Pentax K20D Operating Manual page 111

2
Center the subject to focus in
the viewfinder and press the
shutter release button halfway.
The focus indicator ] appears and
you will hear a beep when the subject
comes into focus. (When blinking, the
subject is not in focus.)
3
Lock the focus.
Keep the shutter release button pressed halfway. The focus will remain
locked.
4
Re-compose the picture while
keeping the shutter release
button pressed halfway.
• The focus is locked while the focus indicator ] is lit.
• Turning the zoom ring in focus lock mode may cause the subject to be out of
focus.
• The beep can be turned off. (p.219)
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