Pentax Optio A10 Operating Manual page 66

• The countdown is displayed on the LCD monitor when you press
the shutter release button.
• If you press the shutter release button halfway while the camera is
counting down, it stops counting down. And if you press the
shutter release button fully, it starts counting down again from the
beginning.
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Troubleshooting "Subject is not in focus" p.175
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