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Wide-angle Lens
In photography and cinematography, a wide-angle lens is a Photographic lens, lens covering a large angle of view. Conversely, its focal length is substantially smaller than that of a normal lens for a given film plane. This type of lens allows more of the Scene (perception), scene to be included in the photograph, which is useful in architectural, interior, and landscape photography where the photographer may not be able to move farther from the scene to photograph it. Another use is where the photographer wishes to emphasize the difference in size or distance between objects in the foreground and the background; nearby objects appear very large and objects at a moderate distance appear small and far away. This exaggeration of relative size can be used to make foreground objects more prominent and striking, while capturing expansive backgrounds. A wide-angle lens is also one that projects a substantially larger image circle than would be typical for a standard design lens of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canon 17-40 F4 L Lens
Canon or Canons may refer to: Arts and entertainment * Canon (fiction), the material accepted as officially written by an author or an ascribed author * Literary canon, an accepted body of works considered as high culture ** Western canon, the body of high culture literature, music, philosophy, and works of art that is highly valued in the West * Canon of proportions, a formally codified set of criteria deemed mandatory for a particular artistic style of figurative art * Canon (music), a type of composition * Canon (hymnography), a type of hymn used in Eastern Orthodox Christianity. * Canon (album), ''Canon'' (album), a 2007 album by Ani DiFranco * Canon (film), ''Canon'' (film), a 1964 Canadian animated short * Canon (manga), ''Canon'' (manga), by Nikki * Shakespeare's plays#Canonical plays, Canonical plays of William Shakespeare * The Canon (Natalie Angier book), ''The Canon'' (Natalie Angier book), a 2007 science book by Natalie Angier * The Canon (podcast), ''The Canon'' ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
135 Film
file:135film.jpg, 135 film. The film is wide. Each image is 24×36 mm in the most common "small film" format (sometimes called "double-frame" for its relationship to the "single-frame" 35 mm movie format or full frame after the introduction of 135 sized digital sensors; confusingly, "full frame" was also used to describe the Full frame (cinematography), full gate of the movie format half the size). file:LEI0060 186 Leica I Sn.5193 1927 Originalzustand Front-2 FS-15.jpg, Leica I, 1927, the first successful camera worldwide for 35 cine film 135 film, more popularly referred to as 35 mm film or 35 mm, is a format of photographic film with a film gauge of loaded into a standardized type of magazine (also referred to as a cassette or cartridge) for use in 135 film cameras. The term 135 was introduced by Kodak in 1934 as a designation for 35 mm film specifically for still photography, perforated with Kodak Standard perforations. It quickly grew in populari ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nikon D4S
The Nikon D4S is a full frame professional DSLR camera announced by Nikon Corporation on February 25, 2014 to succeed the D4 as its flagship DSLR. The D4S offers a number of improvements over its predecessor including a new image sensor, new image processor, new battery, improved ergonomics and expanded ISO range. Additionally, improved auto focus (AF) algorithms and a new AF Tracking mode were introduced together with a new option of RAW image capture in full resolution (16MP) or a "Small" file (4MP). In May 2014, the D4S received a Technical Image Press Association (TIPA) 2014 Award in the category of "Best Digital SLR Professional". In August 2014, the D4S received a European Imaging and Sound Association (EISA) award in the category "European Professional DSLR Camera 2014-2015". The D4S was superseded by the Nikon D5, announced on January 6, 2016. The D4S was discontinued in December 2016. Features While the D4S retains many features of the Nikon D4, it offers the f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canon EOS 6D
The Canon EOS 6D is a 20.2-megapixel full-frame CMOS digital single-lens reflex camera made by Canon. The EOS 6D was publicly announced on 17 September 2012, one day before the start of the Photokina 2012 trade show. It was released in late November 2012 and offered at that time as a body only for a suggested retail price of or in a package with an EF 24-105mm f/4L IS USM zoom lens for a suggested retail price of . It was superseded by the EOS 6D Mark II in 2017. Features There are 2 versions of EOS 6D. EOS 6D (N) and EOS 6D (WG): The EOS 6D (WG) is the first Canon DSLR to feature GPS functions and built in Wi-Fi capabilities, which geotag images and allow files to be uploaded directly to Facebook, YouTube, or Canon Image Gateway; transferred to external devices; or sent to be printed on a Wi-Fi-enabled Canon printer. The Wi-Fi capabilities also allow remote control and viewing via many smartphones. These features are not available in the (N) version of the camera. We ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canon EOS 5D Mark III
The Canon EOS 5D Mark III is a professional-grade 22.3 megapixel full-frame digital single-lens reflex (DSLR) camera made by Canon. Succeeding the EOS 5D Mark II, the Mark III was announced on 2 March 2012. This date coincided with the 25th anniversary of the announcement of the first camera in the EOS line, the EOS 650, and was also Canon's 75th anniversary. The Mark III went on sale later in March with a retail price of $3,499 in the US, £2999 in the UK, and €3569 in the Eurozone. On 25 August 2016, Canon announced the camera's successor, the Canon EOS 5D Mark IV. Features New features over the EOS 5D Mark II are: * Resolution increased to 22.3 effective megapixels full-frame CMOS sensor (5D Mark II has 21.0 megapixels) * DIGIC 5+ image processor (as opposed to the DIGIC 4) * Maximum ISO speed increased to ISO 25600 (50, 51200, 102400 as optional expanded settings) – Compared to ISO 6400 (50, 12800, and 25600 as optional expanded settings) * New 61-point autofocus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canon EOS 5DS
