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Factory Update: EOS-1D C: Firmware Version 1.4.0


Thank you for using Canon products.


Firmware Version 1.4.0 incorporates the following improvements and fixes:

Fixes a phenomenon which occurs when the "Shutter button half-press" menu item, configured in "C.Fn5: Operation">"Custom Controls Menu", is set to metering start only; depending on when the shutter button is half-pressed, it may initiate AutoFocus.

Firmware Version 1.4.0 includes all improvements and fixes provided in previous firmware versions.


  • As a result of this fix, cameras with Firmware Version 1.3.9 (or later) will not be able to read the “camera settings file” created with cameras running Firmware Version 1.3.5 (or earlier). If you require the “camera settings file”, please create it after updating to firmware version 1.3.9 (or later).


Canon USA will perform this firmware update on the EOS-1D C Cinema EOS Camera free of charge. Shipping and handling charges may apply. Please contact the Canon Customer Support Center for details.

This information is for residents of the United States and Puerto Rico only. If you do not reside in the USA or Puerto Rico, please contact the Canon Customer Support Center in your region.

Please register the EOS-1D C. By registering, we will be able to notify you via email when future firmware updates become available for download. If you already registered, please ensure you are opted-in to receive the notification.

Thank you,

Customer Support Operations
Canon U.S.A., Inc

Contact Information for Inquiries
Canon Customer Support Center
Phone: 1-855-CINE-EOS (toll free)
TDD: 1-866-251-3752

Email: CinemaEOS@cits.canon.com
Support options and hours of operation: www.usa.canon.com/support