Do CFexpress Cards Cause Canon EOS R5 Overheating?

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John Gress has completed an excellent test: Do CFexpress cards cause Canon EOS R5 overheating? Tested with atomos shogun + BG-R10 battery grip and batteries. Check out!

In conclusion, having the screen on does seem to be a contributing factor to overheating, but it doesn’t appear having the CFexpress in the camera causes the over heating, even though I got about 90 seconds more internal recording time with the SD card. So I think the moral of the story is keep the screen off as much as you can and the cards out of the camera.

The Canon EOS R5 is now available for pre-order at major US stores:

Canon EOS R5 body: $3,899 at Amazon, B&H, Adorama.

Canon EOS R5 with 24-105mm f/4L Lens: $4,999 at Amazon, B&H, Adorama.

Canon BG-R10 Battery Grip: $349 at Amazon, B&H, Adorama.

Read more: Best Lenses for Canon EOS R5 and Best Memory Cards for Canon EOS R5.