They don't, actually. The R5 is the first, and currently only, Canon camera that records in 8k. They do have a line of cinema cameras, but all max out at 4K cur

They don't, actually. The R5 is the first, and currently only, Canon camera that records in 8k. They do have a line of cinema cameras, but all max out at 4K currently. Likely because they use the smaller Super 35mm sensor to match the film size film folks are familiar with.