Product image of EOS 1DX Mark III Warranty
EOS 1D X Mark III Support
Drivers & downloads

EOS-1D X Mark III Firmware Update, Version 1.1.0 [Mac OS X]

Content Id: 0400556602



Firmware Version 1.1.0 incorporates the following enhancement and fixes:

1. The option to capture full HD movies and 4K UHD movies in 23.98p frame rate has been added.
2. The communication speed has been improved when connected via wired LAN.
3. The "Browser Remote" function has been added.
4. The function to transfer only protected images has been added.
5. Corrects the phenomenon in which, when the electronic level is set to "Show" in the viewfinder display, in rare cases, the camera may freeze when operating the AF-ON button or shutter button.
6. Corrects the phenomenon in which the Custom Shooting Mode settings may change when the shooting mode is switched.

Firmware Version 1.1.0 is for cameras with firmware up to Version 1.0.0. If the camera's firmware is already Version 1.1.0, it is not necessary to update the firmware.

When updating the firmware of the camera, please review the instructions thoroughly before you download the firmware.

(1) Once the EOS-1D X Mark III is updated to Version 1.1.0 (or later), it cannot be restored to a previous firmware version (Version 1.1.0 to 1.0.0).
(2) Camera setting files created with EOS-1D X Mark III cameras running Firmware Version 1.0.0 can be uploaded to EOS-1DX Mark III cameras running Firmware Version 1.1.0.
(3) Camera setting files created with EOS-1D X Mark III cameras running Firmware Version 1.1.0 cannot be uploaded to EOS-1D X Mark III cameras running Firmware Version 1.0.0.
About Browser Remote
(4) When using Safari with iOS 13 or iPadOS 13, multiple images can not be downloaded.
(5) When using Safari with iOS 13 or iPadOS 13, the logged-in state will expire after a while and you will be asked if you want to continue with the session.

You can download the latest version of the instruction manual from our Web site.

Preparations for a firmware update:
After the downloaded compressed file (.dmg file) is extracted, a firmware folder is created.

*Extracting the downloaded file:
The downloaded folder is automatically extracted, and a firmware folder is created. If the download folder cannot be automatically extracted, double-click the folder.

The extracted folder contains the firmware (File name: 1DX30110.FIR, File size: 80,961,872 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 confirm the contents of the download, and carefully read through the firmware update procedures.

(The following is the history of past firmware updates)
Firmware Version 1.1.0 is the first update to be released.

File information

File Name : eos1dx3-v110-mac.dmg
File Type : FA
File Size : 86139354KB