Center Lock-On Af - Sony a7s II How To Use Manual

When the shutter button is pressed and held halfway down, the product tracks the subject
within the selected autofocus area. Point the cursor to [Lock-on AF] on the [Focus Area]
setting screen, then select the desired tracking start area using the left/right sides of the
control wheel. You can move the tracking start area to a desired point by designating the
area to be the flexible spot or expand flexible spot.
On the Flexible Spot shooting screen, you can change the size of the AF range finder frame
by rotating the control wheel.
Hint
You can move the [Flexible Spot], [Expand Flexible Spot], or [Zone] area quickly through
the following methods:
By pressing the key to which [Focus Settings] has been assigned, and then turning the front/rear
dial or pressing the top/bottom/left/right side of the control wheel. [Focus Settings] is assigned to
the C2 key in the default settings.
Note
When the mode dial is set to
select [Lock-on AF] for [Focus Area].
When [Focus Area] is set to [Wide] or [Zone], the size of the AF range finder frame may
be automatically adjusted according to the subject and the composition as follows:
When focusing on a wider area such as a landscape: A larger AF range finder frame is displayed.
When focusing on a smaller area such as flowers or small items: A smaller AF range finder frame
is displayed.
You can select [Lock-on AF] only when the focus mode is set to [Continuous AF].
A dotted square may appear around the whole screen in the clear image zoom, digital
zoom, or smart zoom range in order to focus using the entire frame.
[69] How to Use

Center Lock-on AF

When you press the center button, the camera detects the subject positioned in the center of
the screen and continues to track the subject.
1. MENU →
2. Align the target frame (A) over the subject and press
wheel.
Press again to stop tracking.
If the camera loses track of the subject, it can detect when the subject reappears on
(Movie/HFR) or when shooting movies, you cannot
Using shooting functions
(Camera Settings) → [Center Lock-on AF] → [On].
Adjusting the focus
in the center of the control