Sabyasachi Patra

Canon Announces future firmware update for EOS 1DXMark III

Canon Announces future firmware update for EOS 1DXMark III

Canon has announced that they are planning a firmware update for the recently released Canon EOS 1DX-Mark III DSLR camera. In early-April 2020, the new firmware update would be released.

The following is the advisory from Canon

Future Firmware: EOS-1D X Mark III

Thank you for using Canon products.

We have confirmed that the following phenomenon may occur during use of the EOS-1D X Mark III digital SLR camera. A new firmware release is planned for early April; once the new firmware is ready, we will make an announcement on our website.

We would like to offer our sincere apologies to users of these products who may have been inconvenienced by this issue


When the camera is used with the electronic level set to “Show” in the viewfinder display, in rare cases, the camera may not perform normally when operating the AF-ON button or shutter button.

Affected Product

EOS-1D X Mark III (Firmware version 1.0.0)


Use the “Hide” setting for the “Electronic level” in the “Viewfinder display”.

Setting procedure:

Menu / Set-up 2 tab / Viewfinder display / Electronic level* [Hide]
*Default setting: [Hide]

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