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Exchangeable image file format is a standard that specifies the formats for images, sound, and ancillary tags used by digital cameras, scanners and other systems handling image and sound files recorded by digital cameras. The specification uses the following existing file formats with the addition of specific metadata tags: JPEG discrete cosine transform (DCT) for compressed image files, TIFF Rev. 6.0 for uncompressed image files, and RIFF WAV for audio files. It is not used in JPEG 2000 or GIF.
The Foveon X3 sensor is an image sensor for use in digital cameras, designed by Foveon, Inc. and manufactured by Dongbu Electronics. It uses an array of photosites, each of which consists of three vertically stacked photodiodes, organized in a two-dimensional grid. Because different wavelengths of light penetrate silicon to different depths, each of the three stacked photodiodes has a different spectral sensitivity curve, allowing it to respond to different wavelengths of light. The signals from the three photodiodes are then processed, resulting in additive data for the three primary colors: red, green, and blue.
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. 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.
Color correction is a process used in stage lighting, photography, television, cinematography, and other disciplines, which uses color gels, or filters, to alter the overall color of the light. Typically the light color is measured on a scale known as color temperature, as well as along a green–magenta axis orthogonal to the color temperature axis.
The Canon EOS-1D is a professional digital single-lens reflex camera launched in November 2001 as part of Canon's flagship EOS-1 series. It was the first digital camera in the EOS-1 line, succeeding Canon final flagship film camera, the 1V. It was also the first professional-level digital camera developed and released entirely by Canon, the previous D2000 being a collaborative effort with Kodak. It has a 1.3x crop factor with a CCD image sensor sourced from Panasonic. The camera shares its body design with the Canon EOS-1V 35mm camera. It was complemented by the slower, higher-resolution 1Ds in 2002 and succeeded by the 1D Mark II in April 2004.
The merits of digital versus film photography were considered by photographers and filmmakers in the early 21st century after consumer digital cameras became widely available. Digital photography and digital cinematography have both advantages and disadvantages relative to still film and motion picture film photography. In the 21st century, photography came to be predominantly digital, but traditional photochemical methods continue to serve many users and applications.
Digital Photography Review, also known as DPReview, is a website about digital cameras and digital photography, established in November 1998. The website provides comprehensive reviews of digital cameras, lenses and accessories, buying guides, user reviews, and forums for individual cameras, as well as general photography forums. The website also has a database with information about individual digital cameras, lenses, printers and imaging applications. Originally based in London, Digital Photography Review and most of its team relocated to Seattle, Washington, in 2010. It is currently owned by Amazon.
The Minolta Dimage 7, 7i, 7Hi series is a "pro-sumer" line of digital electronic viewfinder cameras from Minolta. These are also known as bridge digital cameras. They are capable of capturing images in the 5-megapixel range.
Note: For a quick understanding of numbers like 1/2.3, skip to table of sensor formats and sizes. For a simplified discussion of image sensors see image sensor.
A color chart or color reference card is a flat, physical object that has many different color samples present. They can be available as a single-page chart, or in the form of swatchbooks or color-matching fans.
The Micro Four Thirds system is a standard released by Olympus and Panasonic in 2008, for the design and development of mirrorless interchangeable lens digital cameras, camcorders and lenses. Camera bodies are available from Blackmagic, DJI, JVC, Kodak, Olympus, Panasonic, Sharp, and Xiaomi. MFT lenses are produced by Cosina Voigtländer, DJI, Kowa, Kodak, Mitakon, Olympus, Panasonic, Samyang, Sharp, Sigma, SLR Magic, Tamron, Tokina, Veydra, and Xiaomi, amongst others.
The Nikon D3S is a 12.1-megapixel professional-grade full frame (35mm) digital single-lens reflex camera (DSLR) announced by Nikon Corporation on 14 October 2009. The D3S is the fourth camera in Nikon's line to feature a full-frame sensor, following the D3, D700 and D3X. It is also Nikon's first full-frame camera to feature HD (720p/30) video recording. While it retains the same number of pixels as its predecessor, the imaging sensor has been completely redesigned. Nikon claims improved ultra-high image sensor sensitivity with up to ISO 102400, HD movie capability for extremely low-lit situations, image sensor cleaning, optimized workflow speed, improved autofocus and metering, enhanced built-in RAW processor, quiet shutter-release mode, up to 4,200 frames per battery charge and other changes compared with the D3. It was replaced by the D4 as Nikon's high speed flagship DSLR.
A mirrorless interchangeable-lens camera (MILC), frequently simply mirrorless camera, also called DSLM, and sometimes also called EVIL features a single, removable lens and uses a digital display system rather than an optical viewfinder. The word "mirrorless" indicates that the camera does not have a reflex mirror or optical viewfinder like a conventional digital single-lens reflex camera (DSLR), but an electronic viewfinder which displays what the camera image sensor sees.
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.
The following table compares general and technical features of Nikon DSLR cameras.
Panasonic Lumix DMC-GX1 is a micro four thirds camera which was announced 7 November 2011.
The Pentax K-3 is a 24-megapixel Pentax high-end digital single-lens reflex camera with an APS-C sensor, announced on 7 October 2013. The Pentax K-3 is the successor to both the K-5 II and K-5 IIs models, which have a 16-megapixel sensor. The K-5 II had an optical low pass filter or anti-aliasing (AA) filter that can prevent the appearance of moire patterning on the captured image. This filter reduces the sharpness of the image, so Pentax also produced the K-5 IIs which omitted this filter. In the K-3, Pentax obviated the need for providing two separate models by including a selectable AA filter "simulator". This mechanism vibrates the sensor when switched on, slightly blurring the image in a way that replaces the function of the optical AA filter, providing the same benefit as the filter in the K-5 II and other cameras with an optical AA filter. When the AA simulator is disabled, the sensor records a sharper image, as in the K-5 IIs.
The Sony NEX-C3 is a digital camera announced 8 June 2011. It is a mirrorless interchangeable lens camera with a compact form factor and APS-C size image sensor. The Sony camera was manufactured in Black, Silver, and Pink. This camera was unfairly compared against later models such as the NEX-5R using a body only weight of 225g compared the NEX-5R battery and card inclusive weight of 276g, which lead to the mistaken claim that the NEX-C3 was 51g lighter.
The Samsung NX1100 is a digital compact camera produced and marketed by Samsung since April 2013 as an entry level camera with interchangeable lenses. It is a 20.3 Megapixel mirrorless interchangeable lens camera using the Samsung NX-mount.
The Sony α7R IV is a full-frame mirrorless interchangeable-lens camera manufactured by Sony. It was announced on 16 July 2019 as the successor to the Sony α7R III launched two years prior.
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