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Canon EOS 6D Mark II
The Canon EOS 6D Mark II is a 26.2-megapixel full-frame digital single-lens reflex camera announced by Canon on June 29, 2017. Impressions from the Canon press event were mixed, with many saying the camera is "a sizeable upgrade, but feels dated". Critics point out that the 6D does not support 4K video shooting and its 45 AF points are dense around the center, resulting in slower focus and recompose maneuvers when photographing moving subjects. Main features New features over the EOS 6D are: * New 26.2 megapixel CMOS sensor with Dual Pixel CMOS AF, (total 27.1 megapixels), instead of 20mp CMOS sensor with contrast detect. * DIGIC 7, standard ISO 100–40000, expandable from L: 50 to H1: 51200, H2: 102400, compares (DIGIC 5+, ISO 100 – 25600, H 51200, H2 102400). * New 7560-pixel RGB+IR metering sensor to aid the AF system * 45 cross-type AF points, compared to 11, with center point is the only cross-type. ** At f/8, autofocusing is only possible with the center AF point ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canon EOS
Canon EOS (Electro-Optical System) is an autofocus single-lens reflex camera (SLR) and mirrorless camera series produced by Canon Inc. Introduced in 1987 with the Canon EOS 650, all EOS cameras used 135 film, 35 mm photographic film, film until October 1996 when the Canon EOS IX, EOS IX was released using the new and short-lived Advanced Photo System, APS film. In 2000, the Canon EOS D30, D30 was announced, as the first digital photography, digital SLR designed and produced entirely by Canon. Since 2005, all newly announced EOS cameras have used digital image sensors rather than film. The EOS line is still in production as Canon's current digital SLR (DSLR) range, and, with the 2012 introduction of the Canon EOS M, Canon's mirrorless interchangeable-lens camera (MILC) system. In 2018 the system was further extended with the introduction of the EOS R camera, Canon's first full frame mirrorless interchangeable lens system. The development project was called "EOS" (Electro Optical ... [...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] |
Live-preview Digital Cameras
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 the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cameras Introduced In 2017
A camera is an optical instrument that can capture an image. Most cameras can capture 2D images, with some more advanced models being able to capture 3D images. At a basic level, most cameras consist of sealed boxes (the camera body), with a small hole (the aperture) that allows light to pass through in order to capture an image on a light-sensitive surface (usually a digital sensor or photographic film). Cameras have various mechanisms to control how the light falls onto the light-sensitive surface. Lenses focus the light entering the camera, and the aperture can be narrowed or widened. A shutter mechanism determines the amount of time the photosensitive surface is exposed to the light. The still image camera is the main instrument in the art of photography. Captured images may be reproduced later as part of the process of photography, digital imaging, or photographic printing. Similar artistic fields in the moving-image camera domain are film, videography, and ci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Time-lapse
Time-lapse photography is a technique in which the frequency at which film frames are captured (the frame rate) is much lower than the frequency used to view the sequence. When played at normal speed, time appears to be moving faster and thus ''lapsing''. For example, an image of a scene may be captured at 1 frame per second but then played back at 30 frames per second; the result is an apparent ''30 times'' speed increase. Similarly, film can also be played at a much lower rate than at which it was captured, which slows down an otherwise fast action, as in slow motion or high-speed photography. Processes that would normally appear subtle and slow to the human eye, such as the motion of the sun and stars in the sky or the growth of a plant, become very pronounced. Time-lapse is the extreme version of the cinematography technique of ''undercranking''. Stop motion animation is a comparable technique; a subject that does not actually move, such as a puppet, can repeatedly be move ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High-dynamic-range Imaging
In photography and videography, multi-exposure HDR capture is a technique that creates extended or high dynamic range (HDR) images by taking and combining multiple exposures of the same subject matter at different exposure levels. Combining multiple images in this way results in an image with a greater dynamic range than what would be possible by taking one single image. The technique can also be used to capture video by taking and combining multiple exposures for each frame of the video. The term "HDR" is used frequently to refer to the process of creating HDR images from multiple exposures. Many smartphones have an automated HDR feature that relies on computational imaging techniques to capture and combine multiple exposures. A single image captured by a camera provides a finite range of luminosity inherent to the medium, whether it is a digital sensor or film. Outside this range, tonal information is lost and no features are visible; tones that exceed the range are "burned o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NTSC
