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Sony DSLR-A700
The Sony α700 (DSLR-A700) was the second model launched in the Sony α series of APS-C sensor digital single-lens reflex cameras, following the α100, with several improvements over the latter. Some of the camera's technology was inspired by the former Konica Minolta Maxxum 7D, such as the man-machine command interface/commands, LCD menus, viewfinder, and lens mount. On March 8, 2007, at the PMA Trade Show, Sony announced two new ''α'' cameras, both positioned to be "above" the α100 in the Alpha line-up in terms of price and functionality. One model was referred to as a "high amateur" model, with a release date of late 2007. The α700 was discontinued, and its successor, the A77 (SLT-A77), was announced on August 24, 2011, with availability from October 2011. Release On September 6, 2007, Sony announced that the Sony α700 would be launched on November 16, 2007. However, the α700 went on sale almost immediately. By the end of Sept 2007, the α700 could be ordered from son ... [...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 mechanisms of a single-lens reflex camera with a solid-state image sensor and digitally records the images from the 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 optical 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 Image sensor, 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 mirror ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Konica Minolta Maxxum 7D
The Maxxum 7D, labelled Dynax 7D in Europe/Hong Kong and α-7 Digital in Japan and officially named "DG-7D", is a 6.1 megapixel digital single-lens reflex camera, or DSLR, produced by Konica Minolta. It was the top model of their DSLR range; the Maxxum/Dynax 5D consumer-grade model was the other. The 7D was first announced on 2004-02-12 at the PMA show, with full details released just before the 2004 photokina show on 2004-09-15. The production camera was released in late 2004. Production ceased when Konica Minolta announced their exit from the camera business in January 2006. Regardless of its high specification (for the time) and innovative feature set, it came with a very high price tag. The 7D was available as body only, but also with a 17-35mm 2.8-4 kit lens. Like the Nikon 18-70 kit lens found with many Nikon DSLRs, this lens was regarded as of high enough quality to do justice to the sensor within the body, unlike the cheap zoom kit lenses found with many DSLRs. In 2006 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Live Preview
Live preview is a feature that allows a digital camera's display screen to be used as a viewfinder. This provides a means of previewing framing and other exposure before taking the photograph. In most such cameras, the preview is generated by means of continuously and directly projecting the image formed by the lens onto the main image sensor. This in turn feeds the electronic screen with the live preview image. The electronic screen can be either a liquid crystal display (LCD) or an electronic viewfinder (EVF). Background The concept for cameras with live preview largely derives from electronic (video) TV cameras. Until 1995 most digital cameras did not have live preview, and it was more than ten years after this that the higher end digital single-lens reflex cameras (DSLR) adopted this feature, as it is fundamentally incompatible with the swinging-mirror single-lens reflex mechanism. The first digital still camera with an LCD for autogain framing live preview was th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sony Alpha 350
The Sony α 350 (DSLR-A350) is a digital single-lens reflex camera (DSLR) being replaced from 2009 by the similarly specified Sony α 380. It features live view and body-integrated image stabilization. Details The Sony α 350 was introduced in Japan in March 2008. It has a 14.2 megapixel CCD sensor, the second highest pixel count for an APS-C format DSLR at the time of its launch, marginally exceeded by the Pentax K20D CMOS sensor. The Live View is provided by a secondary low-resolution video sensor placed in the mirror-prism housing to provide a view of the focusing screen, which allows retention of phase-contrast autofocus. Live View is mechanically switched via a moving mirror surface. When Live View is active, the normal exposure metering is replaced by metering from the LV image itself offering many more zones or points, along with more accurate white balance. This system is shared with the Sony Alpha 300, a 10.2 megapixel variant. References External links Specificat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polycarbonate
Polycarbonates (PC) are a group of thermoplastic polymers containing carbonate ester, carbonate groups in their chemical structures. Polycarbonates used in engineering are strong, toughness, tough materials, and some grades are optically transparent. They are easily worked, injection molding, molded, and thermoforming, thermoformed. Because of these properties, polycarbonates find many applications. Polycarbonates do not have a unique resin identification code, resin identification code (RIC) and are identified as "Other", 7 on the RIC list. Products made from polycarbonate can contain the precursor monomer bisphenol A (BPA). Structure Carbonate esters have planar OC(OC)2 cores, which confer rigidity. The unique O=C bond is short (1.173 Å in the depicted example), while the C-O bonds are more ether-like (the bond distances of 1.326 Å for the example depicted). Polycarbonates received their name because they are polymers containing carbonate ester, carbonate groups (−O−( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HDMI
