Andrew Reid

I don't really know what any of that means but the "variably" stands out. That the recording limits are variable is my worst nightmare! At least with a set and certain 30 min limit you know the score on a shoot. You know how much you can roll, and when to take a break. With it being obviously influenced by ambient temperature, often the limit could be anything between 10 and 30 minutes. There is no predictability. It's a disaster.

Welcome to the forum. It ticks a lot of boxes on paper but it is precisely the fact it can't go for longer than 20 minutes in the highest quality video modes which excludes so many people. Also if like me you will be using it for shorter continuous takes in-between shot set-up and composition, that's not to say the camera isn't still building up heat in-between takes when it is still switched on and supplying the live-view picture for composition. So eventually the overheating problem might occur in a short recording too. We'll have to wait and see about this, but with the A6300 it was a problem. No excuses on a £4k pro camera for poor reliability or excluding so many usage cases, like interviews, live events, live music, etc. There are more things beyond just live events that need longer takes. Documentaries for example are heavily edited but shots could roll on for a while to get the needed coverage. Anything you don't control, may need longer. Wildlife shoots - recording and waiting for the shot, if you trigger recording just as it happens, you've missed the crucial beginnings and build up to the shot. Narrative - long continuous takes may usually be edited down dramatically afterwards, but sometimes when a take needs to be restarted the actors go straight away and the camera keeps rolling. Even on a student short film this is the case. You can't interrupt somebody's flow to save the camera from overheating. Other examples - interviews, that goes without saying. And the majority of documentaries have a lot of interviews. Netflix stuff - look at the Tiger King series - again it's heavily edited but these are cut from long continuous recordings of dialogue and intimate monologues, where nothing could be missed. Hours and hours of source footage! Panasonic S1H is Netflix approved. I don't see how the R5 could be if it behaves like this. Even music videos, if a band needs 5 takes in one continuous recording and the editor picks the best, that is going to pose issues on the R5. Also, on multiple camera recordings with large coverage - you cannot start and stop all the cameras. You leave them running. They also need to be in sync. Timecode. Very important. If one has to stop because it's overheating, that's trouble. Finally, YouTube - around 70% would find a 20 or 30 min limit a real hassle. Long 20 min+ monologues are very common. Indeed, if you are unlucky enough to have the camera reach a high temperature in any of these circumstances, a quick look at the recovery times is sobering reading. The limit after a lengthy and inconvenient rest is just 10 minutes of 4K recording and even less in 8K. The camera probably takes 30 minutes to return to ambient room temperature. And this is at 23 degrees ambient. If the shoot is a hot one you've basically got no chance of reliability or interruption free creativity. This is a complete dealbreaker for a vast number of the EOS R5's target customers. I am not unhappy about the specs on paper. I welcome RAW... Not so much 8K. Have you seen the file sizes BTW? I welcome the 4K/120p definitely. And it's great there is no crop, finally. But none of this matters if you can't get the shot or it lets you down at a key moment! In my view it is a complete mess. They have traded reliability in order to put an 8K badge on the box! Anyway, let's see how the EOS R6 performs and what the lower quality 4K modes are like on the EOS R5 in terms of overheating problems before completely writing it off.

It is important to know about this because the pixel binning 4K mode will surely be less demanding on the sensor and image processor = less heat!

Perfect camera for Eskimos Until it melts their house.

Does anybody have a screen shot showing it? Any videos out there? Is it in the official Canon info? I can't find it. If there is a 4K/24p pixel binning mode it might solve a lot of issues. Better rolling shutter and less overheating for example.

INNOVATE. DOMINATE. EXPLODE.

Yup. Informed decision is what this is all about. No unnecessary bias, just the facts, however negative they may be. Peter McKinnon in the cool April Canadian breeze on his yacht noticed the overheating - so why didn't he dig a bit deeper and give us any info whatsoever on how this occurred, in what mode, after how much time and on what type of shoot? (Well we can guess what shoot - Canon advert!) Instead he immediately moves onto how great the small body is and how it has to be small so can't have a fan! The sheer cheek of it. He thinks we are that stupid! Some people may not like the facts, but when the problem bites them on the arse in the middle of a shoot I hope they'll remember my blog and how many of the shill-types glossed over it.

Oh that's ok then 🙂 Just ignore all the best modes on your shoot, and use the pixel binned 4K modes with lower image quality. May as well use the EOS R6 for the 4K/24p and save yourself $2000, no?

Bring it on. Internal 10bit ProRes 422 (HQ and LT) GH5S oversized low light sensor. Next gen of IBIS Phase-detect AF. Under $2k. Now THAT is something to look forward to. Forget the £4000 fancy pants hand warmer.

