Pentax SF1 - Page 9

3. As illustrated, the CENTIC panel shows the selected
exposure mode. If the panel remains inactive or all
its indicators light up, the battery is either exhausted
or not inserted properly, so check it again.
* Battery Warning Mark
When the battery weakens, the battery warning mark [<= ■ ]
on the CENTIC panel and the viewfinder indicators will
start blinking to inform you of this condition. Replace
the battery as soon as possible. If the battery drops
below the required voltage, the shutter release button will
lock automatically, and the indicators on the CENTIC
panel will all light up.
{"AA"-size Battery Grip)
As illustrated, the ''AA” Battery Grip (optional) can be
used with four "AA"-size alkaline batteries of the same
type. Make sure they are inserted properly.
• '^AA'^-size manganese batteries are also usable.
However, their power supply is limited and use of alkaline
batteries is recommended.