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Sony α99
The Sony Alpha 99 was announced by Sony on September 12, 2012. It was the flagship Sony DSLR camera and of the Sony Alpha SLT line until late 2016 when it was replaced by the Sony α99 II. It features the 24.3MP 35mm full-frame Exmor APS HD CMOS sensor, with the normal sensor range of ISO 100–3200. The selectable sensitivity is up to ISO 25600, which makes this camera able to capture still images in low-light environments. This camera can also combine six images together, to generate a single image with two additional steps of ISO sensitivity. This is also the first Sony Alpha camera to use the new Sony "Mult-Interface" shoe which is a standard ISO shoe with proprietary contacts at the front of the shoe. This allows use of standard ISO hotshoe accessories without the need for adapters as in previous Alpha models. The camera ships with an adapter to allow use of older Minolta-style hot-shoe accessories. Like Sony's APS-c flagship, α77, the α99 has the ability to record F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sony SLT Camera
Single-lens translucent (SLT) is a Sony proprietary designation for Sony Alpha cameras which employ a pellicle mirror, electronic viewfinder, and phase-detection autofocus system. They employ the same Minolta A-mount as Sony Alpha DSLR cameras. Sony SLT cameras have a semi-transparent fixed mirror which diverts a portion of incoming light to a phase-detection autofocus sensor, while the remaining light strikes a digital image sensor. The image sensor feeds the electronic viewfinder, and also records still images and video on command. The utility of the SLT design is to allow full-time phase-detection autofocus during electronic viewfinder, live view, and video recording operation. With the advent of digital image sensors with integrated phase-detection, the SLT design is no longer required to accomplish this goal, as evidenced by cameras such as the Sony NEX-5R, Fujifilm X-100s, and Nikon 1, although the SLT design avoids having pixels unavailable for image formation due to their s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CMOS
Complementary metal–oxide–semiconductor (CMOS, pronounced "sea-moss", ) is a type of metal–oxide–semiconductor field-effect transistor (MOSFET) fabrication process that uses complementary and symmetrical pairs of p-type and n-type MOSFETs for logic functions. CMOS technology is used for constructing integrated circuit (IC) chips, including microprocessors, microcontrollers, memory chips (including CMOS BIOS), and other digital logic circuits. CMOS technology is also used for analog circuits such as image sensors (CMOS sensors), data converters, RF circuits (RF CMOS), and highly integrated transceivers for many types of communication. The CMOS process was originally conceived by Frank Wanlass at Fairchild Semiconductor and presented by Wanlass and Chih-Tang Sah at the International Solid-State Circuits Conference in 1963. Wanlass later filed US patent 3,356,858 for CMOS circuitry and it was granted in 1967. commercialized the technology with the trademark "COS-MO ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Megapixels
In digital imaging, a pixel (abbreviated px), pel, or picture element is the smallest addressable element in a raster image, or the smallest point in an all points addressable display device. In most digital display devices, pixels are the smallest element that can be manipulated through software. Each pixel is a sample of an original image; more samples typically provide more accurate representations of the original. The intensity of each pixel is variable. In color imaging systems, a color is typically represented by three or four component intensities such as red, green, and blue, or cyan, magenta, yellow, and black. In some contexts (such as descriptions of camera sensors), ''pixel'' refers to a single scalar element of a multi-component representation (called a ''photosite'' in the camera sensor context, although ''sensel'' is sometimes used), while in yet other contexts (like MRI) it may refer to a set of component intensities for a spatial position. Etymology The w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Single-lens Reflex Camera
A digital single-lens reflex camera (digital SLR or DSLR) is a digital camera that combines the optics and the mechanisms of a single-lens reflex camera with a digital imaging sensor. The reflex design scheme is the primary difference between a DSLR and other digital cameras. In the reflex design, light travels through the lens and then to a mirror that alternates to send the image to either a prism, which shows the image in the viewfinder, or the image sensor when the shutter release button is pressed. The viewfinder of a DSLR presents an image that will not differ substantially from what is captured by the camera's sensor as it presents it as a direct optical view through the main camera lens, rather than showing an image through a separate secondary lens. DSLRs largely replaced film-based SLRs during the 2000s. Major camera manufacturers began to transition their product lines away from DSLR cameras to mirrorless interchangeable-lens cameras (MILC) beginning in the 2010s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sony α99 II
The Sony α99 II is a flagship Sony SLT camera and continues the line of Sony A-mount camera bodies. It was first announced by Sony on September 19, 2016 at photokina 2016 and replaced the original Sony α99. Its single-lens translucent design allows for faster focusing and shooting than DSLRs. Consequently, at 12 FPS, it can shoot roughly twice as fast in continuous burst mode as competing models as of 2016. The α99 II also features best-in-class low-light autofocus. Initial demand for the camera exceeded the supply in Japan and major American retailers also quickly sold out of allocated amounts and had backordered supplies as of December 2016. The a99 II was the last a-mount camera. After five years from its launch, Sony decided to discontinue all a-mount cameras including the a99 II, in 2021. That was the end of the a-mount cameras lineup that lasted 36 years from 1985 during the Minolta SLR film era until 2021 with Sony digital SLT technology. See also *Exmor R Exm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Full-frame Digital SLR
