Sony ILCA-77M2 - Manual (Page 73)

Selects the focusing area. Use this function when it is difficult to get the proper focus in auto focus
mode.
1. MENU
→
(Camera Settings
) → [Focus Area] → desired setting.
Menu item details
Wide:
Focuses automatically on a subject in all ranges of the image.
When you press the shutter button halfway down in still image shooting mode, a green frame is
displayed around the area that is in focus.
Zone:
Select a zone on the monitor on which to focus. A zone consists of nine focus areas, and the product
automatically selects a focus area on which to focus.
Center:
Focuses automatically on a subject in the center of the image. When used together with the AF lock
function, you can compose the image you want.
Flexible Spot:
Allows you to move the AF range frame to the desired point on the screen and focus on an extremely
small subject in a narrow area.
Expand Flexible Spot:
If the product fails to focus on the single selected point, it uses the eight focus points around the flexible
spot as the second priority area to achieve focus.
Lock-on AF:
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 multi-selector. You can move the tracking
start area to the desired point by designating the area to be the flexible spot.
[68] How to Use Using shooting functions Adjusting the focus
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
→
(Camera Settings
) → [Center Lock-on AF] → [On]
2. Align the target frame (A) over the subject and press in the center of the multi-selector.
Press again to stop tracking.