Big Sur Finder .CR3 Support for Canon R5

Interestingly, after downloading the image files to my MacBook (Catalina) and then copy those files to the iMac (Big Sur) I can handle and open the .CR3 files as if there was never any issue! It's a cumbersome workaround but all I've got right now.

That said, there seems to be some kind of a Canon EOS M50 Mk. 2 card formatting thing going on, probably the true basis of my problems: Images shot as .JPG also will open on the MacBook but won't open on the iMac.

FYI:

Yeah, between Canon and Apple there apparently needs to be communication.

• My MacBook is running on macOS Catalina and CAN work with Canon .CR3 files.
• My iMac is running on mac OS Big Sur and CANNOT work with Canon .CR3 files straight from the camera -- Finder can't copy or move the files, Photoshop cannot open them, nor can Photoshop open .JPG files taken by the camera.
• Both machines are running the current updated version of Adobe Photoshop.
• If I download files from the camera's .CR3 files from the memory card to the MacBook, then transfer the files to the iMac, the iMac is able to use the files with no problem.
• Appears to possibly be an issue with the Canon's formatting of the camera's card wherin the MacBook reads files but the iMac sees them as incomplete or corrupt.

Hi ImperialEagle,

Welcome to Apple Support Communities. We understand that you are not able to see files from your Canon camera in Finder.

As you mentioned, your camera and RAW format is supported in macOS Big Sur. Since this is a new change that occurred, you might have a corresponding firmware update from Canon. We'd recommend reaching out to them to see if a firmware update is available for your camera. Canon contact information can be found in the paperwork that came with your camera.

Get help with the Photos app on your Mac has some guidance that may help with this issue as well. We also found the following page with an internet search - Canon Help Center.

Take care.

Until Canon gets the necessary info to Apple so it can add the Mk50 RAW file to it's system and you get a Mac that will run Big Sur and later you'll have to use the free Adobe RAW Converter app to convert the .cr3 files to .dng files which the current Photos can handle and use.

Contact Canon and ask them when they will be getting the info to Apple. It's their responsibility.

I just upgraded to Big Sur from Catalina today. I am able to see .CR3 files from the EOS R5, for example, in the Gallery mode. However, the rendering is on the slower side. Also "as Icons" does not work for .CR3 files like it does for .CR2 files.

See if the near-to-be-released macOS 11.3 clears things up when it arrives. Wouldn't be the first time that it took Apple n-tuple O/S releases to get the Camera Raw things working correctly for certain cameras.

For some people the 11.2 R5/6 raw support did not work at least immediately for some strange reason. But in later 11.2.x updates it should work.

Big Sur QuickTime Player complains about the 4:2:2 movies (4:2:0 is OK) but opens them while other apps like VLC or IINA open them OK.

I can download sample files to Big Sur and open/view them in Affinity Photo, GraphicConverter 11, XnView XP, Adobe DNG Converter, etc. Don't know why you can't copy them.

It’s April 24 and I still have major difficulties handling Canon .CR3 files with updated MacOS Big Sur. Oddly my little MacBook can handle the files just fine — it’s older and cannot update to Big Sur! What’s going on here? (Canon EOS M50 Mk. 2)

JamesMe wrote:

It’s April 24 and I still have major difficulties handling Canon .CR3 files with updated MacOS Big Sur. Oddly my little MacBook can handle the files just fine — it’s older and cannot update to Big Sur! What’s going on here? (Canon EOS M50 Mk. 2)

FWIW, The Canon EOS M50 Mark II is not supported in Big Sur.

Yeah, I didn’t see it on the linked list which is a bit puzzling — file extension is .cr3 — but the OS does not recognize the file format and I cannot even copy, much less open, those files. As I mentioned, however, my elderly MacBook running on macOS Catalina has no difficulty handling them! Hoping an update will resolve this. BTW: Canon offers no firmware update for this newer little camera — still a ver. 1.0.0

Using this workaround I can move, copy, open the .CR3 files, macOS does not create icons in the file list (yes, the current version of Photoshop is installed/up-to-date).