Af Area Mode - Nikon D1 Manual

AF Area Mode

Autofocus can be set to focus only on the selected focus area (single area AF)
or to shift focus from one area to the next depending on the movement of the
subject (dynamic AF). By default, when dynamic AF is used in combination
with continuous servo AF, the camera first focuses on the subject in the
selected focus area and then shifts the focus area to keep this subject in focus.
In single servo AF, the camera first focuses on the object closest to the camera
and then shifts the focus area to track the subject as it moves (closest subject
priority). The defaults for dynamic AF can be changed using custom settings.
A
To select between single area and dynamic AF, turn the main command dial
while holding down the [+] button (A). The AF area mode is displayed in the
control panel on top of the camera (B).
Single area AF: The camera focuses on the subject in the area
selected for autofocus (see "Autofocus Area," above). This mode is
useful when focusing on subjects that are relatively stationary.
Dynamic AF: The camera first focuses on the subject in the area
selected for autofocus. If the subject moves to another focus area,
the camera will automatically shift the focus area to follow it (the focus
area shown in the viewfinder will not, however, change). This makes
it possible to focus on subjects that are moving irregularly.
Dynamic AF with closest subject priority: The camera first fo-
cuses on the closest object to the photographer that falls in one of the
five focus areas, and then tracks this subject as it moves to other
focus areas. No focus area indicators are shown in the viewfinder or
in the control panel on top of the camera. This mode does not work
well with telephoto lenses or poorly-lit subjects; use single area AF
instead.
Tip
By default, closest subject priority is used when single servo AF is combined with
dynamic AF, and is not used when continuous servo AF is in effect. Custom
Setting 9 can be used to turn closest subject priority off when single servo AF is
in effect. Similarly, Custom Setting 10 can be used to turn closest subject priority
on when continuous servo AF is used. See "Custom Settings," items 9 and 10.
34
B
Camera Settings: AF Area Mode