Pentax K-5 Operating Manual page 75

Deleting Selected Images
You can delete multiple images in the multi-image display at once.
Deleted images Cannot be restored.
_m0 ;protected images cann0t be deleted.
......... ' Y0u Can Select Upto 100 images at a timel
1
Turn the rear e-dial (;,,_,,_) to the
left (toward €;'J)in Playback
mode.
The multi-image display screen appears.
Press the • button.
The screen to select the images to delete
is displayed.
The screen temporarily changes to 36-
image display when [Multi-img Display
Setting] (p.239) is set to 81-image
display.
Select the images to delete.