High-Definition Multimedia Interface (HDMI) is a proprietary digital interface used to transmit high-quality video and audio signals between devices. It is commonly used to connect devices such as televisions, computer monitors, projectors, gaming consoles, and personal computers. HDMI supports uncompressed video and either compressed or uncompressed digital audio, allowing a single cable to carry both signals. Introduced in 2003, HDMI largely replaced older analog video standards such as composite video, S-Video, and VGA connector, VGA in consumer electronics. It was developed based on the CEA-861 standard, which was also used with the earlier Digital Visual Interface (DVI). HDMI is electrically compatible with DVI video signals, and adapters allow interoperability between the two without signal conversion or loss of quality. Adapters and active converters are also available for connecting HDMI to other video interfaces, including the older analog formats, as well as digital fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Best Buy
Best Buy Co., Inc. is an American multinational consumer electronics retailer headquartered in Richfield, Minnesota. Originally founded by Richard M. Schulze and James Wheeler in 1966 as an audio specialty store called Sound of Music, it was rebranded under its current name with an emphasis on consumer electronics in 1983. Best Buy operates internationally in Canada, and formerly operated in China until February 2011 (when the faction was merged with Five Star) and in Mexico until December 2020 (due to the effects of the COVID-19 pandemic). The company also operated in Europe until 2012. Its subsidiaries include Geek Squad, Magnolia Audio Video, and Pacific Sales. Best Buy also operates the Best Buy Mobile and Insignia brands in North America, plus Five Star in China. Best Buy sells cellular phones from Verizon Wireless, AT&T Mobility, T-Mobile US, T-Mobile, Boost Mobile and Ting Mobile in the United States. In Canada, carriers include Bell Mobility, Rogers Wireless, Telus Mobi ... [...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 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Photo Marketing Association Annual Convention And Trade Show
A photograph (also known as a photo, or more generically referred to as an ''image'' or ''picture'') is an image created by light falling on a photosensitive surface, usually photographic film or an electronic image sensor. The process and practice of creating such images is called photography. Most photographs are now created using a smartphone or camera, which uses a lens to focus the scene's visible wavelengths of light into a reproduction of what the human eye would perceive. Etymology The word ''photograph'' was coined in 1839 by Sir John Herschel and is based on the Greek φῶς (''phos''), meaning "light", and γραφή (''graphê''), meaning "drawing, writing", together meaning "drawing with light". History The first permanent photograph, a contact-exposed copy of an engraving, was made in 1822 using the bitumen-based "heliography" process developed by Nicéphore Niépce. The first photographs of a real-world scene, made using a camera obscura, followed a few year ... [...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 mechanisms of a single-lens reflex camera with a solid-state image sensor and digitally records the images from the 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 optical 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 Image sensor, 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 mirror ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CMOS
Complementary metal–oxide–semiconductor (CMOS, pronounced "sea-moss ", , ) is a type of MOSFET, metal–oxide–semiconductor field-effect transistor (MOSFET) semiconductor device fabrication, fabrication process that uses complementary and symmetrical pairs of p-type semiconductor, p-type and n-type semiconductor, n-type MOSFETs for logic functions. CMOS technology is used for constructing integrated circuit (IC) chips, including microprocessors, microcontrollers, memory chips (including Nonvolatile BIOS memory, CMOS BIOS), and other digital logic circuits. CMOS technology is also used for analog circuits such as image sensors (CMOS sensors), data conversion, data converters, RF circuits (RF CMOS), and highly integrated transceivers for many types of communication. In 1948, Bardeen and Brattain patented an insulated-gate transistor (IGFET) with an inversion layer. Bardeen's concept forms the basis of CMOS technology today. The CMOS process was presented by Fairchild Semico ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
APS-C
Advanced Photo System type-C (APS-C) is an image sensor format approximately equivalent in size to the Advanced Photo System film negative in its C ("Classic") format, of 25.1×16.7 mm, an aspect ratio of 3:2 and Ø 30.15 mm field diameter. It is therefore also equivalent in size to the Super 35 motion picture film format, which has the dimensions of 24.89 mm × 18.66 mm (0.980 in × 0.735 in) and Ø 31.11 mm field diameter. Sensors approximating these dimensions are used in many digital single-lens reflex cameras (DSLRs), mirrorless interchangeable-lens cameras (MILCs), and a few large-sensor live-preview digital cameras. APS-C size sensors are also used in a few digital rangefinder camera, rangefinders. Such sensors exist in many different variants depending on the manufacturer and camera model. All APS-C variants are considerably smaller than 35 mm standard film which measures 36×24 mm. Because of this, devices with APS-C sensors a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
