09-02-2016 10:41 AM
09-04-2016 07:27 AM
If it's too late for a return I would call Canon and arrange for it to be sent in for check/repair.
03/26/2024: New firmware updates are available.
EOS 1DX Mark III - Version 1.9.0
12/05/2023: New firmware updates are available.
EOS R6 Mark II - Version 1.3.0
07/31/2023: New firmware updates are available.
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