SPECIFICATIONS --------------

Electronic

Automatic silicon·controlled

construction

rectifier and series circuitry

Guide number at

13 (at ISO 100 and meters) or

flash·to·subject 21 (at ISO 25 and feet), for both distance of 1m fl ash modules at full light output,

(approx. 3.3 It)

when the S8·21 is powered by

 

 

batteries inside the controller

Angle of

65 0 horizontal and 85 0

vertical

coverage

when both flash modules fire

 

 

(measured 1m away)

 

Flash duration (approx.)

 

 

 

With both flash

With one flash

 

modules

module

Light

With fresh

With

With fresh

With

output

external

external

 

controller

power

controller

power

 

batteries

batteries

 

source

source

 

 

 

Full

1/2000sec .

1I1100sec.

1/1600sec.

1/870sec .

1/4

1/6500sec .

1/4700sec . 1/5300sec . 1/4500sec .

1/16

1/25000sec . 1/15000sec . 1/22000sec. 1/15000sec .

Power source

Four 1.5 V AA·typealkaline'

 

 

manganese, zinc·carbon or NiCd

 

 

batteries; external power sources

 

 

include optional AC Unit LA-2

 

 

and DC Unit LD·2 which holds

 

 

eight 1.5 V AA·typebatteries

Number of flashes and recycling time at manual full light output

 

 

 

Number of

Recycling

 

Battery type

flashes

time

 

 

 

(approx.)*

(approx.)*

Inside

 

Alkaline·manganese

200

8sec.

 

Zinc·carbon

50

13sec.

controller

NiCd"

60

7sec .

 

 

Inside

 

Alkaline·manganese

300

4sec .

 

Zinc·carbon

90

8sec.

LD-2

 

 

NiCd**

100

3sec .

 

 

•Greater number of flashes and decreased recycling time are avaifable at 114 or 1116 light output, or during TTL auto flash operation.

•- With NiCd batteries, number of flashes and recycling time depend on battery condition.

Flash exposure Two flash modes are available,

control

manual and TTL auto

TTL mode

For TIL auto flash operation ;

 

with S8-21 A, this is possible only

 

with Nikon F3-series cameras;

 

with SB-21 B, this is possible only

 

with the Nikon F4-series,

 

F-801/N8008, FA, FE2,

 

F-501/N2020, F-301/N2000 or

 

FG cameras

Usable film speed ISO 25 to 1000 with Nikon

range in TTL

F4-series, F-801/N8008,

mode

F-501/N2020 and F-301 /N2000;

 

ISO 25 to 400 with Nikon

 

F3-series, FA, FE2 and FG

M mode

For manual flash operation ; light

 

output can be varied in three

 

steps-full, 1/4 and 1/16

Dimensions

 

(approx_)

 

S8-21 Main Unit

130 mm x 120 mm x21mm

AS-12 Controller

100mm x 90mm x 41.5mm

 

(excluding mounting foot)

AS-1 4 Controller

100mm x 90mm x 41 .5mm

 

(excluding mounting foot)

Weight (approx.)

 

S8-21 Main Unit

145g

AS-12 Controller 280g

(without batteries)

AS-1 4 Controller

250g

(without batteries)

Accessories

Condenser Adapter SW-8; 52mm

provided

adapter ring; 62mm adapter ring;

 

soft cases SS-21 (for S8-21 Main

Unit, SW-8 and 52 mm and 62mm adapter rings), SS-17 (for controller)

•All performance data are for normal-temperature operation [20°C (68°F)]

•Specifications and designs are subject to change without notice.

47

Page 46 Page 48
Page 47
Image 47
Nikon SB-21 Vertical, Include optional AC Unit LA-2, DC Unit LD·2 which holds, Eight 1.5 V AA·typebatteries, FG cameras
Page 46 Page 48

SB-21 specifications

The Nikon SB-21 is a highly regarded external flash unit that has earned a reputation among photographers for its versatility and reliable performance. Designed for use with Nikon’s line of DSLR cameras, this compact flash unit is favored by both amateur and professional photographers alike.

One of the key features of the SB-21 is its powerful guide number, which provides robust illumination in various settings. This allows users to effectively light subjects even in challenging low-light environments or larger spaces where additional lighting is essential. The SB-21 also boasts a range of customizable settings, giving photographers control over the intensity and direction of light.

The flash offers a zoom head, which allows it to cover various focal lengths. This adaptability is particularly beneficial for photographers who frequently switch between wide-angle and telephoto lenses. The ability to zoom not only enhances light coverage but also ensures that the flash can be fine-tuned to match the specific needs of each shot.

In terms of technology, the SB-21 integrates Nikon’s advanced i-TTL metering system. This intelligent system measures the light needed for a scene and adjusts the flash output accordingly, resulting in well-exposed images with minimal user intervention. This feature enables photographers to focus on their composition without worrying about manual exposure settings.

The build quality of the SB-21 is another highlight, as it is designed to withstand the rigors of regular use. It features a durable exterior that enhances its longevity, making it a trustworthy tool for outdoor and event photography. Additionally, the flash unit supports wireless operation, enabling users to trigger it remotely for creative lighting setups.

The Nikon SB-21 also includes a variety of accessories, such as diffusion panels and bounce cards, allowing further customization of light output to achieve specific effects.

Overall, the Nikon SB-21 stands out as a reliable and feature-rich external flash unit that meets the demands of various photographic styles. Its versatility, intelligent technology, and robust construction make it an essential accessory for any Nikon photographer looking to enhance their lighting capabilities. Whether shooting portraits, events, or creative projects, the SB-21 delivers exceptional performance and quality, making it easier to capture stunning images in any lighting condition.
Top Page Image Contents