal electronic, vertically traveling, metal blade focal plane shutter supporting exposure times of 1/1000 of a second to four seconds, plus bulb setting. In aperture priority auto-exposure mode, the shutter speed is varied steplessly; in manual mode, the shutter speeds are selected in whole stop increments. The camera has a very short shutter lag of about 38ms, among the best for an SLR regardless of manufacturer. Image:Verschlusszeitenrad Minolta XE-5.jpg, Detail Image:XE7NoCvr.jpg, XE-7 with covers removed, exposing the electronics References See also * Minolta X-1 * Minolta XE-5 * Minolta XD 135 film cameras Minol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minolta A-mount
was a Japanese manufacturer of cameras, lenses, camera accessories, photocopiers, fax machines, and laser printers. Minolta Co., Ltd., which is also known simply as Minolta, was founded in Osaka, Japan, in 1928 as . It made the first integrated autofocus 35 mm SLR camera system. In 1931, the company adopted its final name, an acronym for "Mechanism, Instruments, Optics, and Lenses by Tashima". In 2003, Minolta merged with Konica to form Konica Minolta. On 19 January 2006, Konica Minolta announced that it was leaving the camera and photo business, and that it would sell a portion of its SLR camera business to Sony as part of its move to pull completely out of the business of selling cameras and photographic film. History Milestones *1928: establishes Nichi-Doku Shashinki Shōten ("Japanese-German photo company," the precursor of Minolta Co., Ltd.). *1929: Marketed the company's first camera, the "Nifcarette" (ニフカレッテ). *1937: The Minolta Flex is Japan's seco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lens Mounts
A lens is a transmissive optics, optical device that focuses or disperses a light beam by means of refraction. A simple lens consists of a single piece of transparent material, while a #Compound lenses, compound lens consists of several simple lenses (''elements''), usually arranged along a common Optical axis, axis. Lenses are made from materials such as glass or plastic and are Grinding (abrasive cutting), ground, Polishing, polished, or Molding (process), molded to the required shape. A lens can focus light to form an image, unlike a Prism (optics), prism, which refracts light without focusing. Devices that similarly focus or disperse waves and radiation other than visible light are also called "lenses", such as microwave lenses, electron lenses, acoustic lenses, or explosive lenses. Lenses are used in various imaging devices such as telescopes, binoculars, and cameras. They are also used as visual aids in glasses to correct defects of vision such as Near-sightedness, myopia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minolta V-mount
was a Japanese manufacturer of cameras, lenses, camera accessories, photocopiers, fax machines, and laser printers. Minolta Co., Ltd., which is also known simply as Minolta, was founded in Osaka, Japan, in 1928 as . It made the first integrated autofocus 35 mm SLR camera system. In 1931, the company adopted its final name, an acronym for "Mechanism, Instruments, Optics, and Lenses by Tashima". In 2003, Minolta merged with Konica to form Konica Minolta. On 19 January 2006, Konica Minolta announced that it was leaving the camera and photo business, and that it would sell a portion of its SLR camera business to Sony as part of its move to pull completely out of the business of selling cameras and photographic film. History Milestones *1928: establishes Nichi-Doku Shashinki Shōten ("Japanese-German photo company," the precursor of Minolta Co., Ltd.). *1929: Marketed the company's first camera, the "Nifcarette" (ニフカレッテ). *1937: The Minolta Flex is Japan's seco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Minolta SR-mount Lenses
Minolta sold List of Minolta SR-mount cameras, cameras and lenses with the Minolta SR-mount between 1958 and 1996. Nomenclature Most Minolta lenses for SR-mount cameras are branded ''Rokkor''; in the United States, to combat unofficial gray market imports, lenses officially imported were engraved as ''Rokkor-X'', with the X colored orange. Before 1975, lenses also carried a two-letter suffix indicating the construction. Because the number of groups is always equal to or less than the number of lens elements, certain combinations are not possible (for instance -QC, which would be a four-group, three-element lens). In other cases, the combination is not used, such as -QG, which would be a four-group, seven-element lens. Although the -OJ suffix was never used for a production lens, a prototype MC Rokkor-OJ 24 mm lens was shown at Photokina 1970. In addition to Rokkor-branded lenses, Minolta also sold a lower-cost line of lenses, designated ''Celtic''. Compared to the Rokkor le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Minolta SR-mount Cameras
Minolta manufactured and marketed a line of 135 film, 35mm film single lens reflex cameras (SLRs) and List of Minolta SR-mount lenses, lenses with the Minolta SR-mount between 1958 and 1996; Minolta later introduced the Minolta A-mount system in 1985, a line of autofocus SLRs and lenses with the mechanically incompatible Minolta A-mount, which eventually supplanted the manual focus system. Overview The first Minolta SLRs were marketed with SR- model numbers starting from 1958 with the Minolta SR-2, which featured semi-automatic Diaphragm (optics), diaphragm operation with Auto-Rokkor lenses: winding the film advance lever opened the diaphragm and cocked the shutter; when the shutter was released, the iris would stop down to the selected aperture. These were succeeded by the SR-T models, which incorporated through-the-lens metering in the body, starting from 1966 with the Minolta SR-T 101, SR-T 101. The SR-T models were succeeded by the X models, which include the Minolta X-1, X ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tele-converter
