Does the Canon EOS R5 have overheating problems? Our verdict on its new firmware – TechRadar

“There isn’t a lot unsuitable with the Canon EOS R5”. That’s what we wrote in our complete assessment of Canon’s new flagship mirrorless frame. The web has a bone to select with us, it kind of feels, as a result of you’ll’t wave a stick over on YouTube with out hitting a response to the R5’s overheating problems. Hence the hot arrival of a brand new 1.1.0 firmware replace from Canon.

The headline declare of the replace is that it “is helping prolong video taking pictures occasions in some scenarios”. Canon additionally claims temperature detection has been progressed, with a knock-on growth in how lengthy you’ll shoot, and reckons you’ll be capable to shoot extra clips in a brief time period.

Canon EOS R5

(Image credit score: Future)

That’s all just a little obscure, although, so we grabbed a stopwatch and put the EOS R5’s newest firmware to the check. How a lot does it strengthen the digital camera’s video efficiency? And does it trade our total conclusion of the EOS R5 and who it is for? Before we delve into that, it is time for a fast rewind…

Why the heated debate?

If you might be no longer accustomed to the overheating controversy surrounding the Canon EOS R5, it is price stepping again to provide an explanation for what is going on. 

The Canon EOS R5 is a hybrid digital camera that shoots video at some extremely top bitrates. Opt for its most 8K RAW video high quality and it packs away 2,600Mbps. 4K at 100fps produces a bitrate of 1,880Mbps; 50fps equals 940Mbps; it is 1,000Mbps for those who shoot 10-bit Canon log. Shuffling all that knowledge round equals busy inner elements, and busy inner elements equals warmth. 

Proper cinema cameras – like Canon’s C300 III or the Sony FS9 – have inner fanatics so they can shoot lengthy clips at top bitrates. That doesn’t in reality paintings on shopper, and even prosumer, mirrorless cameras. They’re too small to very easily accommodate a fan, which might suck battery lifestyles and create additional noise in a frame the place customers are much more likely to be the usage of the onboard microphone.

Canon EOS R5

(Image credit score: Future)

Canon’s method to the R5’s warmth era was once arguably miscommunicated – the digital camera was once ready to come across its personal overheating and close down protectively, however as web sleuths briefly found out, dramatic adjustments to the ambient temperature didn’t make an enormous distinction to how lengthy it took for the digital camera to overheat, suggesting the R5’s overheat coverage was once the paintings of a timer quite than a thermometer. Cue web meltdown and a flurry of reactions that have been, paradoxically, themselves just a little overheated.

It’s price noting that during our Canon EOS R5 assessment we shot a brief documentary (beneath) wherein we filmed round 35 mins of All-I, 10-bit 4K video at 25fps and 20 mins of All-I, 4K video at 50fps over the process a couple of hours, with out seeing an overheating caution. 

It’s moderately imaginable that even with out this firmware replace, many creatives would have discovered the R5 a completely appropriate digital camera. Still, firmware-updated frame in hand, we aimed our digital camera at a stopwatch and began taking pictures. 

Our new video exams

We went for without equal EOS R5 tension check first, taking pictures 8K RAW pictures. The R5 controlled a 26-minute and six 2nd take, ultimately failing no longer on account of warmth, however for the reason that 512GB SanDisk 512GB Extreme PRO card reminiscence card was once complete. 

By the time it failed, the digital camera was once decidedly heat to touch and indicated that it had a unmarried minute of filming closing. We let the digital camera leisure and famous that once ten mins of being powered down, the indicated time to be had to movie had risen to five mins.

Setting the digital camera the reasonably lesser problem of taking pictures 8K, All-I at 25p, we noticed the warmth caution indicator at an excellent 22 mins and 40 seconds, however the digital camera carried on taking pictures for any other six mins, in spite of everything making a 28 minute and 30 2nd clip.

Those looking for to shoot lengthy, repeated takes on the digital camera’s fancier modes would possibly want to be careful.

Just as vital as how lengthy a unmarried clip can also be is how briefly the digital camera recovers, and after ten mins the remainder time indicator informed us the digital camera may just shoot any other five mins. Another 10 mins handed and the digital camera would be capable to shoot any other 10 mins. 

At this level its restoration gave the impression to stall – for the following 20 mins the digital camera reported an to be had taking pictures time of 10 mins. 50 mins when we completed taking pictures our clip the R5 added any other five mins, telling us it could be capable to shoot 15 mins. Those looking for to shoot lengthy, repeated takes on the digital camera’s fancier modes would possibly want to be careful.

