Extension tubes on RF Lenses


Wildlife enthusiast!
Jun 14, 2020
Would those of you who have used extension tubes on your RF bodies and lenses please share your experience?
What brand of extension tube did you use? What length of extension tube? What lenses did you use them on? How did it go? Any issues with AF, image quality, or other challenges/concerns?
Do you have any sample images that you would like to share?
Thanks for your feedback!