Nikon 8400 - Manual (Page 23)

13
First Steps
The Eject Button
If the eject button is up when the card-slot cover is closed,
closing the cover will partially eject the memory card, causing
errors when the camera is turned on. Be sure the eject button
is down before inserting memory cards.
Removing Memory Cards
Memory cards can be removed without loss of data when the
camera is off. To remove memory cards, turn the camera off
and open the memory card slot cover. Press the eject button to
pop it up (
ቢ
), then press it again to partially eject the card (
ባ
).
The card can then be removed by hand. Note that memory
cards may become hot during use; observe due caution when
removing memory cards.
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