Nikon D810 - Flash Modes

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Flash Modes
The camera supports the following flash modes:
Flash mode Description
Front-curtain
sync
This mode is recommended for most situations.
In
programmed auto and aperture-priority auto modes,
shutter speed will automatically be set to values
between
1
/ 250 and
1
/ 60 s (
1
/ 8000 to
1
/ 60 s when an optional
flash unit is used with Auto FP High-Speed Sync;
0 329).
Red-eye
reduction
Red-eye reduction lamp lights for approximately one
second before main flash.
Pupils in subject’s eyes
contract, reducing “red-eye” effect sometimes caused
by flash.
Owing to one-second shutter-release delay,
this mode is not recommended with moving subjects
or in other situations in which quick shutter response
is required.
Avoid moving camera while red-eye
reduction lamp is lit.
Red-eye
reduction with
slow sync
Combines red-eye reduction with slow sync.
Use for
portraits taken against a backdrop of night scenery.
Available only in programmed auto and aperture-
priority auto exposure modes.
Use of a tripod is
recommended to prevent blurring caused by camera
shake.
Slow sync
Flash is combined with shutter speeds as slow as 30 s
to capture both subject and background at night or
under dim light.
This mode is only available in
programmed auto and aperture-priority auto
exposure modes.
Use of tripod is recommended to
prevent blurring caused by camera shake.