A modern camera like a Sony A6400 (which I use) has facial focus tracking and deals with this quite well. I use a 16mm prime lens for my video calls -- 50mm wou

A modern camera like a Sony A6400 (which I use) has facial focus tracking and deals with this quite well. I use a 16mm prime lens for my video calls -- 50mm would be way too close for my facial distance (about 2 feet from the lens).