Canon EOS R5 overheating warning occurs after 0 minutes, following 1 hour photo shoot of 30 photos says Gerald Undone

This light usage in summer weather by Gerald Undone (one of the very few to properly test the camera, including Canon themselves?) further demonstrates the seriousness of the EOS R5’s overheating defect and could be grounds for a product recall.

This is the first test that shows the camera doesn’t even have to shoot a single frame of 8K or oversampled 4K before it becomes too hot to operate in those modes.

It really goes to show how deeply inadequate for professional work this camera is.

Just being on in live-view seems to be enough to generate temperatures inside the camera of over 80 degrees Celsius, the critical point where most hardware begins to thermally throttle. Of course this is all easily avoidable, if the camera had followed a high-end smartphone copper passive heat dispersion design inside the chassis, which is standard across all industries, in nearly all small electronic devices that have fast processors. Even a high-end smartphone such as the Xiaomi Mi 10 Pro which shoots 8K video has a passive copper heat sink. If there is room in a smartphone as thin as that, there is room in the comparative brick that is the EOS R5. Any Canon representative or ambassador that implies otherwise is either lying or just naive.

I do not accept being lied to by a camera company.

I don’t believe Canon’s reasons for not including the necessary passive cooling design. Thin sheet of copper to conduct heat away from source, away to a small radiator connected to the casing to spread the heat out and allow it to disperse into the air. No fan, no vents necessary. If this isn’t enough to deal with the amount of heat generated by DIGIC X, the solution is to use a more modern processor and more modern manufacturing process node such as 7nm, for more efficient and cooler running silicon.

That a camera company should be honest also applies to their marketing claims, as well as the features on the specs sheet. If I buy a camera that promises high quality oversampled 4K, I expect it to deliver that under normal usage in summer.

The camera can continue to shoot stills, says Gerald, but only 30-40 images into the shoot the video mode is basically crippled with only the low quality pixel binned 4K, 1080p and APS-C crop video modes available for use. So this is the situation on a supposably cutting-edge $4000 camera where you pay a lot of extra money to get the better video features. The pixel binned 4K mode (up to 30p only) is about equivalent in quality to the Sony a7R II from 2015.

Who is responsible for this decision at Canon and who do they think they are kidding? The total and utter disregard with which they treat their customers. No customer, either pro or consumer can accept this state of reliability – not in a camera, not in a laptop, not in a car, not even on a smartphone camera. The professionals and enthusiasts this $4k camera is aimed at care deeply about reliability. They want to be able to use what they paid for – the highest quality video modes as advertised – and if they are going to cut off then the cut off has to be the same and predictable in all ‘regular’ shooting conditions. Summer isn’t an extreme shooting condition. It’s a common one. So a predictable 20 minute cut off on the 8K and 30 minutes on the 4K – if it actually behaved like that – would at least have been manageable and predictable, although still limiting.

But never knowing if you will even get 0 minutes after 30 photos depending on the weather? It is an absolute scandal and a disgrace.

This is a $4000 camera with mostly $2500+ lenses! Advertised with cutting edge video features! Give me a break Canon.

Recall it. Take it back to the damn factory. And start again.