The autofocus feature on the iPhone
is pretty good, with its ability to pick out faces and adjust the white balance
and exposure to focus on them. But as magical as this technology may seem, it's
no substitute for human touch.
Let's say you're snapping a
photo of a woman showing off her engagement ring. You'll want to focus on the
subject's ring, not necessarily her face. Your phone's autofocus will dutifully
draw a box around the fianceé's face, and leave the ring relatively blurry.
But, if you tap on the ring on your phone's screen, the focus will shift.
This works particularly well
when shooting video. As you film, simply tap on whatever you want the camera to
focus on.
The camera will
automatically focus on a person's face. Tap on another object on the screen to
focus on it instead. (Staff)
