HI All,
I have a question about using off camera flashes with mirrorless cameras. Since they show you a live view of the picture it seems like it would be difficult to use when you are compensating for external flash. Let's say you are trying to shoot a low key image - you would manually adjust for the flash compensation and your screen could become black not allowing you to compose the picture or autofocus. I am specifically wondering on the A7 but I am sure other mirrorless users deal with this too.
Is there some sort of setting to work around this?

