Nikon
NIKONOS Speedlighf
INSTRUCTION MANUAL
NOMENCLATURE_ _ _ _ _ __
CD Synchro socket index
Joint collar
@
Flash head positioning index @
Joint plate
®
i ion mark @
i ion mark (@I
(J) Sensor socket
®
ro socket
® Synchro socket cover
Joint
@
@ Snp,erllinlht
Arm@
® Camera plug and locking ring
Grip
@ Sensor holder socket
O-rings and lubricant @
@ Sensor holder positioning pin
@ Bracket slot
@ Bracket screw
Arm knob @
@Bracket
@ Buckle lock/release latch
@
Battery chamber cap index @
Target -light holder
@
mode selector
®
T-S switch
®>
Power switch
®
calculation dial sc rew
® Exposure calculation dial
Exposure calculation dial
® Distance scale
scale
@ Distance lines
@ Non-TTL auto shooting aperture scale
@ Non-TTL auto shooting aperture index
scale
2
CONTENTS _ _ _ _ _ _ _ __
NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
FOREWORD .. . . ... . . .. . ...... . ........ .. . ..... 4
PREPARATION .......... ................... 4-6
Examining and lubricating the O-rings ... .. 5
The O-rings and their sealing method .... . . 6
TIPS ON SPEEDLIGHT CARE. . . . . . . . . . . . . . . . . . . .. 7
BASIC OPERATIONS . .. ..... ............... 8-16
CONTROLS IN DETAIL . ......... . .... .. .... 17-30
Bracket ... .. ... .. .... . .... . ... .. . .. . ... ... 17
Arm .... .. ... . ....... . . .. . . . .. .. .. . . . .. . . . 17
Joint . ....... . . . .... . . . .. . . . .. . . . . . . . . ... . 18
Close-Up Shooting in the Non-TTL
Automatic Mode . . . . . . . . . . . . . . . . . . . . . . .. 18
Synchro Socket . . . . . . . . . . . . . . . . . . . . . . . . . .. 19
Sensor Socket . . . . . . . . . . . . . . . . . . . . . . . . . . .. 19
Sensor Unit SU-101 (Optional). ... .. . . ... ... 20
Synchronization Speed . .. ....... . ........ 20
Shooting Mode Selector. . . . . . . . . . . . . . . . .. 21
Exposure Calculation Dial . . . ... . ... . .. . . . . 22
TTL Automatic Flash Control . . . . . .... . . 22-23
Non-TTL Automatic Flash Control. . . . . . . . . .. 24
Manual Flash Control ..... . . . . . . .... . . 25-26
Exposure Compensation . . . . . .... ... .. 26-27
Ready-Light .. . .. . . ...... . . .. .. .. .. ... 27 - 28
Test Firing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 28
Cord Fastening Hanger . . . . . . . . . . . . . . . . . .. 29
Wide-Flash Adapter SW-102 . . ..... . ... . .. . 29
Target-Light. ......... . . . ....... ... . . . . 29-30
Multiple Flash Photography . . . . . . . . . . . . . . . 30
Daylight Fill-In Flash Photography. . . . . . . . .. 30
TIPS ON SPEEDLIGHT PHOTOGRAPHY .. . . . ... .. 31
OPTIMUM BATTERY PERFORMANCE. . . . . . . . . . .. 32
ACCESSORIES .... . ... . . ... ... . . .... ... . .. 33-34
Sensor Unit SU-101 . . . . ... . ......... .... . . . 33
Sensor Holder (for SB-102) . . . .. . ... . . . . ... . 33
Extension Arm .............. . ......... . .. . 33
Double Flash Bracket . . . . . . . . . . . . . . . . . . . . . 33
Double Sync Cord . . . . . . . . . . . . . . . . . . . . . . . . 34
Protectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 34
Speed light Case SS-101 (Provided) . .. .. . . . 34
O-rings and Lubricant ......... .... .... . . . 34
SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 35
Speedlight Case SS·101
3
FOREWORD_ _ _ _ _ _ _ __
The Nikonos 8peedlight 88-102 , an amphibious highperformance electronic flash unit with a sil icon-controlled rectifier and series circuitry, is designed for use
with the Nikonos-V, Nikonos IV-A, and Nikonos III. The
88-102 can be submerged to a depth of 50 meters
(160 feet) and withstand pressure of up to 6kg/cm 2
(85 Ib/in 2) , enabling it to be used in environments where
regular speedl ights could not be taken .
In combination with the Nikonos-V, the 88-102 features
automatic through-the -Iens (TTL) flash exposure control. This means the silicon photodiode (8PD) in the
Nikonos -V's shutter box reads the light passing through
the lens and then automatically signals the speedlight
to turn itself off when the exposure is correct. 8ecause
TTL flash offers a wide range of useable apertures and
shooting distances, depth of field is easy to control and
shooting as close as 0.3m (1 tt) is possible .
With the optional 8ensor Unit 8U-101 , the 88-102 can
be used for non-TTL automatic flash photography in
combination with the Nikonos -V, Nikonos IV-A, and
Nikonos III. In this mode, flash output is automatically
controlled by the 8 U-101 .
This speed light has the same area of coverage as a
28mm lens. When the Wide-Flash Adapter 8W-102
(provided) is used, the area of coverage increases to
that of a 15mm lens.
The 88 -102 also features manual control with three
power settings ("FULL," " M1/4," and " M1/16" ), slave
firing capability for wireless multiple flash photography,
and a target-light for close -up shooting. The target-light,
pOSitioned in the center of the flash head, shoots a
beam of light at the subject to help you aim the flash
head at the subject. In addition to the equipment mentioned , a variety of optional accessories is available to
increase the versatility of the 88 -102.
Even though this speedlight is extremely easy to operate, you should still familiarize yourself with the preparatory steps and basic operations explained in the
first two sections of this manual. For more detailed
information, refer to "CONTROLS IN DETAIL" and
"TIPS ON FLASH PHOTOGRAPHY." A few minutes
wisely invested now will payoff later in years of rewarding photographic experiences.
PREPARATION _ _ _ _ _ _ _ __
STOP! READ THIS NOTICE BEFORE USING YOUR SB·102. THE O·RING SEALS
MUST BE EXAMINED AND LUBRICATED BEFORE USE TO AVOID DAMAGING
THE SPEEDLIGHT.
This Nikonos 8peedlight 88-102 uses O-rings to seal
and waterproof the junctions between parts. Your
Nikonos 8peedlight 88-102 should not be considered
waterproof until you have examined the user-serviceable O-rings (one each for the battery chamber cap @ ,
the sync cord's @ camera and speedlight plugs , and
the synchro socket and sensor socket covers ® @).
They must be in perfect, undamaged condition and
properly lubricated prior to each use. Read the following instructions thoroughly to familiarize yourself with
the maintenance of the O-rings.
8ecause the outer surface of your Nikonos 8peedlight
88-102 has been specially treated to make it waterproof, it must be protected from impact. If it becomes
damaged, send it to a qualified technician for service
before the next use.
Your Nikonos 8peedlight 88-102 is watertight only when
in perfectly serviced condition, when all O-ring seals
are in perfect condition, and when all components are
properly assembled and closed .
Pay special attention to the instructions for installing
the O-ri ngs because they are what make the Nikonos
8peedlight 88-102 watertight. For the O-rings to perfo rm properly, they must be in perfect condition (with
no cuts, tears, or other imperfections) and properly
lubricated. If they are not, they will not perform properly
and may allow water to enter your flash unit. To prevent
4
the accidental use of a defective O-ring , always discard
old rings .
The channels into which the O-rings fit must be free of
any foreign matter and in their original , smoothly finished
condition. If they are not, the O-rings will not seat properly and may allow water to enter your flash unit. If any
channel in your Nikonos 8peedlight 88 -102 becomes
damaged, send the unit to a qualified technician for
service before the next use.
Your Nikonos 8peedlight 88-102 contains a series of
O-rings. 80me are factory-installed and cannot be
serviced by you . Once each year, send your flash unit
to a qualified technician so that these O-rings can be
serviced. Do not attempt to disassemble the unit and
service these O-rings yourself.
All of the O-rings in your Nikonos 8peedlight S8-102
that can be serviced by you must be examined at the
end of each dive day and, if possible , after each dive.
PREPARATION-continued ----------------------------------Examining and lubricating the O-rings:
1. To remove the O-rings, except those in the synchro
socket and sensor socket covers, grasp the ring between your thumb and forefinger. Pinch your fingers
together as you slide them in the direction of the
arrow to create slack in the O-ring. Then grasp the
slack portion with your other hand and pull the ring
off (see Fig. 1).
To remove the O-rings in the synchro socket and
sensor socket covers , use the edge of a credit card
or dive card or some thin , blunt, instrument. Never
use a knife or other sharp-edged object. Push up
on the center of the cover with a fingertip (or pointed
object), insert the card under the ring , and pull it up
to lift the O-ring out (see Fig. 2). Do not scratch the
O-ring in the process.
