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Firmware Notice: EOS C300 (with the Dual Pixel CMOS AF Feature Upgrade applied): Firmware Version

Firmware Version incorporates the following enhancements:

  1. When CN-E70-200mm T4.4 L IS KAS S is attached the following features are enabled:
    • Autofocus using the Dual Pixel CMOS AF function
    • The joystick on the camera's grip unit can be set to operate the zoom.
    • Manual control of the iris with Camera's Control dial.
    • Control of focus, zoom and iris using the separately-sold Remote Controller RC-V100.
    • Automatic aperture and push auto iris functions.
    • Start/stop recording on the separately-sold lens grip ZSG-C10.
    • Retrieval of Lens metadata, such as the model name and the focal distance will display on the camera.
  1. When the camera is turned off the IS mechanical lock will be active regardless of the position of the switch.
  2. Adds peripheral illumination correction for the following lenses:
    • CN-E70-200mm T4.4 L IS KAS S

EF Lens

    • EF 70-300mm f/4-5.6 IS II USM
    • EF 16-35mm f/2.8L III USM
    • EF-S 18-55mm f/4-5.6 IS STM
    • EF-S 35mm f/2.8 Macro IS STM
    • EF 85mm f/1.4L IS USM


Firmware Version is only for EOS C300 cameras which have Firmware Version - with the Dual Pixel CMOS AF Feature Upgrade applied. If your camera’s firmware is already version, it is not necessary to update the firmware. Once the camera is updated to the latest firmware version, it cannot be restored to a previous version.

If the EOS C300 camera does not have Dual Pixel CMOS AF Feature Upgrade applied, please download Firmware Version


Download Firmware Version for the EOS C300.  

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

If you have not already done so, please register your EOS C300. By registering, we will be able to notify you via email about future service upgrades.

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
For additional support options: pro.usa.canon.com/support