4. Press the OK button to lock in the setting.
My Recommendation: The simplest setting to use is Auto,
since that lets the camera determine whether there is enough
light coming through the Viewfinder for you to see the AF
point(s) at the start of autofocus. If you want to force the AF
point(s) to flash each time you start autofocus or move the
point(s) with the Multi Selector, you can set AF point
illumination to On. I wouldn’t leave this set to Off unless I
was in a consistently lighted studio where the Viewfinder has
good contrast.
Focus Point Wrap-Around
Custom setting a7 (D300S and D300)
(User’s Manual – D300S page 267; D300 page 272)
Focus point wrap-around allows you to control how AF point
scrolling on the Viewfinder works. When you are scrolling
your selected AF point to the right or left, or even up and
down, in the array of 51 points, it will eventually come to the
edge of the Viewfinder area. This setting allows you to set
whether the AF point simply stops when it gets to the edge or
scrolls to the opposite side. If you are scrolling the AF point
to the left and it reaches the far left side of the screen, it will
stop. If Focus point wrap-around is set to Wrap, the point will
not stop and will reappear on the right side of the screen. It
“wraps” around. This setting works the same way in an up
and down direction. If you scroll off the top of the sensor
area, the AF point will reappear on the bottom when Wrap is
enabled.
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