EOS R3 Firmware Version 1.9.0

Firmware Version 1.9.0 incorporates the following fixes and enhancements:

1. Improves security features. A password must be set initially.
• Adds the ability to review the history of any changes made to the password, network information, or other settings.
*For more information, please refer to the 'Setting a Password' section in the Advanced User Guide on cam.start.canon.

2. Enables firmware updates to be performed when the camera is connected to the internet and new firmware is made available on Canon servers.

3. Adds a function that simultaneously protects images when they are rated.

4. Adds the ability to use up to 8TB of CFexpress cards.
Note:
- Cards larger than 8TB require low-level formatting by the camera.
- Cards larger than 8TB are treated as 8TB cards.
- Cards larger than 2TB cannot be used for firmware updating.

5. Adds to lower the image capture frame rate to help prevent overheating when connected to CR-A100 in extended remote shooting.

6. When transferring images with voice memos via FTP, the transfer order priority has now changed with voice memo (Wav) file being sent first followed by image file.
If a voice memo is added to an image queued for transfer, the image and voice memo are now sent last.

7. Improves AF tracking performance during zooming in still photo shooting with compatible lenses.
*Compatible lenses (as of July 16, 2025):
RF24-105mm F2.8 L IS USM Z (ver.1.1.0 or later)
RF70-200mm F2.8 L IS USM Z
RF100-300mm F2.8 L IS USM (ver.1.0.8 or later)

8. Adds the ability to enable [Exposure Simulation] when a flash unit is attached.

9. Fixes an issue in which Err70 may occur during Bluetooth communication due to interference from other Bluetooth devices.

10. Fixes an issue in which Err70 may occur when repeatedly shooting in the "High-speed continuous shooting +" mode.

11. Fixes an issue in which image stabilization may stop working when using an EF lens.

12. Fixes an issue in which HDMI output may momentarily stop when [Screen Off] is activated in the Power Saving settings.

If the camera's firmware is already VersionVer1.9.0, it is not necessary to update the firmware.

The User Manual on our website has been updated accordingly. Please download the User Manual as well as the latest firmware. You can download it from the official website.

Q&A Section:
Preparations for the firmware update:

In the folder you downloaded are the firmware (EOSR3190.FIR / file size: 87890608 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.

Firmware download link:
https://www.canon.com.au/cameras/eos-r3/support?option=drivers