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FOREWORD
________
_
The
Nikonos 8peedlight 88-102,
an
amphibious high-
performance electronic flash unit with a s
il
icon-con-
trolled 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 speedlights could not
be
taken.
In combination wi
th
the Nikonos-V, the 88-102 features
automatic through-the
-I
ens (TTL) flash exposure con-
trol. 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
contro
ll
ed
by
the 8U
-101
.
This speedlight h
as
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
po
wer settings
("F
U
LL
," " 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 men-
tioned, a variety of optional accessories
is
available to
increase the versatility of the
88
-
102.
Even
though this speedlight
is
extremely easy to oper-
ate, you should still familiarize yourself with the pre-
paratory 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 reward-
ing
photographic experience
s.
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-service-
able 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 follow-
ing
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
water-
proof,
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 conditio
n,
and when all components are
properly assembl
ed
and closed.
Pay
special attention to the instructions for installing
the O-rings because they are what make the Nikonos
8peedlight 88-102 watertight. For the O-rings to per-
form 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 pro-
perly 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.