EOS-1D X Firmware 1.2.1 in the Wild

Last updated: May 6, 2025 4:11 am

Published: January 21, 2013

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New firmware for the EOS-1D X coming?
We're getting various reports that serviced Canon EOS-1D Xs are coming back from service with firmware 1.2.1 installed.

There is no breakdown of what has been fixed or added to the camera, but I do expect to see an official release soon.

Firmware 1.2.1 installed | Image via dslr-forum.de

Canon EOS-1D X at B&H Photo for $6728 (Plus $446 in extras)

TAGGED:eos-1d x firmware

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ByCraig

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Craig is the founder and editorial director for Canon Rumors. He has been writing about all things Canon for more than 17 years. When he's not writing, you can find him shooting professional basketball and travelling the world looking for the next wildlife adventure. The Canon EOS R1 is his camera of choice.