Nikon SB-102 instruction manual Foreword, Preparation

FOREWORD_________

The Nikonos 8peedlight 88-102, an amphibious high- performance electronic flash unit with a silicon-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 with the Nikonos-V, the 88-102 features automatic through-the -Iens (TTL) flash exposure con- trol. This means the silicon photodiode (8PD) in the Nikonos -V'sshutter 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 8U-101 .

This speedlight 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 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 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-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 condition, and when all components are properly assembled 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

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.

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