Canon is excited to announce a new Canon EOS 1DX firmware update for the EOS-1DX Digital SLR Camera which further extends the capabilities of its powerful autofocus system and adds AF Point illumination during AI Servo AF and cross-type AF for maximum apertures as small as F8.

The Canon EOS 1DX Firmware update 1.1.1 can be found here:
http://www.usa.canon.com/cusa/professional/standard_display/EOS1DX_firmware