Canon EOS R 5 Review

Canon EOS R5 Review

The Canon EOS R5 formerly had overheating issues. The newest firmware update has taken steps, but what about the actual state? Let us find out what are the real problems you face with EOS R5.

Problems with Canon EOS R5

The Canon EOS R5 is a high-profile camera. Many photographers will want to use it. However, there may still be concerns about overheating issues and constant recording times.

And, of course, the difficulty of overheating, but more importantly, it took a long time to recuperate. Many users would have wanted to know more about this. Especially in 8K RAW recording, extending the recording time can damage the sensor and internal parts of the camera.
Some users have disclosed ways to increase recording time, but hacking is not recommended in many ways.

Firmware 1.1.0

Firmware 1.1.0 Canon has extended the recording time and shortened the recovery time with the new firmware. This seems to be a significant improvement over the previous situation. If you try using a camera with the new firmware, you can see that it is positively improved. (Since then, firmware version 1.1.1 has been released)

Canon EOS R 5

Flexible camera

This is Flexible camera gives you a great deal of flexibility in choosing the resolution/frame rate/codec. Special attention should be paid to shooting in 8K RAW for the following reasons.

Overheat Issue

The overheat Issue has been reduced with new firmware which allows you to record for 20 minutes in a row. The recovery time is 10 minutes. After that, it can be recorded for another 10 minutes. This recording and recovery will be repeated for shooting. In reality, it doesn’t record that long, so it shouldn’t be a problem. The new firmware fixes two major issues. First, the recording time is not calculated just by turning on the power. Second, the camera can now sense the ambient temperature. This helps, for example, external fans to reduce recovery time.

CFexpress card

CFexpress card in the camera It also generates heat and affects the temperature inside the camera. In my tests, the results on the Angelbird CFexpress card were good. It doesn’t seem to get as hot as Sony’s Tough and SanDisk cards.

Card capacity

Card Capacity is an important factor RAW (or Canon RAW) gives you the flexibility to work in post-production, but it makes the files very large. I used four Angelbird CFexpress cards, 2TB, 1TB, 512GB, and 256GB, but I was always worried about the card capacity. Therefore, when shooting in 8K RAW, it is necessary to prepare a card with sufficient capacity. Alternatively, use the camera’s cooling period to back it up. Of course, to avoid mistakes, it’s best not to copy or erase the card while shooting, but given the high cost of the card, that’s unavoidable. For backup, we recommend a high-speed USB-C SSD.

Try to shoot

By the way, the overheating has not completely disappeared, so we need to be careful during shooting. But overall, this camera is amazing. Dual pixel autofocus works very well and is especially useful when shooting at 8K. The in-body image stabilization (IBIS) is also great, and it’s fairly stable when shooting while walking.

In the past, digital SLR cameras were also shoulder-mounted with rigs like ENG cameras, but now there is no such need. You can take stable images with just the camera, and you only have to bring the camera with you wherever you go.


It will continue to develop in the future. Ideally, there should be no limit on the recording time, but this would make the camera larger. For that reason, the Cinema EOS series exists. However, for video creators who shoot with a small camera, the mirrorless camera is the main camera. As previously announced, the next EOS R5 firmware will be able to record RAW at lower data rates, allowing for longer recording times. I want to expect it.

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