Vivitar 508v3 User Manual page 60

Press the LEFT or RIGHT button to select the next menu item.
7) To exit the menu view:
Press the MODE button to exit the menu and return to your previous mode.
Note:
 While in Playback Mode, press the UP Quick Function button to initiate the Slide Show.
 To exit the Slide Show and return to the previous mode, press any button.
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