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Autofocus with Optional Autofocus
Speedlights
Although the F4's autofocus works
at
lighting levels
as
low
as
EV
minus
1,
performance may
vary
depending on subject de-
tail and contrast.
In
dimmest light conditions, use Nikon speed-
lights during AF operation,
if it
is
too dark. The speedlight's AF
Illuminator lights up only in the Single
Servo
Autofocus mode.
1. Mount Nikon Autofocus Speedlight S8-24, S8-23, S8-22 or
88-20
onto the F4's accessory shoe.
2. Compose picture through viewfinder and lightly press
shutter release button.
3. Speedlight's AF illuminator lights up and autofocus
operation begins.
-
The
focal lengths available when using
AF
Illuminator with
AF
Nikkor lenses are 24mm to 105mm.
-
For
details, see Nikon speedlight instruction manual.
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