The Sony A7R cameras do indeed have a higher rated shutter, and also sell in significantly lower volumes as they are more expensive models - the A7iii camera out 6 months before the first FF Canon or Nikon mirrorless cameras, and was one of the top selling models globally for several years - the greater number of failure reports are simply a case of there being a lot more cameras sold, which is then amplified by the internet - more failure reports means more people posting it has a 'high failure rate', so more people read and repost this, leading to yet more reposts.Still significantly more than the R line or canon/ Nikon offerings. So there is definitely a weak part in these cheaper cameras, hence why they have half the life expectancy of the R line up. You would have thought after quite high reports on the iii they would have fixed it on the iv but now it’s been out a while there seems to be to be a fair amount and it seem to have been bought less by consumers.( doesn’t seem to offer that much more other that MP)
The RV seems to be the better over all camera now anyway and doubt the V will have half the tech it seems to offer.


