Canon Group
Close Close
Menu Menu Close Close Search

RF 100-500mm f/4.5-7.1 L IS USM Firmware Update Version 1.0.9

30th March 2021

Firmware Version 1.0.9 incorporates the following fixes and enhancements:

1. Adds a digital full-time manual focus function (a function that enables constant manual focus adjustment in both One-shot AF and Servo AF).

2. Improves a phenomenon in which the background is not blurred when performing slow panning with the IS (Image Stabilization) mode set to Mode 2 or Mode 3.

Firmware Version 1.0.9 is for lenses with firmware up to Version 1.0.7 If the lense's firmware is already Version 1.0.9, 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 (RF029109.afu / file size: 2,883,636 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 check the procedure in accordance with the instruction.

Firmware link:

Share this page