I recently got a 1dx (mark 1), when I plugged a flash the back screen gets black and no button responds. I'm just able to change aperture and shutter speed (even not iso), and make picture.
Once I turn the flash off, the camera gets fully functional (sometime I have to restart it), and I can see the picture I just made.
I tried with a old 580ex and a 580exii, same experience. With my 5dm2 I never had such issue.
Do you guys have any idea about what's wrong ?
Solved! Go to Solution.
07/31/2023: New firmware updates are available.
05/31/2023: New firmware updates are available.
05/18/2023: New firmware updates are available.
04/20/2023: New firmware version 1.4.1 is available for EOS R3
03/30/2023: New firmware updates are available.
2/07/2023: New product announcements!EOS R8 EOS R50RF-S55-210mm F5-7.1 IS STMRF24-50mm F4.5-6.3 IS STMRF15-30mm F4.5-6.3 IS STM