DPReview: Canon EOS R5 and R6 overheating claims tested: cameras work as promised – but that’s not enough

peters

EOS RP
Dec 25, 2017
480
465
Hi everybody, I'm new to this forum and just wanted to ask some questions and participate.
I'll just adapt what I posted on another site, sorry if I look lazy.
I must say there is at least one thing I don't understand in the DPReview article (though, I admit I'm far from being a video specialist). It's this part :

"
For instance, Sony says the a7 III will shoot around 29 minutes of 4K video with the temperature warnings set to ‘Std,’ while the Fujifilm X-T4 promises 30 minutes of 4K/30 and 20 minutes of 4K/60."

and a bit further...

"The fact that the EOS R5 can shoot two hours of 4K/30p footage (in line-skipping mode) when sitting in direct sunshine suggests it’s pretty good at dissipating heat."

So if it's right, it should mean R5 is able to shoot 4 times more video 4K/30p than A7III or XT-4, even in direct sunlight... is it that bad ?

And if I'm right, The R5 seems to be able to shoot in modes no other MILC is able to shoot to date.

I understand the time for having it back to normal temperature in certain conditions of usage can be a problem to some, but still, it seems we can tell, by reading tests from here and there, that this camera is outdoing what any other MILC can do today. Why concentrate then on what it supposedly can't do ? And especially when it is proven that the manufacturer clearly communicated about the camera's limitation and that this communication is recognised as true.

To my sense, it's kind of like saying Sony A9II can't do big enough prints because of pixel limitation, while most serious users report that it's a terrific camera, even for it's quite high price.
Welcome to the forum =)

Yep, you are exactly right :) The R5 is the most capably DSLM right now. The overheat "problem" is blown completely out of proportion. The camera offers runtimes in 4k60 and 4k120 that no other DSLM can reach (maybe the A7S III, which got a lower pixel count on the sensor, which makes it for most photographers not suitable). Also it offers 8k raw, which is insane at this pricepoint.
The camera operates and performce exactly as describes by canon.

The hate is only from people that will never buy or afford this camera. So far I read only positive feedback from people that actualy own and use the camera, like me :)
 

DBounce

EOS RP
May 3, 2016
386
417
"But... but... BUT WE WERE TOLD BY THE CANON MARKETING THE R5 WOULD--"
Give me a break. If you couldn't realize a non-cooled electronic device would overheat when pushed to its limits, what kind of a "professional" are you, a YouTube clickbait god?
Give me a break... did you actually think you could believe what Canon said the camera could do? I’m sorry, but in the real world this is deceptive advertising and fraud. You cannot legally claim a product is capable of functionality that it is actually incapable of.
Why would anyone defend such a practice?
 
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DBounce

EOS RP
May 3, 2016
386
417
up to 6 hours cool down? righto.. something new again... just how credible is this number one would thought?

a kettle with about 1L of water in it heated to 100C would take about 30 min to cool down at room temperature conditions. unless R5 is a double walled water flask or something..
You are make an assumption that the temperature is being reported correctly. The hardware would be defective in these cameras, or the software could be buggy. It could turn out to be a combination of issues.
 

peters

EOS RP
Dec 25, 2017
480
465
You have the camera, so you must surely agree that there is a very noticeable difference between the line skipped 4K mode and the 4K HQ mode. To my eyes the HQ mode best the Sony, whereas the line skipped mode is firmly behind the Sony. I would not pay this kind of money for the line skipped only mode.
As for cool down times... you did not experience the 6 hour cool down. That doesn’t mean it’s not true or that you won’t at some point. That’s the unpredictable part that I was talking about.
Are we to believe that all of these reviewers now just have an axe to grind with Canon? Or is it possible the issues are real?
For me it completely ruins the shooting experience when I’m constantly needing to take inventory of everything I do from the moment I switch on the camera. At minimum, the 4K HQ mode should work without fear of overheating. Stills mode should not lose quality if the camera has been running for sometime. The idea that my stills picture quality decreases when overheated is alien to me.
I did not compare it in detail with my A7R IV 4k image. But on the first look, it looks very good to me. Didnt shoot a bigger project as of now, but some days of photoshoots. I will compare it in detail in 4k HQ mode with the normal 4k mode and take a look if the benefit is worth it.
Its also noteworthy: nearly nobody watches our footage in 4k. Full-HD is totaly enough. Even channels like Tony Northrup, which got photography fans as followers with mostly bigger screens got only 2-3% views in 4k. Most views are on phones. There is nearly no benefit to deilver in 4k.
So its pretty much a luxury problem if we compare "normal 4k" and "4k ULTRA CRAZY quality". Its all better than you probably ever need. Even wedding videos are rarely watched in TRUE 4k where they could tell the difference between 4k and 4k HQ recording.
Unless you work in a higher end film-production, but than you wont pick a photo-camera for your work anyway.

