Nikon D300 User Manual page 68

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Press the F0_buttons again.
Press the _0_ (MODE and _) buttons together a second time to
format the memory card. Do not remove the memory card or
remove or disconnect the power source during formatting.
When formatting is complete, the
control panel and viewfinder will show
the number of photographs that can
be recorded at current settings.
11_ Memory Cards
• Memory cards may be hot after use. Observe due caution when
removing memory cards from the camera.
• Memory cards that have been formatted in a computer or other device
must be reformatted in the camera before they can be used for
recording or playback.
• Turn the power off before inserting or removing memory cards. Do not
remove memory cards from the camera, turn the camera off, or remove
or disconnect the power source during formatting or while data are
being recorded, deleted, or copied to a computer. Failure to observe
these precautions could result in loss of data or in damage to the camera
or card.
• Do not touch the card terminals with your fingers or metal objects.
• Do not bend, drop, or subject to strong physical shocks.
• Do not apply force to the card casing. Failure to observe this precaution
could damage the card.
• Do not expose to water, high levels of humidity, or direct sunlight.
[] No Memory Card
If no memory card is inserted, the control panel
and viewfinder will show 1- _F-). If the camera is
turned off with a charged EN-EL3e battery and
no memory card inserted, 1- _F -)will be
displayed in the control panel.
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