ajay

I thought about that exact same thing. Take it out of its case and put it into another housing. Who knows? Maybe the fan mod from Tilta will work. I've worked with those semiconductor cooling plates. Really slick. Typically you need a large heat sink to make them work to their fullest potential.

The good news is that we aren't being forced into buying their cameras. We have choices. This is going to backfire on Canon big time.

I can't speak for journalists, but I would love for Sony to update the firmware on the A9 to include slog. The A9 is my go-to camera for photographing wildlife and I also occasionally use it for video. It would certainly be nice to have a bit more latitude on highlights.

Taking the overheating aside, (for my needs, shooting 4k 120p) I would probably need to double that investment in order to store and process video from the huge 120p 4k video files. I had one on order but cancelled it once reality set in: I'd have to fork out at least $1,000 in CF Express chips. I'd probably need to purchase a new computer and/or switch to FCP in order to edit the files: $300 to $3,000 (Davinci Resolve will work sort of, but I would have to optimize each clip in order for them to play properly. (At least on my Mac as it is.)) I'd have to upgrade my hard disk array for more storage to store the massive files from their codecs: $2,000 So now I'm looking at an investment in the neighborhood of $7,000 - $10,000 in order to process and store their 4k 120p files. Beautiful footage but at a price. Either I'll stick with what I have (Z Cam E2) or switch to the A7SIII once we find out the details on that camera.

What drives me insane with these reviewers are their commercials for Square Space. I want to throw a shoe through my monitor. Enough already with Square Space!

This has really been a bizarre year. Will the A7SIII bring sanity?

I think it's around 50MP? 11520x4320

12k for 10k! Buy two!

Correct. It is not. It's just another thing to consider when contemplating the purchase of this camera. What I find strange is that the current version of the software is suppose to work better with 1DXIII and R5 files, yet I did not notice a difference after I upgraded. Even if the playback issue was to be resolved with another update, the processing time to render is also slow. So...besides the overheating problem, expensive memory, extra computer storage and now I have to either upgrade my computer or buy a new one or switch to Final Cut Pro....This list of headaches is overwhelming.

That fixed the playback for me too but can you imagine optimizing longer clips? It would make any serious editing impossible. I'd spend hours optimizing clips. (At least with my computer as it stands.)

I wrote about this on page 23 of this thread. A couple of things to try... Make sure you have the latest version: 16.2.4.016 Optimize the media clip (right click on clip, there's an option called "optimize media clip". The latest version is suppose to help clips from the 1DXIII and R5, but I still had to optimize the clip in order for it to play with out hesitating. This is a time consuming option unfortunately. A 20 sec 4k 120p clip on my computer takes about 4 min to process. I think if I were to buy this camera I would have to switch to Final Cut.

It could be my Mac is getting old in years. I have 40GB of memory, 3.8 GHz Quad Core Intel i5 with a Radeon Pro 580 8GB graphics card. I found a workaround. If I right click on the clip, there's an option to optimize the media. It took about 4 min to optimize a 20 sec clip and now it plays properly within Resolve. I did also render the 20 sec clip and it took 4 min and the fan revved up while processing the clip. It's definitely taxing my system. The clip is certainly beautiful. Easy to grade, lovely Canon colors. Really looks nice! But...it's another step I have to take that I don't have to now with the Z cam and processing time for such a short clip would mean astronomical processing time for fully edited, long videos.

I tried to edit one of those 4k 120p clips. Egads! Davinci Resolve on my Mac just choked. I've not had that problem with Zcam E2 4k 120p files. Works like a charm. Has anyone else tried to edit the 4k 120p samples from the R5?

I'm a 4k 120p snob. I'll admit it. Since using it, I can't go back. That's my primary mode I use for filming wildlife. When people say, if you want perfection (a camera that doesn't overheat) you need a cinema camera. Guess what? Your options for a camera that shoots 4k 120p are either the Zcam E2 (which I own) or going into major debt for a high-end cinema camera and the form-factor sucks. Enter into the equation the Canon R5. It doesn't get more compelling. Small form factor, reasonably priced and it has animal eye detect autofocus. I was so stoked when this camera was announced. Just last week I was filming a hummingbird nest at 4k 120p using the Zcam. It was 95F (35C) in the shade. I was able to run the Zcam off of external power and it worked like a champ for hours without overheating. So you say, then just keep what you got. Fair enough. I might just do that depending now what Sony has to offer with the A7SIII, but what is/was so compelling about the R5 is the incredible autofocus for animals. I've watched a few clips at how well the R5 tracks animal eyes including birds. How they are able to do that is beyond me. It really is an amazing achievement. Am I willing to invest in a camera system that overheats after 12 minutes of filming? Nope. I have one on order but won't cancel it until production units are in the hands of reputable reviewers. Then we'll see.

