Sony Xperia 5 III User Manual page 178

Still image/video window opens.
Tap still image/video window to show/hide menu and other icons.
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Flick still image/video window up to show captured date & time.
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To select other files, in still image/video window, select file again or Flick still image/video window
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left or right.
Zooming In or Out Still Image
In still image window, Tap Display twice or Pinch
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Camera