2. Visually examine each O-ring for imperfections. If
any O-ring is damaged (by tears, cuts, or other imperfections), discard it immediately. If any O-ring has
dirt, sand , hair, or foreign matter on it, rinse the O-ring
in fresh water to remove it.
3. When lubricating the various parts of your flash unit,
use only the special non-water-soluble silicone
lubricant suppl ied with the speedlight. Never use
other lubricants (such as Vaseline) which are watersoluble .
4. To lubricate the O-rings, smear a small amount of the
special silicone lubricant on your fingertips and then
gently run each O-ring between your fingertips .
Never use a brush or similar object to apply the lubricant ; small hairs may fall into the channel and allow
water to enter the flash unit. While lubricating each
O-ring, examine it with your fingertips for imperfec-
Fig. 3
tions . If an O-ring is properly lubricated, it will glisten
and will not have "gobs" of lubricant on it.
To ensure the longest possible flash unit life, apply
lubricant whenever necessary. Lubrication protects
the O-rings from excessive wear; it also makes it
easier to attach or remove other parts.
5. Visually examine the channels into which the O-rings
fit to determine that each is clean and smooth. If any
channel is dirty, clean it with a non-lint-bearing mate rial. Coat each channel with a thin film of lubricant
while being careful not to apply too much.
6. Reseat all of the O-rings with your fingertips by inserting one side of the ring into the channel and holding it
in pOSition while rolling the other side of the ring into
place (Fig. 3). To insert the O-rings into the channels
of the synchro socket and sensor socket covers ,
push up on the center of the cover with a fingertip
(or pointed object), place the ring over the channel ,
then press it down into place . Check that the O-ring
is not twisted and that each of its edges is properly
seated (see Fig. 4).
7. Check the surfaces which are opposite the O-rings
to determine that each is clean, smooth , and free of
foreign matter. Clean and lubricate the surfaces in
the same manner as the channels.
8. When reattaching the parts with O-rings, be sure that
each O-ring seats properly and securely. All of the
O-rings must be properly aligned and not "pinched."
Fig . 4
5
PREPARATION-continued_ _ _ _ _ __
The preceding instructions must be performed on each
user-serviceable O-ring prior to each dive day and, if
possible, prior to each dive . By following these pro cedures and all other procedures in this instruction
manual , you will be able to enjoy using your Nikonos
8peedlight 8B-102 for many years.
Reminder: An extra set of O-rings and a tube of lubricant are supplied with the flash unit. Additional O-rings
and lubricant are available from authorized Nikon
dealers and service centers.
The O-rings and their sealing method
The method used by the O-rings to seal and waterproof
the flash unit is shown in the following illustrations.
When a low level of pressure exists (for instance , just
under the water 's surface), each O-ring seals its groove
by its own elastic force (see Chart A). When the pres sure increases (at greater depths), the O-ring 's shape
is altered and its sealing ability is increased to withstand
the greater pressure . The pressure changes the ring
from its original " 0 " shape (when looking at a cross sectional view) to a '.' D" shape (see Chart B).
i
Chart A
Pressure
)y-
Chart B
• Slight compression
O-rings
6
TIPS ON SPEEDLIGHT CARE
1. After using the speedlight and camera underwater, rinse them both as soon as possible in
fresh running water with the sync and sensor
cords attached. When the speedlightlcamera
assembly gets dirty, rinse it thoroughly in fresh
water. Immediately after using it in salt water,
rinse it thoroughly in fresh water to remove any
residue. Otherwise, corrosion may occur in
minute places like small holes or the junctions
of parts. To prevent this, soak the speedlightl
camera assembly overnight in a basin of fresh
water, then rinse it vigorously in running water
while paying special attention to the joint @, arm
@, bracketscrew @,buckles ®, andsimilarparts
where it is very difficult to remove mud or salt.
Finally, dry the speedlight/camera assembly with
a soft cloth-never by heating-before removing
the sync and sensor cords. Be sure to wipe away
any drops of water that may have speeded in
past the O·ring.
When the unit is completely dry, check the
a-rings. If any of them is scratched or damaged,
immediately replace it with a new one by following the procedures in " PREPARATION ."
All moving parts should be lubricated to prevent
corrosion and facilitate attachment. Apply lubricant sparingly and be sure to wipe off any excess.
When the speedlight will not be used for some
time , store it in a cool , dry, clean place with the
batteries and battery chamber cap removed .
2. Never submerge the speedlight in water with
the sync or sensor socket cover removed , or
get the sync or sensor cord plugs wet. Always
make sure the sync cord and sensor cord plugs
are securely attached before entering the water.
3. Never pick up or suspend the speedlight by the
sync or sensor cords.
4. If an O-ring with dust, scratches, or damage is
used, water may enter the flash unit and damage
the electrical circuitry. Before and after diving,
check the O-rings by following the procedures
in "PREPARATION ."
5. Do not allow the speedl ight to be exposed to
direct sunlight for long periods. And never place
the speedlight in an area where the temperature
is or may rise to 60°C (140° F) such as in a
closed car or car trunk during w'arm weather.
6. High-voltage circuitry may cause electrical
shock if water enters the flash unit. Should water
get inside the flash unit, take it-with the bat,
teries and battery chamber cap removed-to
an authorized Nikon dealer or service center
immediately.
If you experience difficulty of an electrical nature
with the unit, never attempt to disassemble or
service it yourself. Instead, take the unit to an
authorized Nikon dealer or service center.
7. As much as possible, avoid removing the battery
chamber cap near salty wind or splash ing water
because either may damage the unit's electrical
circuitry. If the battery chamber cap must be
removed in one of these situations, for instance,
to exchange batteries, use a vinyl bag to prevent
water or salt from entering the unit.
8. When not using the speedlight , remove batteries
to prevent damage from battery leakage. Leaking
batteries may also cause dangerous combustible
gases to be trapped inside the battery chamber.
If the battery chamber becomes corroded by
leakage, take the unit to an authorized Nikon
dealer or service center.
9. To remove dirt or fingerprints , wipe with a soft,
dry or silicon,treated cloth. Never use thinner,
benzine, or alcohol because they may damage
plastic parts. To clean the Wide-Flash Adapter
SW-102, wash it with soap and water. Never
use a brush .
10. If this speedlight is frequently used underwater
(especially in salt water or dirty water), take it to
an authorized Nikon dealer or service center for
inspection on a regular basis.
11 . If the speedlight is dropped or bumped against
a hard surface, take it to an authorized Nikon
dealer or service center for inspection even if
there is no surface damage.
12. After using the speedlight , attach the dust-proof
plastic caps to the sync and sensor cord plugs
to protect them from damage.
I
."
............
. .
I
7
BASIC OPERATI,;:::
O..:....:
N~
S =======~===~=----==-=
1. Unlock the buckle
lock/release latches
@ and unlock the
buckles ®> .
Pu ll up the buckle lock/release latch
and push the buckles outward and
downward.
2
Remove the battery
• chamber cap @ .
Push down on the buckles until the
battery chamber cap is separated
from the speed/ight case.
Unlock the silver buckle catches
from the pins on the speedlight
case and pull up on the battery
chamber cap.
• After using the speedfight underwater, rinse
it thoroughly in running water and wipe off
any droplets with a soft cloth before re moving the battery chamber cap.
Note: The small numbers in circles identify
parts of the speedfight as fisted in the
NOMENCLATURE section.
3
Remove the C-type
• battery cartridge ®
from the battery
chamber.
8
4
Install the batteries.
• Install six 1.5V C-type alkalinemanganese batteries or six 1.2V
NiCd batteries . .
Make sure the positive and negative
(+ and - ) terminals are aligned as
,shown in the diagram on the cartridge. Make sure you always push
the first battery in each slot against
the mobile contact.
To remove
Remove the batteries installed in
the side slots fi rst.
• Do not: Insert batteries improperly; leave
flash unit turned on when not in use. Any of
these may damage the flash unit. Also, do
not leave batteries installed when the flash
unit is not being used; it may cause the
batteries to explode.
. 00 not drop or damage the battery cartridge.
• Use only one brand or type of battery at any
given time. When replacing batteries, replace all six at the same time.
• Warning : Batteries may be hot when you
remove them ; handle carefully.
• Use of manganese batteries is not recommended.
• Check proper battery installation before
shooting. Turn flash unit on and make sure
the S8-102's ready-light fights up within 30
seconds.
• Please see "OPTIMUM BATTERY PERFORMANCE," page 32.
5
Replace the C -type
• battery cartridge in
the battery chamber.
Be sure the speedlight power switch
® is in the " OFF" position , then
align the groove on the battery cartridge with the notch on the inside
of the compartment and slide the
battery cartridge into the chamber.
8
Lock the buckle lockl
• release latches.
Push the buckle lock/release
latches over the edges of the
buckles to lock them .
6. Replace the battery
chamber cap.
While holding the buckles away
from the battery chamber cap,
align the battery chamber cap
index @ with the index on the speedlight case and replace the battery
chamber cap.
