Sony a7SIII Help Manual page 144

Help Guide
Interchangeable Lens Digital Camera
ILCE-7SM3
α7SIII
AF/MF Selector
You can easily switch the focusing mode from auto to manual and vice versa while shooting without changing your
holding position.
MENU → (Setup) → [Operation Customize] → [
1
→ desired button → [AF/MF Selector Hold] or [AF/MF Selector Toggle].
Menu item details
AF/MF Selector Hold:
Switches the focusing mode while the button is held down.
AF/MF Selector Toggle:
Switches the focusing mode until the button is pressed again.
Note
You cannot set the [AF/MF Selector Hold] function to [Left Button], [Right Button] or [Down Button] of the control wheel.
Related Topic
Assigning frequently used functions to buttons (Custom Key Setting)
Custom Key Setting] or [
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Custom Key Setting]