The Canon RF 50mm F1.2L USM is a flagship professional standard prime lens for the EOS R system, featuring an ultra-fast f/1.2 maximum aperture for exceptional subject isolation and low-light performance. It exploits the wider RF mount diameter for superior optical design with reduced aberrations at maximum aperture compared to EF equivalents. Firmware updates maintain compatibility with the latest EOS R camera bodies and AF systems.
Product released: September 5, 2018
Latest firmware version
Version 1.0.5, released November 4, 2020
Verified by LatestUpdate: June 18, 2026
What's new in version 1.0.5
Firmware Version 1.0.5 incorporates the following improvement for the phenomenon: 1. Reduces image noise when performing high sensitivity shooting with the RF50mm F1.2 L USM lens attached to the EOS C70 camera. Firmware Version 1.0.5 is for lens with firmware up to Version 1.0.4. If the lens' firmware is already Version 1.0.5, it is not necessary to update the firmware. Preparations for the firmware update: In the folder you downloaded are the firmware (File name: RF028105.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 carefully review the instructions to confirm your understanding of the firmware update procedures. In the case of updating the firmware of RF50mm F1.2 L USM using EOS C70, please check the EOS C70's Instruction Manual.
The Canon RF 50mm F1.2L USM is a flagship professional standard prime lens for the EOS R system, featuring an ultra-fast f/1.2 maximum aperture for exceptional subject isolation and low-light performance. It exploits the wider RF mount diameter for superior optical design with reduced aberrations at maximum aperture compared to EF equivalents. Firmware updates maintain compatibility with the latest EOS R camera bodies and AF systems. It was originally released on September 5, 2018.
What is the latest firmware version for the Canon RF 50mm F1.2L USM?
The latest firmware version for the Canon RF 50mm F1.2L USM is 1.0.5. It was released on November 4, 2020.
What changed in Canon RF 50mm F1.2L USM firmware version 1.0.5?
Canon RF 50mm F1.2L USM firmware version 1.0.5 includes the following changes: Firmware Version 1.0.5 incorporates the following improvement for the phenomenon: 1. Reduces image noise when performing high sensitivity shooting with the RF50mm F1.2 L USM lens attached to the EOS C70 camera. Firmware Version 1.0.5 is for lens with firmware up to Version 1.0.4. If the lens' firmware is already Version 1.0.5, it is not necessary to update the firmware. Preparations for the firmware update: In the folder you downloaded are the firmware (File name: RF028105.afu / File size: 2,...
How do I update the Canon RF 50mm F1.2L USM firmware?
To update the Canon RF 50mm F1.2L USM firmware, download the latest version (1.0.5) from Canon's website. Follow Canon's installation instructions, which typically involve copying the firmware file to a memory card or connecting via USB. You can download the latest firmware from Canon's support page.
Where can I download the latest Canon RF 50mm F1.2L USM firmware?
Details and download instructions for the latest Canon RF 50mm F1.2L USM firmware (version 1.0.5) are on Canon's official release page: https://www.canon.co.uk/support/consumer/products/lenses/rf/rf-50mm-f1.2-l-usm.html?type=firmware
How do I check for Canon RF 50mm F1.2L USM firmware updates?
You can track Canon RF 50mm F1.2L USM firmware updates automatically on LatestUpdate.io. We monitor Canon's releases and notify you when new firmware versions are available, so you never miss an update.
Who makes the Canon RF 50mm F1.2L USM?
The Canon RF 50mm F1.2L USM is manufactured by Canon. Visit the official product page for more information.