Canon EOS R5

(Image credit score: Future)

Recovery place

We discovered the R5’s restoration occasions to be beautiful linear. When taking pictures an 8K, IBP clip at 25fps, after ten mins the digital camera indicated five mins of to be had taking pictures time – simply because it did with the 8K, All-I clip above. As with the clip above, it took 50 mins for the digital camera to record a 15-minute taking pictures time.

The excellent information seems to be that the R5 reasonably under-reports how a lot time is to be had – as quickly because the digital camera reported 15 mins to be had taking pictures time we began any other 8K, IBP, 25p clip – and as an alternative of conking out at 15 mins the R5 in truth shot for 25 mins and 52 seconds.

Canon EOS R5

(Image credit score: Future)

But few other folks will use the R5 to shoot unmarried takes to the purpose of warmth exhaustion – maximum will likely be taking pictures a couple of shorter clips, quietly nibbling away at that warmth timer over the process the day. How will they fare?

That’s tough to mention exactly – the R5’s warmth timer is suffering from exterior cooling, so with the ability to to find someplace for it to chill down, or hanging it subsequent to a fan or an air conditioner will accelerate its restoration price.

However, we simulated a couple of quick takes via environment the digital camera to its 4K, All-I, 50fps mode and taking pictures five-minute takes with three-minute rests in-between, with the digital camera closing switched on with its default power-saving choices the entire time. 

About midway via clip quantity nine – that’s just below 45 mins of pictures – we noticed our first blinking warmth lamp. The digital camera lasted till we attempted to shoot our 12th clip, at which level the indicated time to be had to shoot was once 0. At that time, we had been sitting on 55 mins of extraordinarily top of the range video, and the R5 have been powered on for almost 90 mins in overall, making it a good growth.

Canon EOS R5

(Image credit score: Future)

Real-world efficiency

Extrapolating what this all approach is hard. Our five-minute shoot, three-minute leisure comes affordable on the subject of the cadence of a few movie units, however under no circumstances all. In many scenarios that three minute cool-down between takes will likely be extra like 20, and far of the time takes will likely be shorter than five mins, theoretically which means an much more usable digital camera.

If you view the Canon EOS R5 as a extremely usable video digital camera that may every now and then be used for traditional-looking video, it’s moderately most probably you’ll by no means run into any overheating issues in any respect.

And, after all, all of this ignores the R5’s completely affordable – nice high quality, if truth be told – 4K, All-I 25p mode, which Canon says doesn’t have any warmth barriers. Even taking pictures the R5’s High Quality 4K, which oversamples 8K pictures, allowed us to shoot a unmarried 30-minute clip (the digital camera’s longest imaginable clip in any mode), after which any other 11:07 clip ahead of shutting down. Again, restoration occasions had been beautiful linear – five mins to be had after a 10-minute leisure, ten mins to be had after any other ten mins and so forth.

If you view the Canon EOS R5 as a extremely usable video digital camera that may every now and then be used for traditional-looking video, with higher-speed modes for particular events, it’s moderately most probably you’ll by no means run into any overheating issues in any respect. If you’re an over-cranking habitué who desires to shoot a long-form documentary at 4K/50p, it could be price doing a couple of exams with a rented EOS R5 ahead of you splash out or head for your first taking pictures location.

Canon EOS R5

(Image credit score: Canon)

Our Canon EOS R5 verdict

Our conclusion concerning the Canon EOS R5 stays the similar. As a stills digital camera, it plays superbly. It’s mild and shoots terrific high quality photographs. 

For video, the solution is a bit more nuanced – extraordinarily extensive use of its top bitrate modes may just see you knocking up towards that pesky warmth timer in the future. Again, we’d urge someone pondering of taking pictures it professionally to check it in some way that’s as shut as imaginable to the type of shoot they’re envisaging ahead of deploying it – excellent recommendation for any digital camera on any shoot.

As an apart, the brand new firmware doesn’t simply trade how the R5 manages its warmth timer. There are a couple of minor malicious program fixes (progressed FTP transmission, someone?) and progressed in-lens IS efficiency for “positive” RF lenses, which we had been not able to check whilst we had the digital camera. 

Also price noting is that Canon has a options roadmap for the R5 – bobbing up is the power to shoot 120fps in Full HD, plus a decrease bitrate 8K video mode and decrease bitrate modes when taking pictures IPB pictures. Canon LOG 3 could also be on its method.

Do you could have an EOS R5? Get this firmware replace. Whether you’re a devoted video maker or a hybrid shooter, the subtle taking pictures occasions are helpful. If you don’t have an R5 however had been pondering of having one: Canon’s best possible mirrorless digital camera ever simply were given just a little bit higher.