A teleconverter (sometimes called tele extender) is a secondary lens mounted between a camera and a photographic lens which enlarges the central part of an image obtained by the lens. For example, a 2× teleconverter for a 35 mm camera enlarges the central 12×18 mm part of an image to the size of 24×36 mm in the standard 35 mm film format. Teleconverters are typically made in 1.4×, 1.7×, 2× and 3× variants, with 1.4× and 2× being the most common. A 2× teleconverter doubles the apparent focal length of a given lens. Teleconverters also decrease the intensity of the light that reaches the film plane (or sensor) by the square of its magnification. A 2× teleconverter reduces the light to 1/4, doubles the focal ratio and halves the resolution of the master lens it is connected to. This, however, does not necessarily halve the resolution of the digital image. A closely related device reduces the focal length. It is generally marketed under the name sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sony A-mount
is a Japanese multinational conglomerate headquartered at Sony City in Minato, Tokyo, Japan. The Sony Group encompasses various businesses, including Sony Corporation (electronics), Sony Semiconductor Solutions (imaging and sensing), Sony Entertainment (including Sony Pictures and Sony Music Group), Sony Interactive Entertainment (video games), Sony Financial Group, and others. Sony was founded in 1946 as by Masaru Ibuka and Akio Morita. In 1958, the company adopted the name Initially an electronics firm, it gained early recognition for products such as the TR-55 transistor radio and the CV-2000 home video tape recorder, contributing significantly to Japan's post-war economic recovery. After Ibuka's retirement in the 1970s, Morita served as chairman until 1994, overseeing Sony's rise as a global brand recognized for innovation in consumer electronics. Landmark products included the Trinitron color television, the Walkman portable audio player, and the co-developmen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Depth Of Field
The depth of field (DOF) is the distance between the nearest and the farthest objects that are in acceptably sharp focus (optics), focus in an image captured with a camera. See also the closely related depth of focus. Factors affecting depth of field For cameras that can only focus on one object distance at a time, depth of field is the distance between the nearest and the farthest objects that are in acceptably sharp focus in the image. "Acceptably sharp focus" is defined using a property called the "circle of confusion". The depth of field can be determined by focal length, distance to subject (object to be imaged), the acceptable circle of confusion size, and aperture. Limitations of depth of field can sometimes be overcome with various techniques and equipment. The approximate depth of field can be given by: \text \approx \frac for a given maximum acceptable circle of confusion , focal length , f-number , and distance to subject . As distance or the size of the acc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nikon Z-mount
Nikon Z-mount (stylised as \mathbb) is an interchangeable lens mount developed by Nikon for its Full-frame mirrorless interchangeable-lens camera, mirrorless digital cameras. In late 2018, Nikon released two cameras that use this mount, the Full-frame DSLR, full-frame Nikon Z7 and Nikon Z6. In late 2019 Nikon announced their first Z-mount camera with an APS-C sensor, the Nikon Z50. In July 2020 the entry-level full-frame Nikon Z5, Z5 was introduced. In October 2020, Nikon announced the Nikon Z6II and Nikon Z7II, which succeed the Z6 and Z7, respectively. The APS-C lineup was expanded in July 2021, with the introduction of the retro styled Nikon Zfc, and in October 2021, Nikon unveiled the Nikon Z9, which effectively succeeds the brand's flagship Nikon D6, D6 Full-frame DSLR, DSLR. The APS-C lineup was further expanded with the Nikon Z30, announced at the end of June 2022. The Nikon Z6III was announced in June 2024. In November 2024, Nikon announced the Nikon Z50II, Z50II, the fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canon RF Lens Mount
The Canon RF lens mount is an interchangeable-lens mount developed by Canon for its full-frame mirrorless interchangeable-lens cameras, and featured first by the EOS R, followed by the EOS RP. The RF mount was announced in September 2018. In May 2022, Canon announced APS-C EOS R cameras (the EOS R10 and EOS R7) and RF-S lenses designed for these cameras. The RF mount allows for the use of Canon EF and EF-S mount lenses using one of three Canon-made lens adapters. When an RF-S or EF-S lens is attached, however, the camera will only function as an APS-C camera, not a full-frame camera. Details Canon full-frame cameras have used the EF lens mount since 1987. In comparison with that mount, the RF mount's inner diameter is the same at 54 mm. The RF mount's flange focal distance at 20 mm is much shorter than that of the Canon EF and EF-S mounts at 44 mm. The EF-M mount has a flange focal distance of 18 mm. An EF-EOS R lens adapter enables Canon EF, EF-S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fujifilm FX-mount
, trading as , or simply Fuji, is a Japanese multinational conglomerate headquartered in Tokyo, Japan, operating in the areas of photography, optics, office and medical electronics, biotechnology, and chemicals. The company started as a manufacturer of photographic films, which it still produces. Fujifilm products include document solutions, medical imaging and diagnostics equipment, cosmetics, pharmaceutical drugs, regenerative medicine, stem cells, biologics manufacturing, magnetic tape data storage, optical films for flat-panel displays, optical devices, photocopiers, printers, digital cameras, color films, color paper, photofinishing and graphic arts equipment and materials. Fujifilm is part of the Sumitomo Mitsui Financial Group financial conglomerate (''keiretsu''). History 20th century Fuji Photo Film Co., Ltd. was established in 1934 as a subsidiary of Daicel producing photographic films. In the 1940s, Fuji Photo entered the optical glasses, lenses and equipment ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
