The Canon RF 14-35mm F4L IS USM is a professional ultra-wide-angle zoom lens for the EOS R system, covering an extreme wide perspective to standard zoom range in a compact L-series body. It features 5.5-stop Image Stabilization and is designed for landscape, architecture, interior, and astrophotography on full-frame EOS R cameras.
Product released: September 1, 2021
Latest firmware version
Version 1.0.3, released December 8, 2022
Last checked for updates: Oct 31, 2026 03:42 UTC
What's new in version 1.0.3
Firmware Version 1.0.3 incorporates the following enhancement: 1. Adds the ability to correct focus breathing during movie recording. * Compatible with cameras that supports focus breathing correction. If the lens' firmware is already Version 1.0.3, it is not necessary to update the firmware. You can check the firmware version of the lens from the camera menu. Refer to the camera instruction manual for how to check the current firmware version.
The Canon RF 14-35mm F4L IS USM is a professional ultra-wide-angle zoom lens for the EOS R system, covering an extreme wide perspective to standard zoom range in a compact L-series body. It features 5.5-stop Image Stabilization and is designed for landscape, architecture, interior, and astrophotography on full-frame EOS R cameras. It was originally released on September 1, 2021.
What is the latest firmware version of Canon RF 14-35mm F4L IS USM?
The latest firmware version of Canon RF 14-35mm F4L IS USM is 1.0.3. It was released on December 8, 2022.
What changed in Canon RF 14-35mm F4L IS USM firmware version 1.0.3?
Canon RF 14-35mm F4L IS USM firmware version 1.0.3 includes the following changes: Firmware Version 1.0.3 incorporates the following enhancement: 1. Adds the ability to correct focus breathing during movie recording. * Compatible with cameras that supports focus breathing correction. If the lens' firmware is already Version 1.0.3, it is not necessary to update the firmware. You can check the firmware version of the lens from the camera menu. Refer to the camera instruction manual for how to check the current firmware version.
Where can I download the latest Canon RF 14-35mm F4L IS USM firmware?
Details and download instructions for the latest Canon RF 14-35mm F4L IS USM firmware (version 1.0.3) are on Canon's official release page: https://www.canon.co.uk/support/consumer/products/lenses/rf/rf-14-35mm-f4l-is-usm.html?type=firmware