Sony A7RIII ILCE-7RM3A Operating Instructions Manual page 384

Help Guide
Interchangeable Lens Digital Camera
ILCE-7RM3A
α7RIII
Lock Operation Parts
You can set whether the multi-selector, dials, and wheel can be locked by pressing and holding down the Fn (Function)
button.
MENU → (Camera Settings2) → [Lock Operation Parts] → desired setting.
1
To lock the operating parts, hold down the Fn (function) button until the message "Locked." appears on the
monitor.
Menu item details
Off:
Does not lock the multi-selector, front dial, rear dial, or control wheel even if you press and hold down the Fn (Function)
button.
Multi-Selector Only:
Locks the multi-selector.
Dial + Wheel:
Locks the front dial, rear dial, and control wheel.
All:
Locks the multi-selector, front dial, rear dial, and control wheel.
Hint
You can release the lock by holding the Fn (Function) button down again.
Note
If you set [ AF Area Regist.] to [On], [Lock Operation Parts] will be fixed to [Off].
Related Topic
Registering the current focus area (AF Area Regist.) (still image)
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