Sony DT 11-18mm f/4.5-5.6 Lens - Manual (Page 39)

3. Shooting: Adjusting the Focus 39
AF subject shift sensitivity
You can set the sensitivity for changing
between subjects using Focus >AF Subj. Shift
Sens. (page 75) in the Shooting menu of
the full menu.
When set to a low sensitivity, the focus does
not readily shift even if another subject moves
in front of the in-focus subject. When set to a
high sensitivity, the focus shifts to give priority
to the subject that moves in front.
[Tip]
If AF Speed/Sens. is assigned to an assignable button,
the level bars for adjusting values are displayed in
the following order each time the button is pressed,
allowing you to change the AF transition speed and AF
subject shift sensitivity settings.
AF transition speed
 AF subject shift sensitivity  No
display …
AF Subj. Shift Sens.: 1(Locked On) AF Subj. Shift Sens.: 5(Responsive)
Change focus to another subject slowly Change focus to another subject rapidly
Changing the Focus Target
Manually (AF Assist)
When Focus >AF Assist (page 75) in the
Shooting menu of the full menu is set to On,
you can still use the focus ring on the lens
during auto focus to adjust the focus on a
subject.
When you stop using focus ring operation,
auto focus continues to focus on the subject
focused using the focus ring (AF assist state).
After operating the focus ring, moving the
focus to another subject is slightly more
difficult, regardless of the Focus >AF Subj. Shift
Sens. (page 75) setting in the Shooting
menu of the full menu.
The AF assist state is canceled by the
following.
ˎ ˎ When the subject focused using the focus
ring is no longer visible
ˎ ˎ When switching to manual focus
ˎ ˎ When a face is registered
[Tips]
ˎ ˎ The AF assist state can be canceled quickly by using
an assignable button (page 48) assigned with Push
AF/Push MF.
ˎ ˎ Operating the focus ring clears the registered face
selection.
ˎ ˎ In Face/Eye Only AF mode, auto focus focuses on the
face closest to the focus position of the focus ring.