Nikon SB-28 - Manual (Page 24)

Six flash operations are possible in the TTL Auto Flash mode:
3D Multi-Sensor Balanced Fill-Flash
(Applicable to F5, F100, F90X/N90s, F90-Series/N90, F80-Series/N80-Series, F70-Series/N70)
This mode automatically controls flash output to keep both subject and
background correctly exposed. The SB-28 fires a series of nearly invisible
preflashes, called Monitor Preflash. These preflashes are detected by the
TTL multi-sensor in Group I cameras and the data is then integrated with
distance information from D-type Nikkor lenses and other exposure data to
determine the optimal flash shooting distance range and flash output level
for balanced fill-flash exposure. This is especially effective for scenes that
include: (1) a mirror, white wall or other highly reflective surface or (2)
unwanted obstacles in front of the subject.
Multi-Sensor Balanced Fill-Flash
(Applicable to F5, F100, F90X/N90s, F90-Series/N90, F80-Series/N80-Series, F70-Series/N70)
This mode automatically controls flash output to keep both subject and
background correctly exposed when non-D-type AF or AI-P-type Nikkor
lenses are used. The SB-28 fires a series of nearly invisible Monitor
Preflashes, which are detected by the TTL multi-sensor to help determine
the best exposure for both subject and background. This method is most
effective for scenes that include: (1) a mirror, white wall, or other surface
highly reflective surface, or (2) a subject positioned against a distant
and/or plain background, such as an empty sky, clouds, etc.
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t t
flash modes
* In combination with the camera’s exposure meter and TTL flash sensor, the shutter
speed, aperture, and SB-28’s flash output are automatically controlled to keep both
subject and background correctly exposed.
** 3D Multi-Sensor Balanced Fill-Flash and Multi-Sensor Balanced Fill-Flash are
generally referred to as Automatic Balanced Fill-Flash with TTL Multi Sensor.
flash modes
3D Multi-Sensor Balanced
Fill-Flash
Multi-Sensor Balanced
Fill-Flash
Matrix Balanced
Fill-Flash
Center-Weighted Fill-Flash/
Spot Fill-Flash
Programmed TTL
Auto Flash
Standard TTL Flash
Automatic
Balanced
Fill-Flash*
Automatic Balanced Fill-Flash
with TTL Multi Sensor**