Pentax K-m/K2000 - Manual (Page 113)

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S
h
o
o
ting
F
unc
tion
s
4
2
Press the = button.
Auto focusing is performed.
You can choose from the following three autofocus modes. The default
setting is f (Auto).
1
Set the focus mode lever to =.
2
Press the 4 button in the status screen.
The control panel appears.
Press the M button when the status screen is not displayed.
When [Cancel AF] is set, \ appears in the viewfinder while the = button is
pressed. Autofocus does not activate when the shutter release button is
pressed (take your finger off the = button to immediately return to normal AF
mode).
Setting the AF Mode
f Auto
Switches automatically between l and k mode
according to the subject.
l Single mode
When the shutter release button is pressed halfway to
focus on the subject, the focus is locked at that position.
k
Continuous
mode
The subject is kept in focus by continuous adjustment
while the shutter release button is pressed halfway.
Even if the subject is not in focus, the shutter can be
released when the shutter release button is pressed
fully.