The Canon EOS (Electro-Optical System) autofocus 35 mm film and digital SLR camera system was introduced in 1987 with the Canon EOS 650 and is still in production as Canon's current dSLR system. The acronym EOS was chosen for Eos, the Titan Goddess of dawn in Greek mythology, and is often pronounced as a word (i.e., EE-oss), although some spell out the letters, reading it as an initialism. There is no officially correct pronunciation.
It competes...
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The Canon EOS (Electro-Optical System) autofocus 35 mm film and digital SLR camera system was introduced in 1987 with the Canon EOS 650 and is still in production as Canon's current dSLR system. The acronym EOS was chosen for Eos, the Titan Goddess of dawn in Greek mythology, and is often pronounced as a word (i.e., EE-oss), although some spell out the letters, reading it as an initialism. There is no officially correct pronunciation.
It competes primarily with the Nikon F series and its successors, as well as autofocus SLR systems from Olympus Corporation, Pentax, Sony/Minolta, and Panasonic/Leica. In most countries, EOS cameras have the largest market share of SLR cameras.
At the heart of the system is the EF lens mount, which replaced the previous FD lens mount.
The bayonet-style EF lens mount is at the center of the EOS camera system. Breaking compatibility with the earlier FD mount, it was designed with no mechanical linkages between moving parts in the lens and in the camera....
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