Andrew Reid

Doesn't look too bad to me.

Shall we make a list? S1H GH5S GH5 GH4R X-T4 1D X Mark III / II 1D C And so on

4K 120fps full pixel readout? Yes please. Sounds like a much better option than EOS R5.

The Sigma Fp records internal RAW and is the size of 2 decks of cards!

Same overheating and rolling shutter problems to the 4 years old $1200 Sony A6300.

The Canon EOS R5 works in mysterious ways. Canon chose to implement 8K and 4K/120p on this camera knowing that heat build-up will make for some short recording times. This was a risk, because the perceived hit to reliability can generate a lot of bad publicity. What was Canon thinking and what else does the camera offer for when more reliable recording is needed? New blog post: https://www.eoshd.com/8k/a-closer-look-at-the-canon-eos-r5-lower-quality-4k-mode-to-avoid-thermal-cut-off/

Top Gear and The Grand Tour - two of the biggest TV shows on the planet, use a GH4 / GH5 inside vehicles.

Thanks for this. Well... It will be interesting to see how the quality differs. I am expecting the pixel binned 4K modes to be roughly similar to the A7R IV, but with a 10bit codec, or the Leica SL2. There will be some moire and aliasing. But might not be too bad. This is one way to get away from the hot potato 4K HQ mode

Plus it runs off a GH2 battery. Incredibly efficient processor and sensor. Quite amazing really. The EOS R5 could learn a lot from it.

https://www.eoshd.com/news/schneider-xenon-full-frame-cine-lenses-fire-sale-in-europe-e7950-for-set-of-5-lenses-e1590-euros-for-one/ Thanks for the find @Seb Farges

Thanks for that. So it does need quite a bit of space to move out of the way after all. Solution would be to have the camera be wider, with larger back screen, and slide the internal filter to the right towards the grip.

All a lot more sensible specs than 8K.

And boom...I see they locked the thread! (DPreview) 😂

New blog post with the latest test results. https://www.eoshd.com/news/the-canon-eos-r5-overheating-impact-on-different-types-of-filmmaking/ The 4K/120p goes for 15 minutes. What I need to test is whether you can shoot 10 seconds here, 20 seconds there, with short breaks in-between for the duration of a shoot. Because if that produces too much heat we are truly stuffed.

When it dies in the middle of a shot will the first thought be "I am glad Canon pushed the camera industry forward" or will it be "why did I spend £4000 on this thing which Peter McKinnon said was THE GRAIL CAMERA"?

Is that a weird menu bug or what?! Total rec time: Zero! It's a new marketing feature for Canon - 8K 60p for zero seconds! YouTubers will go wild for it.

Indeed, as a crash cam - it'll probably have to roll for a good 10-30 minutes before the action is initiated. There will be a point where it's out of reach for the operator, and has to be rolling. But the rest of the sequence might not be set up and ready to go yet. The crew can't be bothered to make sure the EOS R5 on set is the last to roll. They will just use a different model. Simple as that.

I don't agree at all. Even when you edit an interview down to 10 minutes, conversations can go on for much longer. To get the required information, the subject often has to be conversed with and prompted. Documentaries a case in point. The multiple cameras just makes the situation worse. If you have to keep stopping, restarting and syncing 3 or 4 cameras every 20 minutes, that is seriously distracting - and not just for the crew but for the subject as well. When it comes to the edit all these files will be broken up from multiple cameras into 20 minute chunks and it makes the edit harder. Canon probably realise all this - they still want pros to buy the Cinema EOS cams instead. Even though the EOS R5 is £4000!

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.