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Firmware Update: RF 800mm f/5.6L IS USM Firmware Version 1.0.4

Thank you for using Canon products.

Affected Products
RF 800mm f/5.6L IS USM

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Changes in firmware:

The firmware (version 1.0.4) incorporates the following enhancement:
  1. Improves the Panning Assist control feature for 2nd and subsequent images captured during continuous shooting when using the electronic shutter.
Firmware Version 1.0.4 is for lenses with firmware up to Version 1.0.3. If the lens’ firmware is already Version 1.0.4, it is not necessary to update the firmware.

Download Firmware Version 1.0.4 by clicking this link. Then select the Firmware Tab.

Preparations for the Firmware Update:
In the folder you downloaded are the firmware (XXXXXXXX.afu / file size: XX,XXX,XXX bytes) and instructions on the firmware update procedures (a PDF file in five languages: Japanese, English, French, Spanish, and Simplified Chinese). Before starting the firmware update operations, please be sure to carefully review the instructions to confirm your understanding of the firmware update procedures.

Contact Information
Should you have any questions about the announcement, please contact the Authorized Service Facility in your area or you may contact the Call Center within your region.