The Canon EOS 5DS and EOS 5DS R (marketed as the EOS 5Ds and EOS 5Ds R in Japan) are two closely related digital SLR cameras announced by Canon on February 6, 2015. Both are professional full-frame cameras with 50.3-megapixel sensors, the highest of any full-frame camera at the time of announcement. The only difference between the two models is that the sensor of the "R" version includes an optical filter that cancels out the effects of a standard optical low-pass filter. This distinction is roughly similar to that between Nikon's now-replaced D800 and D800E (with the E having a self-cancelling filter). Canon stated that both the 5DS and 5DS R will not replace the older EOS 5D Mark III; therefore, both the 5DS and 5DS R will have their new positions in Canon's DSLR camera lineup. At the time of announcement, estimated prices were US$3,699.00 and US$3,899.00 (EOS 5DS and EOS 5DS R), with announced date of availability, through authorized Canon ret ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Canon EOS-1D X
The Canon EOS-1D X is a professional digital SLR camera body by Canon Inc. It succeeded the company's previous flagship Canon EOS-1Ds Mark III and the Canon EOS-1D Mark IV. It was announced on 18 October 2011. It was released in March 2012 with a suggested retail price of (body only) and a suggested retail price of in the United Kingdom. The camera is supplemented by the Canon EOS-1D C, a movie-oriented camera that shares most of its still photographic features with the 1D X. The 1D C was announced in April 2012 and released in March 2013. In CES (January) 2014, Canon released firmware version 2.0.3 with significant improvements: * Initial AF point selection and 61-point auto selection AF synchronization * AF point switching according to camera orientation * Improved low-light performance * Expanded minimum shutter speed in auto ISO On 1 February 2016, Canon introduced the Canon EOS-1D X Mark II as the successor to the EOS-1D X. Features The Canon EOS-1D X is an 18.1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Film Format
A film format is a technical definition of a set of standard characteristics regarding image capture on photographic film for still images or film stock for filmmaking. It can also apply to projected film, either slides or movies. The primary characteristic of a film format is its size and shape. In the case of motion picture film, the format sometimes includes audio parameters. Other characteristics usually include the film gauge, pulldown method, lens anamorphosis Anamorphosis is a distorted projection that requires the viewer to occupy a specific vantage point, use special devices, or both to view a recognizable image. It is used in painting, photography, sculpture and installation, toys, and film speci ... (or lack thereof), and film gate or projector aperture dimensions, all of which need to be defined for photography as well as projection, as they may differ. Motion picture film formats * 35 mm movie film Digital camera formats Photographic film formats ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Image Sensor
An image sensor or imager is a sensor that detects and conveys information used to form an image. It does so by converting the variable attenuation of light waves (as they refraction, pass through or reflection (physics), reflect off objects) into signal (electrical engineering), signals, small bursts of electric current, current that convey the information. The waves can be light or other electromagnetic radiation. Image sensors are used in electronics, electronic imaging devices of both analogue electronics, analog and digital electronics, digital types, which include digital cameras, camera modules, camera phones, optical mouse devices, medical imaging equipment, night vision equipment such as thermography, thermal imaging devices, radar, sonar, and others. As technological change, technology changes, electronic and digital imaging tends to replace chemical and analog imaging. The two main types of electronic image sensors are the charge-coupled device (CCD) and the active-pixel s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Full-frame Vs APS-C
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Full frame may refer to: * 35mm format * Full frame (cinematography) * Full-frame type charge-coupled device (CCD) image sensor See also * Full-frame digital SLR * Full-frame mirrorless interchangeable-lens camera A mirrorless camera (sometimes referred to as a mirrorless interchangeable-lens camera (MILC) or digital single-lens mirrorless (DSLM)) is a digital camera which, in contrast to DSLRs, does not use a mirror in order to ensure that the image ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fisheye Lens
A fisheye lens is an ultra wide angle lens, ultra wide-angle lens that produces strong Distortion (optics), visual distortion intended to create a wide panorama, panoramic or Sphere#Hemisphere, hemispherical image. Fisheye lenses achieve extremely wide angle of view, angles of view, well beyond any rectilinear lens. Instead of producing images with straight lines of perspective (rectilinear lens, rectilinear images), fisheye lenses use a special mapping ("distortion"; for example: Lambert azimuthal equal-area projection, equisolid angle, see below), which gives images a characteristic convex non-rectilinear appearance. The term ''fisheye'' was coined in 1906 by American physicist and inventor Robert W. Wood based on how a fish would see an ultrawide hemispherical view from beneath the water (a phenomenon known as Snell's window). Their first practical use was in the 1920s for use in meteorology to study cloud formation giving them the name ''whole-sky lenses''. The angle of view ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Barrel Distortion
In geometric optics, distortion is a deviation from rectilinear projection; a projection in which straight lines in a scene remain straight in an image. It is a form of optical aberration that may be distinguished from other aberrations such as spherical aberration, coma, chromatic aberration, field curvature, and astigmatism in a sense that these impact the image sharpness without changing an object shape or structure in the image (e.g., a straight line in an object is still a straight line in the image although the image sharpness may be degraded by the mentioned aberrations) while distortion can change the object structure in the image (so named as distortion). Radial distortion Although distortion can be irregular or follow many patterns, the most commonly encountered distortions are radially symmetric, or approximately so, arising from the symmetry of a photographic lens. These ''radial distortions'' can usually be classified as either ''barrel'' distortions or ''pincus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
