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Modifying the Canon R5 could result in longer recording times, but it will likely void your warranty

The great thing about the Canon R5 is that it can record in 8K. The unfortunate thing about the Canon R5 is that it only records in 8K for around 20 minutes.

However, according to some recent research, changing the camera’s thermal management architecture can not only increase the recording time but also reduce the recovery time after the camera shuts down due to overheating.

However, the question arises: is it worth risking your camera warranty?

Originally when the Canon R5 came out, the camera turned off after 19 minutes of recording in 8K and some 4K modes due to the processor overheating. Users would have to wait up to two hours for the camera to cool down. And then you’d only have eight to 25 minutes before it shuts down again. This was due to Canon’s original timer chip, which protects your camera processor from the excessive heat generated when recording in ultra high definition.

How hot are we talking?

Around 85 ° C (185 ° F). That’s a little toasted. The R5 however, it was designed to dissipate this heat through two thermal pads and an aluminum heat sink. The problem is that the heat sink is under another board so the heat has nowhere to go. As such, the camera turns itself off.

However, users complained that Canon uses an arbitrary timer to protect itself from overheating instead of relying on actual thermal data to determine when the camera is reaching the hazardous area.

Canon has released a firmware update that measures the actual thermal load on the R5 processor and motherboard. The result? Users were given an additional six minutes. But it also meant they could turn the camera off when not in use and not be hampered by a cumulative timer chip.

Filter maker Kolari Vision has a modification of the R5 that promises to almost double the recording time by positioning the camera’s heat sink behind the camera housing so it can radiate that heat away from sensitive circuitry and into the air.

The result is longer recording times and shorter recovery times. The camera can now record about 44 minutes before shutdown and then another 25 minutes after a five-minute cool-down period.

Kolari’s modification uses a thick copper heat sink that has been repositioned to be near the back of the camera housing. There it dissipates the heat coming through the thermal pads and transfers it to the rear housing. Kolari says the design is completely internal and doesn’t affect the R5’s weatherproofing in any way.

Kolari offers the R5 modification service for $ 400, or you can purchase a modified Canon R5 directly for $ 4,400. Kolari promises step-by-step instructions for handicrafts for hobbyists this year.

But if you don’t want to wait, DIY Perks posted a modification of the R5 on YouTube last November that tries water cooling before committing to a solution similar to the Kolari solution, but with an additional homemade fan from a laptop.

But be warned. These modifications, whether professionally or via the DIY route, definitely become the warranty of the camera is void.

Did you find any fixes? Leave them in the comments.

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