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SHUTIER
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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.
67