Vivitar ViviCam 3730 - Manual (Page 36)

Reviewing Your Pictures and Videos
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5. The thumbnail display will highlight the image that had been show-
ing at the time the thumbnail mode was selected.
Zooming the Displayed Image
When viewing a single image in Playback Mode, you can magnify the image
you selected. The scale of magnification is x1.0 ~ x4.0.
1. Select the Mode dial to Playback mode.
2. Magnify the image up to the desired scale of magnification by using
the UP button ( ).