Canon RF 100-400mm zoom lens Professional Photographers review in 2025. Best telephoto for Canon?

I have been using this Canon RF 100-400mm F5.6 - F8 Telephoto zoom lens for about a year iun my life as a professional photographer. I share my thoughts about ising it on my Canon R 5 and R8 Mirrorless cameras. I show a random selection of images taken with the lens and talk about all the features and aspects of the lens as well as talking through som eof the other options out there. Thanks for watching. RR 2025