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FLASHPHOTOGRAPHY---------------------
The Nikon F3AF has been specially designed to make electronic
flash photography easier than ever. When used with
an
acces-
sory Nikon dedicated flash unit, the camera offers fully auto-
matic through-the-Iens (TTL) control of the flash exposure. This
means that while the shutter
is
open, the camera's silicon
photodiode (SPD) reads the light reflected directly off the film
and tells the flash unit to cut itself off when the exposure
is
correct.
To
prevent mistakes, the camera also offers automatic switch-
over of the shutter speed for proper synchronization. With the
shutter speed dial @ set at A or
1/125
sec. or above, the shutter
speed
is
automatically switched to 1/80 sec. as soon as the
flash
is
turned
on
.
As
a reminder, the
LCD
shows 80
on
auto or
M 80
on
manual. For creative fill-
in
flash effects, you can set the
speed manually to 1/60 sec. or below and the shutter fires at the
speed set with the speed
in
use displayed
in
the viewfinder.
For
non-dedicated flash units,
an
X
se
tting
is
provided, giving
you the proper manual speed of
1/80 sec. At X,
M+
80
appears
in
the
LCD
. However, if you use a Nikon dedicated flash unit at
this setting, M 80 appears
as
soon
as
the unit
is
turned
on
.
When shooting manually with any flash unit,
it
is
necessary to
determine the flash unit's guide number for the film you are
using; then set the aperture to match the shooting distance.
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