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Sigma subtly trolls Canon on Twitter over overheating issues

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Canon’s taken quite a bit of flack around the overheating issues of the EOS R5 and EOS R6 mirrorless cameras. Canon has announced new firmware for the EOS R5 which extends the recording time a little, although it’s not going to make much practical difference to many would-be Canon filmmakers.

It’s not often, though, that we see a company making a subtle little dig at a competitor for issues with their gear, though. Sigma posted a tweet that, while it doesn’t specifically call out Canon or the EOS R5 does have a rather obvious intent, extolling the not-overheating benefits of a big heatsink in the Sigma fp.

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Canon releases V1.1 EOS R5 firmware to improve video recording times

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Canon has received a lot of criticism over the Canon EOS R5‘s overheating issues, especially since it started to look as if the limitations were arbitrarily imposed by Canon and not based on actual temperatures. Well, now they seem to be addressing some of those issues with a new V1.1 firmware update.

Now, this certainly isn’t going to make everybody happy, as the benefits seem relatively minor, but it is at least an improvement. As well as extending the shooting times, the firmware fixes a few typos and corrects some bugs.

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Solve the EOS R5 overheating issue (kinda) with a piece of tape

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There are a couple of reports right now of users managing to overcome the overheating limits of the Canon EOS R5 mirrorless camera. Well, sort of. By tricking the camera into thinking the battery slot door is closed when it’s not, people have found a way to reset the timer. But there’s a catch. Your footage is pretty much useless.

The video above by J. Marcus Photography demonstrates the technique, and how he was able to reset the timer using just a piece of tape over the battery door to make the camera think it was still closed. When the overheat warning came on, he removed the battery, reinserted it and magically the overheat warning was gone.

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Canon EOS R5 vs. R6: don’t underestimate the R6 for video

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Okay, we all know it by now: the Canon EOS R5 is prone to overheat, which makes it unusable for serious video work. And what about the EOS R6? It’s less impressive in specs, but should you disregard it for video? Dan Watson compares the two models in his latest video and he’ll tell you why you should not underestimate the Canon R6 when it comes to video work.

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Canon EOS R5 teardown suggests overheating time limits hard-coded into firmware

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After seeing numerous reports of the lengths to which people had tried and failed to cool down the Canon EOS R5 to get longer video shooting times out of it, I was starting to suspect that the “overheating” time limits might actually be coded into the camera’s firmware and it actually has nothing to do with the temperature of the camera or the environment.

Now it seems those suspicions might have some evidence after a Chinese EOS R5 owner tears his camera down to try and fix the problem himself. He posted images of the process to Baidu and we can see exactly how the EOS R5 is laid out inside, which seems designed not to aid cooling, but stifle it. A video of the teardown was also posted.

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Canon R5 vs. Sony a7S: Which will overheat faster?

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Canon R5 has proven to be an amazing camera. But sadly, it has also proven to have overheating issues. In one of his previous videos, Dan Watson used the R5 side by side with the Sony a7S, and overheating was only one of the aspects he compared. In his latest video, he has addressed this problem specifically. So, when the Canon R5 and the Sony a7S shoot side by side, which one will overheat faster? Let’s watch and see.

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Report: Canon R5 shipping delayed due to overheating issues

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That Canon R5 has overheating issues is now a well-known fact. Still, the demand seems to be so high, that Canon is forced to delay the shipping of its new camera. Or is it really because of the high demand? According to the latest reports, the delays are expected precisely because of the overheating issues.

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Real-world test shows overheating issues with EOS R6 make it unusable for serious video work

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Up until now, most of the overheating hyperbole has been hypothetical. It’s based on documentation that Canon has released. But how closely does it represent the real world? Well, the fact that Canon has apparently patented an active cooling EF to RF adapter should be a big clue. But if you needed some real-world evidence, check this out.

Johnnie Behiri over at Cinema5D recently used the Canon EOS R6 for a couple of days shooting in Japan to produce a short film as part of his review of the camera. It was a pre-production unit, and perhaps there have been some changes to the final production camera, but this assessment does not look good at all.

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Canon is releasing new RF mount adapters and one may have active cooling to address overheating

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There’s been a lot of talk about Canon’s new EOS R5 and EOS R6 cameras overheating since their announcement and people took a closer look at the documentation. But it seems that Canon might be doing something to address it.

Canon Rumors reports that Canon is planning to release several new EF to RF adapters this year and a Canon patent discovered by the folks at Canon News suggests that one of them might have an active cooling solution to address the overheating concerns in their new mirrorless cameras.

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Canon confirms the EOS R5 overheats in 4K as well

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There’s been a lot of chatter and speculation lately about the potential overheating issues with the new Canon EOS R5. Given that very few people even have one in their hands, it’s difficult to know for sure exactly how it will perform in the real world, although Canon has now confirmed the times mentioned in Max Yurev’s video, and also extended the table to include other shooting modes.

While some of the overheating modes had already been released, there were still questions to be answered. The biggie that most people wanted to know was how well does it handle 4K 120fps footage and how long can you keep shooting it for? Well, Canon has now answered.

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