Nikon D2H User Manual page 191

Custom Setting a4: Disable Lock-on
This option controls how autofocus adjusts to
sudden large changes in the distance to the sub-
ject. Highlight a4 Disable lock-on in the second
level of the CSM menu (
multi selector to the right. Press the multi selector
up or down to highlight an option, then press to
the right to make a selection.
Option
Camera waits before adjusting focus when distance to subject
No
changes abruptly. Prevents camera from refocusing when subject
(default)
is briefl y obscured by objects passing through frame.
Camera immediately adjusts focus when distance to subject
changes abruptly. Use when photographing series of subjects at
Yes
varying distances in quick succession.
Custom Setting a5: AF Activation
This option controls whether both the shutter-
release button and the AF-ON buttons can be
used to initiate autofocus or whether autofocus
is only initiated when one of the AF-ON buttons
is pressed. Highlight a5 AF activation in the sec-
ond level of the CSM menu (
multi selector to the right. Press the multi selector
up or down to highlight an option, then press to
the right to make a selection.
Option
Shutter/AF-ON Autofocus can be performed with AF-ON buttons or by pressing
(default) shutter-release button halfway.
AF-ON only Autofocus can only be performed using AF-ON buttons.
171) and press the
Description
171) and press the
Description
CSM MENU
a4 Disable focus tracking
with Lock-On
ON No
OFF Yes
CSM MENU
a5 AF activation
ON
Shutter/AF-ON
OFF
AF-ON only
OK
OK
179