Nikon FG-20 Instruction Manual page 23

1/1000-1 sec. (manual):
Used for full manual control of both the f/stop and
shutter speed. Numbers on the dial are reciprocals ,
e.g., 1000 means
1/1000sec .,
500 means
1/500sec .,
and so forth. 60 is engraved in red to indicate the
fastest sync speed when using electronic flash units
other then Nikon dedicated Speedlights. Manual
settings are used in the following cases:
1. When using a separate exposure meter.
2. When intentionally over- or underexposed photos
are desired.
3. When manual exposure compensation is necessary
(see page 37 for more details).
4. When taking creative fill-in flash shots with Nikon
dedicated Speed lights where you want to use
shutter speeds of
1/60sec.
or slower.
• Even at manual settings, the meter needle doesn't show
the shutter speed set on the dial but it indicates the
correct shutter speed, according
to
the scene bright-
ness, the aperture set on the lens, and film speed in use.
·Intermediate settings on the shutter speed/mode selector
dial cannot be used while those on the lens aperture ring
®
can be. Therefore, stop the lens aperture down or open it up
to the appropriate intermediate setting when fine adjust-
ment of the exposure is necessary.
M90(mechanicaI1/90sec.):
At this setting , the shutter operates mechanically at
1/90sec.
This setting allows you to take pictures even
when the batteries are exhausted. It can also be used
for electronic flash photography with units other than
Nikon dedicated Speed lights.
B(bulb):
At this mechanical setting , the shutter curtains
®
remain open for as long as you depress the shutter
release button . The B setting is especially useful
when making long time exposures with a cable release
with the camera mounted on a tripod.
• To prevent inadvertent battery drain, you should set the
shutter speed/mode selector dial
to
M90
or
B when the
camera Is not in use. That way, even if the shutter release
button is depressed, the meter will not be activated .
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