As with the Canon RF 800mm F11 IS STM Lens, several of you have been asking for a glimpse of the image quality that the new Canon RF 600mm F11 IS STM Lens is capable of. I spent half of yesterday chasing birds with these two lenses. The 600mm spent its time on the Canon EOS R6, so this image was captured with the higher-resolution Canon EOS R5 upon return from the trip.
This coneflower image is a 100% crop from near the center of the frame. This tripod-captured image's settings were 1/100 sec., ISO 100, and you know the aperture. The RAW image was processed with sharpness set to "2" (0-10 scale).
As with the 800mm crop just shared, this result exceeds my expectation. Add slightly more sharpening (try it yourself — copy and paste this image into your image processing software) and the result is especially sharp.