Check the O·ring: Before replacing
the battery chamber cap, examine
its O-ring for dust and scratches
and be sure it is properly seated
and lubricated .
9
Loosen the joint
• knob ®.
To loosen the joint knob, turn it
counterclockwise while holding the
joint plate ®.
7,
lock the buckles.
• Push the battery chamber cap
against the speedlight case so it is
fully seated , hook the silver buckle
catches onto the pins on the speedlight case , and pull the buckles inward and upward until they lock
into position.
• When locking the buckles, be sure the silver
buckle catches are hooked onto the pins on
the speed/ight case.
10
Properly position the
• joint plate.
Turn the joint knob so the flat sides
of the joint plate are parallel with
the flat edges of the joint.
9
BASIC OPERATIONS-confinued _ _ __
11
Insert the joint plate
• into the joint collar @ .
While holding the base of the joint
knob against the joint, slide the joint
plate into the joint collar until it is
fully seated.
o
When inserting the joint plate into the joint
collar, be sure the flat edges of the joint plate
remain parallel to the flat edges of the joint.
14
Insert the arm @ into
• the joint.
Insert the arm positioning screw @
into the slot in the joint. The arm
can be inserted from either side of
the joint. The normal position is
shown in the photo.
10
12 • Lock
the joint.
13. Loosen the joint
Align the flash head positioning index @ with the "normal " position mark on the flash head positioning scale , then turn the joint
knob clockwise until the joint is
locked in position.
lever @.
Turn the jOint lever counterclockwise as far as it will go to loosen it.
oSee page 18 for information about removing
the joint.
15 • Position
the arm.
16• After
Lock the arm.
Align the arm positioning
aligning the arm posiscrew with the arm positioning
index @ on the joint by turning the
arm 90°.
tioning screw with the arm positioning index, turn the joint lever clockwise as far as it will go to lock the
arm into position .
oNormally, the joint is locked at the top of the
arm.
o Before diving, be sure the jOint knob and
joint lever are locked tightly.
17
18
Turn the arm knob counterclockwise as far as it will go to loosen it
(the two bracket positioning pins
on the bottom of the grip @ will
be visible).
Slide the open end of the bracket
between the arm knob and the grip,
seat the two bracket positioning
pins in the two indentations on the
bracket , and turn the arm knob
clockwise as far as it will go to lock
the bracket into position.
19
Attach the cord
• fastening hanger ®
to the bracket.
20
As shown in the photo, slide the
cord fastening hanger onto the
bracket.
Turn the camera 's sync socket
cover counterc lockwise with a coin
to remove it.
Loosen the arm
• knob @.
Attach the bracket
• ® to the arm.
Remove the
• camera's flash sync
socket cover.
• The correct arm/bracket position is with the
three washers on the underside of the
bracket, the rubber side of the bracket facing
up, and flat side of the grip perpendicular
to the bracket.
21.
Attach the camera
body to the bracket.
With the camera against the rubber
side of the bracket and the camera 's
tripod socket over the bracket
screw, screw the bracket screw
into the camera 's tripod socket
until the camera and bracket are
securely attached.
Nikonos·Vor Nikonos IV·A
11
BASIC OPERATIONS-confinued_ _ __
22
Connect the sync
• cord @ to the
camera .
Remove the dust-proof plastic cap
from the sync cord 's camera plug
(silver). Insert the camera plug in
the camera's flash socket after
aligning the white index on the flash
sync socket with the red index on
the camera plug . When the camera
plug is inserted, turn its locking ring
clockwise as far as it will go to
secure the plug .
24
Connect the sync
• cord to the 58-102.
Remove the dust-proof plastic cap
from the sync cord's speedlight
plug (black). Insert the speedlight
plug into the synchro socket after
aligning the synchro socket index
CD with the red index on the speedlight plug. When the speedlight plug
is inserted, turn its locking ring
clockwise as far as it will go to
secure the plug .
Check the a·ring : Before connecting the camera plug to the
camera , examine the plug 's O-ring
for dust and scratches and be sure
it is properly seated and lubricated.
23
Remove the synchro
• socket cover ®.
Turn the synchro socket cover
counterclockwise , then pull it up.
o Do
not apply excessive force to the sync
cord's camera plug, and avoid twisting the
cord as much as possible.
Check the a·ring: Before connecting the speed light plug to the
speedlight, examine the plug 's
O-ring for dust and scratches and
be sure it is properly seated and
lubricated.
• To keep the sync cord out of the way while
shooting, attach it to the hook of the cord
fastening hanger.
25
Confirm the position
• of the flash head.
Confirm that the arm positioning
screw is aligned with the arm positioning index, the flash head positioning index is aligned with the
" normal " position mark on the flash
head positioning scale, and the
flash head is facing in the same
direction as the camera 's lens. If
the arm positioning screw is not
properly aligned, loosen the joint
lever to reposition it. If the flash
head positioning index is not pro perly aligned loosen the jOint knob
to reposition it.
oSee page 18 for information about positioning the flash head for close-up shooting
within approximately 1m (3.3 fO.
12
26. Set the ASA/ISO film
speed.
Turn the exposure calculation dial
@ until the correct shooting situation mark i@i is opposite the ASAIISO
speed of the film in the camera.
Choose which mark to use according to the shooting situation:
a. . On-land photography
~ : On-land photography with the wide-flash
adapter
. . : Underwater photography
W : Underwater photography with the wide . . flash adapter
In the photograph, the shooting
situation mark ( . . : underwater
photography) index is aligned with
ASAIISO 100.
• For TTL operation with the Nikonos-V
camera, the useable film speed range is
from ASAIISO 25 to 400.
• The ASAIISO film speed settings are only for
determining shooting distances and useable
apertures; the exposure calculation dial is
not electrically connected to the flash unit.
. 'ntermediate ASAIISO film speed settings
are indicated with dots:
ASAIISO film speed scale
25
50
• • • • •
32 40
64
•
80
100
•
200
400
• • • • • • • •
125 I
250 j
500 j
160
320
·Step 28 is divided into two sections according to the camera and the shooting mode
in use.
The "A" steps are for TTL automatic operation with the Nikonos-Vcamera; the "8" steps
are for non- TTL automatic operation with the
Nikonos -V, Nikonos /V-A, or III (the optional
Sensor Unit SU-101 is required for non-TTL
automatic operation).
For information about manual flash operation,
see pages 25 to 26.
800
640
•
1600
• • •
1000 j
1250
28A. TTL Aut<?matic
Operation.
A·1. Set the shooting mode
selector switch ® to "TTL."
27
Set the shutter
• speed on the
camera.
When using the Nikonos-V, set the
shutter 'speed/mode selector dial
to " A" or any shutter speed setting
from 1/1000 to 1/30sec.; when
using the Nikonos IV-A, set the
shutte r speed dial to "A"; in the
case of the Nikonos III , set the
shutter speed dial to 1/60sec.
When using either the Nikonos-V or
Nikonos IV-A, the proper synchronization speed (1/90sec.) will be automatical ly set when the S8 -102 's
power switch is turned on .
A·2. Select an f/stop with the
exposure calculation dial.
Select an aperture from the range
of apertures that can be used at the
existi ng flash-to-subject distance .
tance .
For example , when the shooting
situation mark ( . . : underwater
photography) is set at ASAIISO 100
and the flash-to-su bject distance is
1 m (3 .3ft ), the useable apertu re
range is from fl2 .8 to f/16 .
13
BASIC OPERATIONS-confinued_ _ __
A·3. Set the f/stop on the lens.
When you have determined wh ich
flstop to use, set this fl stop on the
lens. In the photograph , f/8 is set.
B·2. Remove the sensor socket
cover@ .
Turn the sensor socket cover
counterclockwise , then pull it up.
14
288. Non-TTL. Automatic
Operation.
B·1. Attach the Sensor Unit
SU·101 to the camera's acces·
sory shoe.
Turn the sensor unit 's locking wheel
counterclockwise as far as it will
go, slip the unit's mounting foot into
the camera 's accessory shoe, and
turn the locking wheel clockwise to
tighten it.
B·3. Connect the sensor cord to
theSB·102.
Remove the dust-proof plastic cap
from the sensor cord 's speedlight
plug (black). Insert the speedlight
plug into the sensor socket after
aligning the sensor socket index ®
with the red index on the speed light
plug. When the speedlight plug is
inserted, turn its locking ring clockwise as far as it will go to secure
the plug.
Check the O·ring: Before connecting the speedlight plug to the
speedlight , examine the plug 's
O-ring for dust and scratches and
be sure it is properly seated and
lubricated.
• When a plastic frame finder or optical viewfinde r is mounted on the camera 's accessory
shoe, use the optional sensor holder to
attach the SU-101 to the speedlight bracket.
B·4. Set the shooting mode
selector switch to "AUTO."
B·5. Select an f/stop with the
exposure calculation dial.
