Andrew Reid

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!!!!

It's a good summary in the video. It isn't the 30 mins sold to us by Canon that is the real limitation. It's the 0 mins after a bit of light use in the menus. It's the biggest scandal I have ever known in the camera industry.

Absolutely. Canon fucked a great camera.

This is making Canon money?! That's news to me.

Any teardowns of the R6 out there yet?

The main problem is the PCB circuit board on top of the CPU, sandwiched between that and the back casing. It is utterly lunatic design or (more likely) on purpose. The main CPU should have a thermal pad on top and direct contact to the chassis. It is akin to Nvidia putting a second PCB on top of their graphics processor so it doesn't get into contact with the heat sink, and then telling gamers "sorry but your 2080 Ti only works for 20 mins of 4K Monster Hunter World then you have to go to 720p") I find it hard to believe any engineer would be happy with this layout. The simplicity of the physics, your average 10 year old would understand. Even I understand that if I don't put my Intel CPU in direct thermal contact with a heat sink in my PC, it gets too hot. So Canon can bleat on about using the magnesium alloy case as a heat sink all day long but they didn't implement it that way. The big question is why.

So going back to the actual internal design of the EOS R5... The questions Canon need to answer are: 1. Why is a circuit board sitting between the main CPU and back casing, blocking the heat from spreading away into the chassis 2. Of course, why is there no thermal conductive material on the CPU? 3. And why does the RAM thermal pad overlap onto the CPU, but not entirely cover it? (It seems to spread the heat from the RAM onto the CPU which is never a good idea). 4. Why does ice not cool the camera and speed up recovery time? The firmware recovery countdown timer is so slow to go back up and always the same. And indeed they will be asked via my contact at Canon UK. And I won't let up until they answer. If they don't answer, they have something to hide obviously.

Yes that much is clear I'm afraid. To be quite honest, I don't want to hear any more bullshit from you. So please take yourself off to a different forum.

Looks like our favourite Canon rep is pushing the line skipped 4K mode now! What year is it, 2015? How's this for an idea... You shoot JPEG 4 megapixel line skipped photos on your next shoot, and let's see you be the apologist then. "But 45 megapixel is so hard on the photoshop chain!"

That is evident. Ah so it's ok then. The whole release is hyped as an 8K pro video tool with 4k 120p but because Canon slipped some best-case scenario disclaimers into a CVP video, they're off the hook! The real overheating data should go something like this: 8K from cold - 20 min if you're lucky 8K about 10 mins into a shoot - 10 mins maximum 8K after a few stills - 5 mins 8K limit after a few stills and the Wifi menu - 0 mins! And the marketing should say something like: "Getting through any kind of video shoot, even filming your pet poodle for 10 mins with the powerful new EOS R5??... You'll be lucky!" That would be far more honest in my view. But yeah, no false advertising!! Did you actually READ any of the PR or Canon website? WHY DO PEOPLE NOT READ OR LEARN BASIC FACTS BEFORE SPOUTING OPINIONS??? “On the set of high-end productions such as commercials, dramas and documentaries, the EOS R5 is an ideal partner to the likes of Canon’s brand-new EOS C300 Mark III” “Set to redefine mirrorless, today’s update confirms the incredible recording capabilities of the EOS R5 including internal 8K RAW up to 29.97fps and suitability with high-end production workflows” “The EOS R5 boasts features seen only in high-end cinema cameras many times its price point and video features no other mirrorless camera on the market offers.” “Created as a direct response to growing demand for content creators to shoot both high-quality film and stills, the EOS R5 holds its own as the lead camera in productions – going over and above industry standards and achieving outstanding 8K.” Yeah sure. Sure it does.

Until there is a hack, or an official fix, it's game over really. This is a 4K pixel binning camera with nice ergonomics and good 10 bit codec. Think of it as the A7R IV but better codec and colour. A lot to like about that, but at the moment I can't really bring myself to talk about it, because the ethics of the overheating debacle are just so downright offensive it makes me never want to buy another Canon product ever again, let alone give one a good review while overlooking the highest quality 8K/4K modes. If Canon apologise and promise a fix, then I will happily use the EOS R5 in pixel binned mode until the better modes are working properly. But if they don't recall it or apologise, there will be fucking hell to pay from their customers and quite rightly so! It isn't the screen or EVF creating the problematic heat, it's the processing required to show the image on it... or so Canon has us believing... I think it's all very fishy and the more I dive into it, the weirder it gets.

Adrian here is the ultimate proof that people are blinkered idiots, that live under rocks. They miss long term trends and they even miss how millions of people use cameras differently to how they do. As for professional camera for video... I refer you to the famous Canon EOS R5 marketing and PR statements! https://www.eoshd.com/news/opinion-on-dpreviews-canon-eos-r5-overheating-test-in-4k/ Even Richard Butler at DPReview didn't absorb or register the Canon statements about professional video and cinematography use. It's unbelievable it really is. Why is the world so utterly full of chinless wonders who wander around the planet with their eyes half shut??

This should be the new Canon slogan. "And if you can get any video with this camera, its a bonus." Let's see how many sales that gets them vs 8K RAW!

No it isn't. You're just making excuses now for not seeing it as it really is, and from the perspective of a video shooter to whom Canon is trying to sell this camera as "comfortable on a C300 III shoot" I'm guessing you didn't even read much of what Canon said about the camera and how they described it for professional video, did you? And at $4000 it isn't exactly a consumer camera.