The "reviewers" are just out there for clicks. All the youtube guys care only about clicks clicks and clicks. The Clickbait is insane. "Will I switch back to sony?" "The overheat is insane!" "The overheat is no big deal!" "You must watch about this dealbreaker, incredible!!!11"

Its barely anmore about photography or true video production. Its all about affiliated links. I shoot commercial productions (photo and video) pretty much every day. I have every day either a camera in my hand or a mouse to edit. While the technical aspects are certainly interesting and its nice to have a brand new camera, I miss the topic of composition and storytelling in nearly every channel.
The issue is blown out of proportion to have something to make the headlines. And maybe because some guys are jalous or disapointed that they cant film 8k raw for 10 hours straight in a DSLM.
Every working professional, who actualy owns or buys 1-4 bodies that are used daily, is fully aware of technical limitation. Especialy if a manufacturary explained these limitations in detail beforehand. You cant eat your cake and have it too. Its just unreasonable to expect 4k60 or even 8k without an overheat in one of the most compact bodies out there. For productions that are focused on this, you would certainly stick to a dedicated video camera.

However, its importat to remember that 4k60 works perfectly fine with an atomos recorder, which is a great option. Maybe even better with prores recording.
Also, there is no camera that offers 4k60 in Fullframe in DSLM body without overheat.
Canons performance is high end, not a disaster.
 

peters

EOS RP
Dec 25, 2017
480
465
Give me a break... did you actually think you could believe what Canon said the camera could do? I’m sorry, but in the real world this is deceptive advertising and fraud. You cannot legally claim a product is capable of functionality that it is actually incapable of.
Why would anyone defend such a practice?
What exactly does the camera not do, that was advertised?
The recording limits due to heat where completely described by canon, BEFORE release.
The Camera performs EXACTLY as they said it would.

Funfact: Sonys a7 series overheated often even in 4k30 and Sony did not mention that at all beforehand. It was just user reports that found out about it.
 
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Pierre Lagarde

Canon, Nikon and So on ...
Aug 4, 2020
56
78
France
www.deviantart.com
Welcome to the forum =)

Yep, you are exactly right :) The R5 is the most capably DSLM right now. The overheat "problem" is blown completely out of proportion. The camera offers runtimes in 4k60 and 4k120 that no other DSLM can reach (maybe the A7S III, which got a lower pixel count on the sensor, which makes it for most photographers not suitable). Also it offers 8k raw, which is insane at this pricepoint.
The camera operates and performce exactly as describes by canon.

The hate is only from people that will never buy or afford this camera. So far I read only positive feedback from people that actualy own and use the camera, like me :)
Reminds me a bit of what happens to 6D when it was launched some years ago. Now it will stay the best selling ILC FF forever, considering the shrinking market... hope the R6/R5 could do the same, in proportion to the nowadays figures. All this noise... Just to be clear, I'm mostly a Nikon guy these days, but I'm always happy to see other brands doing a great work. It brings choices to the table.
 

peters

EOS RP
Dec 25, 2017
480
465
Reminds me a bit of what happens to 6D when it was launched some years ago. Now it will stay the best selling ILC FF forever, considering the shrinking market... hope the R6/R5 could do the same, in proportion to the nowadays figures. All this noise... Just to be clear, I'm mostly a Nikon guy these days, but I'm always happy to see other brands doing a great work. It brings choices to the table.
Jeah, ne noise is probably only in forums. The R5 was outsold in MINUTES xD
I ordered one 5 minutes after launche and didnt get it from canon so far xD I was lucky to get it at a local store.

I always like the Nikon cameras for photo better. The D800 was beast of a camera and incredible well build. I also think competition is great. I use cameras from different brands like Canon, Panasonic, Sony and I like them all :)
 

koenkooi

EOS 5D Mark IV
CR Pro
Feb 25, 2015
1,923
1,870
[..]
Its also noteworthy: nearly nobody watches our footage in 4k. Full-HD is totaly enough. Even channels like Tony Northrup, which got photography fans as followers with mostly bigger screens got only 2-3% views in 4k. Most views are on phones. There is nearly no benefit to deilver in 4k.[..]