Select an aperture by using the
non·TTL auto shooting aperture
scale @ and non·TTL auto shooting
aperture index @.
For example, when the shooting
situation mark ( ell : underwater
photography) is set to A8AIISO 100,
the non-TTL auto shooting aperture
index is opposite the fIB on the
green scale and the fl4 on the pink
one . These then are the useable
f/stops . At fIB , the useable flashto-subject distance range is from
0.6m (2ft) to 2m (6 .6ft). At f/4, the
useable flash -to-subject distance
B·7. Set the f/stop on the lens.
In the photograph , fIB is set.
range is from 0.6 m (2 ft) to 4 m (13 ft).
o The
closest shooting distance for non· TTL
automatic operation is O.6m (2ft) regardless
of the fifm speed and whether or not the
wide -flash adapter is being used.
29
Turn on the flash unit.
• Turn power switch to "ON ."
oAs soon as you turn on the S8·102 when
using the Nikonos -V, the shutter speed LED
indicator inside the viewfinder will blink if
the shutter speed/mode selector dial is set
at "A," or at any shutter speed from 1/1000
to 1/30sec. As soon as you turn on the
S8·102 when using the Nikonos IV-A, the
viewfinder LED turns off.
o For normal shooting, the T·S switch should
be in the " OFF " position. For information
about the T-S switCh, see pages 29 to 30.
B·6. Set the selector dial on
the Sensor Unit SU·101.
Set the index on the selector dial to
either the pink circle O or the green
square D to correspond to the color
of the aperture selected in Step
B·5. For example, if you selected
f/4 in Step B·5, set the index to the
pink circle. If you chose fIB, set the
index to the green square.
30
Wait for the ready• light ® to light.
As soon as the flash ready-light
lights, the 8 8 -102 is ready to fire .
Except for the Nikonos III , if the
camera you are using has a viewfinder ready-light , it will light when
the S8-102 is completely recycled .
Note that with the Nikonos-V and
Nikonos IV-A, the exposure meter
must be turned on to activate the
viewfinder ready-light.
15
BASIC OPERATIONS-confinued_ _ __
• With a set of fully recharged NiCd batteries,
the ready-light will light in approximately 5
seconds; with a fresh set of alkaline·
manganese batteries, it wiff light in approxi·
mately 14 seconds.
. If either the S8-102's or the camera's ready·
light does not light, check that: the batteries
are properly installed, the camera, sensor
unit, and ffash unit are securely connected,
and the shutter speed/shooting mode and
ASAIISO film speed setting on the camera
are correctfy set.
· See pages 27 to 28 for information about
ready-light exposure warning information.
32 •
Turn off the flash unit.
To con serve battery power
between shooting sessions, turn
the power switch on the speedlight
to "OFF."
• Turning the pcwer switch off between sessions will also help prevent battery leakage.
16
31 •
Take the picture .
When the shutter is released, the speedlight fire s. After
you take the picture , watch either
the ready-light inside the camera 's
viewfinder or the on e on the 88-102.
Afte r a few seconds , it wi ll light
again to indicate tile flash unit is
fully recycled and ready for the
next shot.
· If the ffash unit fires at its maximum output,
its ready-light will blink for approximately
2 seconds after the shutter is released to
warn that the shot may have been underexposed. In this case, recheck the shooting
distance/aperture combination selected
and use the wide-ffash adapter or move
closer to the subject, if necessary. This
warning is also indicated by the viewfinder
ready-lights of the Nikonos-V and Nikonos
IV-A.
CONTROLS IN DETAIL~~::::;-:;=~k::sens~orun~it
SU-::---101
Nikonos III
attached to the
bracket with the
sensor holder.
@@ Nikonos-V or Nikonos IV-A
----
.,
-
"
Bracket ®
As indicated in the diagram there are two positions for
the bracket screw @ : one for Nikonos-V and Nikonos
IV-A and another for the Nikonos III. To reposition the
bracket screw, unscrew it, then screw it back into the
hole or the threaded end of the bracket slot @ . Once
screwed into the bracket slot, the bracket screw can be
moved to any position.
The larger hole in the center allows the sync cord to be
connected through the bracket to the Nikonos III.
The small hole that goes completely through the bracket
is the sensor holder socket @ . When a plastic frame
finder or optical underwater viewfinder is mounted on
the camera 's accessory shoe, the optional sensor
holder is used to attach the Sensor Unit SU-101 to the
speedlight bracket. To attach , align the sensor holder
positioning pin @ on the top of the bracket with the hole
in the sensor holder ; then screw the knob clockwise
until it is tight.
The small hole on the underside of the bracket is the
tripod socket @l .
• When the bracket and arm are attached to the Nikonos IVA certain
optical finder models for older UW-Nikkor 15mm f12.8 lenses cannot
be attached. If this presents a problem for you, authorized Nikon
dealers and service centers can perform the necessary modification.
Arm @
To attach the arm to the joint © , insert the arm positioning screw @ into the slot in the jOint from either side.
Align the arm positioning screw with the arm positioning
index @ on the joint by turning the arm 90° . After aligning the arm positioning screw with the arm positioning
index, turn the joint lever @ clockwise as far as it will go
to lock the arm into position . When the arm is attached
in this manner, the speed light's axis will always intersect with the lens 's optical axis, even if the flash head is
moved up or down on the arm . (Normally, the joint is
locked at the top of the arm.) Before diving , be sure the
jOint knob @ and jOint lever are locked tightly.
To attach the arm to the bracket , turn the arm knob @
counterclockwise as far as it will go to loosen it (the two
bracket pOSitioning pins on the bottom of the grip @ will
be visible). Slide the open end of the bracket between
the arm knob and the grip, seat the two bracket posi-
tioning pins in the two indentations on the bracket, and
turn the arm knob clockwise as far as it will go to lock
the bracket into position. The correct arm/bracket position is with the two washers on the underside of the
bracket , the rubber side of the bracket facing up, and
the flat side of the grip perpendicular to the bracket.
17
CONTROLS IN DETAIL-continued _ _ __
Joint @
The joint connects the arm to the speedlight and allows
the flash head to be positioned as required for various
shooting situations.
The arm can be inserted from either side of the joint,
the normal position is shown in the photo. When using
two SB-102 Speedlights and the optional Double Flash
Bracket, insert the arm that is next to the camera's film
advance lever into the joint from the direction opposite
that shown in the photo. (Flash head positioning scales
are provided on both sides of the joint.)
The joint lever allows the flash head to be turned on the
arm 's axis and moved up or down the arm as required .
The joint knob is used to adjust the angle of the flash
head (the angle of intersection between the speedlight's
axis and the lens 's optical axis): The normal angle of the
flash head is with the flash head positioning index @ at
the "normal" positioning mark @ ontheflash head posi-
Close-Up Shooting in the Non-TTL
Automatic Mode
When using the SB-102 in the non-TTL automatic mode
for close-up shooting within approximately 1m (3.3ft) to
0.3m (1 ft), the flash head should be pointed directly at
the subject. Exposure compensation will be necessary,
though , to prevent the subject from being overexposed .
As a rule of thumb, choose an aperture 1/2 to 1 step
smaller (numerically larger f-numbers) than indicated
by the exposure calculation dial. Of course, the exact
amount of exposure compensation depends upon the
shooting situation, so additional compensation may be
required.
To determine the exact amount of exposure compensation required before going to the actual shooting location, test-shoot in a location with conditions similar to
those of the actual situation (similar water quality, surroundings, subjects, and so on). If the conditions
change, the amount of the exposure compensation will
need to be changed correspondingly. Naturally, data
calculated on land will not be applicable to underwater
photog raphy.
18
To detach
tioning scale. The "normal " position is used for shooting
between 1m (3.3ft) and infinity. For close-up shooting
within approximately 1m (3 .3ft), loosen the joint knob,
point the flash head toward the subject , then tighten the
joint knob. In addition to the "normal" position mark on
the flash head positioning scale , "0.6m (2ft) " and " 0.3m
(1ft)" position marks ® ® are provided for use when
shooting subjects at these distances. However, when
the flash head is not in the "normal " position , the joint
must be attached to the top of the arm.
For information about using the target-light to position
the flash head, see page 29.
To detach the jOint from the speedlight , turn the joint
knob counterclockwise and slide the jOint plate out of
the joint collar while pulling the joint knob.
Synchro Socket ®
To connect the sync cord @) to the speedlight, remove
the synchro socket cover ® by turning it counterclockwise and pulling it up. Remove the dust-proof plastic
cap from the sync cord 's speedlight plug @ (black).
Insert the speedlight plug into the synchro socket after
aligning the synchro socket index CD with the red index
on the speedlight plug . When the speedlight plug is
inserted, turn its locking ring clockwise as far as it will
go to secure the plug .
Never submerge the speedlight in water with the
synchro socket cover removed or get the sync cord
plugs wet. Always make sure either the synchro socket
cover or the sync cord plugs are securely attached
before entering the water.
