The Canon EOS-1D X is a professional digital SLR camera body by Canon Inc. It succeeded the company's previous flagship Canon EOS-1Ds Mark III and the Canon EOS-1D Mark IV. It was announced on 18 October 2011.It was released in March 2012 with a suggested retail price of US$6,799.00 (body only) and a suggested retail price of £5,299 in the United Kingdom.The camera is supplemented by the Canon EOS-1D C, a movie-oriented camera that shares most of its still photographic features with the 1D X. The 1D C was announced in April 2012 and released in March 2013.In CES (January) 2014, Canon released firmware version 2.0.3 with significant improvements:
Initial AF point selection and 61-point auto selection AF synchronization
AF point switching according to camera orientation
Improved low-light performance
Expanded minimum shutter speed in auto ISOOn 1 February 2016, Canon introduced the Canon EOS-1D X Mark II as the successor to the EOS-1D X.