Reference Manual

207
Deleting Pictures
A
Deleting Copies
If the picture selected in the playback display
when the
O
button is pressed was recorded
with two memory cards inserted and [Backup]
or [RAW primary - JPEG secondary] selected
for [Secondary slot function], you will be
prompted to choose whether to delete both
copies or only the copy on the card in the
current slot (
0
259).