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This is an old patent application (2023-127217) that we brought to you back in September of last year. But with the upcoming Canon EOS R5 Mark II release coming shortly, I felt it was a good idea to revisit it, as it will use something very similar, if not this exact setup.
We know that the EOS R5 Mark II is coming out with vented ports for cooling and also with a cooling grip. Both of these items are described in this patent application.
The first thing that was brought up when vents were mentioned with the EOS R5 Mark II – it's very easy to create these to be entirely weather-sealed. The trick is that the airflow is contained in a sealed channel or “pipe” and heat is exchanged from the inside of the camera to the inside of the pipe. The camera is warmer than ambient air, so heat will naturally transfer. So weather sealing a camera that has a vent is not an issue.
This is the diagram with the grip attached and the general airflow is shown in blue. The port, 241, is on the bottom of the camera and connects with the grip. Air is then forced from the grip into the camera and out the side ports (242 and 243).
Looking at the bottom of the camera, you'll see that it has a rectangular intake vent. This allows the camera to align with the grip to provide an active cooling solution, but will also allow for the camera to be passively cooled without the fan as well. Since it's on the bottom of the camera, the odds of it being impeded is less than for instance, if it was around the handgrip area.
I think this also means that there's a good chance that the normal battery grip will have a slightly different design to not block the airflow.
Looking at the grip in more detail, you can see that it has an intake vent 305, and the grip pushes the air out the vent 317 and into the camera body. 318 is a seal that prevents air from escaping.
You can review the entire patent application here.
It will be interesting to see how the manufacturers of L-brackets (like RRS) will prevent their brackets from obstructing the vents in the bottom of the body and/or grip.
I wouldn't expect it to be a difficult engineering problem - but it may prevent using an R5 grip on an R5 Mark II.
if your camera is reaching 100C to generate steam you have other more serious camera issues.
this is really no different than your phone having a passive surface, or any other device with a passive heat sink. air flows over or around the hot surface. it allows for better optimization of the heat removal, instead of it just collecting in the camera or as bad - on the camera.
It happens under 100F depending on the humidity.
A hair dryer is certainly not boiling your head.
Well, there will be screening on the vents, and wash your hands after eating some Doritos before you shoot.
The vent holes are two small ones on the side and a larger one on the bottom where the grip attaches.
it would be difficult for it to collect a significant amount of stuff.
laptops, for instance, have venting underside and at the back or sides, so very similar designs. Panny has a camera with the similar sort of arrangement. Tons of electronics have passive venting - with far less sealing.
actually more difficult. as you have to have a heat pipe or some sort of method to efficiently shunt the heat away.
there has been patents on that though from my recollection. moving air is the easiest and most tried and true method of cooling though.
I hope they have a separate non-cooling grip with the two batteries. I bet they'll want $1k for this cooling one.
Brian
8K60 is nice but oversampled 4K120p would be an even bigger achievement!
I expect to see some "future-proof" framerates and whatnot from the camera, and some of the "cavaets" I have mentioned are probably related to the grip being attached, though I am not 100% sure of that at the moment.
I hope things like 4K120p or 8K60p would only be limited to something like 30 seconds or a minute without the active cooling grip attached and NOT completely impossible without one of these grips.
Because this rig would surely be too heavy for my RS3 Mini gimbal with the grip attached! So HOPEFULLY "with caveats" means that the recording time is limited and not that it's entirely impossible without a grip!
Canon has discontinued the battery grip BG-R10 for the EOS R5, EOS R6 and EOS R6 Mark II - Canon Rumors
Great. Another orphaned grip in my camera gear closet.