Pentax K-5 Operating Manual page 140

The focus indicator O appears and you
will hear a beep when the subject comes
into focus.
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Focus indicator iiiiiiiiiiiiiiiiiiiiiiiiiiiii
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, Adjustthefocus manually using the matte field in the viewfinder when the
i subject is difficult to focus (p.75) and the fOCUS indicator w! I not appear:
, The beep that sounds when the image is focused can be turned off. (p.288)
You can manually adjust the focus using the matte field in viewfinder.
I Set the focus mode lever to MF.
2
Look through the viewfinder and
turn the focusing ring until the
subject is clearly visible in the
viewfinder.
, J