Sony alpha 7 R IV Instruction Manual page 351

Help Guide
Interchangeable Lens Digital Camera
ILCE-7RM4
α7RIV
AF Tracking Sens. (movie)
You can set the AF sensitivity in movie mode.
MENU → (Camera Settings2) → [ AF Tracking Sens.]→desired setting.
1
Menu item details
Responsive:
Sets the AF sensitivity to high. This mode is useful when recording movies in which the subject is moving quickly.
Standard:
Sets the AF sensitivity to normal. This mode is useful when there are obstacles in front of the subject or in crowded
places.
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