Along with the extremely compact electronic TTL capable AF SB-23, SB-24 was also
introduced in 1988 to supplement the AF-Nikon F801 (N8808 in US). The F-801 has
a few very interesting feature in its design at the time of its introduction.
Other than a high speed 3.3 fps built-in power drive, the AF Nikon is equipped
with a fast 1/250 sec. flash sync speed which for the first time, offers
Matrix-metered TTL fill-in flash and second curtain sync in a Nikon camera. For
the first few months, the F-801 was seemed like a preview to showcase a possible
how the next generation of the professional class Nikon SLR after the Nikon F3
will look like.


While the F-801 was debuted earlier
(mid-1988), the subsequent pro-calibre Nikon F4 which introduced late that year
in 1988 and immediately, all the essential technical features found in the
amazing SB-24 can be fully realized immediately with the Nikon F4 - or in
another words, Nikon F4 has a readily available high performance flash for
photographers immediately when it was debuted.


This remarkable Nikon SB-24 TTL
Speedlight offers TTL flash control on most TTL-capable Nikon bodies. It has
many advanced features such as Matrix and Center-Weighted filled-in flash, TTL
automatic flash control, Full power TTL manual flash control with multiple auto
settings (five power levels), six apertures settings in automatic flash,direct
and diffusion of power, repeating/stroboscopic flash capabilities, manual
overriding, AF assist infrared beam for low or even total darkness shooting and
a built-in variable zoom head for focal length control. The SB-24 can
synchronize with up to four additional flashes. Head tilts from -7 degrees below
horizontal up to 90 degrees above horizontal, and rotates -270 degrees to plus
180 degrees clockwise.


Similarly, with the Nikon F4 series and other capable Nikon bodies introduced at
a much later stages, rear curtain sync and Multi-Sensor Balanced Fill-Flash with
the later Nikon AF cameras such as Nikon F5, F100, F90x, F85, PRONEA 600i or F70
etc. with any AF-Nikkor CPU lens*. With F4-series, F-801s, F-601, F50 or
F-401x and a CPU lense **, it synchronizes well to be used as a
dedicated Speedlight for Matrix Balanced Fill-Flash. But the SB-24 does not
support other popular features found in other later Nikon bodies introduced
after F90(x), such as red eye reduction, FP high speed flash sync, 3D Matrix
Multi-Sensor Balance-Fill flash, cordless slave remote function etc.


In order to accommodate all the
sophisticated features, this features-rich Nikon AF Speedlight has to make use
of a LCD display system helps to aid photographer to control all its various
sophisticated functions. Incidentally, the SB-24 was also the first Nikon
electronic Speedlight that carries a LCD display.


more:
http://www.mir.com.my/rb/photography...f4/flash/SB24/