EOS cameras have often had firmware updates made available to fix behaviours or enhance features. Given that other components of the EOS system also have firmware, it should be no surprise to find firmware updates for EOS lenses and other items too.

firmware updates for EOS lenses and accessories

With the introduction of the EOS R system, firmware updates are more essential than ever due to the way the lens and camera body share image processing tasks, so it’s vital to ensure your RF lenses and EOS R series cameras are kept up to date.

Firmware updates for lenses

I’ve tried to locate all the firmware updates I can find online, but if you have information about a lens update I am not listing please get in touch and I’ll happily update the page.

RF lenses

Rf 24-70mm firmware update

RF lenses without firmware updates

  • RF50mm F1.8 STM
  • RF85mm F1.2 L USM
  • RF85mm F1.2 L USM DS
  • RF85mm F2 Macro IS STM
  • RF100mm F2.8L Macro IS USM
  • RF400mm F2.8L IS USM
  • RF600mm F4L IS USM
  • RF600mm F11 IS STM
  • RF800mm F11 IS STM
  • RF28-70mm F2 L USM
  • RF70-200mm F4L IS USM

Firmware updates for accessories

Firmware updates for accessories are even more difficult to track, so if you know of more items with publicly available or Canon service installed firmware updates please get in touch and let’s keep this page updated.


Revision history

25/May 2021 – Added EF-S 55-250mm f/4-5.6 IS STM, and updated firmware version for EF-M 15-45mm f/3.5-6.3 IS STM.

16/Apr 2021 – Added new firmware for RF100-500mm F4.5-7.1L IS USM lens and updated version for RF 70-200mm F2.8L IS USM. Added new RF400mm F2.8L IS USM, RF600mm F4L IS USM and RF100mm F2.8L Macro IS USM lenses.

21/Nov 2020 – Added new firmware update for EF 400mm f/4 DO IS II USM lens.

10/Nov 2020 – Added new RF lenses and updated the firmware versions for all RF lenses. Added new firmware update link for EF 100-400mm F/4.5-5.6L IS II USM. Added firmware update for WFT-R10.

25/July 2020 – Added first update for RF15-35mm F2.8 L IS USM, and updated the versions of firmware for several other lenses and BG-E22. Added new lenses RF600mm, RF800mm, RF85mm F2, RF100-500mm, and RF24-105mm F4-7.1. Added grips for EOS R5/R6

15/March 2020 – Added EF 400mm f/2.8L IS III USM, EF 600mm f/4L IS III USM, EF 70-200mm f/4L IS II USM, EF 200-400mm f/4L IS USM Extender 1.4x and GPS Receiver GP-E2.

Looking for firmware for your EOS camera?

There’s another page dedicated to the firmware update information for EOS cameras since the start of the digital EOS cameras created by Canon.