Canon EOS
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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., UK: /ˈiː.ɒs/, US: /ˈiː.ɑːs/), although some spell out the letters, reading it as an initialism. 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. Between 2006 and 2008, Canon's market share in DSLR cameras decreased from nearly 50% worldwide to near-parity with Nikon DSLRs, at 38% and 37%, respectively.[1] While in 2010, Canon rose to a share of 44.5% in the DSLR market, jumping far ahead of Nikon's 29.8% and Sony's 11.9%, becoming the worldwide leader of DSLR manufacturers.[2] At the heart of the system is the EF lens mount, which replaced the previous FD lens mount.
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Canon EOS 1Ds Mark III
The EOS-1Ds Mark III is the seventh Canon professional EOS-1D series digital SLR, although only the third of the 's' suffix sub-category which indicates a full frame sensor. Three years since the last EOS-1Ds, the Mark II, the Mark III pushes digital SLR resolution over the twenty megapixel barrier with specifically twenty-one-point-one million pixels (5616 x 3744) on its 36 x 24 mm (full 35 mm frame) sensor. Canon also claims to have increased the 'light gathering efficiency' of the sensor by reducing the amount of (wasted) space between micro lenses, hence despite the resolution increase the Mark III still provides sensitivity up to ISO 3200 (with boost enabled).
As well as increasing resolution Canon has pushed continuous shooting up a step with five frames per second over the Mark II's four frames per second. This means that at full speed the two DIGIC III image processors are dealing with an impressive 185 MB/sec. Other improvements include the larger screen, Live View, a fourteen-bit A/D converter and fourteen-bit RAW files, UDMA Compact Flash support (up to 45 MB/sec) and a whole range of features (such as dual storage slots and Picture Styles) inherited from the EOS-1D Mark III.
From a build, function and usability point of view the EOS-1Ds Mark III is identical to the EOS-1D Mark III apart from the full frame (36 x 24 mm) sensor, (naturally) larger viewfinder and UDMA support for Compact Flash cards.
Canon EOS 350D
The 350D is an upgraded version of the popular Canon EOS 300D, which was the first sub-US$1000 digital SLR, introduced in 2003[citation needed]. There are some differences between the 350D and the 300D[2]. Many of the features 'locked out' by Canon in the 300D were unlocked in this camera, so it has been subject to less unofficial 'hacking' to release the locked features. In addition to these unlocked features, a number of other improvements have been made. Some of the most significant upgrades include:
- 8.0 megapixels (up from 6.3)
- DiG!C II image processor
- Faster power on times (0.2 seconds)
- Compact Flash type II capability (includes microdrives)
- 14 (JPEG) or 4 (RAW) frames continuous shooting buffer
- Smaller and lighter body
- Increased function customization
- E-TTL II flash algorithm (improvement over the old E-TTL flash algorithm)
- Mirror lock-up
- Selectable AF and metering modes
- USB 2.0 interface (improved from the slower USB 1.1 interface on the 300D)
Canon EOS 5D
The EOS 5D is a 12.8 megapixel digital single-lens reflex (DSLR) camera body produced by Canon. The EOS 5D was announced by Canon on 22 August 2005,[1] and at the time was priced above the EOS 20D but below the EOS-1D Mark II and EOS-1Ds Mark II in Canon's EOS digital SLR series. The camera accepts EF lens mount lenses.
The EOS 5D is notable for being the first full-frame DSLR camera with a standard body size (as opposed to the taller, double-grip "professional" camera body style).[citation needed] It is also notable for its price, suggested at $3299 USD,[1] which set a significant new low price point for full-frame DSLRs; its only full-frame competition at the time was the Canon 1Ds Mark II, which cost more than twice as much.[2]
On 17 September 2008, Canon announced the camera's successor: the Canon EOS 5D Mark II.[3]
On 2 March 2012, Canon announced the successor to the Canon EOS 5D Mark II. The latest version is called the Canon EOS 5D Mark III.[4]
Canon EOS 20D
