Samsung EK-GC120 User Manual page 37

Media
Taking a video
Tap to take a video. To stop recording, tap
Press the Shutter button to take photos while taking a video.
Manual focus is not available in video mode.
The zoom function may not be available when recording at the highest resolution.
Zooming in and out
Use one of the following methods:
Use the Zoom button to zoom in or out.
Spread two fingers apart on the screen to zoom in, and pinch to zoom out.
The zoom function may not be available when shooting at the highest resolution.
The zoom in/out effect is available when using the zoom feature while shooting a
video.
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