The lens has worked fine on other cameras. Can the lens cause a problem with the camera?
Worked fine on other cameras at the same time as the three cameras you mentioned have a problem, or worked fine at other times?
I have used the Canon 70-200 lens for 5 and a half years on three different Canon cameras: 2 70 D's and one 90D. My problems with all three cameras happened when I was using that lens. In other words, after I couldn't use one Canon camera anymore, I used the lens on the next Canon I bought and it worked until the same problem happened. And then again with the 90D which failed last night.
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