After shooting underwater, wipe off any water droplets
with a soft cloth before removing the plug to prevent
water from entering the socket. Whenever the sync
cord is not being used or the speedlight is bei ng washed
with the sync cord removed from the synchro socket,
attach the synchro socket cover to protect the socket.
To attach the socket cover press it against the socket to
seat the O-ring , then turn the locking ring clockwise as
far as it will go.
• To simplify identification, both the tip of the sync cord's speedlight plug
and the inside of the synchro socket are color· coded yellow.
Sensor Socket (])
To connect the sensor cord to the speedlight for nonTTL automatic flash control , remove the sensor socket
cover @ by turning it counterclockwise and pulling it up.
Remove the dust-proof plastic cap from the sensor
cord 's speedlight plug (black). Insert the speedlight
plug into the sensor socket after aligning the sensor
socket index @ with the red index on the speedlight
plug. When the speedlight plug is inserted, turn its locking ring clockwise as far as it will go to secure the plug.
Never submerge the speedlight in water with the
sensor socket cover removed or get the sensor cord
plugs wet. Always make sure either the sensor socket
cover or the sensor cord plugs are securely attached
before entering the water.
After shooting underwater, wipe off any water droplets
with a soft cloth before removing the plug to prevent
water from entering the socket. Whenever the sensor
cord is not being used or the speedlight is being washed
with the sensor cord removed from the sensor socket ,
attach the sensor socket cover to protect the socket.
To attach the socket cover, press it against the socket to
seat the O-ring, then turn the locking ring clockwise as
far as it will go.
• To simplifty identification, both the tip of the sensor cord 's speedlight
plug and the inside of the sensor socket are color-coded black.
19
CONTROLS IN DETAIL-continued _ _ __
Sensor Unit SU-101 (Optional)
In combination with the optional Sensor Unit SU-101,
the S8-102 provides non-TTL automatic flash exposure
control. With the S8-102 's shooting mode selector
switch ® at "AUTO," the Sensor Unit SU-101 reads the
light reflected back from the subject while the speedlight is firing and tells the speedlight to turn itself off
when the light output is sufficient for correct exposure.
The selector dial on the back of the SU-101 allows one
of two aperture settings to be selected.
Normally, the SU-101 is attached to the camera's
accessory shoe. However, when a plastic frame finder
or optical underwater viewfinder is mounted on the
camera's accessory shoe, the optional sensor holder is
used to attach the Sensor Unit SU-101 to the speedlight
bracket.
Mounting the SU·101 on the camera : Turn the sensor
unit's locking wheel counterclockwise as far as it will
go, slip the unit 's mounting foot into the camera's
accessory shoe, and turn the locking wheel clockwise
to tighten it.
Mounting the SU·101 on the bracket: Insert the
sensor holder positioning pin @ on the bracket into the
sensor holder, then screw the sensor holder's screw
into the sensor holder socket @ on the bracket. To
attach the SU -101 to the sensor holder, follow the same
procedures as when attaching the SU-101 to the
camera 's accessory shoe .
Operating the SU·101: The two-position selector dial
on the back of the sensor unit must be set according to
the instructions in Step B·6 (page 15). To obtain the
correct exposure , position the sensor as close to the
lens as possible .
• For more information about non-TTL automatic operation, see page 24.
Synchronization Speed
The shutter speed at which the S8-102 synchronizes with
a camera depends upon the camera being used. The
table shows the flash sync speeds of various cameras.
80th the Nikonos -V and Nikonos IV-A cameras automatically switch to the proper synchronization speed
when the S8 -102 's power switch is turned on ; when the
switch is turned off, the automatic switchover function is
canceled . For convenience , the S8-102 provides information and warnings through these cameras ' viewfinder
ready-lights .
• Aperture-priority automatic exposure mode ( HA H) operation on the
Nikonos ·Vand Nikonos /V·A is canceled when the 5B·102 is turned on.
To determine the correct aperture, use the 5B-102 's exposure calculation dial (see page 22).
Camera
Nikonos·V·
.
I
Sync Speed
1/90 sec . or slower
Nikonos IV·N
1/90 sec . or slower
Nikonos III
1/60 sec . or slower
I
Camera Setting
I Operable Shutter Speed
A
1/90 sec .
1/1000 to 1/125 sec .
1/90 sec.
1/60 to 1/30 sec.
as set
I
Viewfinder Information
Correct shutter speed blinks··
Remarks
ITLoperable
-
M90 or B
as set
A
1/90 sec.
M (1/90 sec .) or B
as set
-
as set
-
-
I
LED does not light
TTL inoperable
When battenes In the Nlkonos·V or Nlkonos IV·A are exhausted, reset the Nlkonos-V's shutter speed/mode selector dial to M90 (1 /90 sec.) or B
(Bulb), or the Nikonos IV-A's shutter speed dial to M (1190 sec.) or B (Bulb). TTL automatic flash control is not possible when the Nikonos·V is
in the M90 or B modes .
•• This indicates the correct shutter speed as determined by the subject's brightness and the aperture setting. Although this is not a speedlight
function, it is helpful when using daylight fill-in flash shooting.
20
Shooting Mode Selector ®
The shooting mode selector 5 has five click-stop settings . The shooting modes that can be used with specific
cameras are listed on page 28.
"TTL" position-TTL (through-the-lens) Automatic
Flash Mode
This mode, which can be used only in conjunction with
th e Nikonos -V camera, automatically controls the flash
exposure Through-The-Lens (TTL). In this mode, the
Nikonos -V's 8PD (silicon photodiode) reads the light
passing through the lens and automatically signals the
88 -102 to turn itself off when the exposure is correct.
Because the range of useable ape rtures is larger (trom
f/2 .8 to f/22 when using ASAIISO 100 film) than with
non-TTL flash, you can shoot at a variety of flash-to subject distances. The farther the subject, the more
light emitted by the flash unit; the closer the subject,
the less light given off. In addition , the TTL mode makes
daylight fill -in fla sh and close-up photography easier
than ever.
- The useable film speed range for TTL operation is from ASA/ISO 25 to
400. For information about the apertures that can be used at va rious
film speeds, see page 23.
- TTL operation is not possible with the Nikonos IV-A or III or when the
Nikonos -V's shutter speed/mode selector dial is set at M90 (lI90sec.J
or B(Bulb).
- Even if the Nikonos-V's shutter speed/mode selector dial is set from
1/30 to 1/I000sec., TTL operation is not possible when : the sync cord
is not securely connected, the ASA/ISO film speed is set beyond
ASA/180 400, or the batteries are completely exhausted.
"AUTO" -Non-TTL Automatic Flash Mode
When the optional Sensor Unit SU-101 is used , this
mode provides non-TTL automatic fl ash operation. In
this mode, the sensor unit reads th e light refl ected back
from the subject while the speedlight is firing and tells
the speedlight to turn itself off when the light output is
sufficient for correct exposure. The se lector dial on the
back of the SU -101 allows one of two aperture settings
to be selected according to the flash -to -subject distance
and the shooting situation .
- In both the TTL and non-TTL automatic flash modes, the 8B-l02 emits
amounts of light sufficient for subjects having average reflectivity.
Therefore, correct exposure may not be obtainable if the subject's
reflectivity is extremely low or high.
"MFULL", " M1/4" and " M1/16"-Manual Flash
Modes
Manual control is very conven ient when the correct
exposure cannot be obtained through non-TTL auto matic operation . The S8 -102 has three manual control
modes for selection according to the fl ash-to -subject
distance and the shooting situation . The guide numbers
are GN 32 (16) at the " MFULL" position, GN 16 (8) at
" M1/4," and GN 8 (4) at " M1/16 " (when using ASA/ ISO
100 film . The guide numbers in parentheses are for
underwater photography). To determine the correct
aperture, use the exposure calculation dial or perform
the calcu lations yourself (see pages 25 to 26).
21
CONTROLS IN DETAIL-continued _ _ __
Exposure Calculation Dial ®
In flash photography, which apertures can be used is
closely related to the flash-to-subject distance. To determine the useable apertures , align the shooting situation
mark on the exposure calculation dial with the ASAIISO
film speed in use, find the flash-to-subject distance on
the distance scale, then follow the corresponding distance line up to the aperture scale .
The dots on the ASAIISO fi lm speed scale indicate the
following intermediate settings:
Removing the Exposure Calculation Dial :
Remove the exposure calculation dial screw @ by turning it counterclockwise with a coin, then pu ll up on the
dial.
To re-attach the dial, correctly align its center notches
with the mounting notches on the back of the flash
head and push down on the dial. Insert the exposure
calculation dial screw and turn it clockwise as far as it
will go.
ASA/ ISO film speed scale
25
50
100
200
.) 00
800
1600
• • • • • • • • • • • • • • • • • • •
64 80
32 40
500 j
1000 j
125 +
250 +
160
320
640
1250
• The exposure calculation dial can be removed to clean sand or other
foreign matter from behind it.
