Does Canon R5 Overheat In 4k?

Yes, the Canon R5 is known to overheat when shooting 4K videos for extended periods. This issue has been a significant point of discussion among photographers and videographers since the camera’s release in 2020.

This article will delve into the R5’s overheating issues, the causes, and how it affects the camera’s performance.

Understanding the Canon R5

The Canon R5 is a full-frame mirrorless camera released by Canon in July 2020. It has a 45-megapixel CMOS sensor, Dual Pixel CMOS AF, and can shoot 8K video at up to 30 frames per second. The camera has been designed to be a versatile and high-performance tool for professional and enthusiast photographers and videographers.

Overheating issues

The R5’s overheating issue was one of the most significant controversies surrounding the camera’s release. Many early adopters of the R5 found that when shooting 4K video for extended periods, the camera would overheat, and a warning message would appear on the screen.

The camera’s firmware update 1.1.0 aimed to address the overheating issue, but many users found the update insufficient, and the camera continued to overheat during extended 4K video recording.

Causes of overheating

There are several reasons why the Canon R5 overheats during the 4K video recording. However, the main reason is the camera’s high internal processing power, which generates a lot of heat when processing and compressing 4K video data.

Another reason is the camera’s small body size and lack of internal cooling systems. The R5’s mirrorless design means less space for internal cooling systems, making it challenging to dissipate heat efficiently.

The R5’s video recording capability significantly contributes to its overheating issue. Shooting 4K video requires a lot of data processing and substantially strains the camera’s internal systems, leading to increased heat generation.

Effects of overheating

The R5’s overheating issue affects its performance and usability when shooting 4K video. When the camera reaches a specific temperature, it will automatically shut down to protect itself from damage.

This is a significant issue for videographers who must shoot uninterrupted footage for extended periods. In addition, the camera’s overheating problem means that videographers must interrupt their work regularly to let the camera cool down or use external cooling systems, such as fans.

Moreover, the overheating issue has also caused some users to lose confidence in the R5’s reliability, affecting their decision to purchase or use the camera.


The Canon R5 is a powerful and versatile camera, but its overheating issue during extended 4K video recording has been a significant point of discussion since its release. The causes of the overheating issue are mainly due to the camera’s high internal processing power, small body size, and lack of internal cooling systems.

Overheating affects the R5’s performance and usability, making it challenging for videographers to shoot uninterrupted footage for extended periods. Canon has attempted to address the issue through firmware updates, but some users have found that these updates are insufficient to eliminate the problem.

Overall, the R5’s overheating issue is a significant drawback for the camera, and potential users should consider the issue carefully before making a purchase decision.

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