Sony ILCE-7S - Manual (Page 87)

Hint
[ Eye-Start AF] is available when an A-mount lens and a Mount Adaptor (LA-EA2, LA-
EA4) (sold separately) are attached.
[75] How to Use Using shooting functions Adjusting the focus
AF/MF control
You can easily switch the focusing mode from auto to manual and vice versa while shooting
without changing your holding position.
1. Switch the AF/MF/AEL switch lever to the AF/MF position, then press the AF/MF button.
During auto focus:
Temporarily switches the focusing mode to manual. Adjust the focus while the AF/MF button
is being held down.
During manual focus:
Temporarily switches the focusing mode to auto while the AF/MF button is held down, and
locks the focus.
Hint
If you select [AF/MF Ctrl Toggle] in [AF/MF Button] under [Custom Key Settings], the
focusing mode remains switched even if you remove your finger from the button.
[76] How to Use Using shooting functions Adjusting the focus
AF Illuminator (still image)
The AF illuminator supplies fill light to focus more easily on a subject in dark surroundings.
The red AF illuminator allows the product to focus easily when the shutter button is pressed