TTL Automatic Flash Control
In TTL automatic flash photography, the useable apertures are from f/2 .8 to f/22 (when using ASAIISO 100
film), although the actual range for a specific shooting
situation depends upon the flash-to-subject distance .
The actual ranges for specific situations can be easily
determined with the exposure calculation dial.
22
Example 1:
When the shooting situation mark . . is opposite the
100 on the ASA/ISO film speed scale and you want to
shoot at f/5 .6, you can take pictures of subjects located
between 1m (3.3 tt) and 5.6 m (18.4 ft).
When the shooting situation mark ~ is opposite the
400 on the ASAIISO film speed scale and you want to
use f/5.6 , you can shoot subjects located between O.7m
(2 3tt) and 4m (13.1 tt).
Before you select an aperture to use, always take the
flash -to-subject distance into consideration. To increase
the flash-to-subject coupling distance as much as pos sible, select a larger flstop (a numerically smaller
f-number). In the opposite case , close-up shooting,
select a smaller f/stop (a numerically larger f-number).
Example 2:
When shooting a subject underwater at 4m (1 3ft) with
the wide-flash adapter while using ASAIISO 100 film ,
you must use f/2 .B.
When several f/stops are useable at a specific flash to-subject distance , make your selection by taking the
desired depth of field and speed light recycling time into
consideration.
Example 3:
When shooting a subject on land at 2m (6.6ft) without
the wide -flash adapter while using ASAIISO 100 film
and you want the largest depth of field possible, select
f/1 6. If you want to minimize recycling time as much as
possible, select f/2 .S.
In the TTL automatic mode, the S8-102's useable
ASAIISO film speed range is from ASAIISO 25 to 400,
its useable aperture range is from f/2 .B to f/22 , and its
flash-to- subject coupling distance range is from O.3m
(1 ft) to 22 m (72.2ft). However, the relationship between
the useable aperture range and the flash-to-subject
coupling distance range varies according to the
ASAIISO speed of the film in use, the type of photography (on land or underwater), and whether or not the
wide-flash adapter is being used .
TTL Auto Shooting Range
Unit: m (ftl
* These figures should only be used as a guide because flash·to -subject coupling distance ranges are affected by the existing conditions
(water quality, surroundings, subjects, and so on). For best results, test-fire the flash before actually shooting.
23
CONTROLS IN DETAIL-continued _ _ __
Non-TTL Automatic Flash Control
When using the optional Sensor Unit SU-101 , you can
select one of two useable apertures.
The useable apertures vary according to the ASAIISO
speed of the film in use, but they can be easily determined with the exposure calculation dial.
When the correct shooting situation mark is aligned
with the correct speed on the ASAIISO film speed scale,
the non -TTL auto shooting aperture index @ above the
shooting situation mark indicates the useable apertures
(color-coded green and pink) on the non-TTL auto
shooting aperture scale.
To obtain the correct exposure, choose one of the two
useable f/stops and set the index on the sensor unit's
selector dial to either the pink circle or the green square
to correspond to the color of the aperture selected.
Before doing this remember to take the flash-to -subject
distance into consideration .
Example:
When shooting underwater. . while using ASA/ISO 100
fi lm, the useable f/stops indicated on the non-TTL auto
shooting aperture scale are fl4 and f/S. Using the aperture scale , distance lines, and distance scale , the
flash-to-subject coupling distance ranges are determined to be from 0.6 m (2 ft) to 4 m (13.1 ft) for f/4 and
from 0.6m (2ft) to 2m (6.6ft) for f/S. Therefore, when
the subject is beyond 2 m (6.6ft), you must select f/4.
When the subject is within 2m (6.6ft), you can choose
either fl4 and f/S. If larger depth of field is desired , use
f/S ; if shorter recycling time is preferable , select f/4 .
Remember to set the sensor unit 's selector dial to the
same color-coded position as the aperture on the
exposure calculation dial you have selected.
Non·TTL Auto Shooting Range
Shooting
Situation Mark
•
•
D (green square)
0.6 to 2.8 (2 to 8.9)
O (pink circle)
0.6 to 4 (2 to 13)
D(green square)
0.6 to 2 (2 to 6.6)
W
O (pink circle)
0.6 to 2.8 (2 to 8.9)
D green square)
0.6 to 1.4 (2 to 4.3)
W
ell
ell
• When the shooting situation mark index is aligned with an intermediate
setting on the ASAIISO film speed scale (for example, ASAI ISO 64),
the non· TTL auto shooting aperture index indicates two useable inter·
mediate apertures on the non· TTL auto shooting aperture scale. In this
situation, set one of the two intermediate apertures on the lens .
• In non-TTL automatic operation, the minimum flash-to-subject coupling
distance is always a.6m (2ft). The maximum flash-to-subject coupling
distance is determined by your choice of shooting situation marks
regardless of the ASAIISO speed of the film in use. The coupling ranges
that correspond to the four shooting situation marks are shown in the
chart.
24
Unit: m (tt)
I SU·101
's Selector I
.
.
Dial Setting
Coupling Distance
O (pink circle)
0.6 to 8 (2 to 26)
D(green square)
0.6 to 4 (2 to 13)
O (pink circle)
0.6 to 5.6 (2 to 18)
Manual Flash Control
Manual flash operation allows you to control the light
output of the SB-102 by setting the shooting mode
selector to one of three positions : "MFULL," "M1/4,"
or "M1/16."
To determine which setting to use, begin by aligning the
correct shooting situation mark with the correct speed
on the ASAIISO film speed scale. Next, Ipcate the
flash-to-subject distance on the distance scale and
follow the corresponding distance line up as it crosses
the aperture scale. At each intersection between the
distance line and an f/stop line on the aperture scale ,
one of four conditions will be present: 1) the distance
line will intersect the extreme right-hand edge of the
f/stop line (the "MFULL" mark), 2) the distance line will
intersect a semicircle (the "M1/4" mark), 3) the distance line will intersect a triangle (the "M1/16" mark),
Example 1:
When shooting a subject underwater at 1m (3.3 ft) without using the wide-flash adapter while using ASAIISO
100 film, you can select one of three aperture/mode
settings: f/16 at "MFULL," flS at "M1/4," or f/4 at
"M1/16."
If the shooting distance changes to 5 m (16.4 ft) but you
still want to use "MFULL," you should use an intermediate aperture setting between f/2.S and f/4.
To determine the correct f/stop without using the exposure calculation dial, divide the GN (trom the chart on
page 26) by the flash-to-subject distance (in meters).
or 4) the distance line will intersect an unmarked portion
of the f/stop line. The first three conditions indicate the
manual flash mode that can be used at those particular
f/stops.
Before shooting, set the shooting mode selector to
correct position and set the correct aperture on the lens.
Example 2:
When shooting a subject underwater at 4 m (13.1 ft)
without using the wide-flash adapter while using
ASAIISO 100 film and "MFULL," divide the GN (16) by
the shooting distance [4m (13ft)] to get the correct
aperture (t!4) .
25
CONTROLS IN DETAIL-continued _ _ __
Example 3:
Shooting a subject on land at 8m (26.2ft) without using
the wide-flash adapter while using ASAIISO 100 film
and "MFULL": The GN for " MFULL" at ASAIISO 100
on land is 32 (from the chart below). Divide the GN of
32 by the flash-to-subject distance of 8m to get the
correct aperture, f/4. Because water absorbs a great
deal of light, however, you cannot use the same GN
underwater as on land or your shot will be underexposed.
Instead, multiply the on-land GN by 1/2 to 1/3 for underwater photography. (The underwater GNs shown in the
following chart are 1/2 of the corresponding on-land
GNs.)
Guide Numbers in the Manual Mode
Exposure Compensation
When the Nikonos-V is used with the SB-102 in the TTL
or non-TTL flash mode, exposure compensation is required for over- or underexposing the picture to match
subject or shooting conditions. Each procedure is different , so read the following instructions carefully before shooting.
In addition , if you photograph a subject with very high
reflectivity, such as a mirror or metallic surface , underexposure is almost certain to occur. To prevent this, use
manual flash control.
• The values in parentheses are when the Wide-Flash Adaptor
SW-102 is being used.
• The full amount of light is emitted when the shooting mode selector
is at "MFULL " and, even if not liynchronized, at "AUTO."
TTL Exposure Compensation
When using TTL automatic flash control with the
Nikonos-V camera, you can use its ASAIISO film speed
dial to make an exposure compensation for the shooting
situation or to create intentionally over- or underexposed
photos.
The relationship between the exposure compensation
value and ASAIISO film speed dial setting is shown in
the following chart:
For example , to make a + 2 exposure compensation
when using ASAIISO 100 film , reset the ASAIISO film
speed scale to ASAIISO 25, then read the modified
shooting distance from the dial.
The useable aperture range for TTL automatic flash
photography changes according to the exposure compensation value being used. Before using the exposure
calculation dial to determine the useable aperture
range, align the correct shooting situation mark with
new (compensation) setting on the ASAIISO film speed
scale.
