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Phase One (company)
Phase One is a Danish company specializing in high-end digital photography equipment and software. They manufacture open platform based medium format camera systems and solutions. Their own RAW processing software, Capture One, supports many DSLRs besides their backs. PODAS workshops (Phase One Digital Artist Series) is a series of worldwide photography workshops designed for digital photographers interested in working with medium format, high-resolution cameras. PODAS is a part of the Phase One educational division. Each attendee receives a Phase One digital camera system for the duration of the workshop. On 18 February 2014, it was announced that UK-based private equity firm Silverfleet Capital would acquire a 60% majority stake in the company. On 17 June 2019, Phase One A/S was once again sold, this time to the Danish investment company Axcel. Products Cameras In 2009, Phase One purchased a major stake in Japanese Mamiya and the two companies developed products togeth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aktieselskab
''Aktieselskab'' (; abbr.: A/S, or a/s, Unicode ; literally meaning: "stock company") is the Danish name for a stock-based corporation. An ''aktieselskab'' may be either publicly traded or private. Liability The shareholders of an ''aktieselskab'' are not liable for the debts of the company. This can be used to protect the assets of the company against creditors by forming a group of companies. If an A/S is owned by a holding company (typically another A/S), the profit from the production company can be transferred to the holding company. Since there is no liability for the owners of an A/S, creditors from the production company will not be able to claim the profit in case of bankruptcy. Professional creditors, such as banks, protect themselves from this by demanding that the holding company guarantees the debts of the production company. Formation of an ''aktieselskab'' The formation of an ''aktieselskab'' requires a number of steps, including the following: *Notification c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Private Equity
In the field of finance, the term private equity (PE) refers to investment funds, usually limited partnerships (LP), which buy and restructure financially weak companies that produce goods and provide services. A private-equity fund is both a type of ownership of assets ( financial equity) and is a class of assets (debt securities and equity securities), which function as modes of financial management for operating private companies that are not publicly traded in a stock exchange. Private-equity capital is invested into a target company either by an investment management company (private equity firm), or by a venture capital fund, or by an angel investor; each category of investor has specific financial goals, management preferences, and investment strategies for profiting from their investments. Each category of investor provides working capital to the target company to finance the expansion of the company with the development of new products and services, the restruct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Product Lifetime
Product lifetime or product lifespan is the time interval from when a product is sold to when it is discarded. Product lifetime is slightly different from service life because the latter consider only the effective time the product is used. It is also different from product economic life which refers to the point where maintaining a product is more expensive than replacing it; from product technical life which refers to the maximum period during which a product has the physical capacity to function; and from the functional life which is the time a product should last regardless of external intervention to increase its lifespan. Product lifetime represent an important area of enquiry with regards to product design, the circular economy and sustainable development. This is because products, with the materials involved in their design, production, distribution, use and disposal (across their life cycle), embody carbon due to the energy involved in these processes. Therefore, if produ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charge-coupled Device
A charge-coupled device (CCD) is an integrated circuit containing an array of linked, or coupled, capacitors. Under the control of an external circuit, each capacitor can transfer its electric charge to a neighboring capacitor. CCD sensors are a major technology used in digital imaging. In a CCD image sensor, pixels are represented by p-doped metal–oxide–semiconductor (MOS) capacitors. These MOS capacitors, the basic building blocks of a CCD, are biased above the threshold for inversion when image acquisition begins, allowing the conversion of incoming photons into electron charges at the semiconductor-oxide interface; the CCD is then used to read out these charges. Although CCDs are not the only technology to allow for light detection, CCD image sensors are widely used in professional, medical, and scientific applications where high-quality image data are required. In applications with less exacting quality demands, such as consumer and professional digital cameras, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Active Pixel Sensor
