Canon continues to refine its flagship mirrorless lineup with fresh Canon Firmware Updates for the EOS R5, EOS R5 Mark II, and EOS R6 Mark III. These updates address critical bugs, enhance system stability, and expand accessory compatibility, ensuring photographers and videographers can rely on their cameras in demanding environments.
EOS R6 Mark III – Firmware v1.0.1
The EOS R6 Mark III receives its first firmware update, version 1.0.1, which:
- Fixes an issue that, in rare cases, prevented certain CFexpress cards from being formatted in-camera.
- Canon recommends performing the update with only the firmware file stored on the memory card.
This fix is crucial for professionals who depend on CFexpress cards for high-speed shooting and 4K/8K video recording.
👉 Download here: Canon EOS R6 Mark III Firmware v1.0.1
EOS R5 Mark II – Firmware v1.2.0
The EOS R5 Mark II update, version 1.2.0, is more extensive, offering both fixes and new functionality:
- Adds support for the EOS Multi Remote, a professional remote shooting system.
- Fixes live-view distortion and Err70 notifications during multiple exposure shots in dark environments.
- Resolves FTP transfer failures (Err41).
- Fixes CFexpress card formatting issues.
- Improves overall system stability.
This update is particularly valuable for professionals working in studio or event environments where remote shooting and FTP transfers are essential.
👉 Download here: Canon EOS R5 Mark II Firmware v1.2.0
See also 10 Best Lenses for Canon EOS R5 Mark II in 2025 – Expert Recommendations for Every Photographer
EOS R5 – Firmware v2.2.1
The original EOS R5 also receives a stability-focused update, version 2.2.1, which:
- Fixes CFexpress card formatting issues.
- Resolves a problem where the camera’s firmware could not be updated via an internet connection, even when newer versions were available.
This ensures smoother future updates and reliable card performance for EOS R5 users.
👉 Download here: Canon EOS R5 Firmware v2.2.1
Why these Canon Firmware Updates matter
- Reliability: Fixes prevent workflow interruptions during critical shoots.
- Compatibility: EOS R5 Mark II gains support for the EOS Multi Remote, expanding professional options.
- Future-proofing: EOS R5 now ensures smoother firmware updates via internet connection.
For professionals shooting weddings, sports, wildlife, or commercial projects, these updates are essential to maintain peak performance.
How to update your EOS camera
- Download the firmware file from Canon’s official support page.
- Copy the file to a formatted memory card.
- Insert the card into your camera and follow the on-screen instructions.
- Confirm the firmware version after installation.
Canon also recommends registering your product on MyCanon to receive future update notifications.
Conclusion
The latest Canon Firmware Updates for the EOS R5, EOS R5 Mark II, and EOS R6 Mark III deliver important fixes and new functionality. Whether you’re a professional photographer or advanced enthusiast, installing these updates ensures your camera remains reliable and ready for the challenges of modern photography.
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