Well, 5 years in camera business is not that long. I had this question for a while (and still hope there is a better solution) and found this post but not a solution to the problem. So hoping that people with RF lenses (6 years old) can find it usefu...
Sorry, you might have figured it out already and I know it is a ridicules way. But... What I do - turn manual focus on of course, then turn the focus ring counter-clockwise (depending on your settings) util a dimmed triangle appears right of the infi...