I think what you wrote is very well put. I think that its imperative that any and all issues with these new cameras be it Canon, Sony or pick your camera should be brought to the table and discussed and verified. Because of your posts, you've brought it to the attention of a lot of potential users and reviewers. When the production cameras hit the market, you can damn well bet they will be testing overheating issues. People can piss and moan all they want that you are being unfair but you are not. I certainly would like to know before I plunk down a lot of money if the camera I am investing in is capable of working in all stated modes without compromise. If there are compromises, I can make an informed decision myself based on my personal needs. All I want is an unfettered review without bias. Thanks for bringing this issue to the forefront.

Hah! Yes, I know Neil. He was filming not too far from me last year. (Sandhill Crane nest)( I texted him often with updates on the nest.) I also have the EF 600f4II. I also shoot Sony mainly for stills nowadays and have the 200-600mm. It's a sweet lens for that system and I'm hoping maybe the A7SIII might provide a nice surprise: 120fps 4k. We shall see. For the Z cam with the 2x crop sensor I primarily use the Sigma 100-400mm lens (EF mount with metabones adapter - no glass adapter). This gives me an effective focal length of 200-800mm with the M43 sensor. I do occasionally put on the Canon 600mm on the Z cam but it's such a beast.

Well, being a wildlife photographer/videographer there are a few issues in my opinion. I shoot primarily 120p 4k now with a Zcam. I can use the footage in regular time and in slo-mo. I love that kind of flexibility. My interest in the R5 is to shoot 120p 4k. When shooting on the Z Cam I can get close to 90 minutes of footage on a 256GB chip. On the R5, that's 16 minutes of run-time using ALL-I. That's the only option. I often record a lot of footage while waiting for wildlife to do something. I don't have the liberty of going back and pressing the record button to capture something I may have missed. How long can I run the R5 in outdoor warm-weather conditions before it will overheat? (Unanswered at this point.) The processing power to edit these humongous files will require an upgrade to my computer more than likely. There are so many things that I do like about the R5. Having a robust image stabilized camera with that form factor and fully articulating screen, 10 bit, etc. is really appealing. I really want a compact system and not have to carry around a bunch of large batteries, an external EVF and cables dangling, etc. Will this camera be my answer? I was hoping it would be but I'm having a hard time rationalizing an investment in 1TB CF Express cards at $800 a pop and not knowing how long I can record before overheating becomes an issue.

For what it's worth, one early-on reviewer of the R5 responded to my question about the camera overheating and stated that during the time they were able to test the camera they had no heating issues. No warnings. No problems. The reviewer also stated that they will be testing this issue with a production camera as soon as they can get one and will do a complete and honest review once in-hand. Could it be an issue with preproduction cameras only? Could it be that it's only an issue in extreme heat? Hard to know for sure but I think we do owe it to Canon to not prejudge the camera beforehand. Seems like a reasonable approach to this issue.

Granted he is outdoors and it's summer but... Here's a "review" by Vistek. They only had the R5 and R6 for two hours but he couldn't get to testing 8k video before the camera overheated (4:50). Take a look at the LCD panel while he's got the camera in video mode. A flashing red thermometer is seen in multiple clips.

If it's the first or last, it doesn't matter if it's not workable. Love all the other features on this camera but most of what I shoot nowadays is 120fps 4k video and unfortunately this camera won't do it for my personal reasons. Mileage may vary for others.

I side with Andrew on this. Yes, the technology packed into this camera is amazing but the overheating issue and enormous file size for 4k 120p is a real problem. About 80% of what I shoot is 4k 120p and those two issues have me cringing...a lot.

Maybe Canon will come out with an ice pack option:

Wolfcrow put up a pretty thorough list of video features and quirks of the R5: https://wolfcrow.com/important-quirks-and-features-of-the-canon-eos-r5-for-filmmakers/?utm_source=newsletter&utm_medium=email&utm_campaign=nurture

That would be great if it did. That's a great idea.

I shoot long takes at 120 fps 4k using the Z Cam E2 all the time. When shooting wildlife, you never know exactly when the wildlife will do something. You keep rolling until you get the footage you want. I just tested my Z Cam E2 and a blank chip provides 1 hour, 40 min run-time with a 256GB CFast chip. The R5 will only give me 16 minutes with a similar chip. That's a HUGE difference. (And BTW, the Z Cam E2 footage (using ZLog) is certainly acceptable @120p.)