Pixel Perfect wrote:
Doesn't inspire confidence. Never had my Sony's ever lock-up or any previous Canon DSLR.
it it only the R5, does R6 have this affliction too?
Well, it seems mostly to happen in Electronic Shutter, and not too many people use electronic shutter on the R6 since it’s rolling shutter is slower than the R5.
Regardless, I’ve been using the R5 for over a year and never had a lockup of any kind, so your mileage will definitely vary.
It seems most likely that you will experience some kind of lockup potentially if you are shooting electronic shutter with eye af with EF lenses. While arbitrage experienced some on the 100-500, that may have been some other issue, or fixed by firmware, etc.
Not every user experiences lockups, and many that did had their issue resolved by either swapping CFExpress cards or sending to Canon to have the circuit board replaced. Some have had worse luck.