Nikon D780, Reference Manual

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465
On-Camera Flash Photography
The options available depend on the mode selected with the
mode dial.
Flash Modes
Option Description Available in
I
[ Fill flash ]
(front-curtain
sync)
This mode is recommended for
most situations. In modes
P and
A , shutter speed will
automatically be set to values
between
1
/
200
s (or
1
/
8000
s with
Auto FP High-Speed Sync) and
1 /
60
s.
b
, P , S , A ,
M , EFCT ( j
and m
excluded)
J
[ Red-eye
reduction ]
(red-eye
reduction)
Use for portraits. The flash fires
before the photograph is taken,
reducing “red-eye” (a flash unit
with red-eye reduction is
required). Not recommended
with moving subjects or in other
situations in which quick shutter
response is required. Do not
move camera during shooting.
b
, P , S , A ,
M , EFCT ( j
and m
excluded)