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The new SB-800 incorporates systems that communicate flash output informationduring exposures to the image processing engine of the newNikon D2H Digital SLR.

The principle is to deliver uniform AWB results during flash exposuresof varying subject distances.

Flash value Lock (FV-Lock)

The SB-800 introduces a new FV-Lock function that enables the user tolock flash output over a sequence of shots, in the same wayand using the same camera body button as the AE-Lock (AE-L) function usedfor ambient exposure lock.

AUTO FP High-Speed Sync

The mechanical shutter of the D2H has a flash sync speed of 1/250th sec.The new SB-800 can automatically set itself to FP (Focal Plane) flashmode should camera shutter speed rise above the standard flash sync speedfor Balanced Fill Flash in bright light with high shutter speeds or fastaperture lenses.

FP mode outputs a series of smaller continuous flashes that synchronizeat up to 1/8000th second with the new Nikon D2H Digital SLR.

Wide Area AF-assist illumination

Compatibility with the Nikon D2H extends to performing AF area assistillumination to the new wide 11-area layout of the D2H Multi-CAM2000 AFsystem, to deliver precise AF performance in lighting situations belowthe AF systems 1EV (ISO100) sensitivity.

In addition to the refinements of i-TTL the new SB-800 incorporates innovativenew systems for multiple location lighting arrangements as well.

Advanced Wireless Lighting

The SB-800 incorporates Nikons exclusive Advanced Data Communicationtechnologies that enable complex inter Speedlight unit communication.The system is designed to make shooting with groups of Speedlights aseasy to use as a single on camera Speedlight.

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