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Four Thirds logo. The Four Thirds System is a standard created by Olympus and Eastman Kodak for digital single-lens reflex camera (DSLR) design and development. [1] 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.
The Micro Four Thirds system (MFT or M4/3 or M43) (マイクロフォーサーズシステム, Maikuro Fō Sāzu Shisutemu) is a standard released by Olympus Imaging Corporation and Panasonic in 2008, [1] for the design and development of mirrorless interchangeable lens digital cameras, camcorders and lenses. [2]
The Micro Four Thirds system (MFT) of still and video cameras and lenses was released by Olympus and Panasonic in 2008; lenses built for MFT use a flange focal distance of 19.25 mm, covering an image sensor with dimensions 17.3 × 13.0 mm (21.6 mm diagonal).
The smaller sensors of Four Thirds System cameras have a crop factor of 2.0. While the crop factor of APS-C cameras effectively narrows the angle of view of long-focus (telephoto) lenses, making it easier to take close-up images of distant objects, wide -angle lenses suffer a reduction in their angle of view by the same factor.
The camera utilizes the micro four-thirds system and was announced on August 4, 2020, and launched on September 18 of the same year. [2] It is the first OM-D camera to feature a flip-down LCD monitor, and the first E-M10 model to include a 20 Megapixel live MOS sensor. It continues the Olympus model of including image stabilization in-body.
The Micro Four Thirds (MFT) system design standard was jointly announced in 2008 [7] by Olympus and Panasonic, as a further evolution of the similarly named predecessor Four Thirds System [8] pioneered by Olympus. The Micro Four Thirds system standard uses the same sized sensor as the original Four Thirds system, which is half the size of a ...
The E-510 body and lens mount conform to the "Four Thirds System" standard, providing compatibility with other lenses for that system. Four-Thirds is a digital SLR standard using a crop factor of 2x; this means that Four-Thirds lenses can be made smaller and cheaper, but that the cameras exhibit somewhat worse high ISO performance.
The Panasonic Lumix DMC-GH2 is a digital camera with HD video recording capability that is part of the Micro Four Thirds system.Though commonly referred to as a DSLR (digital single-lens reflex) camera, it has no mirror or optical viewfinder, but has instead both a fold-out LCD screen and a (somewhat higher resolution) electronic viewfinder.