Casio EX-V8 - Manual (Page 130)

130
ADVANCED SETTINGS
4. Press the shutter button all the way down
without pausing.
Pressing the shutter button all the way without pausing at
the halfway type will record with Quick Shutter, without
performing the normal Auto Focus operation.
IMPORTANT!
• Quick Shutter will not work when you are using a very
high zoom factor. In this case, you should use Auto Focus
instead.