FujiFilm Nexia 220 ix Z Owner's Manual page 20

Press the Shutter Release Button halfway down (AF
Fig. 27
lock) without moving the camera and confirm that
the AF lamp (Green) lights. While holding the
Shutter Release Button halfway down to keep the
Auto-Focus lock on, move the camera back to the
original position to recompose your picture, then
press the Shutter Release Button all the way down
to take picture.
✻ The Auto-Focus lock operation can be repeated
any number of times before the shutter trips.
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