Sony a7SIII Help Manual page 160

Help Guide
Interchangeable Lens Digital Camera
ILCE-7SM3
α7SIII
Focus Magnif. Time (still image/movie)
Set the duration for which an image is to be magnified using the [Auto Magnifier in MF] or [Focus Magnifier] function.
MENU → (Focus) → [Focus Assistant] → [
1
Menu item details
2 Sec:
Magnifies the images for 2 seconds.
5 Sec:
Magnifies the images for 5 seconds.
No Limit:
Magnifies the images until you press the shutter button.
Related Topic
Auto Magnifier in MF
Focus Magnifier
Focus Magnif. Time] → desired setting.
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