Nikon D750 (body only) 业主指南

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In full-frame, zoom, thumbnail, and calendar playback, press the 
L (U) button to protect the current picture from accidental 
deletion. Protected files are marked with a 

P icon and can not 

be deleted using the 

O (Q) button or the Delete option in the 

playback menu. Note that protected images will be deleted 
when the memory card is formatted (

0 375). To remove 

protection from a picture so that it can be deleted, display or 
highlight it and press the 

L (U) button.

A

To remove protection from all images in the folder or folders currently 
selected in the Playback folder menu, press the 

L (U) and O (Q) 

buttons together for about two seconds during playback.

L (U) button