LOL Do you think Canon's marketing would tell you?! It's buried deep into the CVP launch video around the 23:00 mark And comes from manufacturer tests with the actual final camera. "CANON have given us information on how long we can expect to get out of this camera"

"Little issues" Is it just me or does the information I posted on the blog post indicate a complete show-stopper of an issue? Even a music video shoot can take for hours where the camera is constantly turned on. One take after another. I can see the overheating problem happening then too, about an hour into the shoot if the camera has been busy, and not just in 8K. The oversampled 4K and 4K/60p are a problem too. The heat build up from multiple short clips will most likely be similar to the continuous recording issue. It was with the A6300. So I'd highly recommend seeing if it is up to the job before committing to it and selling RED gear. You'd expect for £4000 the Canon would provide a bullet proof professional 4K camera - it's what we expect. But it seems they forgot the bulletproof bit this time. Bit of a u-turn hey? This time it's the Canon Cripple Flamethrower! FEEL THE HEAT

Sounds like you're the one with wild speculation that it's the sensor and not the processor! All I know is that a smartphone can encode 8K in H.265, and that it is the most computational demanding task in the camera. The sensor readout for 8K can also be done in a smartphone form factor. The EOS R5 has no excuses for not properly managing the heat.

The guy probably peeled it off "Nothing to see here!" BUY IT NOW

It's hilarious. For years Canon have been the conservative ones, telling us they are not doing this or that for reliability reasons or waiting to get it bullet proof. Holding back on video specs to avoid reliability problems has been the Canon mantra! Then they do a complete U-turn on reliability just to put an 8K badge on the box 😂 The EOS R5 is a pro's camera. It isn't a $1000 A6300 toy. If it lets you down on a shoot that is a total disaster and something no pro would consider working around. How would you work-around it anyway? An icepack? A nice breeze? Put it in the same bucket as the lobster in the catering tent? I think some people are in denial He hasn't even used it yet

Nitpicking? Don't shoot the messenger! It's hardly nitpicking if the camera goes off in the middle of a shoot is it? What happens if you lose a shot and have to down tools for 10 minutes, and then can only go for a few minutes more before the same happens again? How in any way is that fit for purpose professionally or for paid work? And for live stuff, documentaries, interviews, it's a complete no-go, even in 4K. I'd much rather have a fan in there like the Panasonic S1H and know it is fit for paid work, or even Netflix. Can you imagine the EOS R5 getting Netflix approval, only for the entire production to be downed countless times in one session due to the overheating problems?

Will it be shot in 10 second chunks in-between 10 minute tea breaks? 🙂

Smartphone H.265 encoder / CPU are off the shelf components and not even expensive. Look at BOM cost for a Samsung S20. Nothing to stop Canon from using latest 7nm node manufacturing if they wanted to. The EOS R5 overheats because it is not the latest cutting edge silicon. Frankly, for £4000 it should be!

Dude it doesn't matter if you can't shoot! Dead camera on set. Dead camera at wedding. Excuse me priest! HALT the ceremony! My EOS R5 has overheated!

S1 / S1H with 180fps full frame anyone?

Did I miss something and the 4K/24p can have oversampling turned off? Because it doesn't look like that's the case. The non-oversampled pixel binning modes are reserved for achieving 4K/60p and 4K/120fps slow-mo

Surely you should get a better understanding of how CPUs and hardware H.265 encoders work. The H.265 encoder applies the same complex compression formula to the same number of pixels, be it with 8K in a smartphone or 8K in something else. H.265 is basically an iPhone codec. It isn't ProRes! It remains a possibility that the EOS R5 sensor is the limitation, as a hot sensor has greatly increased readout noise. But usually the mainboard LSI, RAM and CPU and the hottest and most power hungry areas in a mirrorless camera.

The overheating information comes from a very good source, who tested the camera. CVP in the UK. Are you saying I should sit on this and not give it any attention? Not sure how that serves anybody. I have criticised Canon that's true... And finally they bring very good specs on paper to the table. But if it isn't fit for purpose on a shoot or on a set - how is it innovative or groundbreaking then? I can claim on paper to be the first camera nerd to go to the moon and set out on the journey tomorrow from my back yard but if the rocket can't get off the ground, there's not much groundbreaking about it is there? "Under market price" not sure about that - It is top of the market pricing for a full frame mirrorless camera with only 3 that are more expensive (one of them is a Leica). In terms of an 8K cinema camera yes it is cheaper than a RED. But it does't work, does it? So the mission to the moon is not accomplished.

Rolling shutter isn't on all cameras, some have global shutter! Here is a £550 smartphone that shoots 8K H.265 in a much smaller chassis https://www.amazon.co.uk/Xiaomi-128GB-Twilight-Grey（UK-VERSION）/dp/B08814LC74/ref=sr_1_2?dchild=1&keywords=xiaomi+mi+10+pro&qid=1594321255&sr=8-2 Why is that image processor not overheating? The R5 is a brick in comparison, with space for potential solutions like heat sinks, heat pipes and more space for the electronics. So why doesn't it work? Plus it is £4000 and at that price reliability is vital.

He then says in next sentence that he hasn't had the chance to record for a very long time 😂 And that Canon hadn't put a recording limit on it. Which isn't true. Besides it's the usual marketing video, so he ain't saying what modes, how long he recorded in 8K and 4K for, what the ambient temps were (looks fucking freezing from the location) or any other meaningful info that would have helped users to know the score. Typical hype piece.

Bit like the EOS R5 sensor. My point is... doesn't matter how many cameras you have round your neck during a wedding if one of them stops shooting in the middle of a magic moment. The shot is lost and you don't get to rewind the wedding or ask people to repeat stuff for your B cam.