R6 (and maybe R5) overheating issue

Here is the followup article on the teardown of the R5, this time we get to see where all the heat is. This shows that indeed there is a heating and cooling issue, and Canon isn't simply restricting the camera for the fun of it.

https://wordpress.lens​rentals.com …e-canon-r5-heat-emission/

Something nobody has talked about is that warning label that is located behind the flipout LCD. I didn't notice it until I was cleaning the camera after taking it out, and noticed that label that warns that the shell behind the LCD can get very very hot. That is likely due to the CPU heat that you see in the article heating through to the back shell.

https://www.cined.com …ating-questions-answered/

“This is where we come to the first of the two governing factors that affect the cameras when it comes to overheating. Holding a very warm object for an extended period has the potential to result in what is known as low temperature burns. Secondary is to protect the internal components of the camera from the overheating. We limit how hot the external body of the camera can get to protect users, which is one of the causes of overheat shutdown. Some heat management must also be applied to ensure the camera continues to operate.”

“It is important that we evaluate the primary customer for each product and decide what features would be required by that typical user. We do not ‘cripple’ our cameras, our aim is always to focus the product better to the typical user.”

I really like my R6 so far, I just wish it had a bit more resolution, like what the R had.

I have configured it very close to what I feel will be its final configuration, all buttons assigned, modes set up, etc.

idkdc wrote in post #19123276
https://www.cined.com …ating-questions-answered/

“This is where we come to the first of the two governing factors that affect the cameras when it comes to overheating. Holding a very warm object for an extended period has the potential to result in what is known as low temperature burns. Secondary is to protect the internal components of the camera from the overheating. We limit how hot the external body of the camera can get to protect users, which is one of the causes of overheat shutdown. Some heat management must also be applied to ensure the camera continues to operate.”

“It is important that we evaluate the primary customer for each product and decide what features would be required by that typical user. We do not ‘cripple’ our cameras, our aim is always to focus the product better to the typical user.”

So who is going to by-pass the cameras safety systems?

Darwin Award photographers

Jared5 wrote in post #19121873
Good news about the R5 firmware update when shooting stills. The new firmware seems to have prevented the temperature warning icon showing up.


Yesterday I shot a short wedding with one EOS R5 body (A) with firmware 1.1.0 and the other EOS R5 body (B) with firmware 1.0.0.

After about 285 images (cameras were both powered on for 2 hours by the time I noticed) I saw the temperature warning icon on my B camera (firmware 1.0.0).

Hosted photo: posted by Jared5 in
./showthread.php?p=191​21873&i=i72653208
forum: Canon Digital Cameras

The A body with firmware 1.1.0 did not have the temperature warning icon on at all, and I had even shot more images with that body.


Here's the breakdown:

• EOS R5 (body A) - firmware 1.1.0 - powered on for 2 hours - 594 images shot - no temperature warning
  
• EOS R5 (body B) - firmware 1.0.0 - powered on for 2 hours - 285 images shot - temperature warning
  

After getting the temperature warning icon on camera B I was able to power it off and back on again a few seconds later and the temperature icon was gone.

Also, camera B slightly froze up on me. I say slightly because by the time I pulled my phone out to take a picture of the frozen screen (which was like an instant playback of the last image I took) it cleared up and I was able to continue shooting. I wanted to take a picture with my phone to reference it before pulling the batteries, and even though my phone is in a holster on my belt I was still not able to get a picture of it before it cleared up.

No temperature or lockup issues with camera A and the most recent firmware.



For those following along...
Yes, the two batteries in the grip were at about 50% capacity after the camera was on for a little over 2 hours and I'd only shot 285 images.

I should have compared battery capacity on both bodies at this point but I was too busy to think about it but I did change the batteries in camera B before the wedding was over. I didn't run the batteries all the way down to the blinking red battery indicator but I didn't want to push it to that point so I changed them out a little early. Camera A didn't require a battery change at all.


As tempted as I am to upgrade the firmware in camera B I'm going to test it out one more time at another wedding this weekend and see what else I can learn before upgrading.

I need to do more testing but it seems the 1.1.0 firmware isn't perfect when it comes to the temperature warning based on my experience over the last 3 days.

Thursday I did a brief corporate headshot job (I'll get into the wireless tethering issues later) and I had to tether via USB-C cable, which worked fine. What I did notice is that after shooting TETHERED for about 30 minutes (5:17pm to 5:45pm)) I got the temperature warning icon. This is with EOS R5 body-A, which has firmware 1.1.0, and I did not expect this to happen. I could definitely feel the body getting warm quickly into the shoot (which only lasted 30 minutes).

Jared5 wrote in post #19124423
I need to do more testing but it seems the 1.1.0 firmware isn't perfect when it comes to the temperature warning based on my experience over the last 3 days.

Thursday I did a brief corporate headshot job (I'll get into the wireless tethering issues later) and I had to tether via USB-C cable, which worked fine. What I did notice is that after shooting TETHERED for about 30 minutes (5:17pm to 5:45pm)) I got the temperature warning icon. This is with EOS R5 body-A, which has firmware 1.1.0, and I did not expect this to happen. I could definitely feel the body getting warm quickly into the shoot (which only lasted 30 minutes).

Hosted photo: posted by Jared5 in
./showthread.php?p=191​24423&i=i151961630
forum: Canon Digital Cameras

Friday I recorded some video (1080 at 24fps) with both R5 bodies and didn't have any issues, nor did I expect any issues. I could feel the bodies get warm but that was about all. Also recorded with the EOS R and didn't feel the body get warm after recording for the same length of time.

