Nikon D800 Launch Date - Gadgets Room

Hi all, I'm encountering a very strange issue with my nearly 1-year-old Nikon D850, one that I have never experienced with my D800. Using back-button autofocus, continuous servo (AF-C) mode and various f1.8 Nikon primes, I find that the focus point(s) in the viewfinder inexplicably disappears in ...