Pentax OPTIO S Operating Manual page 24

Taking Still Pictures
Viewfieder_ I_ Shutter release button
-- L I_ Power switch
,comoo,tor
zoom - 0ottoo
For the simplest procedure to take still pictures:
The flash fires automatically depending on the light conditions.
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Press the power switch.
The camera will turn on.
Confirm the subject and
shooting information on the
LCD monitor.
The focus frame in the middle of
the LCD monitor indicates the
zone of automatic focusing. You
can change the size of the sub- Focus Frame
ject by pressing the Zoom but-
ton.
: makes the subject bigger.
l_ : makes the subject smaller.
You can check the size of the subject by looking through
the vie',A4inder.
As there is no focus frame in the viewfinder, be sure to
check the focusing area on the LCD monitor.