An active-pixel sensor (APS) is an image sensor where each pixel sensor unit cell has a photodetector (typically a pinned photodiode) and one or more active transistors. In a metal–oxide–semiconductor (MOS) active-pixel sensor, MOS field-effect transistors (MOSFETs) are used as amplifiers. There are different types of APS, including the early NMOS APS and the now much more common complementary MOS (CMOS) APS, also known as the CMOS sensor. CMOS sensors are used in digital camera technologies such as cell phone cameras, web cameras, most modern digital pocket cameras, most digital single-lens reflex cameras (DSLRs), and mirrorless interchangeable-lens cameras (MILCs). CMOS sensors emerged as an alternative to charge-coupled device (CCD) image sensors and eventually outsold them by the mid-2000s decade. The term ''active pixel sensor'' is also used to refer to the individual pixel sensor itself, as opposed to the image sensor. In this case, the image sensor is sometimes call ... [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaf (Israeli Company)
Leaf is an Israeli company that manufactures high-end digital backs for medium format and large format cameras. It was previously a division of Scitex and later Kodak, and is now a subsidiary of Phase One. In 1991, Leaf introduced the first medium format digital camera back, the Leaf DCB1, nicknamed ‘The Brick’, which had a resolution of 4 million pixels (4 megapixels). As of 2012, Leaf produces the Credo line of digital camera backs, ranging from 40 to 80 megapixels. Until 2010, Leaf also produced photography workflow software Leaf Capture. Products Digital camera backs After Leaf's DCB, the digital backs evolved into two product lines, the Aptus and the (now discontinued) Valeo. The main difference is that the Aptus models have a 3.5-inch touchscreen, where the Valeos have no on-board display. The Valeos can still be used untethered by using the DP-67 software or the more recent WiView software on a Compaq iPAQ. The iPAQs are connected via Bluetooth with the digital ba ... [...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 pho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Back
A digital camera back is a device that attaches to the back of a camera in place of the traditional negative film holder and contains an electronic image sensor. This lets cameras that were designed to use film take digital photographs. These camera backs are generally expensive by consumer standards ( US$5,000 and up) and are primarily built to be attached on medium- and large-format cameras used by professional photographers. Types Two sensor back types are commonly used: single shot back (non-scanning) and scan back. Some backs, primarily older ones, require multiple exposures to capture an image; generally one each for red, green, and blue. These are called multi-shot or 3-shot backs. As technology advanced single-shot backs became more practical; by 2008 most backs manufactured were single-shot. Early backs had to be used tethered by a cable to a controlling computer that would store the images they took. Newer models added the ability to store the photos inside the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Profoto
Profoto is a Swedish company that develops photographic flashes and other light shaping tools for professional photographers. It was founded in 1968 by Conny Dufgran and Eckhard Heine in Stockholm. History Profoto AB was founded in Stockholm, 1968, by Conny Dufgran, photography equipment retailer, and Eckhard Heine, photographer and engineer. Several notable professionals have used different Profoto products during their careers, such as Annie Leibovitz, Herb Ritts, and David LaChapelle. Products The product range is mainly focused on studio photography, and includes battery powered flash generators for situations where portability is needed. There are remote control units that can be attached to a digital camera's flash socket and take advantage of flash synchronization and automatic through-the-lens measuring functionalities. Profoto also sells speed rings, softboxes, rasters, and other tools that shape the light cone. The battery powered AirTTL flash units B1 and B2 ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaf Shutter
In photography, a shutter is a device that allows light to pass for a determined period, exposing photographic film or a photosensitive digital sensor to light in order to capture a permanent image of a scene. A shutter can also be used to allow pulses of light to pass outwards, as seen in a movie projector or a signal lamp. A shutter of variable speed is used to control exposure time of the film. The shutter is constructed so that it automatically closes after a certain required time interval. The speed of the shutter is controlled by a ring outside the camera, on which various timings are marked. Camera shutter Camera shutters can be fitted in several positions: * Leaf shutters are usually fitted within a lens assembly (''central shutter''), or more rarely immediately behind (''behind-the-lens shutter'') or, even more rarely, in front of a lens, and shut off the beam of light where it is narrow. * Focal-plane shutters are mounted near the focal plane and move to uncover ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Focal-plane Shutter
In camera design, a focal-plane shutter (FPS) is a type of photographic shutter that is positioned immediately in front of the focal plane of the camera, that is, right in front of the photographic film or image sensor. Two-curtain shutters The traditional type of focal-plane shutter in 35 mm cameras, pioneered by Leitz for use in its Leica cameras, uses two shutter curtains, made of opaque rubberised fabric, that run horizontally across the film plane. For slower shutter speeds, the first curtain opens (usually) from right to left, and after the required time with the shutter open, the second curtain closes the aperture in the same direction. When the shutter is cocked again the shutter curtains are moved back to their starting positions, ready to be released. Focal-plane shutter at low speed ''Figure 1:'' The black rectangle represents the frame aperture through which the exposure is made. It is currently covered by the first shutter curtain, shown in red. The sec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
