It might be the cfexpress chipset is not Canons, and as I and others have mentioned, the device is kept active even if it is not being used. Whether Canon can disable that and grab back some power and this heat, who knows.I'm really curious about what's going on here, but here's my theory. Let me know if this sounds crazy...
Is it possible that something in the firmware is constantly making the DIGIC chip encode a stream of data encoded to H.264, H.265, or the raw file format even while the camera is not recording? In theory this could have been intended to minimize delay when the user pushes the record button, thus sending the data to start writing to the card. Think of the encoded data stream like a hose that is just constantly on, spraying water into the back yard until the user decides to put the hose in a bucket and start filling up the bucket.
My theory is that the removal of the card is a bug that turns the hose off, but that bug could be the firmware fix to the whole problem. In that case, the firmware fix could simply be to change that behavior so that the CPU-intensive encoding work doesn't start until the user hits record. The tradeoff would be that it might take longer to get a recording started.
For context, I know that when I'm using my friend's Sony FS7 on film sets, I press record and have to wait a second or two as the tally light blinks and then goes solid before I can be confident that the recording has started and thus before I can call out "camera speeding." Some consumers/non-professionals who buy the R5 might get upset if they miss a moment because the camera didn't start recording the instant they hit the record button.
Really interesting, thanks for sharing. If you get chance to replicate and reproduce that would be even more awesomeI had a situation where I filmed LQ 4k 30p for about 2 hours straight, in those two hours after about an hour I got locked out of all the HQ modes, and got the overheating warning when I switch to them. But an interesting thing happened. When I switched my battery after 2 hours it instantly gave me 20 minutes of 8k and 7 minuts of 4k120, althought 10 minutes before when I tried to use those modes while the first battery was in I could not do any filming in those modes. After 20 minutes of 8k it heated again I continued filming with the second battery in LQ 4K until it drain (it was an older battery so it lasted about an hour of footage) I tried to replicate the same thing with a third battery and I could not do it.
It seams that with the first changing of the batteries I trigger some bug or sort of a bug that managed to resetet the cameras heat control which definitely suggest that there is room in software for improvement.
Thanks for the practical info from someone who uses it.
When you use the atomos, or any HDMI out on a Canon, does it switch off the evf and back display, ie you have to use the atomos to monitor what you’re recording?
Thanks for replying, appreciated. I guess I was trying to figure out if the atomos could act like a recorder and you still use the camera display(s) and thus it could be “hidden” away.Im not sure with the R5 as I don’t shoot Canon right now, but Sony has a few quirks.
Only the A6600/r4/a9/a9ii can record internally while outputting over HDMI. Older Sony cameras turn off the rear lcd once the rec button is pressed. Also, in 4K, recording internally with HDMI disables Face AF and Eye AF. This is fixed on the A7sIII as tested by Philip Bloom most likely due to the new processor. I think these cameras all have relatively limited processing power. Maybe the R5 is better, but I haven’t seen any tests yet.
Why do you fly with the ssd external? For faster swapping or have you found a way to load larger SSD's into the canister and fool the I2 into thinking its straight from DJI?
Here is a second video from Vistek where they did the same thing (he didn’t run a torture test but ran it for 2 hours without breaking a sweat)
Canon R5 Redux: Deep Testing Overheating, Resolution, and Auto Focus.
This is huge news and hopefully we will see more workarounds like this!!
you see. you would neI have no issue with Canon offering a service centre option (cost $500?) to retrofit with substantial longer video times. Ideally with HDMI2.1. They did it with initial 5Div upgrade to Canon log for $99 (plus shipping). This wasn't a simple firmware upgrade. Canon then baked in the upgrade for new versions and increased the cost from $3500 to $3600. That would be acceptable if the change is only $100. if more then....
Or, Canon could then have 2 models R5 and R5v (see the v = video and also 5 )
Or, Canon releases a grip with built-in peltier fan cooling connected to the tripod mount/ base plate for $500. Preferably with 2 batteries or maybe just 1 would give you 2 hours of recording
And/or, Canon could also now announce a partnership with Atomos etc for a compatible video solution with longer times
An external recorder Inbuilt directly in battery grip.What does a battery grip have to do with it?
This is actually great news, this means I can use my R5 with my atomos for a more serious work.
Although the skipped line 4k is good enough for a lot of work, this is even better. So basically that means all 4k modes except 120p are basically available all the time.
To bad the R6 did not score that great times with the external recorder.
Since R5 is basically the best all-around photo camera today and with this setup I would say it is maybe even the best hybrid camera today it will be a bit large set up for photo/video jobs if you do both at the same time. But If I get two I'm covered.
And if they unlock 120 fps to external recording this is the perfect camera for my needs
Thank you Wayne for this info.
So I've done another test, I took my sandisk CF-express 256gb card filled it full capacity and done a transfer of all the files to my MacBook pro which made it really hot to the tuch also reduced the speed of the transfer after I tried to put something back to it. The most interesting thing was the fact that I could not use any HQ modes on my R5 that was siting since last night on my desk in a shaded room. It seams that definitely the problem with overheating comes from the cf-express card and the communication of the camera with it.
This feels like the web's collective effort to figure this out, just like when Everybody in the world was searching for MH370.So I've done another test, I took my sandisk CF-express 256gb card filled it full capacity and done a transfer of all the files to my MacBook pro which made it really hot to the tuch also reduced the speed of the transfer after I tried to put something back to it. The most interesting thing was the fact that I could not use any HQ modes on my R5 that was siting since last night on my desk in a shaded room. It seams that definitely the problem with overheating comes from the cf-express card and the communication of the camera with it.
Atomos can be powered by an Sony NP battery so it is portable, you just need a cage to rig everything. But it goes the same for most of the cinema cameras, without the rigging they are usually not that use-full. There is also an option to set up a rig with V mount battery that will power you camera and the atomos ninja 5.there's no portable solution though, is there? The atomos has to be connected to pc? I can't haul my pc around on a trolly while filming at event.