Thursday, October 17, 2013

Canon EOS Model and Lens

Canon EOS Information: The Canon EOS (or) Electro-Optical System autofocus 35 mm film and digital SLR camera system was introduced in 1987 with the Canon EOS 650 Model and is still in production as Canon's current DSLR and recently released Canon EOS M Model mirrorless interchangeable-lens camera or MILC systems. The acronym "EOS" was chosen for Eos, the Titan Goddess of dawn in Greek mythology, and is often pronounced as a word , although some spell out the letters, reading it as an initialism. It competes primarily with the Nikon F series Models and its successors, as well as autofocus SLR systems from 1. Olympus Corporation, 2.Pentax, 3. Sony/Minolta, 4. Panasonic/Leica. Canon has released no fewer than 40 EOS SLR camera models,first starting with the introduction of the EOS 650 in 1987. In the 1990s, Canon worked with Kodak to produce digital camera bodies, starting with the EOS DCS 3 in 1995. The first digital EOS SLR camera wholly designed and manufactured by Canon is the EOS D30, released in 2000. Canon sold two EOS cameras designed to use the APS film format, the EOS IX and the EOS IX Lite. Canon also sold a manual-focus camera, the Canon EF-M, which uses the same EF lens mount as the EOS cameras. It comes with all the automatic and manual exposure functions but lacks autofocus. However, it comes equipped with a split-screen/microprism focusing screen for precise manual focusing.
Eye-controlled focusing: Through the tracking of eyeball movements, EOS cameras equipped with eye-controlled focusing (ECF) are able to choose the appropriate autofocus point based on where the user is looking in the viewfinder frame. ECF comes especially useful in sports photography where the subject may shift its position in the frame rapidly.
Quick control dial: Most prosumer and professional level EOS cameras feature a large quick control dial (QCD) on the camera back. Allowing easy operation of the camera using the thumb, the QCD is used for quick access to often-used functions that may otherwise require a more complicated procedure of button-presses and dial-clicks

Multi-point autofocus system: Currently, top-line EOS cameras have 61 autofocus (AF) points, the most in their class. Two Canon cameras have this system—the EOS 5D Mark III, on sale since March 2012,[3] and the EOS-1D X, announced in October 2011 and originally scheduled for sale in April 2012,[4] but delayed until June 2012.[5] The release of the 5D MkIII gave Canon the lead once again in this category; previously, its top-line cameras had 45 AF points,[6] which led the industry until Nikon released its D3 and D300 DSLRs with 51-point AF systems. A higher number of AF points increases the chances of a sharply-focused photograph in situations where the subject travels across the frame at high speeds (e.g., sports, birds). The number, type, features and performance of autofocus point array systems is likely to continue to evolve.

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