26
· Positive (+) exposure compensation cannot be made at some film
speeds, and negative (-) exposure compensation cannot be made at
other film speeds. In these cases, make the necessary compensation
in the non-TTL automatic mode (see page 24) or use one of the manual
I/ashmodes.
• When you finish making the exposure compensation, be sure to reset
the ASAIISO film speed dial on the Nikonos-V and the ASAIISO film
speed scale on the speedlight.
Non·TTL Automatic Flash Exposure Compensation
When shooting in the non-TTL automatic flash exposure
mode, exposure compensation can be made by stopping down or opening up the lens. To compensate for
a dark subject , use a 1/2- to 2-step smaller aperture
(a numerically larger f-number). To compensate for a
light subject, use a 1/2- to 2-step larger aperture (a
numerically smaller f-number).
• The ready-light will light up when the S8-102 has recycled to 80 % of
its full capacity. Therefore, if you want to shoot a subject at either the
minimum or maximum camera-to -subject coupling distance in the
non- TTL automatic mode or one of the manual modes, it is best to wait
until a few seconds after the ready-light has lighted.
o As the voltage of the batteries decreases with use, the GN of the flash
unit decreases slightly.
o The voltage of NiCd batteries decreases rapidly when their power is
almost exhausted, increasing the recycling time. When this occurs,
stop using them immediately and recharge them or they may be
damaged.
o When using alkaline-manganese batteries, if recycling takes 30
seconds or longer, replace the batteries with a fresh set.
o The ready-light goes out when the flash unit is turned off.
o When the exposure meters of the Nikonos-Vand Nikonos IV-A are not
activated, the cameras ' viewfinder ready-lights will not light even if the
speedlight is turned on (except when the shutter speed/mode selector
dial or shutter speed dial is set at M90 or M). Always confirm that the
viewfinder ready-light is lighted before shooting.
o When the shutter speed/mode selector dial or shutter speed dial of the
Nikonos-Vor Nikonos IV-A is set at M90 or M, the viewfinder ready-light
lights when the flash unit's ready-light lights.
Ready-Light ®
After its power switch is turned on, the ready-light on
the 8B-102 will light to indicate that the 8B-102 has re cycled and is ready to fire. If you are using either a
Nikonos-V or Nikonos IV-A camera , its viewfinder readylight will also light at the same time to let you know the
flash unit is ready for the next shot.
In addition, the viewfinder ready-lights of the Nikonos-V
and Nikonos IV-A blink to warn of improper settings. If
this happens, check that the camera and flash unit are
securely connected , and the shutter speed/shooting
mode and A8A/180 film speed on the camera are
correctly set.
Warning Function: Beyond Auto Shooting
Range
In the TTL and non -TTL automatic modes, the readylights on the flash unit and in the camera 's viewfinder
blink for approximately 2 seconds if the flash un it has
fired at its maximum output to indicate that the light
output may not have been sufficient for correct exposure. If this happens, recheck the flash-to -subject distance . If it is beyond the coupling distance range, use
a larger aperture (a numerically smaller f-number), if
possible , or move closer to the subject.
Because the voltage of batteries (especially alkalinemanganese batteries) decrease rapidly with use, the
GN of the flash unit will decrease slightly. The flash
output of the 8B -102 also varies according to the
amount of ambient light and the subject's reflectivity.
27
CONTROLS IN DETAIL-continued _ _ __
Other Warning Functions:
1. When the shutter speed/mode selector dial of the
Nikonos -V is set to M90 (1/90sec.) 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 ASAIISO film speed setting dial of the
Nikonos-V is set to beyond ASAIISO 400.
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.
Camera and Speedlight Ready·Lights l
Camera
Nikonos·V
Nikonos IV·A
Nikonos III
I
Shutter Speed Setting (sec .)
I
Shooting mode
I 58·102 ready·light
f~
A, 1/1000 to 1/30
TTL
Lights
A, 1/1000 to 1/30
MFULL, M1 /4, M1 /16, AUTO'
Lights
Lights or blinks'
Does not light
Lights
M90 (1/90), B
TTL
Lights
Does not light
M90 (1190), B
MFULL, M1 /4, M1/16, AUTO'
Lights
A
TTL
Lights
Blinks
Does not light
Lights
Does not light
-
A
MFULL, M1/4, M1 /16, AUTO'
Lights
M (1190) , B
TTL
Lights
M (1/90), B
MFULL, M1/4, M1 /16, AUTO'
Lights
11500 to 1/30'
TTL
Lights
-
1/500 to 1/30'
MFULL, M1 /4 , M1 /16, AUTO'
Lights
-
Blinks
Lights
Blinks
Lights
-
1.
2.
3.
4.
When the speedlight has recycled.
When the ASA/ ISO film speed dial is set to beyond ASA/ISO 400.
In the auto mode, the optional Sensor Unit SU-101 is required.
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.
c==J = Proper flash synchronization is not possible because the shutter speed/shooting mode is improperly set.
- When 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 the flash unit lights. If
the ready-light on the flash unit begins blinking after
test-firing , switch to a larger aperture (a numerically
smal ler 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
"pa int" the scene with light. When doing this, disconnect the speedlight 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
28
socket and the flash unit 's sync socket cover before
entering the water.)
- After test firing or open-flash firing, reset the speedlight'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 thespeedlight that is being test-fired will fire .
Cord Fastening Hanger @
Wide-Flash Adapter SW-102 ®
This hanger secures the sync cord to the bracket to
keep it out of the way while shooting .
To use the cord fastening hanger, attach it to the speedlight bracket as shown in the photo, then attach the
sync cord to the hook.
Designed specifically for use with this flash unit, the
Wide -Flash Adapter SW-102 increases the S8 -102's
angle of coverage from that of a 28mm lens (on land
and underwater) to that of a 15mm lens (underwater).
When the adapter is attached, the S8-102 's GN is reduced to 22 on land and 11 underwater (when using
ASA/ISO 100 film at " MFULL").
When the SW-102 is attached, be sure to use the correct shooting
situation marks ( ~ for underwater or ~ for on-land shooting) when
setting the exposure calculation dial.
o To prevent overexposure during close-up shooting within approximately
O.6m (2ft!, attach the adapter even if using a lens other than the
UW-Nikkor 15mm fI2.BN.
o To prevent the loss of the SW-102 and to enable it to be attached
quickly, tie one end of a piece of string to its hole and tie the other end
to the speedlight.
o
Attaching the SW-102
Target-Light Function
To attach the adapter, align the adapter 's mounting
notches with the adapter mounting catches on the flash
head, push the adapter onto the flash head as shown in
the photo, then turn the adapter clockwise as far as it
will go.
To remove: Turn the adapter counterclockwise and pull
it off.
The S8-102's target-light enables the flash head to be
accurately positioned for close-up shooting regardless
of whether or not the speedlight is mounted on the
joint/arm. When the speedlight's power switch is turned
on and the T-S switch ®l is turned to " T.LlGHT" or
" T&S," the target-light will emit a beam of light to
indicate the direction of the flash head. To accurately
position the flash head, reset it by using the jOint and
arm until the beam of light falls on the center of the
subject.
oAlthough you can shoot while the target-light is on, it is better to turn
the T-S switch to "OFF " or "SLAVE" before shooting to conserve
battery power.
o lf the target-light is on when the flash is fired, the target-light will flicker
for a few moments. This does not indicate a malfunction.
o Recycling takes slightly longer when the target-light is being used.
29
CONTROLS IN DETAIL-continued _ _ __
Replacing the Target-light
Multiple Flash Photography
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 approximately 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.
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 connected 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
The target·light can also be replaced by an authorized Nikon dealer or
service center if you desire.
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.
o There
Daylight Fill-In Flash Photography
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 determined with the following equation:
Combined GN
= VGN l' + GN2 2 + GN3 2 + .
Where GN 1. 2. 3
are the guide numbers of the flash units
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.
When shooting in daylight, a backlit subject may come
out almost as a si lhouette if the background is correctly
exposed. If, on the other hand, exposure compensation
is made to correctly expose the s.ubject, the background 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 's 1/125 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.)
o Because
30
Adjust the aperture until one
or two of these LED indicators
begins blinking .
TIPS ON SPEEDLIGHT PHOTOGRAPHY
1. The flash -to-subject coupling distances and useable apertures indicated by the exposure calculation dial are for clear-water shooting . Therefore,
the correct exposure will be different if the water
is muddy or has floating particles, and some exposure compensation must be made.
3. When the bracket and arm are attached to the
Nikonos IV-A, certain optical finder models for
older UW-Nikkor 15mm fl2.B lenses cannot be
attached. If this presents a problem for you ,
authorized Nikon dealers and service centers can
perform the necessary modifications.
2. In shallower depths with natural lighting , overexposure may occur when shooting in the automatic
mode. To prevent this, use the smallest aperture
(the numerically largest f-number) possible or turn
off the speedlight and use only natural lighting.
