Nikon Coolpix 300 - Manual (Page 34)

20 First Steps : Turning the Camera On
Note: To increase the life of the batteries, the camera will automatically
enter “sleep” mode if no operations are performed for thirty seconds.
When the camera enters “sleep” mode, the touch-panel display will turn
off automatically but the POWER lamp will remain lit. If no operations
are performed for a further two minutes, the camera will turn itself off
automatically (this does not apply when the camera is being powered by
the AC adaptor). When in sleep mode, the touch-panel display can be
reactivated by half-pressing the shutter-release button or by touching the
display window with the stylus. The touch-panel display also reactivates
automatically whenever the record button is pressed.
To turn the camera off, slide and release the ON/OFF switch as shown
above. The touch-panel display will briefly show the word “GOOD-BYE”
on a blue background while the camera shuts down. You can safely unplug
the AC adaptor or exchange the batteries once the POWER lamp has gone
off.
Note: After turning the camera off, you will need to wait four or five
seconds before you will be able to turn the camera on again.