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Nikon SB-25 User Manual

Nikon SB-25
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2322
Chapter
2
Getting Started
4
Close the battery chamber lid,
then slide cover to close.
Attaching Flash Unit to Camera Accessory Shoe
5
Turn the SB-25s mounting foot
locking wheel to the loosened
position as far as it goes, without forc-
ing.
6
Slide the mounting foot forward
onto the cameras accessory
shoe as far as it goes.
7
Tighten the locking wheel, taking
care not to over-tighten.
For Nikon F3 Series users
The SB-25 can only be mounted on an F3 Series cam-
era that uses a DE-2 or DE-3 finder. Be sure to attach
Flash Unit Coupler AS-4 or AS-7 to the cameras
accessory shoe before mounting the SB-25 on the
camera.
Checking Battery Power
8
Set power switch to STBY (stand-
by position) or ON to turn on the
speedlight.
If batteries are properly installed/
power is sufficient, ready-light will
come on, and LCD indications will
appear.
LCD figures and symbols for meters
(m) and feet (ft) do not appear simulta-
neously, as shown above. They are
shown together throughout this manu-
al for ease of explanation.
Replace batteries with a fresh set:
With alkaline-manganese batteries replace if ready-
light takes more than 30 sec. to light up.
With NiCd batteries remove if ready-light takes
more than 10 sec. to light up.
Precaution for Nikon F90-Series/N90 users
As the locking wheel is tightened, the SB-25 is firmly
attached to the accessory shoe with the mount pin. Be
extra careful that the locking wheel is completely loos-
ened before removing the flash unit from the camera
or it may cause damage to both units.
SB-25_En 03.1.14 8:18 PM Page 22

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Nikon SB-25 Specifications

General IconGeneral
BrandNikon
ModelSB-25
CategoryCamera Accessories
LanguageEnglish

Summary

FOREWORD

For Effective Use of This Manual

Explains how to use the manual by referring to camera-specific index tabs for optimal understanding.

Chapter 1: Introducing the SB-25 Autofocus Speedlight

Nomenclature

Details the various parts and components of the SB-25 Speedlight unit with their names and functions.

Main Features/Functions - SB-25's Flash Capabilities

Outlines the key features and capabilities of the SB-25 Speedlight, including different flash modes like TTL Auto.

Chapter 2: Before Flash Shooting

Getting Started - SB-25 Set-Up

Provides initial setup steps for the SB-25, including installing batteries, attaching to camera, and turning on.

Selecting Measurement System, Meters or Feet

Explains how to select between meters and feet for distance measurement indication on the LCD panel.

Installing Batteries

Details the correct procedure for inserting AA-type batteries into the SB-25's battery chamber.

Attaching Flash Unit to Camera Accessory Shoe

Guides the user on how to securely mount the SB-25 onto a camera's accessory shoe using the locking wheel.

Checking Battery Power

Describes how to check the remaining battery power using the SB-25's indicator lights and LCD panel.

Adjustment Functions — Using LCD Panel and Built-in Functions

Adjusting Flash Head To Horizontal/Front Position

Instructs on how to set the flash head to the standard horizontal and forward-facing position for optimal flash photography.

Using LCD Panel For Shooting-Distance Computation

Explains how to use the SB-25's LCD panel to compute shooting distance based on ISO, aperture, and zoom-head position.

Setting ISO Film Speed (Manual Adjustment)

Details the process for manually setting the camera's ISO film speed on the SB-25's LCD panel.

Setting Aperture Value (Manual Adjustment)

Guides on manually setting the aperture value on the SB-25's LCD panel for exposure calculation.

Setting Zoom-Head Position (Manual Adjustment)

Explains how to manually adjust the zoom-head position on the SB-25 for optimal light coverage.

Chapter 3 Shooting Practice and Flash Mode

TTL Auto Flash TTL Mode — Fill-Flash with Automatically Compensated Flash Output

Details using TTL Auto Flash mode for fill-flash photography with automatic exposure compensation.

Choosing A Flash Method

Explains how to choose appropriate flash methods like Matrix Balanced Fill-Flash or Standard TTL Flash based on camera and lens.

TTL Auto Flash TTL Mode: For F90-Series/N90 Users

Specific instructions for using TTL Auto Flash mode with Nikon F90-Series/N90 cameras.

Set Up and Practice

Provides setup and practice steps for TTL Auto Flash mode, especially with compatible lenses and cameras.

Confirming Settings

Guides on confirming all settings before taking a shot in TTL Auto Flash mode for precise exposure.

Chapter 3 TTL Auto Flash Mode: For F4-Series, F-801/N8008 and F-801s/N8008s Users

Choosing A Flash Method

Explains flash method selection for F4-Series, F-801/N8008, and F-801s/N8008s cameras.

Set Up and Practice

Provides setup and practice steps for TTL Auto Flash mode with these specific camera models.

Confirming Settings

Guides on confirming all settings before taking a shot in TTL Auto Flash mode for these cameras.

Chapter 3 TTL Auto Flash Mode: For F-601/N6006 and F-601M/N6000 Users

Choosing A Flash Method

Explains flash method selection for F-601/N6006 and F-601M/N6000 cameras.

Set Up and Practice

Provides setup and practice steps for TTL Auto Flash mode with these specific camera models.

Automatic Balanced Fill-Flash button

Explains how to use the camera's button to activate automatic fill-flash functions.

