21 May 2018

New Canon EOS 5D Mark IV Firmware Update Version 1.0.4

Canon EOS 5D Mark IV Firmware Update Version 1.0.4 now available for both Windows and Mac.

Download Canon EOS 5D Mark IV Firmware Update Version 1.0.4>>

Canon EOS 5D Mark IV Firmware Update Version 1.0.4 Driver/Software Details

File Name
File Version
File Size
31.65 MB
File Languages
English | Spanish | French | Japanese | Chinese
Post Date
Download and Installation Instructions
Changes in the Firmware
Firmware Version 1.0.4 incorporates the following fixes and improvements:

1. Fixes a phenomenon in which a red-colored area may appear at the bottom-center of a captured image when shooting in bulb mode or during a long exposure.
2. Fixes a phenomenon in which the autofocus may not respond when the autofocus is initiated via pressing the shutter button, the AF-ON button or the AE lock button when configured in the custom control menu.
3. Enhances the reliability of communications between the camera and SD card.
4. Fixes incorrect wording on the Finnish language menu screen.

Firmware Version 1.0.4 is for cameras with firmware Version 1.0.3 or earlier. If your camera's firmware is already Version 1.0.4, it is not necessary to update the firmware.
When updating the firmware of your camera, please review the instructions thoroughly before you update the firmware.
The firmware update takes approximately 4 minutes.

Preparations for the Firmware Update:

After the downloaded compressed file (.zip) is extracted, a firmware folder is created.

* Extracting the downloaded file: Right-click the zip file, and then select Extract All to extract the file. The extracted folder contains the firmware (file name: 5D400104.FIR / file size: 31,518,640 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.)

Q: Are the improvements from previous firmware versions included in Firmware Version 1.0.4?
A: Yes, the following improvements from the previous version are included:

(Previous) Version 1.0.3 improvements:

1. Corrects a phenomenon in which the color of images varies depending on the metering mode selected during flash shooting.
2. Improves the reliability of communication when using the EF1.4X III or EF2X III extender.
3. Corrects the level display when the camera is held in the vertical orientation with the hand grip pointing downward.
4. Improves the reliability of communication via USB cable when using the Lens Data Registration function with EOS Utility 3.

(Previous) Version 1.0.2 improvements:

1. Improves communication reliability when using EOS Utility to register/update* new Digital Lens Optimizer.

Note: *Confirm that the camera firmware is Version 1.0.2 (or later).
Zip Type

New Canon EOS 5D Mark IV Firmware Update Version 1.0.4

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