ASAHI PENTAX Z-70 Operating Manual page 38

(BNILOOHS) моцунзао 2ISV8 H
Purpose
The camera focuses with the autofocus frame in the
center of the viewfinder. When the main subject is off
the autofocus frame, the main subject will not be fo-
cused properly. Use the focus lock technique to bring
the main subject into focus.
How to Use
1. When the composition does not allow the autofocus
frame to be placed over the most important subject
in the picture, the camera will focus on the back-
ground as shown in the illustration.
E v
. . To prevent this, center the autofocus frame on the
main subject and keep depressing the shutter release
button halfway down. The in-focus indicator remains
on, indicating that the focus is temporarily locked.
3. While holding the shutter release button halfway
down, re-aim the camera or recompose the picture,
then depress the shutter release button all the way to
release the shutter.
* Lifting your finger off the shutter release button
clears the in-focus indicator [СУ] in the viewfinder and
cancels the focus lock function.
* To refocus on another subject, lift your finger off the
shutter release button.