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The
Nikon
FG
offers programmed mode operation,
aperture'prlority automatic mode operation, and
manual control
of
all
shutter speeds from 1 to 1/1000
sec,
including M90 and B (Bulb) settings.
To
set the
desired shooting mode or shutter speed, rotate the
shutter speed
1m
ode selector dial until the desired
setting
click·stops opposite the index line. Note that
at
A and P settings, a locking mechanism
is
provided
to
prevent accidental shifts of the setting.
To
rotate
the
dial to or from the A or P setting, depress the lock
button 2, provided
The
shutter speed/mode selector
dial
has the
follOWing
settings
B,
M90, eleven speeds
20
from 1 to 1/1000
sec,
A and P Intermediate settings
cannot be used.
P
(Programmed)
Used for completely automatic programmed mode
shooting. The
optimum combination of shutter speed
and aperture
value
is
automatically set by the
FG
's
microcomputer, depending upon scene brightness
and the
film speed
in
use.
The
electronically controlled
shutter speed
is
stepless between 1 and 1/1000 sec.
A
(Auto)
Used for aperture'prlority automatic mode shooting.
The f/stop
is
set manually and the FG's microcom·
puter selects the matching electronically controlled
shutter speeds steplessly between 1 and 1/1000 sec.
depending on the scene's brightness and the
film
speed
in
use.
Manual
Used for full manual control of both f/stop and shutter
speed.
All of the eleven shutter speeds indicated
on
the dial are electronically set,
With
accuracy assured
by a quartz
oscillator controlling shutter timing. Each
number shown
on
the scale
is
reciprocal, i.e
..
2
means
1/2 second, and
125
means 1/125 second. A
one·step change will either halve or double the expo·
sure, e.g., a shutter speed of 1/125 sec. lets
in
twice
as
much light
as
a setting of 1/250 sec., and half
as