Pentax K20D manual Focusing, Using the Autofocus, Set the focus mode lever to l or k

104Focusing

4 ShootingFunctions

You can focus with the following methods.

=	Autofocus	The camera is focused when the shutter release
		button is pressed halfway.
\	Manual focus	Manually adjust the focus.

Using the Autofocus

You can also choose the autofocus mode from l(Single mode) where the shutter release button is pressed halfway to focus on the subject and the focus is locked at that position, and k (Continuous mode) where the subject is kept in focus by continuous adjustment while the shutter release button is pressed halfway. The factory default setting is l.

1 Set the focus mode lever to l or k.

		When the shutter release button is pressed
l	Single mode	halfway to focus on the subject, the focus is
		locked at that position.
		The subject is kept in focus by continuous
		adjustment while the shutter release button
k	Continuous mode	is pressed halfway. Even if the subject is not
		in focus, the shutter can be released when
		the shutter release button is pressed fully.