cr3 cannot preview in finder using ventura

loftycide wrote:

Canon R8 - not listed there yet.

I had expected the file format would be the same as similar cameras in their range using that raw extension.

Unfortunately no. If you need something to preview R8 files you might want to take a look at the free XnView MP.

https://www.xnview.com/en/

Is your camera supported?

Digital camera RAW formats supported by iOS 16, iPadOS 16, and macOS Ventura - Apple Support

Is there a specific plugin or extension that will allow their viewing?