1. Turn the film speed ring on the controller's

aperture/reproduction ratio dial until the film speed index is opposite the film speed

in use.

The two dots between the numbers on the film speed scale stand for intermediate settings.

Full light output

1/4 light output 1/16 light output

2 Turn lens selector knob to

• set lens index.

With lens in normal position:

Set the lens index on the controller to the focal length of the lens in use. With lenses not listed on the scale, use intermediate settings.

With lens in reverse position (55mm Micro·Nikkor or 20mm to 35mm Nikkor lens only):

Set lens index to the red " RE- VERSE " position .

3 Determine proper aperture for desired

 

Follow the white line (tor lens in normal position) or red

 

• reproduction ratio.

 

line (for lens in reverse position) from the reproduction

Each of the aperture indicator lines are marked with

ratio scale for the desired reproduction ratio until the

white or red line intersects the light output index on the

light output indexes. The light output indexes at the left

aperture indicator, then read the flstop indicated.

are for full light output, the center indexes for 1/4 light

For example, with ISO 100 film and the Micro-Nikkor

output, and the right ones for 1/16 light output.

 

 

55mm f/2.8 lens in normal position , to obtain 1:5 re-

 

 

 

I ~----------------See page 48 for determining aperture accord ~\

production ratiO, use f/8 for 1/16 light output, f/16 for

1/4 light output or f/32 for full light output. For usable

\

ing to the shooting distance.

J

aperture with a reproduction ratio lower than 1:10, seA

 

~----------------~

 

page 40.

38

Page 37 Page 39
Page 38
Image 38
Nikon SB-21 instruction manual With lens in normal position
Page 37 Page 39

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.
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