Nikon SB-25 User Manual

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In TTL Auto Flash mode, the SB-25 Speedlight can be used
for just about any shooting situation, from bright scenes to
dim lights. For precisely controlled exposures in wider
brightness ranges or more complex conditions, you can use
fill-flash techniques with automatic operation and/or
advanced user-controlled options.

The SB-25’s TTL Auto Flash mode offers even more flash

applications and options, such as flash synchronization with
slow shutter speeds (slow sync flash), bounce flash and cre-
ative close-up photography.

Even simple snap shots can be taken with a sophisticat-

ed touch. By setting the SB-25 to TTL Auto flash mode, you
can enjoy flash photography that is simple, yet the most
advanced available.

Using this flash mode with your camera
The SB-25 works in different ways, depending on which
camera it is used with. TTL Auto Flash mode, in particular,
offers several noteworthy features that vary from one model
to another. Be sure to read “Fully Automatic Fill-In Flash,”
pages 10 through 13, to become familiar with these SB-25
capabilities.

Use the following chart to locate pages relevant to your

camera model and the flash operation you wish to use.

The SB-25 enables you to perform any of the following fully
automatic fill-flash functions, or choose Standard TTL Flash.
(Functions are described in detail on pages 10 to 13.):

• 3D Multi-Sensor Balanced Fill-Flash
• Multi-Sensor Balanced Fill-Flash
• Center-Weighted Fill-Flash
• Spot Fill-Flash

Use the chart at right to confirm which flash method you

will perform with the lens in use and metering system set on
the camera. In most cases, the lens/meter combination
determines the flash method.

If you have extra lens(es), you may be able to select a

particular flash method. For example, by replacing a D-Type
AF Nikkor with an AI-P lens, you can switch from 3D Multi-
Sensor to Multi-Sensor Fill-Flash.

By using the SB-25’s 

button, you can perform

Standard TTL Flash (except for P and Ps exposure modes),
regardless of lens type.

1) Suitable lenses and use depend on camera; see instruction manual for infor-

mation.

2) Except D-Type and AF Nikkor lenses for F3AF.
3) You can not use the Ps mode as the shutter locks.
4) Only 3D Multi-Sensor Balanced or Multi-Sensor Balanced Fill-Flash can be

performed; Standard TTL Flash is not available and the 

button cannot be

used.

5) Exposure mode (P or S) automatically shifts to aperture-priority auto (A), and

the mode indication blinks in the camera’s LCD panel; set desired aperture
manually.

Programmed auto (P, Ps) 

4)

Programmed auto (P, Ps) 

4)

Shutter-priority auto (S)

Shutter-priority auto (S)

Aperture-priority auto (A)

Aperture-priority auto (A)

Manual (M)

Manual (M)

Aperture-Priority auto (A) 

5)

Manual (M)

3D Multi-Sensor

Balanced Fill-Flash

Multi-Sensor

Balanced Fill-Flash

Center-Weighted 

Fill-Flash

Spot Fill-

Flash

See pages

For F3-Series, F2-Series, FM2 and FG-20 users
No information is provided for these models in this
section, because they do not function in TTL Auto
Flash mode.

3D Multi-Sensor Balanced Fill-Flash
Multi-Sensor Balanced Fill-Flash
Center-Weighted Fill-Flash
Spot Fill-Flash
Standard TTL Flash

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