Huawei Ascend Mate 7 Quick Start Manual page 6

Camera
Touch
Flick left or right to switch
between photo and video
capture modes.
.
Frame the scene you want
to capture. Let your camera
focus automatically or
touch the screen to focus
on a specific object. Then
touch to take a photo.
In all focus mode, you
can change the focus
point on a photo after
it's been taken.