Yesterday (Saturday) I shot a wedding (in the middle of the smoke-filled skies of Western Washington) and the temperature was cooler than usual thanks to the smoke. I could feel the bodies heating up after about 30 minutes or so but never got the temperature warning icon on either of them, probably because of the lower ambient temperature. I halfway expected to see temperature warning icon on EOS R5 body-B because it's still running the original firmware.

Thank you for continuing to share your experiences. I am sure it is helping a lot of folks

Jared5 wrote in post #19124423
I need to do more testing but it seems the 1.1.0 firmware isn't perfect when it comes to the temperature warning based on my experience over the last 3 days.

Thursday I did a brief corporate headshot job (I'll get into the wireless tethering issues later) and I had to tether via USB-C cable, which worked fine. What I did notice is that after shooting TETHERED for about 30 minutes (5:17pm to 5:45pm)) I got the temperature warning icon. This is with EOS R5 body-A, which has firmware 1.1.0, and I did not expect this to happen. I could definitely feel the body getting warm quickly into the shoot (which only lasted 30 minutes).

Hosted photo: posted by Jared5 in
./showthread.php?p=191​24423&i=i151961630
forum: Canon Digital Cameras

Friday I recorded some video (1080 at 24fps) with both R5 bodies and didn't have any issues, nor did I expect any issues. I could feel the bodies get warm but that was about all. Also recorded with the EOS R and didn't feel the body get warm after recording for the same length of time.

Yesterday (Saturday) I shot a wedding (in the middle of the smoke-filled skies of Western Washington) and the temperature was cooler than usual thanks to the smoke. I could feel the bodies heating up after about 30 minutes or so but never got the temperature warning icon on either of them, probably because of the lower ambient temperature. I halfway expected to see temperature warning icon on EOS R5 body-B because it's still running the original firmware.

Interesting

and NOT GOOD NEWS

Shooting tethered. were you in live view ?? Someone reported earlier that this was a problem in Live view. Definitely NOT like hearing its hot at weddings. Its my biggest concern.

R6 won't dissipate heat as well, I believe, due to its more polycarbonate build over the R5.

TeamSpeed wrote in post #19124514
R6 won't dissipate heat as well, I believe, due to its more polycarbonate build over the R5.

So you think its going to get hot more so than the R5

That would absolutly suck

TeamSpeed wrote in post #19124514
R6 won't dissipate heat as well, I believe, due to its more polycarbonate build over the R5.

Has Lens Rental done a tear down of the R6? What I noticed about the R5 was lack of space and crammed chips on the main PCB and daughter card. The theory was that the daughter card could handle power as well (in which the R5 could generate more load with its need for larger MP/8K video). All of this is to say that perhaps the circuitry in the R6 is simpler and/or has less load: that it could produce less heat.

umphotography wrote in post #19124458
Interesting

and NOT GOOD NEWS

Shooting tethered. were you in live view ?? Someone reported earlier that this was a problem in Live view. Definitely NOT like hearing its hot at weddings. Its my biggest concern.

My understanding is that with mirrorless bodies the camera is essentially in Live View whenever it's powered on. I configured the EOS R5 (like I did with the EOS R) to allow me to MANUALLY switch between EVF and LCD because I don't want the uncertainty of the camera doing it without me telling it to. I posted more info about this EVF/LCD switching here: https://photography-on-the.net …showthread.php?​p=19124630


To answer your question more directly, I was constantly in EVF mode. I only turned the LCD screen on once when I wanted to review an image for a subject who was seated (I didn't want them to get up and look at the laptop yet). Other than that the LCD was off the entire time and I was only using the EVF.

Could it be because the EVF uses more battery power than the LCD?
Could it be because I have the highest quality setting selected for the EVF?

I suspect those contribute toward it but not sure why I got the temperature warning icon in only 30 minutes, and even with the new firmware.
Maybe tethered shooting causes the EVF to stay on continuously and that contributed to the rapid heating.

I'll keep testing and see what I come up with. I'm still happy I have the EOS R5 bodies and don't have any regrets. I find some of this stuff really quirky but that's the price of being an early adopter. Other than making sure I have enough batteries (and I have plenty of the new batteries), I don't feel uncertain of the reliability of the EOS R5 and wouldn't hesitate to use it on any job I would have taken my 5D Mk4 on (as long as I have enough batteries).

davesrose wrote in post #19124609
Has Lens Rental done a tear down of the R6? What I noticed about the R5 was lack of space and crammed chips on the main PCB and daughter card. The theory was that the daughter card could handle power as well (in which the R5 could generate more load with its need for larger MP/8K video). All of this is to say that perhaps the circuitry in the R6 is simpler and/or has less load: that it could produce less heat.

Based on the fact that the R6 also overheats, has the same AF system, deep learning, IBIS, same burst rates, I suspect that the simpler items would be the sensor, EVF, cards slots, fewer videos modes, and smaller rear screen, and some of those might change the overheating recipe a bit.

I recently switched to capture one for tethered shooting. The EVF and LCD are switched off with C1 when using liveview.

My findings are largely anecdotal because I’m working, but it does seem to help. It still throws up the OH warning, but it’s longer than 30 minutes now.

Also I stumbled across this:
https://youtu.be/QkPcY​gi1Vbg

It’s about what we all assumed by now. External cooling does help.

TeamSpeed wrote in post #19124641
Based on the fact that the R6 also overheats, has the same AF system, deep learning, IBIS, same burst rates, I suspect that the simpler items would be the sensor, EVF, cards slots, fewer videos modes, and smaller rear screen, and some of those might change the overheating recipe a bit.

I suspect the R6 can still overheat due to also having cramped electronics. But it would seem that utilizing 8K with the R5 could be more significant: requiring 4x the bandwith as 4K should have some noticible increase in power load. There would also be more processing with bursts at 45MP vs 20MP.