The first American standard for analog television broadcast was developed by National Television System Committee (NTSC)National Television System Committee (1951–1953), Report and Reports of Panel No. 11, 11-A, 12–19, with Some supplementary references cited in the Reports, and the Petition for adoption of transmission standards for color television before the Federal Communications Commission, n.p., 1953], 17 v. illus., diagrs., tables. 28 cm. LC Control No.:5402138Library of Congress Online Catalog/ref> in 1941. In 1961, it was assigned the designation CCIR System M, System M. In 1953, a second NTSC standard was adopted, which allowed for color television broadcast compatible with the existing stock of black-and-white receivers. It is one of three major color formats for analog television, the others being PAL and SECAM. NTSC color is usually associated with the System M. The only other broadcast television system to use NTSC color was the System J. Since the introdu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Near Field Communication
Near-field communication (NFC) is a set of communication protocols that enables communication between two electronic devices over a distance of 4 cm (1 in) or less. NFC offers a low-speed connection through a simple setup that can be used to bootstrap more-capable wireless connections. Like other "proximity card" technologies, NFC is based on inductive coupling between two so-called antennas present on NFC-enabled devices—for example a smartphone and a printer—communicating in one or both directions, using a frequency of 13.56 MHz in the globally available unlicensed radio frequency ISM band using the ISO/IEC 18000-3 air interface standard at data rates ranging from 106 to 424 kbit/s. The standards were provided by the NFC Forum. The forum was responsible for promoting the technology and setting standards and certifies device compliance. Secure communications are available by applying encryption algorithms as is done for credit cards and if they fit the crite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canon EOS 800D
The Canon EOS 800D, known in the Americas as the EOS Rebel T7i and in Japan as the EOS Kiss X9i, is a digital single-lens reflex camera announced by Canon on February 14, 2017. It is the successor to the EOS 750D (Rebel T6i) and the predecessor to the EOS 850D (Rebel T8i). The camera is aimed at amateur photographers. Main features Compared to the EOS 750D/Rebel T6i, several modifications were made, including: * New 24.2-megapixel CMOS sensor with Dual Pixel CMOS AF, instead of Hybrid CMOS AF III. * 45 cross-type AF points, compared to 19. * DIGIC 7, standard ISO 100–25600, H:51200 (DIGIC 6, ISO 100–12800, H:25600 on the 760D) * High-speed Continuous Shooting at up to 6.0 fps * Built-in Bluetooth. * 1080p at 60/ 50 fps video recording capability * Movie Electronic IS * Built-in HDR and time-lapse Time-lapse photography is a technique in which the frequency at which film frames are captured (the frame rate) is much lower than the frequency used to view the seq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canon EOS 77D
The Canon EOS 77D, known in Japan as the EOS 9000D, and in Mainland China as the EOS 770D, is a digital single-lens reflex camera announced by Canon on February 14, 2017. It has a body-only MSRP of US$899.99, which is more expensive than Canon EOS 760D, which it replaces. The camera can be purchased as a body-only, as kit with the 18-55mm IS STM lens at US$1,049, with the new 18-135mm IS USM lens at US$1,499. According to Canon's U.S. subsidiary, the camera "represents a new category of advanced amateur EOS cameras, a step above the Rebel series." However, at least one reviewer considered the 77D to be a part of the Rebel line for all practical purposes. The camera features excellent core specs and its sensor is the same as the one in the Canon 80D. The biggest differences between the 80D and 77D are that the 77D has a Digic 7 engine, Movie Electronic IS (electronic stabilisation for movies) and bluetooth, the 80D has better weather sealing, pentaprism viewfinder and has Focus M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canon EOS 80D
The Canon EOS 80D is a digital single-lens reflex camera announced by Canon on February 18, 2016. It has the same body-only MSRP as the Canon EOS 70D, which it replaces. The camera can be purchased as a body-only, as kit with the 18-55mm IS STM lens, with the new 18-135mm IS USM lens or with the EF-S 18-200mm IS. As a part of the Canon EOS two-digit line, it is the successor to the EOS 70D and is the predecessor of the EOS 90D. The camera is aimed at mid-market, semi-pro and enthusiast photographers. New features from 70D Compared to the EOS 70D, several modifications were made, including: * New 24.2-megapixel dual-pixel CMOS sensor * 45 cross-type AF points, compared to 19 for the 70D ** Of these points, 27 will support autofocus at 8 when the body is attached to one of two specific lens/teleconverter combinations (the Canon 100-400 Mark II with 1.4x III or the Canon 200-400 with 2x III). Any other lens/teleconverter combinations resulting in an aperture of 8 will only f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DIGIC 5+
Digital Imaging Integrated Circuit (often styled as "DiG!C") is Canon Inc.'s name for a family of signal processing and control units for digital cameras and camcorders. DIGIC units are used as image processors by Canon in its own digital imaging products. Several generations of DIGICs exist, and are distinguished by a version number suffix. Currently, DIGIC is implemented as an application-specific integrated circuit (ASIC) designed to perform high speed signal processing as well as the control operations in the product in which it has been incorporated. Over its numerous generations, DIGIC has evolved from a system involving a number of discrete integrated circuits to a single chip system, many of which are based around the ARM instruction set. Custom firmware for these units has been developed to add features to the cameras. DIGIC in Cameras Original DIGIC The original DIGIC was used on the PowerShot G3 (Sep 2002), Canon S1 IS (Mar 2004), A520 (Mar 2005), and ot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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