Sony ILCE-1 Help Manual page 91

The [ Face/Eye Prior. in AF] function under [Face/Eye AF] is enabled in the default settings, so you can use the Eye
AF function immediately.
To shoot images with the focus locked on the desired subject (Focus-lock)
When you focus on the subject, the focus is locked while the shutter button is pressed halfway down. Switch to the
desired composition and press the shutter button all the way down to take the picture.
You can lock the focus on non-moving subjects. Set the focus mode dial to AF-S (Single-shot AF).
Setting [ Focus Area] to [Center Fix] makes it easier to focus on subjects located in the center of the screen.
Hint
When the product cannot focus automatically, the focus indicator flashes and the beep does not sound. Either recompose the
shot or change the focus setting. In [Continuous AF] mode,
has been achieved does not sound.
Note
An icon indicating that data is being written is displayed after shooting. Do not remove the memory card while the icon is
displayed. Doing so will prevent images from being recorded normally.
Related Topic
Selecting the focus method (Focus Mode)
Selecting the focus area (Focus Area)
Playing back still images
Auto Review (still image)
(focus indicator) lights up and the beep indicating that the focus
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