Auto Aperture Flash Mode - Nikon SB-5000 Reference Manual

Auto Aperture Flash Mode

The SB-5000's light sensor for non-TTL auto flash measures the flash that
is reflected on the subject, and the SB-5000 controls the flash output level
according to the lens and camera information transmitted to the SB-5000,
including ISO sensitivity, exposure compensation value and aperture.
• When no aperture information is transmitted to the SB-5000, the flash
mode is automatically set to non-TTL auto flash.
Auto aperture flash mode LCD example
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Monitor pre-flashes
• Monitor pre-flashes can be activated or canceled as a non-TTL auto flash
mode option in the custom settings (0B-24).
• Flash output is controlled more accurately with monitor pre-flashes.
The SB-5000 emits monitor pre-flashes before actual firing to obtain
reflected flash data.
• Monitor pre-flashes should be activated when auto FP high-speed sync
(0E-31) or FV lock (0E-32) is used.
: Monitor pre-flashes
: Auto aperture flash
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C-8