Chapter 3 TTL Auto Flash Mode: For F-401x/N5005 Users

Choosing A Flash Method

Explains flash method selection for F-401x/N5005 cameras.

Set Up and Practice

Provides setup and practice steps for TTL Auto Flash mode with F-401x/N5005 cameras.

Confirming Settings

Guides on confirming settings for TTL Auto Flash mode with F-401x/N5005 cameras.

Chapter 3 TTL Auto Flash Mode: For F-501/N2020 and F-301/N2000 Users

Choosing A Flash Method

Explains flash method selection for F-501/N2020 and F-301/N2000 cameras.

Set Up and Practice

Provides setup and practice steps for TTL Auto Flash mode with these camera models.

Confirming Settings

Guides on confirming settings for TTL Auto Flash mode with these cameras.

Chapter 3 TTL Auto Flash Mode: For F-401/N4004 and F-401s/N4004s Users

Choosing A Flash Method

Explains flash method selection for F-401/N4004 and F-401s/N4004s cameras.

Set Up and Practice

Provides setup and practice steps for TTL Auto Flash mode with these camera models.

Confirming Settings

Guides on confirming settings for TTL Auto Flash mode with these cameras.

Chapter 3 TTL Auto Flash Mode: For FA, FE2, FG and Nikonos V Users

Choosing A Flash Method

Explains flash method selection for FA, FE2, FG, and Nikonos V cameras.

Set Up and Practice

Provides setup and practice steps for TTL Auto Flash mode with these camera models.

Confirming Settings

Guides on confirming settings for TTL Auto Flash mode with these cameras.

Chapter 3 Non-TTL Auto Flash A Mode — Shooting with Various Lens Apertures

Set Up and Practice

Details setup and practice for Non-TTL Auto Flash A mode, covering lens aperture usage.

APPLICABLE NIKON SLR MODELS

Lists Nikon SLR models compatible with Non-TTL Auto Flash A mode.

Chapter 3 Manual Flash M Mode — Manual Light-Output Control

Set Up and Practice

Guides on setting up and practicing Manual Flash M mode for controlled light output.

Fine light-output adjustment

Explains how to finely adjust light output levels in Manual Flash mode using ±1/3 increments.

Using guide number

Describes the use of guide numbers for calculating proper aperture in manual flash photography.

Chapter 3 Repeating Flash Mode — For Multiple Exposure

Set Up and Practice

Provides setup and practice steps for using Repeating Flash mode for multiple exposures on a single frame.

Determining shutter speed with number/speed of flashes

Explains how to calculate appropriate shutter speeds for repeating flash based on flash frequency and frame count.

Chapter 4 Flash-Shooting Applications

FP High-Speed Sync Flash — Flash Photography At Higher Shutter Speeds

Details FP High-Speed Sync Flash for faster shutter speeds, enabling unique lighting effects and shallow depth of field.

Red-Eye Reduction Control — For Better Flash Portraits

Explains the Red-Eye Reduction Control feature to minimize red-eye effects in portraits.

Rear-Curtain Sync Flash — For Natural Light Flows

Describes Rear-Curtain Sync Flash for creating natural light trails following moving subjects.

Flash Exposure Compensation — To Make Flash-Illuminated Subject Lighter or Darker

Guides on manually adjusting flash output level to make subjects lighter or darker in TTL Auto Flash mode.

Open Flash Button — For Test Firing

Explains the function of the open flash button for performing test flashes to check shooting range.

Built-In Wide Flash Adapter — For Shorter Focal Length Lenses

Details the use of the built-in wide flash adapter for wider coverage with shorter focal length lenses.

Zoom-Lock Capability — To Fix Zoom-Head Position

Explains how to lock the zoom-head position for consistent light coverage across various lenses.

AF Assist LED — Autofocus Flash Photography in Dim Light

Describes the AF assist LED feature for enabling autofocus in low-light conditions.

Power Switch Standby (STBY) Position — To Conserve Energy and Shorten Recycling Time

Explains the STBY mode for conserving battery energy and reducing recycling time.

Guide Number — Calculate a Proper Aperture

Details how to use guide numbers to calculate the correct aperture for manual flash photography.

Diffusing Light — To Soften Harsh Shadows

Explains techniques for diffusing light to soften shadows and achieve more flattering portraits.

Bounce Flash Photography

Guides on using bounce flash techniques for softer, more natural lighting effects.

Using a Diffuser

Explains how to use diffusers to soften light and improve portrait quality.

Close-Up Flash Photography in TTL Auto Flash Mode — To Flash On A Very Close Subject

Details TTL Auto Flash techniques for close-up photography with subjects at very short distances.

Multiple Flash Photography — Using More Than One Speedlight

Explains how to use multiple speedlights for advanced lighting setups and to overcome harsh shadows.

System Chart for TTL Multiple Flash

Provides a chart detailing compatibility and connections for TTL multiple flash photography setups.

Accessories for TTL Multiple Flash

Lists and describes accessories required for TTL multiple flash photography setups.

Chapter 5 Red Eye

Angle of reflection vs. distance to subject

Illustrates how the angle of light reflection and distance affect the occurrence of red-eye.

Flash Sync Mode Selector NORMAL vs. REAR Position

Explains the difference between NORMAL and REAR sync modes and their effects on flash photography.

Tips on Speedlight Care

About Batteries

Specifications

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