Nikon F4S - Exposure Compensation Dial for Interchangeable; Accessory Shoe

Exposure Compensation Dial for
interchangeable Focusing Screens
Because the light metering system is incorporated in the finder,
it may be necessary to compensate the measured value when
using a focusing screen other than the standard interchange-
able Advanced Type B BriteView screen provided. Compensa-
tion is within the range from —2 to +0.5 EV in 0.5 EV steps.
To adjust, remove the finder from the camera body and rotate
the screw-like dial with the screwdriver provided, while referring
to the compensation value scale window and the instruction
manual for the screen concerned.
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Accessory Shoe
Located at the top of the Multi-Meter Finder DP-20, the ISO-
type hot shoe allows direct mounting of a wide range of Nikon
dedicated electronic speedlights, including SB-24, SB-23,
SB-22, SB-20, SB-18, SB-16B and SB-15. Other Nikon speed-
lights may be mounted with a compatible Nikon flash unit
coupler. Four electrical contacts in the shoe provide the follow-
ing when used with a compatible Nikon speedlight: proper
synchronization of the flash unit, automatic flash output stop,
identification of a TTL flash unit, and both viewfinder ready-light
indication and automatic switching to the proper sync speeds
with Nikon dedicated speedlight units.
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