Nikon SB-102 instruction manual Replacing the Target-light, Multiple Flash Photography

CONTROLS IN DETAIL-continued____

Replacing the Target-light

If the target-light burns out, replace it with a new one (provided) by performing the following procedures:

1.Remove the battery chamber cap (see page 8).

2.Remove the C-type battery cartridge.

3.Turn the target-light holder @ counterclockwise ap- proximately 45 °.

4.Pull up on the holder.

5.Remove the old lamp and replace it with a new one .

6.Replace the holder and turn it clockwise 45°.

7.Replace the C-type battery cartridge.

8.Replace the battery chamber cap.

o The target·light can also be replaced by an authorized Nikon dealer or service center if you desire.

Multiple Flash Photography

The S8-102 has wireless slave flash capability, enabling it to be triggered by the light fired from another flash unit.

For multiple flash operation as shown in the diagram, use either an S8-102 or S8 -101 as the master flash unit (the speedlight connected to the camera). Set the T-S switch of the slave flash unit (the speedlight not con- nected to the camera) to " SLAVE" or "T &S."

After confirming that the flash units'ready-lights are lighted, release the shutter to fire the master flash unit. At the same time, the slave unit will be triggered by the light fired from the master flash unit.

o There is no limit to the number of SB·102 Speedlights that can be used as slave flash units at one time.

oFor multiple flash operation, all flash units must be in the manual mode. In the TTL and non· TTL automatic shooting modes, the correct exposure cannot be obtained because the light from each speedlight alters the exposure measurement.

58·102 or 58-101 (master unit)

When two or more flash units are the same distance from the subject and face approximately the same direction, the combined GN of the units can be deter- mined with the following equation:

Combined GN = VGN l'+ GN22 + GN32 + .

Where GN 1. 2. 3 are the guide numbers of the flash units

o Because the slave flash unit is triggered when the light from the master flash unit reaches it directfy or is reflected to it by the subject, if the light from the master flash unit does not reach the slave flash unit or if there are strong light sources nearby, the slave flash unit will not fire. For best results, test· fire the entire multiple flash system by test firing the master flash unit before shooting.

o During slave flash photography, avoid other persons using speedlights or the bursts from their flash units will trigger your slave unit.

o The slave flash unit may be triggered by the light from a fluorescent lamp.

Daylight Fill-In Flash Photography

When shooting in daylight, a backlit subject may come out almost as a silhouette if the background is correctly exposed. If, on the other hand, exposure compensation is made to correctly expose the s.ubject, the back- ground may be washed out. To fill in the shadows and balance the illumination levels of the subject and the background in daylight shooting , use daylight fill-in flash photography.

When using the Nikonos-V, its viewfinder LED indicator will blink to indicate the correct shutter speed under natural lighting . To obtain the correct exposure with daylight fill -in flash shooting , turn on the flash unit and select progressively smaller f/stops (numerically larger f-numbers) until the camera 's1/125 second and 1/60 second LEDs begin blinking or until eith.er the 1/60 second or the 1/30 second LED indicator blinks. Make sure the subject is within the coupling distance range and, if the viewfinder ready-light is lighted, release the shutter.

Operable shutter speed (1/90sec.)

Adjust the aperture until one or two of these LED indicators begins blinking .

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