Review on Samyang AF 85mm F1.4 Weather Sealed Lens - Canon EOS R RF Mount (SYIO85AF-RF): High-Speed Auto Focus Lens for Clear and Crisp Photography by Jackie Smith

I was happy with this lens until it stopped working. About 3 months after buying the lens I suddenly realized that instead of an image I had a horrible f00 error. I decided to update my camera's firmware. This seemed to fix the problem for a few days before the f00 error returned. So I decided to order a USB dock to upgrade the lens. My computer has contacted the lens to update the firmware but I still have the f00 error. Samyang's customer service seems to consist entirely of an FAQ page saying to contact the seller and Amazon was of no help. Basically, if you have a problem after the 90-day support period with Samyang, it seems like you're shifting the blame to others. Needless to say I will never buy their products again.