When shooting with the Nikonos-V, the correct
shutter speed for the lighting conditions is displayed in the viewfinder. (For more information ,
refer to the camera's instruction manual.)
4. One of the benefits of using a speedlight underwater is that it restores natural colors to subjects
by removing the water's bluish cast. Occasionally,
though , you may want to include that bluishness
in your photos. Normally, this is rather difficult to
do because the flash unit renders the background
either too light or too dark. To capture the bluishness, you must eliminate the difference in light
levels between the subject (illuminated by the
speedlight) and the background (illuminated by
natural light}-a difficult task in the manual flash
mode. The easiest way to balance the light levels
is to use the Nikonos-V and the 88-102 in the
TTL automatic mode and follow the procedures
explained in " Daylight Fill-In Flash Photography" (page 30).
31
OPTIMUM BATTERY PERFORMANCE
1. New batteries
Between manufacture and first use, all batteries
exhibit some drain. Therefore , care should be
taken to purchase the newest (and freshest) ones
possible. To help you do this , some manufacturers
stamp the date of manufacture on the bottom of
each battery. Ask your camera dealer for assistance in interpreting the codes.
2. Temperature
Battery life ratings are based on operation at
around 25°C (7YOF). At other temperatures , battery life is shortened . Spare batteries should there fore be kept available if operation in low temperatures is anticipated .
3. Continuous use
Batteries are drained much more quickly by con tinuous use than by intermittent use.
4. Storage
When not in use, the batteries should be removed
to prevent leakage which may damage the unit,
or even cause combustible gases to be trapped
inside the battery chamber. To minimize drain
during the period of disuse, store the batteries in
a cool , dry place below 20°C (68° F).
5. Battery brands
Do not mix brands of batteries or use batteries
with different model numbers. Also, avoid mixing
new and old batteries since proper performance
will not be obtained and battery leakage may
occur.
6. Disposal
Do not dispose of batteries by burning . Al so, for
safety's sake, never disassemble batteries.
32
7. Polarity
When installing batteries, observe the voltage
polarities carefully. Reversal of the positive (+ )
and negative (-) terminals will result in leakage. If
leakage shou ld occur, clean the SB-102 carefully
or take it to an authorized Nikon dealer or service
center.
The SB-102 requires an excessive current , so th e
life span of the batteries may be shorter than
other speedlights.
8. NiCd batteries
In comparison with regula r batterie s, NiCd batteries provide faster recycling and higher efficiency at low temperatures . However, the re cycling time and the number of flashes per battery set depend upon the age of the batteries,
their charges , and their capacities.
o Do
not continue to use NiCd batteries after they are exhausted.
Continued use may reduce their life span or cause leakage.
o Before charging, thoroughly read the battery and battery
charger instructions.
oCharging should only be done for the designated number of
hours on a battery charger recommended by the battery manu·
facturer. Excessive charging may cause battery deterioration.
oCharging should only be done in temperatures between 5°C
(41°F) and 35°C (95°F). Never charge batteries while they are
still hot from use.
o Never attempt to charge NiCd batteries that are incorrectfy
installed in the battery charger.
o The charging capacity of NiCd batteries may be shortened
after a long period of storage. If this occurs, discharge and
recharge them several times.
olf working time is markedly reduced even after they have been
correctly charged, replace them with a fresh set.
o Do not mix new and old NiCd batteries.
o Do not use NiCd batteries which have been charged for different lengths of time.
ACCESSORIES _ _ _ _ _ _ __
Numerous accessories are available to increase the
S8-102's versatility.
Sensor Unit SU·101
This unit is required when using the S8 -102 in the
non-TTL automatic flash mode with the Nikonos-V,
Nikonos IV-A, or Nikonos III.
Double Flash Bracket
This accessory allows two flash units to be mounted
on the camera at one time , thereby doubling the
amount of flash illumination available. This bracket is
especially useful during close-up shooting because it
enables the subject to be evenly illuminated from the
left- and right-hand sides.
Sensor Holder (for SB·102)
When a plastic frame finder or an optical underwater
viewfinder is mounted on the camera 's accessory
shoe, the sensor holder enables the Sensor Unit
SU -101 to be mounted on the bracket.
Extension Arm
This accessory increases the length of the arm when
a special lighting effect is desired or needed .
33
ACCESSORIES-continued _ _ _ _ _ __
Double 5ync Cord
When using the Nikonos-V, th is co rd enables two
S8 -102 Speedlights to be used in the TTL automatic
flash mode .
5peedlight Case 55-101 (Provided)
Three cushioned compartments inside this stylish tote
bag house the came ra and all parts of the Nikonos
Speedlight Unit S8 -102.
• When using two S8-102 Speedlights in the TTL automatic flash
mode, the correct shooting situation mark on the exposure calculation dial must be realigned with a + 1 higher speed on the ASAIISO
film speed scale. For example, when using ASAIISO 100 film, align
the correct shooting situation mark with ASAIISO 200. When you
have finished using the two speedlights, realign the scale and
mark.
· If you decide to use only one speedlight in the TTL automatic flash
mode, rea lign the ASAIISO film speed scale at its original setting and
turn off the speedlight which is attached to the gray sync cord. Should
you turn off the speedlight which is attached to the black cord, TTL
automatic flash control is automatically canceled and the unit will fire
at its maximum output regardless of the setting .
• Non-TTL automatic flash exposure is not possible when using two
speedlights connected by the optional Double Sync Cord.
Protectors
Special protectors are available to prevent damage to
the S8 -102 from inadvertent bumps.
O-rings and lubricant
Additional O-rings and lubricant are available to allow
you to maintain the flash unit in perfect condition .
00
34
SPECIFICATIONS _ __ _ _ _ __
Flash Type:
Useable Exposure
Modes:
Guide Numbers :
Angle of Coverage :
Batteries:
Number of Flashesl
Recycling Time:
Useable Ranges :
Resistant Pressure:
Target·Light :
Slave Flash Function :
Dimensions:
Weight :
High-performance siliconcontrolled rectifier and series
circuitry
TTL auto exposure (with Nikonos-V
camera) ; Non-TTL auto exposure
(with optional Sensor Unit
SU-101); and Manual : "MFULL,"
"M1/4," and "M1/16" settings
With ASAIISO 100 film on land
(underwater), full output : 32 (16);
1/4 output: 16 (8) ; 1/16 output :
8(4)
79° on land ; covers picture angle
of 28mm lens on land and underwater ; with Wide-Flash Adapter
SW-102, picture angle increases
to that of a 15mm lens
Six C-type NiCd batteries or six
C-type alkaline-manganese
batteries (high-performance
manganese batteries not
recommended)
NiCd * : 70 flasheslminimum
approx. 5sec .*' (depending upon
battery brand and amount of
recharging)
Alkaline-manganese : 120 flashesl
minimum approx. 14 sec."
• Data for C-type NiCd batteries
are applicable only when batteries with a 1200mAh capacity
have been recharged by a 120 mA
current for 15 hours at room
temperature.
*. More flashes and shorter
recycling times in the TTL,
non-TTL, "M1/4, " and "M1/16"
modes
TTL : ASAIISO film speed coupling
range : ASAIISO 25 to 400 ; useable
aperture range : f/2 .8 to f/22 (at
ASAIISO 100); coupling distance
range : 0.3m (1ft) to 11 m (36.1 ft)
(at ASAIISO 100 on land); 0.3m
(1 ft) to 5.6m (184ft) (at ASAIISO
100 underwater)
Non-TTL : Useable apertures : f/4
and f/8 (at ASAIISO 100); coupling
distance range : 0.6m (2ft) to 8m
(26.2 ft) (at ASAIISO 100 and f/4
on land) ; 0.6m (2ft) to 4m (131 ft)
(at ASAIISO 100 and f/4 underwater) ; 0.6m (2ft) to 4m (13.1 ft)
(at ASAIISO 100 and f/8 on land) ;
0.6m (2ft) to 2m (6.6ft) (at
ASAIISO 100 and f/8 underwater)
6kg/cm 2 (85 Ib/in2) maximum ;
useable to depths of 50m (160ft)
Indicates direction of flash head
when T-S switch is at "T.LlGHT"
or "T&S"
Wireless; triggered by light from
another flash unit when T-S switch
is at " SLAVE " or " T&S "
Flash head : Approx. 139 mm (W) x
1525mm(H)x 212mm(D)
Flash head without batteries :
Approx. 1670g
Supplied with ten items: Main flash head (including battery
cartridge), joint, bracket (with separate bracket screw), cord fastening
hanger, Wide Flash Adapter $W-102, O-ring set, target light, sync cord,
arm, and speedlight case $$-101.
Note: All performance data are for normal-temperature operation
{25°C (77 ° F)J.
Subjec t to change wit hout noti ce.
35
No reproduction in any form of this manual, in whole
or in part (except for brief quotation in critical articles
or reviews), may be made without written authorization from the publishers.
(N;lro,,)
NIPPON KOGAKU K.K .
Printed in Japan 8&067-A06
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