Nikon SB-28 - Manual (Page 71)

For cameras in all groups
In the TTL Auto Flash
t or non-TTL Auto Flash ˙ mode, some plus
compensation may be necessary when the background includes a mirror,
white wall or other highly reflective surface. Likewise, some minus
compensation may be required when the background is dark or includes
subjects of low reflectivity.
You can also make exposure compensation to create flash photographs
which are somewhat brighter or darker to match the subject or your
creative preferences.
Exposure compensation methods can be divided into five categories. The
flash output level is automatically compensated in category 1, and
manually compensated by the user in the categories 2 to 5. But this may
vary depending on which camera you are using.
1 Automatic exposure compensation in TTL Auto Flash
t mode
In 3D multi-sensor balanced fill-flash, Multi-sensor balanced fill-flash, and Center-
weighted/Spot fill-flash operations, the flash output is automatically balanced to
keep both subject and background correctly exposed. To cancel automatic
exposure compensation, change the flash mode to Standard TTL Flash.
2 Intentional exposure compensation of the SB-28’s flash output in
TTL Auto Flash
t mode
The SB-28’s flash output level can be compensated without affecting the
background exposure. (See page 72)
3 Intentional exposure compensation of the SB-28’s flash output and
the background in TTL Auto Flash
t mode
Use your camera’s exposure compensation control button or dial to make
exposure compensation to both foreground and background. (See page 74)
4 Intentional exposure compensation of the main subject in Non-TTL
Auto Flash
˙ mode
Set a different aperture on the camera than that set on the SB-28 to make the
foreground subject lighter or darker. (See page 75)
5 Intentional exposure compensation of the main subject in Manual
ƒ mode
Intentionally set a different aperture on the camera than that set on the SB-28 or
change the flash output level. (See page 75)
Intentional exposure compensation described in categories 2 to 5 in TTL Auto
Flash
t, Non-TTL Auto ˙ and Manual ƒ modes is explained on the following
pages.
71
Exposure compensation in flash photography