Univex SB-900 user manual Auto aperture flash, tMonitor pre-flashes

Models: SB-900

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Auto aperture flash

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Flash modes and functions

Auto aperture flash

tMonitor pre-flashes

Monitor pre-flashes on or off can be set by using the custom setting. (kC-22)

The SB-900 fires a series of imperceptible monitor pre-flashes immediately before the flash fires to obtain information on the subject.

To perform the Auto FP-High Speed Sync (kD-55) or FV Lock (kD-55), activate the monitor pre-flashes.

Flash shooting distance range in Auto aperture flash mode

The flash shooting distance range is indicated by numbers and a bar chart in the LCD.

Set the shooting distance within this range.

The range varies depending on ISO sensitivity, camera’s image area setting, illumination pattern,

angle of coverage and aperture. For more information, see “Specifications.” (kF-16)

v Notes on using a telephoto lens in the Auto aperture flash mode

• When shooting a distant subject using a telephoto lens in “Auto aperture flash” mode, underexposure may occur even though the subject is within the flash shooting distance range.

• Use of the i-TTL mode is recommended.

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Page 56
Image 56
Univex SB-900 user manual Auto aperture flash, tMonitor pre-flashes