Pentax K-5 Operating Manual page 127

3
Press the four-way controller (5)
and use the four-way controller
(23) to select [Enable AF].
Enable AF
Cancel AF
4
Press the 4 button.
5
Press the 3 button three times.
The camera is ready to take a picture.
6
Press the = button while
looking through the viewfinder.
Autofocus is performed.
l
Single mode
k
Continuous mode
7
Press the shutter release button.
When [Enable AF] is assigned to [Shutter Button Half Press] in [Button
Customization], press the shutter release button while holding down the
= button.
The picture is taken.
Autofocus is performed by using the = button or the
shutter release button. (default setting)
\ appears in the viewfinder while the = button is
pressed. Autofocus is not performed when the shutter
release button is pressed. (Take your finger off the =
button to return to normal autofocus mode.)
When the = button is pressed and the subject comes
into focus, the Focus Lock function is activated while
the button is pressed.
The subject is kept in focus while the = button is
pressed.
AF Button
Enable AF
Cancel AF
AF is performed when
the AF button is pressed
MENU
Cancel
125
OK OK
4