Nikon SB 900 User Manual - Page 74

Switching illumination pattern

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Switching illumination pattern In flash photography, the center of the image is most illuminated, while the edges are darker. The SB-900 provides three types of illumination patterns with different light falloff at edges. Select suitable type according to the shooting environment. • For sample images of three types of illumination patterns, see the separate volume "A collection of example photos." Pp. 2-3 Standard D • The basic illumination pattern type for common flash shooting environment. • To match the image circle of digital cameras, light falloff at the edge of image is less than shooting with existing external flash unit. Flash modes and functions Center-weighted Even • The center-weighted pattern provides larger guide numbers at the center of the image than other illumination patterns at the same focal length (the light falloff at the edge will be greater than other illumination patterns). • Suitable for shots, such as portraits, in which the light falloff at the edge of an image can be ignored. • The light falloff at the edge of the image is less than with the standard illumination pattern. • Suitable for shooting group photographs indoors, in which sufficient light is required without light falloff at the edges. D-24

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D
–
24
D
Flash modes and functions
Switching illumination pattern
Even
The light falloff at the edge of the
image is less than with the standard
illumination pattern.
Suitable for shooting group
photographs indoors, in which
sufficient light is required without light
falloff at the edges.
•
•
The center-weighted pattern
provides larger guide numbers at
the center of the image than other
illumination patterns at the same
focal length (the light falloff at the
edge will be greater than other
illumination patterns).
Suitable for shots, such as portraits,
in which the light falloff at the edge
of an image can be ignored.
•
•
Center-weighted
Standard
The basic illumination pattern
type for common flash shooting
environment.
To match the image circle of digital
cameras, light falloff at the edge
of image is less than shooting with
existing external flash unit.
•
•
In flash photography, the center of the image is most illuminated, while the edges
are darker. The SB-900 provides three types of illumination patterns with different
light falloff at edges. Select suitable type according to the shooting environment.
For sample images of three types of illumination patterns, see the separate
volume “A collection of example photos.” Pp. 2-3
•