Pentax ist d 사용자 설명서

4

The camera adjusts the focus automatically. There are two autofocus 
modes. When you press the shutter release button halfway, l (Single 
mode) locks the focus and k (Continuous mode) adjusts the focus 
continuously. (p.70, 71)

You can adjust the focus manually. (p.72)

You can set the camera to automatically select the focus point, select a 
specified position or the center position within the viewfinder. (p.74)

The following three methods are provided for adjusting focus.

1

Set the focus mode lever to 
l