Univex SB-900 user manual Switching illumination pattern, D–24, Standard, Center-weighted, Even

D

Flash modes and functions

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

• 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.

Center-weighted

• 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.

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.

D–24