Nikon D300S - A4: Focus Tracking with Lock-On; A4 •Focus Tracking with Lock-On; As: AF Activation; A6 AF Point Illumination

a4: Focus Tracking with Lock .. On MENU button ... trI Custom Settings menu
This option controls how autofocus adjusts to sudden large
changes in
the distance to the subject.
Option
AF5 Long
AF: Normal
AF~ Short
Off
Description
When the distance to the subject changes abruptly, the
camera waits for
the specified period (long, normal, or
short) before adjusting the distance
to the subject. This
prevents
the camera from refocusing when the subject is
briefly obscured by objects passing through the frame.
The camera immediately adjusts focus when
the distance to
the subject changes. Use when photographing a series of
subjects at varying distances in quick succession.
as: AF Activation
MENU button ... trI Custom Settings menu
If Shutterl AF-ON is selected, both the
shutter-release button and the AF-ON button
can be used to initiate autofocus. If AF-ON
only is selected, autofocus is only initiated
when the AF-ON button is pressed.
a6: AF PointUlumination
MENU button ... t:) CustomSettings menu
Choose whether the active focus point is highlighted in red in the
viewfinder.
266
Option
Auto
On
Off
Description
The selected focus point is automatically highlighted as
needed to establish contrast with the background.
The selected focus
point is always highlighted, regardless of
the brightness of the background. Depending on the
brightness of the background, the selected focus point may
be
difficult to see.
The selected focus point is not highlighted.