Pre-Af (Still Image); Eye-Start Af (Still Image) - Sony ILCE-7S User Manual

Red:
Enhances outlines in red.
Yellow:
Enhances outlines in yellow.
White (default setting):
Enhances outlines in white.
[73] How to Use Using shooting functions

Pre-AF (still image)

The product automatically adjusts focus before you press the shutter button halfway down.
1. MENU → (Custom Settings) → [
Menu item details
On (default setting):
Adjusts focus before you press the shutter button halfway down.
Off:
Does not adjust focus before you press the shutter button halfway down.
Note
[ Pre-AF] is available only when an E-mount lens is mounted.
[74] How to Use Using shooting functions

Eye-Start AF (still image)

Sets whether or not to use autofocus when you look through an Electronic Viewfinder.
1. MENU → (Custom Settings) → [
Menu item details
On:
Auto focusing starts when you look through the Electronic Viewfinder.
Off (default setting):
Auto focusing does not start when you look through the Electronic Viewfinder.
Adjusting the focus
Pre-AF] → desired setting.
Adjusting the focus
Eye-Start AF] → desired setting.