Sony a7iv autofocus question?
Sony a7iv autofocus question? So I just got the a7iv and I love it. Had a question though. I only use the back button af on for focusing. Something I noticed was that, on occasion, when I press the button in af tracking mode, the af box remains white. This is very infrequent, and usually if I depress, or press harder, it catches focus instantly. Maybe this is normal, or just...