Canon PowerShot SD1400IS User Manual page 86

The focus can be locked. After locking the focus, the focal distance will not
change even when you release your finger from the shutter button.
!;] Lock the focus.
Keep the shutter button pressed halfway
and press the 4 button.
The focus locks and AFL appears on the
screen.
If you release your finger from the shutter
button and press the _ button again,
AFL
will disappear and the focus will unlock.
2 composo tho scooo o.d_.oot
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