Canon RF 70-200mm F4 L IS USM firmware

Firmware history

1. Version 1.1.1 Latest Released Dec 8, 2022 First seen Jul 10, 2026
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   Firmware Version 1.1.1 incorporates the following enhancement:

   1. Adds the ability to correct focus breathing du​ring movie recording.

   • Compatible with cameras that support focus breathing correction. If the lens' firmware is already Version 1.1.1, 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. Preparations for a firmware update: After the downloaded compressed file (.zip) is extracted, a firmware folder is created.
   • Extracting the downloaded file: Right-click the zip file, and then select Extract All to extract the file. In the folder you downloaded are the firmware ( RF030111.afu / file size: 2,883,636 bytes) and instructions on the firmware update procedures (a PDF file in five languages: Japanese, English, French, Spanis​h, 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. (The following is the history of past firmware updates.) Changes in version 1.1.0:

   1. Adds an electronic full-time manual focus function (a function that enables constant manual focus adjustment in both One-shot AF and Servo AF), which is enabled when using the EOS R5, EOS R6, and EOS R3 cameras.
   2. Improves an issue in which the background is not blurred when performing slow panning with the IS (Image Stabilization) mode set to Mode 2 or Mode 3.
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