The Four Thirds System is a standard created by Olympus and Eastman Kodak for digital single-lens reflex camera (DSLR) design and development. Four Thirds refers to both the size of the image sensor (4/3") as well as the aspect ratio (4:3). The Olympus E-1 was the first Four Thirds DSLR, announced and released in 2003. In 2008, Olympus and Panasonic began publicizing the Micro Four Thirds system, a mirrorless camera system which used the same sensor size; by eliminating the reflex mirror, the Micro Four Thirds cameras were significantly smaller than the Four Thirds cameras. The first Micro Four Thirds cameras were released in 2009 and the final Four Thirds cameras were released in 2010; by that time, approximately 15 Four Thirds camera models had been released by Olympus and Panasonic in total. The Four Thirds system was quietly discontinued in 2017, six years after the final cameras were released.
A digital single-lens reflex camera 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.
Image stabilization (IS) is a family of techniques that reduce blurring associated with the motion of a camera or other imaging device during exposure.
The Olympus E-400 is a digital single-lens reflex camera launched by Olympus on 14 September 2006, using the Four Thirds System lens mount standard. This 10 megapixel camera could be compared to other DSLRs unveiled during the summer of 2006 with comparable pixel count and price range: the Sony α 100, the Nikon D80, the Canon EOS 400D and the Pentax K10D.
The Olympus E-510 is a 10-megapixel digital single-lens reflex (DSLR) camera oriented to the "prosumer" or "hobbyist" market.
The Olympus E-410 is a 10 megapixel digital single-lens reflex (DSLR) camera intended be the smallest and lightest DSLR on the market. Announced in March 2007 to succeed the E-400, it adds a live preview function and a new "Olympus TruePic III" processing chip that is claimed to provide better performance.
The Pen or PEN series is an Olympus camera brand. It was used on analog half-frame compact and SLR models from 1959 until the early 1980s. In 2009, Olympus released the PEN E-P1, a digital mirrorless interchangeable-lens camera, which opened the range of Digital PEN models, which are still sold today. Olympus Corporation's camera division since has been bought by Japan Industrial Partners, and run under the OM Digital Solutions name. They continue to run the Digital PEN series.
The Micro Four Thirds system is a standard released by Olympus Imaging Corporation 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, OM System, Panasonic, Sharp, and Xiaomi. MFT lenses are produced by Cosina Voigtländer, Kowa, Kodak, Mitakon, Olympus, Panasonic, Samyang, Sharp, Sigma, SLR Magic, Tamron, Tokina, TTArtisan, Veydra, Xiaomi, Laowa, Yongnuo, Zonlai, Lensbaby, Venus Optics and 7artisans amongst others.
A mirrorless camera is a digital camera which, in contrast to DSLRs, does not use a mirror in order to ensure that the image presented to the photographer through the viewfinder is identical to that taken by the camera. They have come to replace DSLRs, which have historically dominated interchangeable lens cameras. Other terms include electronic viewfinder interchangeable lens (EVIL) cameras and compact system cameras (CSCs).
The Olympus OM-D E-M5, announced in February 2012, is a Micro Four Thirds compact mirrorless interchangeable lens camera. In style and name it references the Olympus OM series of film SLR cameras, but it is not an SLR camera. The successor is the Olympus OM-D E-M5 Mark II.
The Olympus PEN E-PL5, announced on September 17, 2012 is Olympus Corporation's tenth camera that adheres to the Micro Four Thirds (MFT) system design standard. The E-PL5 succeeds the Olympus PEN E-PL3, and was announced in concert with one other model, the Olympus PEN E-PM2.
The Sony α7, α7R, α7S and α7C are four closely related families of full-frame mirrorless interchangeable-lens cameras. The first two were announced in October 2013, the third in April 2014 and the fourth in September 2020. They are Sony's first full-frame mirrorless interchangeable lens cameras and share the E-mount with the company's smaller sensor NEX series.
The Olympus OM-D E-M10 is a third model in the OM-D series of compact, mirrorless, interchangeable-lens cameras. It is of the Micro Four Thirds type that was introduced in January 2014.
The Olympus OM-D E-M10 Mark II is a digital mirrorless system camera announced by Olympus Corporation on August 25, 2015.
The Olympus PEN-F is a mirrorless interchangeable-lens camera in the Micro Four Thirds system, released in 2016. It is the part of the digital PEN series. The PEN-F pays tribute to the similarly named PEN F half-frame 35mm film SLR camera from 1963.
The Olympus OM-D E-M1X is a professional mirrorless interchangeable-lens camera announced by Olympus Corporation in January 2019.
Pixel shift is a method in digital cameras for producing a super resolution image. The method works by taking several images, after each such capture moving ("shifting") the sensor to a new position. In digital colour cameras that employ pixel shift, this avoids a major limitation inherent in using Bayer pattern for obtaining colour, and instead produces an image with increased colour resolution and, assuming a static subject or additional computational steps, an image free of colour moiré. Taking this idea further, sub-pixel shifting may increase the resolution of the final image beyond that suggested by the specified resolution of the image sensor.
The Olympus OM-D E-M10 Mark IV is the fourth iteration of the entry-level model in the OM-D series of mirrorless interchangeable-lens cameras produced by Olympus. The camera utilizes the micro four-thirds system and was announced on August 4, 2020, and launched on September 18 of the same year.
The Olympus OM-D E-M1 Mark III is the third iteration of the flagship camera in the series of OM-D mirrorless interchangeable-lens cameras produced by Olympus on the Micro Four-Thirds system. Released on February 28, 2020, it replaced the Olympus OM-D E-M1 Mark II.
The Olympus OM-D E-M5 Mark III is the third iteration of the enthusiast-level mirrorless interchangeable-lens camera produced by Olympus on the Micro Four-Thirds system. The camera is the successor to the Olympus OM-D E-M5 Mark II and was released on November 15, 2019.
