Lastly, Canon has updated its flagship DSLR, the EOS 1D X Mark III. Firmware version 1.3.0 addresses the following changes and improvements:

  • Enables 2nd curtain shooting sync during radio transmission wireless flash shooting when the Speedlite EL-1 flash is attached to the camera.
  • Enables manual flash output (excluding high-speed sync and optical transmission wireless flash shooting) to be selected and set up to 1/8192 from the camera menu screen when the Speedlite EL-1 flash is attached to the camera.
  • Improves compatibility of HEIF images recorded in the camera with MIAF (Multi-Image Application Format) standards.
  • Fixes the phenomenon that may result in the occurrence of time-out under certain conditions during FTP transfer.

You can download firmware version 1.3.0 for the EOS 1D X Mark III on Canon’s product page.