Overheating of the EOS R5 While Photographing and the Solution

Do you have a Canon EOS R5? Then you are probably aware of the overheating issues while shooting. It’s okay if you’ll never use the video feature. But what if an overheating warning occurs while shooting? I experienced this situation and I have the solution.

The Canon EOS R5 is an excellent camera. I loved it from the start, when Canon Netherlands sent one to me for review. I photographed a few weddings with this camera during the review and decided to replace my Canon EOS 5D Mark IV. You can find my review here on Fstoppers.

There is a big problem with the Canon EOS R5. When filming, the camera tends to overheat. If so, you won’t be able to use it until it cools down. It may take about half an hour. Canon has released a few firmware updates, but the camera’s cooling ability doesn’t match the amount of heat it generates.

Overheating issues when shooting

If you don’t like filming, overheating issues won’t be a problem. That’s why I didn’t worry about it when I decided to buy this camera, until I got assignments to film corporate interviews. If I use 4K 25p resolution, it works great, and that’s good enough for me. Most overheating will occur at 8K, 4K 100p, 4K 50p, and 4K 25p HQ resolution.

Overheating also depends on how the camera is used. Are you recording internally or externally, and in the latter, do you have a memory card in the camera or not? Ambient temperature also has a significant effect.

But when I was shooting a wedding with high ambient temperatures, I got the dreaded overheating warning sign on both of my Canon EOS R5 cameras, even though I wasn’t shooting any movies.

Overheating Overheating when shooting

The wedding took place on a very hot day in the Netherlands. Ambient temperatures rose to 33 degrees centigrade. The sun was burning in the sky and there was no wind at all. I didn’t worry, as I have already photographed many weddings under similar circumstances with the Canon EOS R5.

But this time I got the overheating warning icon on both cameras. This happened just before noon, after three hours of shooting indoors and outdoors in bright sunlight. It worried me, to say the least. What if both cameras stop working somewhere during the day?

I kept shooting, of course. And luckily, both cameras continued to work without any issues, except for the warning sign, of course. The memory cards were warm, which was to be expected, and the camera grip was also warm from holding the camera down for a long time. But this warning sign was not comfortable at all. What was happening? What was the reason for this warning?

What does the listening icon tell us?

In reality, there doesn’t seem to be any problem at all. It turns out that the icon is just a warning to the photographer about the temperature of the camera. If you look closely, you will see a video camera in the icon, not a still photography camera.

After some research on the internet, I found more information about this warning sign. It tells the photographer that the camera has reached a high internal temperature and switching to video may cause it to overheat. The warning has nothing to do with photography.

Custom video settings

When I asked colleagues who also use the Canon EOS R5, most of them never saw the overheating warning sign while working. There are some who also shot a wedding the same day as me. But these colleagues have never used the video functions of the Canon EOS R5.

Since I also use the camera for filming, I programmed the camera for three different film settings. I used the C1 setting for 4K 25p, the C2 setting for 4K 50p, and the C3 setting for 4K 100p. This allows me to change movie settings without diving deep into the menu.

Two of these films create a risk of overheating. And it turns out that these programmed parameters are responsible for the overheating warning signal when shooting. The camera reacts to these programmed settings and warns the photographer of the risk of overheating when switching to one of these custom settings.

If you have not programmed the C1, C2 and C3 to film, the camera will not display the overheating warning if you are shooting.

The solution for the overheat warning when shooting

Although the camera doesn’t do much beyond an overheating warning when shooting, it can be quite distracting. You might even worry too much during a wedding photo shoot or something similar, not realizing why the sign is displayed.

To get rid of the sign, you need to clear the C1, C2, and C3 settings, or you can change the movie format to something that isn’t sensitive to overheating – the FHD 25p setting, for example. This way, the camera will no longer show this overheating warning during photography.

But if you have no problem with the sign displayed in the viewfinder or on the LCD screen, just leave the C1, C2 and C3 settings as they are. You don’t have to worry about the camera shutting down as long as you stick to photography.

Have you come across this Canon EOS R5 overheating warning sign while shooting? Please share your experience in the comments below.

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