Yeah I’m in awe that this is considered acceptable that the camera just can’t record video more than 20 minutes for all the money you pay.
I checked for a 100€ 4k action cam and tried to find out the bitrate they use. I found none where it was specified but this one https://www.goxtreme-action-cams.com/de/goxtreme-manta-4k/ requires at least a U3 class SD card. That means 30MB/s so 240mbps. And thats what causing the heat. Canon could of course but a better cooler into the camera but that was either a economic decision to protect their professional camera gear, a a design decision to keep the case small or a mix of both.
If you talk about 8k, 4k or 1080p, the only thing that matters is the resolution. Whatever resolution that is advertised should work.
Also the other aspect of resolution not being everything is the optics; my Sony α6100’s 1080p is miles ahead of most phones’ 1080p in quality, and I think there’s a high chance it’d be better than a $100 4K video camera’s 4K.
In short, not all 1080p or 4K or 8K or whatever is created equal.
One other thing to remember: all else being equal, 8K video will be consuming four times as much power and generating four times as much heat as 4K video, which will be consuming four times as much power and generating four times as much heat as 1080p video. (Of course, all else never is equal, but it’s a fair approximation, especially within the context of a single device; but when comparing between generations, as part of quadrupling the pixels pushed, they probably put more effort into efficiency to try to balance power and heat things out too.)
It already is reliable for it's stated goals. Unlimited 8k recording is neither a stated feature nor a goal of this camera. If you peg a smartphone CPU at 100% the system firmware will throttle it down to a safe limit. This is no different. The R5 is a tiny full-frame weather-sealed camera that's designed to be hand held. Which other camera that is comparable does things better?
It is stated on their website.
The main market for this camera is probalby not 8k video.
Its also hard to determine if this is a real issue for canon or if its just an issue in a circle of people who are more vocal about it.
he sure went through a lot of trouble if it was not a real problem (maybe he works for Nikon)
It is a real problem. The questions is for whom? For the majority of canon R5 buyers? I doubt that.