I had this problem after my purchase of the new R5 about 18 or so months ago. I was given a procedure to check what version of s/w was installed, and was told there was an update. (I recall being puzzled why the newest version wasn't installed before being shipped to me.) Anyway, I am having the same problem now. Why has the problem returned, and how do I get the fast, accurate focusing response back between my R5 and "legacy" 70-200?
