Nikon SB-25 Instruction Manual page 39

TTL Auto Flash Mode: For FA, FE2, FG and Nikonos V Users
Choosing A Flash Method
FA, FE2, FG or Nikonos V users can use the SB-25
Speedlight to perform Standard TTL Flash, for fully auto-
matic though-the-lens (TTL) control of flash exposure.
Standard TTL Flash can be performed by setting the
SB-25 at . In Standard TTL Flash, the flash output level
is controlled by the Speedlight to correctly expose subject.
Set Up and Practice
Before proceeding:
ATTACH SPEEDLIGHT TO CAMERA.
TURN ON BOTH SPEEDLIGHT AND CAMERA.
USE FILM WITH A SPEED BETWEEN ISO 25 AND ISO
400.
Caution
Use the SB-25 exclusively for on-land condi-
tions; it cannot be used in underwater conditions.
Always keep the unit away from salt water, rain or
water splashes.
76
Setting Up SB-25
2
Flash sync mode 1
Flash mode selector
selector at NORMAL
at TTL Auto
3
ISO speed
of film in
use
7
Aperture
value
4
Zoom-head position
1 Choose position (flash mode selector). Confirm
in the LCD panel.
2 Choose position* (flash sync mode selec-
tor).
* Since TTL Auto Flash operation can be performed regardless of the flash sync
mode selector setting, for simplicity, always leave the switch at this position.
3 Set ISO speed of the film in use. Usable film speeds
are from ISO 25 to ISO 400
For instruction, see "Setting ISO Film Speed (Manual
Adjustment)," pages 27 to 28.
4 Set position of the built-in zoom head.
For instruction, see "Setting Zoom-Head Position (Manual
Adjustment)," pages 29 to 30.
Shooting indicator bars in the LCD panel move as the
figure input changes.
Chapter
Setting Up Your Camera
5 Set desired shutter speed*.
* Camera automatically shifts to the fastest synchronization speed if you choose
a speed that is not within the synchronization range.
6 Set your chosen aperture.
3
77