EOSHD testing finds Canon EOS R5 overheating to be fake

[Andrew Reid]

EOSHD testing finds Canon EOS R5 overheating to be fake, with artificial timers deployed to lock out video mode. In this test, we will probe my Canon EOS R5’s actual internal temperature in Celsius, as reported by the firmware.

This week CDA-TEK and I are developing an Android app for the Canon EOS R5, which connects to the camera via the Canon API...

Please read the rest of the article on the blog carefully before commenting below

[Yurolov]

Wow. The plot thickens. Great write-up, Andrew. 

[Video Hummus]

This is incredibly interesting. Would be nice to have a third party try this out and see if the results are replicated.

I think this next firmware is going to “fix” that EXIF temperature reporting. Why the fuck did they implement this absurd recovery timer. It’s beyond the realm of defense for being a “conservative” feature to protect the camera from overheating. It’s straight up bullshit, it seems.

Great stuff.

[hijodeibn]

F..K canon, I can not accept this kind of scam, if the new firmware do not remove the time limit hack I hope people do not buy this camera. 

Great work Andrew!

[Brett Munoz]

great job here, if true then fu** Canon!

[Andrew Reid]

If there is indeed a hardware problem such as the LSI running too hot or certain parts of the chip not turning off when idle, then Canon may have originally developed this kind of temperature monitoring system to keep things in check.

But the fake element of it is that the actual temps my camera is reporting are nowhere near problematic and the recovery timer is completely out of whack with both ambient temps and the actual cool down temps of the electronics.

So it is likely they found a convenient outlet in the temp management system for a classic Cripple Hammer.

I want answers from Canon and I will be seeking them starting tomorrow.

[Snowfun]

How did you test whether the temperature reported by the Canon firmware is an accurate measure of the temperature of whatever component (or part thereof)  it purports to measure?  I’d be reluctant to rely on that reported temperature when making conclusions. It would be preferable to measure the temperature independently. 
But that notwithstanding, interesting stuff! 

[Ben i B]

Wow. I thought they just did a bad job with this camera but if your findings are correct I’m really done with canon. Good there are some other Japanese companies we can rely on. Greetings from Neukölln ;) 

[Video Hummus]

2 minutes ago, Snowfun said:

How did you test whether the temperature reported by the Canon firmware is an accurate measure of the temperature of whatever component (or part thereof)  it purports to measure?  I’d be reluctant to rely on that reported temperature when making conclusions. It would be preferable to measure the temperature independently. 
But that notwithstanding, interesting stuff! 

Yes I agree. But how? I’m not sure you can take off the back panel and expose the PCB and keep everything working. You would need to take temperature readings from inside.

[Andrew Reid]

The temperature reported by the EXIF data more-or-less corresponds with the Chinese heat gun thermometer tests out there as well and it closely resembles the ambient temp of my room at the moment, I am sweltering in 30 degrees heat!

I suppose the easy test would be to cool the camera right down in a freezer, quickly take 1 shot then analyse that EXIF data.

It is very unlikely the camera is reporting wrong data in the EXIF. It is very basic to get right, even for Canon.

[Ben i B]

7 minutes ago, Andrew Reid said:

If there is indeed a hardware problem such as the LSI running too hot or certain parts of the chip not turning off when idle, then Canon may have originally developed this kind of temperature monitoring system to keep things in check.

But the fake element of it is that the actual temps my camera is reporting are nowhere near problematic and the recovery timer is completely out of whack with both ambient temps and the actual cool down temps of the electronics.

So it is likely they found a convenient outlet in the temp management system for a classic Cripple Hammer.

I want answers from Canon and I will be seeking them starting tomorrow.

+1

[BTM_Pix]

There is also a relative relationship between the exif data temperature and the inhibitor triggers that are read from the internal temperature status monitor object.

When the temperature goes up in the exif files the inhibitions increase in the camera.

When the temperature comes down so do the inhibitions.

Its like an inverse of a beach holiday to Magaluf.

[Ben i B]

Great work Andrew. If your findings are correct it might really be the cripple hammer and that would actually be so canon like. They lost me as a customer 2014 when I bought the the a7s and sold the 5d mk 2 and mk3. I thought Japanese companies have higher standards then this. Maybe somebody will do some harakiri these days...

[sanveer]

Interesting and very shady.

So, theoretically, it can be hacked to get rid of an artificially controlled/handicapped recording limit. 

[newfoundmass]

Imagine that Canon boardroom meeting. 

"Let's create an 8K beast with little RS, RAW video, IBIS, our best auto focus ever... And then cripple it and use overheating to blame it!"

"You're a fucking genius, man. LET'S DO IT!" 

[newfoundmass]

Honestly, whether it's incompetence or intentional, the R5 should be reason enough for people to cease supporting this company until they get their shit together. 

There are companies that value their customers. Reward them instead. 

[Andrew Reid]

Just now, newfoundmass said:

There are companies that value their customers. Reward them instead. 

Absolutely.

Sigma and Panasonic are my top picks

[noone]

The thing is, if they DO fix this and own up it will be a fantastic camera and many many people will instantly forgive them.

[BWV656]

Just now, noone said:

The thing is, if they DO fix this and own up it will be a fantastic camera and many many people will instantly forgive them.

Yes. I agree. But let's be real. We are dealing with Canon here. I am 99.9999999% sure that will never happen.

[Emanuel]

Andrew's point is still valid though : )

Thanks you two @Andrew Reid @BTM_Pix for your guts and service to filmmaking, keep going your focus and hard work :- )