Even if it turns out that the EXIF "camera temperature" has no relation to the temperature of the DIGIC X chip, the test results still confirm fake overheat timers. Why - let me explain:
1. CDA TEK's (BTM_PIX)'s app reads the temperature inhibitors. If the EXIF temp sensor is on a separate board and is not reading the CPU core temps, it would still increase if the CPU got hotter. The CPU is the primary heat source in the camera body and heats up the entire unit. We show that the temp inhibitors toggle on over time, even as the EXIF reported temp stays level at 46C or even decreases (as well as camera body external temps to the touch).
2. After powering off an electronic device or CPU, the part dissipates most of the 90C+ heat within seconds. If opening the card door, the chipset even then has a venting hole. Hot air escapes and dissipates quickly. When I switched off the camera for 1 hour and opened the card door, removed battery and lens, the temp inhibitors were left on even after 1 hour. It is impossible for the CPU to maintain 60C+ temps (33C above ambient temperature!) in this situation with no power.
3. The temp inhibitors flag ON even when the camera is not recording. They flag ON in the Wifi menu. ON in live-view. ON during stills shooting. If these processes are causing problematic temperatures for the CPU, it should shut the camera down in stills mode, but it doesn't... it can be left on.
Sure, but see my point 1 & 2 above.
A separate temp sensor would not stay at 46C if a main CPU at 90C started heating the body and internal air.
And heat distribution via air does not take 1 hour between a hot silicon chip and the ambient air right next to it and in/around the card slot.
The Chinese heat gun shows this not to be the case, but anyway, if the sensor is the limiting part that gets too hot, it would have to shut down during an 8K (45 megapixel) photo shoot at the same time it shuts down for 8K video.
Are you talking about consumer health & safety regulations regarding contact with hot surfaces?
Or stability and integrity internal materials?
This depends on the plastic. You can have plastic parts inside the camera that don't melt until 170C.
And as for metal....Well, even solder does not melt at 46C!
See?
The sensor readout isn't the heat limited part.
Nope.
The problem occurs even with an SD card, which can be used for unlimited 4K recording in other devices without issue.
They don't get very hot (as in 80C+), maybe 50C max.
You can read/write for hours on an SD card in a reader so it isn't about SD card safety regulations.
There are cameras like the S1H that write 6K or 4K at 400Mbit to SD cards. Higher data rates than EOS R5 4K HQ.
They don't get that hot though. I know, I've tried. This is just speculative on your part I'm afraid.
The Cfexpress card I have does get 'a bit warm like a cake'... but not scolding!
You can use it in a device that records 4K RAW for hours.
So I hardly think that there's anything about the comparatively low-bitrate 4K HQ 8bit H.264 (with CLOG disabled) on the EOS R5 that causes the Cfexpress card to heat up beyond the safety regulations.
Yes they can.
I agree. They owe us a full and frank explanation.
In my opinion lying to customers is not a good look!
Yes, I think it really make sense if situation is so serious... but I cannot imagine that people could be so serious about such unimportant matters
(Hey, there are millions just in Syria left at the moment without homes, food and medicament, and I bet that at least for 100000 of them just several years ago the main problem in life could be also weather to buy GH4 or A7S or some corresponding toy of interest...)
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