Nikon os Speedlight SB-102 - Manual (Page 28)

CONTROLS IN DETAIL —continued.
Because of these three factors, the ready-light may
blink to indicate that the light output was insufficient
for correct exposure even if the subject was within the
coupling distance range.
Other Warning Functions:
1. When the shutter speed/mode selector dial of the
Nikonos-V is set to M90 (l/90sec.) or B (Bulb), or
when the shooting mode selector switch of the flash
unit is set to "TTL” when using the Nikonos IV-A.
2. When the sync cord is not securely connected to the
Nikonos-V.
3. When the ASA/ISO film speed setting dial of the
Nikonos-V is set to beyond ASA/ISO 400.
Camera and Speediight Ready-Lights'
Camera Shutter Speed Setting (sec.) Shooting mode SB-102 ready-light
Camera ready-light
Meter ON 1 Meter OFF
A, 1/1000 to 1/30 TTL Lights Lights or biinks' Does not light
Nikonos-V
A, 1/1000 to 1/30 MFULL, M1/4, M1/16, AUTO' Lights Lights Does not light
M90(1/90), B TTL Lights — Blinks
M90 (1/90), B MFULL, M1/4, M1/16, auto ' Lights — Lights
A TTL Lights Biinks Does not light
Nikonos IV-A
A MFULL, M1/4, M1/16, AUTO' Lights Lights Does not light
M(l/90), B TTL Lights — Biinks
M (1/90), B MFULL, M1/4, M1/16, AUTO' Lights — Lights
Nikonos iii
1/500 to 1/30" TTL Lights — —
1/500 to 1/30" MFULL, M1/4, M1/16, AUTO' Lights — —
1. W hen the speediight has recycled.
2. W hen the ASA/ISO film speed dial is set to beyond ASA/ISO 400.
3. In the auto mode, the optional Sensor Unit SU-101 is required.
4. Speeds of 1/500 second, 1/250 second, and 1/125 second cannot be used because the sync shutter speed is 1/90 second or slower.
I 1= Proper flash synchronization is not possible because the shutter speed/shooting mode is improperly set.
• W hen the camera is set at M90 or M. the camera's exposure meter will not operate even if the shutter release button is depressed.
Test Firing
To determine whether or not the flash illumination is
sufficient for a correct exposure, especially when using
the non-TTL automatic mode with distant subjects or
when using bounce-flash photography, test-fire the
flash unit. To test-fire the SB-102, turn its power switch
to “TEST” after the ready-light on thé flash unit lights. If
the ready-light on the flash unit begins blinking after
test-firing, switch to a larger aperture (a numerically
smaller f-number), if possible, or move closer to the
subject before shooting.
This setting also enables you to repeatedly fire the flash
manually with the camera set at B (open-flash firing) to
create multiple-exposure stroboscopic effects or
“paint” the scene with light. When doing this, discon­
nect the speediight from the camera or the flash unit
will not fire, even if its power switch is set at “TEST.”
(Remove the sync cord and replace the camera’s flash
socket and the flash unit’s sync socket cover before
entering the water.)
•After test firing or open-flash firing, reset the speediight's power switch
to "ON"or "OFF."
In the TTL mode, the shutter must be released to test-fire the flash
unit, but if there is no film in the camera, the ready-light will blink even
if the light output was sufficient for correct exposure.
To avoid this, place a strip of cut film (provided it is not too old) or a
piece of gray paper under the camera's film pressure plate, then
release the shutter.
• Even if two speedlights are connected by the optional Double Sync Cord,
only the speediight tha t is being test-fired will fire.
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