Canon RF 50mm F1.2L USM

Canon RF 50mm F1.2L USM firmware

Canon · RF 50mm F1.2L USM · RF 50mm F1.2L USM · Lens

Latest firmware for the Canon RF 50mm F1.2L USM is v1.0.5 (November 4, 2020).

Specifications

RF 50mm F1.2L USM specifications

Focal length
50mm
Maximum aperture
F1.2
Minimum aperture
F16
Type
Prime Lens
Filter thread
77 mm
Elements / groups
15/9
Aperture blades
10
Closest focus
0.4 m
Maximum magnification
0.19×
Stabilisation
No
Autofocus
Yes
Mount
Canon RF
Weight
950 g
Dimensions
108 × 90 mm

Changelog

RF 50mm F1.2L USM firmware changelog

  1. v1.0.5 first tracked

Firmware history

  1. Version 1.0.5 Latest Released Nov 4, 2020 First seen Jul 10, 2026
    Show release notes

    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 came​ra. 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 proc​edures (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.
    Release notes & download

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