Samsung Galaxy Tab 3 7.0 Lite User Manual page 59

Media
Zooming in and out
Use one of the following methods:
Use the Volume button to zoom in or out.
Spread two fingers apart on the screen to zoom in, and pinch to zoom out.
The zoom in/out effect is available when using the zoom feature while shooting
video.
Share shot
Tap , and then select one of the following:
Share shot: Send a photo directly to another device via Wi-Fi Direct.
Buddy photo share: Set the device to recognise a person's face that you have tagged in a
photo and send it to that person.
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