Andrew Reid

Yeah. Yet still people are claiming the sensor gets too hot?

Shall I pack 10 cans per shoot or just 1?

Posted 2 days ago on front page 🙂 https://www.eoshd.com/news/chinese-user-modifies-canon-eos-r5-to-improve-heat-management-but-finds-artificial-firmware-time-limit/

Please post it here: https://www.eoshd.com/comments/topic/46306-canon-eos-r5-r6-overheating-discussion-all-in-one-place/page/43/#comments

What about plugging HDMI cable in at the first moment the camera starts, using it via HDMI for 1 hour for 4K HQ, then put a card in. I'll add it to the list of things to try. Have the Ninja V sat here doing nothing.

It's not a plastic box though. It's alloy

I think they'd make more money just putting good stuff out, to be honest. No games. If the EOS R5 is capable of longer record times in 4K HQ and 8K, just give them us. We paid for it! We get to decide how we use it. Especially as it was marketed for pro video use.

How about we turn the camera on, do nothing with it, leave it in the menus. Put it in the freezer. After 1 hour, see if the timer has ticked down to 0 mins of 8K. Who wants to see an OVERHEATED! SHUTTING DOWN! screen with frost on it?

Why does it need 25 mins in the freezer to get back to baseline temp? It defies logic. You heat a metal baking tray to 60C and try putting it in the freezer! It's cold after a minute. It may be that extreme temp changes do change the artificial timer. It's still fake though. Otherwise the camera would be ready to go again after a couple of mins in the freezer. I have officially received permission from The Girlfriend for some time with the fridge later and some frozen peas. But to be honest, writing is already on the wall as far as I'm concerned. And Jesse did not tell us how long his measurements on all the parts and camera areas took after he stopped recording 8K. So the 25 mins isn't the total time of idle off-time and even if it is, it doesn't show that the timer isn't artificially locking us out from the camera for unnecessarily long periods.

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!

Hello Wondo Hard to say isn't it? I cannot figure out the business side of it at all. Surely the EOS R5 at 4400 euros is an important release that makes more profit overall than a more niche C200. So either it is internal politics that have played out badly, or possibly a buggy cripple algorithm. But really I do not have the answer. Canon owes us that. It could even be internal sabotage for all I know. The strangest things for me are the following facts: - Canon marketed it as 'comfortable on C300 III productions' and made a big thing about the 8K RAW, so were marketing even aware of the limitation? - The cool down times are unreasonable. After a shut down at 62C, I can leave my camera on a desk for 1 hour turned off and come back to find only 5 mins 8K. There is no chance in hell any silicon or metal stays above 60C for that period of time inside a device that has no power. I even removed the battery, took the lens off and opened the card door to vent the internals. No 'weather sealing' at play here. - There is only a small possibility that the EXIF temp is a long way off the CPU core temps. Also the Chinese guys with the heat guns were able to read the real surface temp of the chip and back of camera, which correlate closely to the EXIF temp we read from the intervalometer shots - Why go to so much effort to build this absolute cutting edge machine.... Only not to let us use it? It's a mega camera. That they saw fit to do this is so far beyond any realm of understanding. People talk about plastic melting or safety regulations... But none of it can explain why 46C after 30 mins causes the camera to shut down immediately when switched to video mode, but 46C after 2 mins allows you to record 15 mins of 8K. 46C or even 62C are so far below what is considered unsafe. The camera is not even hot to the touch. Pulling the Cfexpress card out after the max 8K recording time is up, and that is hot but not uncomfortably... all normal. It gets hotter in my ProGrade card reader.

Plastic melting point is 170C

A good reaction on Twitter: I agree with Quinn about it being a bad look. They need to at the very least come clean, answer, own up and apologise. Then fix it.

What's your recovery time like? I just had mine sat for an hour and a half, but couldn't get more than 5 min of 8K on the clock That is absurdly fake. The camera body was even cold to the touch.

Absolutely. Sigma and Panasonic are my top picks

If Canon had been honest it would go something like this: "You may record 30 mins of 4K HQ or 8K once per day because we want you to keep buying Cinema EOS cameras at $15,000!" Honesty is sometimes just as hard to swallow as the lies and deceit. I may never buy another Canon product again after this.

So it is idle with no card... yet still overheating warning shuts it down? Yet with an HDMI cable attached it doesn't do this. More fakery from Canon, in my opinion.

The temperature reported by the EXIF data more-or-less corresponds with the Chinese heat gun thermometer tests out there as well and it closely resembles the ambient temp of my room at the moment, I am sweltering in 30 degrees heat! I suppose the easy test would be to cool the camera right down in a freezer, quickly take 1 shot then analyse that EXIF data. It is very unlikely the camera is reporting wrong data in the EXIF. It is very basic to get right, even for Canon.

If there is indeed a hardware problem such as the LSI running too hot or certain parts of the chip not turning off when idle, then Canon may have originally developed this kind of temperature monitoring system to keep things in check. But the fake element of it is that the actual temps my camera is reporting are nowhere near problematic and the recovery timer is completely out of whack with both ambient temps and the actual cool down temps of the electronics. So it is likely they found a convenient outlet in the temp management system for a classic Cripple Hammer. I want answers from Canon and I will be seeking them starting tomorrow.

EOSHD testing finds Canon EOS R5 overheating to be fake, with artificial timers deployed to lock out video mode https://www.eoshd.com/news/eoshd-testing-finds-canon-eos-r5-overheating-to-be-fake-with-artificial-timers-deployed-to-lock-out-video-mode/

EOSHD testing finds Canon EOS R5 overheating to be fake, with artificial timers deployed to lock out video mode. In this test, we will probe my Canon EOS R5’s actual internal temperature in Celsius, as reported by the firmware. This week CDA-TEK and I are developing an Android app for the Canon EOS R5, which connects to the camera via the Canon API... Please read the rest of the article on the blog carefully before commenting below

Oh suddenly it bypasses the overheating does it?

Try the following test... Have the camera turned on for 1 hour and record just 10 seconds of 4K HQ. The rest of the time have it just idle in the menus, in the shade, indoors is ok. Does the overheat warning still kick in after 37 mins?

Is the public apology on the way as well?

Tried the clock and reset, hasn't worked so far but we'll keep probing. TONEH!!!!