In the context of youtube, some creators work in a 1080p timeline and upscale it to 4k before uploading. That way youtube will have better quality at 1080p since their compression algo does a better job when downscaling instead of 1:1 encoding. So the '4k' option on youtube might actually be 1080p source material :)
 
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Pape

EOS RP
Dec 31, 2018
603
365
What if R5 was never camera canon hyped long as 8k master.
Just stil first camera with some video abilitys.
Maybe 8k monster was one they planned use on Tokio olympics to make all broadcastings with it.
Now they are on panic and not knowing what to do .
Some bosses say lets wait next summer with R1C and recall R5 to enchance its cooling bit.
And some bosses say ,there wont be never tokio olympics ,lets launch it now .
There are still one mystery R camera scheduled this year.
 
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Pape

EOS RP
Dec 31, 2018
603
365
Just saying future video cameras arent big ,because no need tripod anymore.
There can be invented more effective cooling systems when needed. There werent need before with big cameras.
 

SecureGSM

2 x 5D IV
Feb 26, 2017
2,376
1,246
You are make an assumption that the temperature is being reported correctly. The hardware would be defective in these cameras, or the software could be buggy. It could turn out to be a combination of issues.
correct. is a possibility. I mentioned that in one of my earlier posts on CR: it could have been a temperature sensor misreporting or software error..
 

Antono Refa

EOS R
Mar 26, 2014
1,337
445
You say 45MP,.. the 32.5 of the 90D on a crop frame is actually over the 45 on full frame.

If you want to print large, pixel density isn't going to help you any. 12.5MP will.

Dual card slot ?... nah,..I shoot external most of the time.

You do, others do and are willing to pay extra for it.

I use Zeiss 21mm among my lenses,..don't even have autofocus option :ROFLMAO:

You manually focus, others autofocus, and are willing to pay extra for it.

So, no.... at this point I don't see it justified to spend 1.5K over the 90D,..let alone 3K+.

And your usage scenarios are the world's gold standard?

You're welcome to stick with the 90D, but do realize some people are willing to pay extra for features you don't use.
 

criscokkat

EOS RP
Sep 26, 2017
335
304
Madison, WI
Jep, its bullshit. There is no 6 hours cooldown necessary.
And remember, even after an overheat, you can switch right away to 4k30 which never overheats.

The problem is blown completely out of proportion. Of course 8k will overheat. Just like 4k30 overheats in many competitors fullframe DSLM cameras xD
6 Hours is probably how long it took to get back to same temp as room. It probably gets within a degree or two of room withing the much shorter timeframes that DPR used. How fast temperature changes happen is inversely related to the difference between the temps most of the time.
 

peters

EOS RP
Dec 25, 2017
480
465
You have the camera, so you must surely agree that there is a very noticeable difference between the line skipped 4K mode and the 4K HQ mode. To my eyes the HQ mode best the Sony, whereas the line skipped mode is firmly behind the Sony. I would not pay this kind of money for the line skipped only mode.
As for cool down times... you did not experience the 6 hour cool down. That doesn’t mean it’s not true or that you won’t at some point. That’s the unpredictable part that I was talking about.
Are we to believe that all of these reviewers now just have an axe to grind with Canon? Or is it possible the issues are real?
For me it completely ruins the shooting experience when I’m constantly needing to take inventory of everything I do from the moment I switch on the camera. At minimum, the 4K HQ mode should work without fear of overheating. Stills mode should not lose quality if the camera has been running for sometime. The idea that my stills picture quality decreases when overheated is alien to me.
I just took the time to take some comparisons between HQ and non HQ 4k.
HQ is certainly a bit more detailed. I used a 35mm 1,4 L II lense in an ideal studio situation with low iso and medium aperture.

As you can see, the HQ is a bit more detailed if you zom at 100%. However, If I applied just a little bit of sharpening to the image, there is no notable difference. Its certainly nothing I would notice at all in any real world situation. So I will happily use the camera in standard 4k "line skipped" mode and record as long as I wish. I can say with confident that this level of sharpness is nothing I need to ever worry about. The perfect AF and beautiful colors as well as the very good IBIS are all perfect for my work.
 

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