Hi,
I've had a 16-35L parked on my 6Dm1 for eight years. It's an incredible lens that has never failed me and I take care of my gear despite its proven durability. I've taken hundreds of thousands of frames with this lens all over the world in all ...
Update: I called the number listed above and actually got a person on the phone. He said that I needed to ship my lens, the RF mount, and my new R5 back to Canon and let them diagnosis it and maybe they could repair it.