SIGMA DP1 - Manual (Page 84)

83
TO LOCK A SINGLE FILE
1
Use the
button to select the file to be locked in Contact Sheet or
Single-Image View.
2
Press the button to open [ Playback Menu ].
3
Use the button to select [Lock] and press the button.
4
Use the button to select [Lock].
5
Press the button or the
button to apply the setting or the button
to close the sub-menu without making any changes.
A icon will appear in the upper-right corner of the file indicating the file
is locked.
UNLOCKING A SINGLE FILE
To unlock a locked file, select the locked file, then select [Unlock] in step 4
and press the
button.