Nikon SB-25 User Manual

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For Effective Use of This Manual .....................................2

Table of Contents ....................................................4 — 5

Nomenclature...........................................................8 — 9
Main Features/Functions — 

SB-25’s Flash Capabilities ..............................10 — 17

Fully Automatic Fill Flash ...................................10 — 13

Automatic Balanced Fill-Flash .............................11
“TTL Multi-Sensor” Automatic Balanced 

Fill-Flash With F90-Series/N90 ........................12

FP High-Speed Sync Flash ..................................13 — 14
Rear-Curtain Sync Flash ..............................................15
Red-Eye Reduction Control...........................................16
Repeating Flash ..........................................................16
SB-25 Feature Comparison: Flash Operations

Available with Your Camera .....................................17

WARNING — TO AVOID INJURY..................................20
CAUTION — TO PREVENT DAMAGE TO 

THE SB-25 SPEEDLIGHT ..........................................20

Getting Started — SB-25 Set-Up........................20 — 23

Meters or Feet ........................................................21

Installing Batteries ............................................21 — 22
Attaching Flash Unit to the Camera 

Accessory Shoe.............................................22 — 23

Checking Battery Power ..............................................23

and Built-in Functions .....................................24 — 30

Front Position ...............................................24 — 25

Distance Computation....................................26 — 30
Setting ISO Film Speed

(Manual Adjustment)...............................27 — 28

Setting Aperture Value

(Manual Adjustment)...............................28 — 29

Setting Zoom-Head Position

(Manual Adjustment)...............................29 — 30

Automatically Compensated Flash Output ...32 — 79

For F90-Series/N90 Camera Users:
Choosing A Flash Method/Set Up and Practice......33 — 39
For F4-Series, F-801/N8008 and F-801s/N8008s

Choosing A Flash Method/Set Up and Practice......40 — 47
For F-601/N6006 and F-601

Choosing A Flash Method/Set Up and Practice......48 — 56
For F-401x/N5005 Users:
Choosing A Flash Method/Set Up and Practice......57 — 63
For F-501/N2020 and F-301/N2000 Users:
Choosing A Flash Method/Set Up and Practice......64 — 69
For F-401/N4004 and F-401s/N4004s Users:
Choosing A Flash Method/Set Up and Practice......70 — 75
For FA, FE2, FG and Nikonos V Users:
Choosing A Flash Method/Set Up and Practice......76 — 79

with Varied Lens Apertures.............................80 — 83

Output Control .................................................84 — 89

Synchronization in Continuous Shooting........................89

Exposure...........................................................90 — 95

At Higher Shutter Speeds .............................98 — 103

Guide number in FP High-Speed Sync Flash .....102 — 103

Flash Portraits..........................................................104

Light Flows...............................................................105

Illuminated Subject Lighter or Darker........106 — 107

To Make Background Lighter or Darker....108 — 109

— For Test Firing ................110

Focal-Length Lenses...............................................111

Position .........................................................112 — 113

Trouble With Wide Flash Adapter ............................113

in Dim Light ..................................................114 — 115

Conserve Energy and 
Shorten Recycling Time ..............................116 — 117

a Proper Aperture ....................................................118

Shadow ..........................................................119 —123 

Bounce Flash Photography.....................................122
Using a Diffuser ....................................................123

TTL Auto Flash Mode — To Flash 
On A Very Close Subject .............................124 — 125

Than One Speedlights .................................126 — 132

TTL Multiple Flash Photography ..................128 — 129
Manual Multiple Flash Photography ........................129
System Chart for TTL Multiple Flash ............130 — 131
Accessories for TTL Multiple Flash ..........................132

“Red Eye” .....................................................................134
Flash Sync Mode Selector 

Position.....................................................................135

Tips on Speedlight Care..................................136 — 137
About Batteries............................................................138
Specifications ..................................................139 — 141
Usable Aperture/Flash Shooting Distance 

Flash Modes.............................................................142

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