If only my GH5 had reliable continuous autofocus...
The nice thing about this feature is that you will never get any pulsing or hunting that sometimes occurs with AF-C on even some of the best systems. Once it locks on, it stays put. I’ve seen this with both Sony and Fuji. And let’s not get started with Panasonic!
Bernard Bertrand talks about the razor sharp image... If you’re pulling focus, I think it’s more dramatic the wider you can open the iris... So it definitely helps not only to have a relatively fast lens, but also one that is pretty crisp wide open.
Because the focus transition feature requires manually focusing to set the A and B points, it can be very frustrating in situations where there are no contrasty lines or specular highlights when using the camera’s LCD, even with focus assist. I usually focus on my model’s pupils, but when shooting in a dark alleyway, it can still be pretty challenging.