Here are a couple of images of the EOS R1 and EOS R5 Mark II

[Quarkcharmed]

Why would hot pixels be impacted?

If google is to be believed, then "In general, for every 6-7 °C the sensor can be cooled, the effects of dark current [hence random noise] are halved."
So the question is whether the grip actually cools lower than ambient temperature or not. I suspect it isn't unless it is a peltier cooler and they are power inefficient. If passive cooling (fan or natural cooling similar to the R5c) then it won't go lower than ambient.

I believe that active cooling is mostly for video. However I'm interested in how the R5II will perform in terms of the hot pixels. The amount of hot pixels depends on the temperature. The R5 (Mk I) is not the best camera for long exposure photography because of the hot pixels.

 

[Richard CN]

Finally, the R5II can breathe through the vents in the grip. Will it improve the dark currents/hot pixels issue with long exposures as well?..

dark current - probably not? hot pixels may.

but generally for long exposures, the noise should be less - over time. ie: if you are shooting for 1 hour, the shots at the end of that hour will have a lot less noise with the cooling grip than without.

 

[Richard CN]

No shutter button on the grip is such a Canon move. Now people have to get both grips if they want cooling if if they want a comfortable experience with when doing photography. Canon must have something against just all in one products. Maybe it's potentially more money but more annoyance to their loyal customers.

there's alot more "stuff" in the cooling grip, including the fact that it has to hold a battery (maybe two?) in there as well. I do believe it's far more box-like because it has to include batteries, fan, venting, etc. and there simply isn't room.

I've seen a picture of the grip, I'm not even sure how they managed to fit everything in there.

Also and the most important fact: You aren't supposed to hold it by the grip if you have on the cooling grip. Covering up the vents with your fingers, etc. would be an unwise thing to do. It's not a portrait grip, it's there simply for cooling.

 

[David - Sydney]

No shutter button on the grip is such a Canon move. Now people have to get both grips if they want cooling if if they want a comfortable experience with when doing photography. Canon must have something against just all in one products. Maybe it's potentially more money but more annoyance to their loyal customers.

I am guessing that the cooling grip is assumed for video using landscape mode and mostly on tripod/gimbal ie there wouldn't need to be a vertical shutter in those scenarios. It probably only has one battery by the looks of the vent and assumes external power/monitoring would be used.

Vertical grip/shutter would have 2 batteries and more stills orientated (pun intended).

Patience grasshopper.... we will see very shortly and the comments can come with actual information.
I wonder how long before 1000 comments for the CPR first impressions article!

 

[Quarkcharmed]

dark current - probably not? hot pixels may.

but generally for long exposures, the noise should be less - over time. ie: if you are shooting for 1 hour, the shots at the end of that hour will have a lot less noise with the cooling grip than without.

Hot pixels are the result of irregularities in the dark currents, they're hot because the dark currents are higher in them. The additional charge because of the dark currents accumulates during long exposures. Reducing overall temperature reduces dark currents and the hot pixels issue; I think it also depends on the sensor design. That, at least, is my understanding.

Now the question is, if I get an R5II, will I also need the active cooling grip to shoot long exposures...

 

[Richard CN]

Canon is a let down for me. Cooling grip makes it big a chunky. Seems like it will probably over heat or get very hot like the R5. Sony is looking better and better!

Do you mean like the ZV-E10 II that overheats in over 20 minutes? Doing 4K? when this shoots 8K60?

Knock yourself out - and at least you'll be able to keep your coffee warm.

 

[Rocksthaman]

Do you mean like the ZV-E10 II that overheats in over 20 minutes? Doing 4K? when this shoots 8K60?

Knock yourself out - and at least you'll be able to keep your coffee warm.

Fx30 ?

 

[Navism]

Hong Kong Youtuber said R1 has AI resize. I hope it is real with AI denoise!

 

[Quarkcharmed]

Canon is a let down for me. Cooling grip makes it big a chunky. Seems like it will probably over heat or get very hot like the R5. Sony is looking better and better!

Magic mirror on the wall, what's the best camera of them all?

Shrek - Lord Farquaad And Magic Mirror â (4/16)

This movie is a property of Dreamworks!#Shrek

youtu.be

 

[neuroanatomist]

Canon is a let down for me. Cooling grip makes it big a chunky. Seems like it will probably over heat or get very hot like the R5. Sony is looking better and better!

So long. See ya. Wouldn’t wanna be ya.

 

[neuroanatomist]

We both know Canon is lacking hard.

You know nothing, Jon Snow.

 

[Richard CN]

4K HQ at any frame rate shouldn’t over heat in this day of age. I hope it doesn’t… I HOPE that grip is only needed for 8K crap.

If this camera doesn’t have a cinema os then what’s preventing consumers to going to the “better” hybrid? The R5C.

Is there an R5c mark 2?

We both know Canon is lacking hard. Sony is making strides. I’m a canon fanboy but if Sony drops a new camera soon idk might have to jump ship.

perhaps read what I wrote again, and this time without your Sony glasses on. the cooling grip is necessary for long shooting at 8k60p. Sony's newest camera overheats at 4k60.

 

[Richard CN]

Hong Kong Youtuber said R1 has AI resize. I hope it is real with AI denoise!

we've seen information we can't share. the R1 feature set incredible. I can't wait to see the full details.

Let's put it just this way. It's the 1 series mirrorless camera everyone has been waiting for.

 

[PGSanta]

Hot pixels are the result of irregularities in the dark currents, they're hot because the dark currents are higher in them. The additional charge because of the dark currents accumulates during long exposures. Reducing overall temperature reduces dark currents and the hot pixels issue; I think it also depends on the sensor design. That, at least, is my understanding.

Now the question is, if I get an R5II, will I also need the active cooling grip to shoot long exposures...

Highly unlikely the cooling grip would have any significant impact on hot pixels during extreme long exposures; from what I can gather you're right, it's largely a sensor design issue.

 

[Richard CN]

Fx30 ?

let me know when it shoots 8k or even RAW video internally.

 

[Austintatious]

perhaps read what I wrote again, and this time without your Sony glasses on. the cooling grip is necessary for long shooting at 8k60p. Sony's newest camera overheats at 4k60.

Well that’s good then!

Do you see yourself writing about an r5c mk.2 one day?

 

[frankchn]

Hong Kong Youtuber said R1 has AI resize. I hope it is real with AI denoise!

Hmm, I guess the details will be revealed soon, but I would like to AI upscale on my desktop with a 4090 at my leisure instead of a power constrained camera.

 

[sanj]

Waiting to see how R5C compares.

 

[sanj]

I love the idea of the cooling grip!!! So I will have a great, compact R52 and when I need 8k 60fps RAW video (not all the time), then I can put the grip. Wonderful.

 

[DhlcadR6]

R5 is dropped to sub-2300 USD in HK, which sits perfectly between R6ii, R3 and R5ii.