Nikon D70 Manual page 79

Camera focuses on subject in selected focus area.
Beep sounds when camera has focused. Focus will
remain locked while shutter-release button is pressed
half way.
Camera focuses on subject in selected focus area. If
sub ject moves before cam era has focused, camera
will focus based on in for ma tion from other focus
areas. Beep sounds when camera has focused. Fo-
cus will remain locked while shut ter-re lease but ton is
pressed half way.
As above, except that camera automatically selects
focus area con tain ing sub ject closest to camera.
Beep sounds and active focus area is highlighted in
viewfi nder when camera has focused.
Camera continues to focus on subject in selected
focus area while shutter-release button is pressed
halfway.
Camera focuses on subject in selected focus area.
While shutter-release button is pressed halfway, cam-
era tracks sub ject as it moves from one fo cus area to
the next.
As above, except that camera automatically selects
focus area con tain ing sub ject closest to camera.
Active focus area is highlighted in viewfi nder when
camera has focused.
How it works When to use it
Use with static sub jects when
time is avail able to com pose
pho to.
Use with relatively static sub-
jects when time is avail able to
com pose photo.
Use when sure that sub ject
will be clos est ob ject to cam-
era but un sure where it will
ap pear in fi nal com po si tion.
Use with moving subjects that
can be continuously framed
in single focus area.
Use with subjects that are
moving unpredictably.
Use with erratically mov ing
sub jects when you know
sub ject will be clos est ob ject
to camera.
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