Nikon D300 User Manual page 273

▪ Auto – If the
selected AF point(s) will briefly flash red when you
press the
start autofocus. If the background is bright, you'll have
no trouble seeing your AF point's little black squares, so
they don't flash red when you start autofocus.
▪ On –
The selected AF point is highlighted in red when you
start autofocus, regardless of the light level of the
background.
▪ Off – The selected AF point does not light up in red
when you start autofocus. It always stays black.
First, let's examine the screens and steps to configure
point illumination. Then we'll talk about how the settings
work (see Figure
Figure 4-11. AF point illumination
1. Select a Autofocus
scroll to the right (see
2. Highlight
(see Figure
3. Choose one of the three choices from the menu. In
Figure 4-11, image 3,
Viewfinder's
Shutter-release button
4-11).
from the
Figure
AF point illumination
4-11, image 2).
Auto
273
background is dark, the
or the AF-ON button
Custom Setting Menu
4-11, image l).
and scroll to the right
has been selected.
to
AF
and