8180
Chapter
3
Set Up and Practice
1
Choose position (flash mode
selector). Confirm appears in
the LCD panel.
2
Choose position
(flash sync mode selector*).
* position is used for Rear-Curtain Sync
Flash, and only with the F90-Series/N90, F4-
Series, F-801/N8008, and F-801s/N8008s. For
details, see page 105.
3
Set ISO film speed and position
the built-in zoom head.
For instructions, see “Setting ISO Film
Speed (Manual Adjustment),” pages
27 to 28, and “Setting Zoom-Head
Position (Manual Adjustment),” pages
29 to 30.
4
Set desired aperture in the SB-25’s LCD panel, then set again on the cam-
era.
For instructions, see “Setting Aperture Value (Manual Adjustment),” pages 28 to
29.
Indicator bars show a appropriate shooting distance range.
Non-TTL Auto Flash Mode — Shooting with Various Lens Apertures
To use various lens apertures for the same subject or when
camera/lens combination is incompatible with TTL Auto
Flash mode, set the SB-25’s flash mode selector to for
Non-TTL Auto Flash operation.
In Non-TTL Auto Flash shooting, light output automatical-
ly changes to match the flash-to-subject distance, but
instead of light being measured through the lens, it is mea-
sured by the light sensor on the front of the SB-25.
The SB-25 can be used in Non-TTL Auto Flash mode with
any Nikon camera/lens combination.
Before proceeding:
✗ ATTACH SPEEDLIGHT TO CAMERA.
✗ TURN ON BOTH SPEEDLIGHT AND CAMERA.
✗ USE APERTURE-PRIORITY AUTO OR MANUAL EXPO-
SURE MODE.
✗ USE SINGLE-SERVO AUTOFOCUS (S or A) OR MANU-
AL FOCUS (M).
1 Flash mode
selector at
Non-TTL Auto
2 Flash sync mode
selector at NORMAL
3 ISO film
speed in
use and
zoom-head
position
5 Appears when flash is fully charged and ready
to fire. Push for test firing. Blinks after firing
indicates possible underexposure.
4 Aperture
value
F90-Series/N90
✗ F-501/N2020 ✗ Nikonos V ✗
F4-Series ✗ F-301/N2000 ✗ F3-Series ✗
F-801/N8008 ✗ F-401/N4004 ✗ F2-Series ✗
F-801s/N8008s ✗ F-401s/N4004s ✗ FM2 ✗
F-601M/N6000 ✗ FE2 ✗
F-401x/N5005 ✗ FG ✗
F-601/N6006 ✗ FA ✗ FG-20 ✗
APPLICABLE NIKON SLR MODELS
SB-25_En 03.1.14 8:18 PM Page 80
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