Sony ILCE-7S - Manual (Page 90)

[79] How to Use Using shooting functions Adjusting the focus
AF w/ shutter (still image)
Selects whether to focus automatically when you press the shutter button halfway down.
Select [Off] to adjust the focus and the exposure separately.
1. MENU
→ (Custom Settings) → [
AF w/ shutter]
→ desired setting.
Menu item details
On (default setting):
The auto focus operates when you press the shutter button halfway down.
Off:
The auto focus does not operate even if you press the shutter button halfway down.
Hint
When [ AF w/ shutter] is set to [Off], you can still use the [AF On] function.
[80] How to Use Using shooting functions Adjusting the focus
AF On
You can focus using any button instead of pressing the shutter button halfway down. The
settings for [Focus Mode] will be applied.
1. Select the desired key and assign the [AF On] function to it using MENU
→
(Custom Settings
) → [Custom Key Settings].
2. Press the key to which you have assigned the [AF On] function while auto-focus
shooting.
[81] How to Use Using shooting functions Adjusting the focus
Eye AF