A full-frame DSLR is a digital single-lens reflex camera (DSLR) with a 35 mm image sensor format (). Historically, 35 mm was one of the standard film formats, alongside larger ones, such as medium format and large format. The full-frame DSLR is in contrast to full-frame mirrorless interchangeable-lens cameras, and DSLR and mirrorless cameras with smaller sensors (for instance, those with a size equivalent to APS-C-size film), much smaller than a full 35 mm frame. Many digital cameras, both compact and SLR models, use a smaller-than-35 mm frame as it is easier and cheaper to manufacture imaging sensors at a smaller size. Historically, the earliest digital SLR models, such as the Nikon NASA F4 or Kodak DCS 100, also used a smaller sensor. Kodak states that 35 mm film (note: in "Academy format", 21.0 mm × 15.2 mm) has the equivalent of 6K horizontal resolution, according to a senior vice president of IMAX. This equates to 10K horizontal resolution in full- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sony Press Centre
, commonly stylized as SONY, is a Japanese multinational conglomerate corporation headquartered in Minato, Tokyo, Japan. As a major technology company, it operates as one of the world's largest manufacturers of consumer and professional electronic products, the largest video game console company and the largest video game publisher. Through Sony Entertainment Inc, it is one of the largest music companies (largest music publisher and second largest record label) and the third largest film studio, making it one of the most comprehensive media companies. It is the largest technology and media conglomerate in Japan. It is also recognized as the most cash-rich Japanese company, with net cash reserves of ¥2 trillion. Sony, with its 55 percent market share in the image sensor market, is the largest manufacturer of image sensors, the second largest camera manufacturer, and is among the semiconductor sales leaders. It is the world's largest player in the premium TV market for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sony Alpha 77
The Sony α77 was the flagship for Sony's midrange Alpha SLT camera line. The successor to the Sony A700, it is equipped with a 24.3 MP APS-C HD CMOS sensor and has a 12-fps burst-shooting mode. The camera is fitted with Sony's patented “translucent mirror” technology. On 1 May 2014 its replacement, the α77 II (ILCA-77M2) was announced with availability in June. Model variants Model variants of the α77 camera body: * SLT-A77V with GPS. * SLT-A77 without GPS (depending on country). Depending on country/market, the α77 camera is also available in different kits: * SLT-A77VQ (α77V+ 16-50mm lens). * SLT-A77VK (α77V+ 18-55mm lens). * SLT-A77VM (α77V+ 18-135mm lens). Lens mount Sony Alpha SLT-A77 uses A-mount lens bayonet. Features Image features * 24.3 megapixel Exmor APS-C HD CMOS sensor. * Updated BIONZ Image Processor. * 2nd generation Translucent Mirror Technology. * Multi-frame Noise Reduction. Autofocus and metering * 19-point autofocus sensors with 11 c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photokina
Photokina (rendered in the promoters' branding as "photokina") is a trade fair held in Europe for the photographic and imaging industries. It is the world's largest such trade fair. The first Photokina was held in Cologne, Germany, in 1950, and since 1966 it has been held biennially in September at the Koelnmesse Trade Fair and Exhibition Centre in Deutz. The final Photokina under the then-current biennial cycle took place in 2018. Initially, the promoters planned to start a new annual cycle in 2019, with future shows to be held in May, but they later decided not to begin the new annual cycle until 2020. The worldwide outbreak of the Coronavirus disease 2019 and its effect on the imaging industry made Koelnmesse decide to cancel both Photokina 2020 and Photokina 2021. Many photographic and imaging companies introduce and showcase state of the art imaging products at Photokina. Similar trade shows The show has two main competitors, both of which are annual shows held in differe ... [...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] |
DxOMark
DxOMark, currently stylized as DXOMARK, is a commercial website described as "an independent benchmark that scientifically assesses smartphones, lenses and cameras". Founded in 2008, DxOMark was originally owned by DxO Labs, a French engineering and consulting company, which is headquartered in Boulogne-Billancourt, Paris, France. DxOMark Image Labs was separated from DxO Labs in September 2017, and was later re-branded to DxOMark in 2019. DxOMark is now a wholly independent privately-owned company. DxOMark scores are used in many independent news publications and specialist media sites, including: ''The Washington Post, The New York Times, Die Zeit, Le Monde, Les Numeriques, ''NDTV'', India Today, The Indian Express, China Daily, Forbes, Wired'', ZDNet, Extreme Tech, Tech Crunch, ''TechRadar'', CNET, ''PC World'', Gizmodo, Engadget, Digital Trends, The Next Web, ''The Verge'', GSM Arena, Android Authority, Mac Rumors, ''Digital Photography Review'', '' Shutterbug'', I ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nikon D4
The Nikon D4 is a 16.2-megapixel professional-grade full frame (35mm) digital single-lens reflex camera (DSLR) announced by Nikon Corporation on 6 January 2012. It succeeds the Nikon D3S and introduces a number of improvements including a 16.2 megapixel sensor, improved auto-focus and metering sensors and the ability to shoot at an extended ISO speed of 204,800. The camera was released in February 2012 at a recommended retail price of $5999.95. It is the first camera to use the new XQD memory cards. It was replaced by the Nikon D4S as Nikon's flagship camera. The Nikon D4 is aimed at sports and action photographers and photojournalists. With a continuous shooting rate of 10fps, a 20-second burst would yield 200 full-resolution images with full metering and autofocus for each frame. If exposure and focus are locked, the shooting rate can be increased to 11fps. Features *16.4 effective megapixel Full-Frame (36 mm × 24 mm) sensor with ISO 100–12800 (ISO 50–20480 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
