SHUTIER SPEED DIAL

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The F4 features an electromagnetically controlled vertical-travel focal plane shutter which consists of four front and four rear curtains.

For Manual and Shutter-Priority Auto Exposure, you can set any of 16 different shutter speeds from 4 sec. to 1/8000 sec. Intermediate shutter speeds cannot be set. Three other settings

-B, T and X - are also possible. For P modes and A mode, the shutter operates steplessly from 30 sec. to 1/8000 sec.

B Setting

At the "Bulb" setting, the shutter remains open as long as the shutter release button remains depressed. This setting should be used only in the Manual Exposure mode. Set shutter speed dial to B.

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Nikon F4 Body Only, F4S instruction manual Shutier Speed Dial, Setting