Time Lapse - Nikon Motor Drive MD-11 Instruction Manual
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TIME LAPSE
Time lapse photography, the taking
of
a series
of
photo-
graphs over a
period of time from a fixed position, is
easily accomplished
with your MD-11
equipped camera
and a suitable
timing device. Timing devices for time
lapse
photography-
the Nikon MT-1 intervalometer,
for
example-
usually have two
variable
controls: one for
pulse duration
and
the
other
for interval time. Pu Ise
duration
refers to the length
of
time that the triggering
pulse lasts. Interval time is the time interval between
pulses
and governs
the frequency
of
the photographs.
Additionally,
the S-C
selector on
the MD-ll provides
you
with the option
of
taking
single
photographs
or
shooting
in bursts.
With
the
S-C selector
set
to
"S," one exposure
will be
made
for each
triggering pulse, the motor winding
on
automatically at
the
end
of the triggering pulse
or
the
exposure,
whichever is longer. The interval time
can
be
set at any
duration, but
avoid setting
the trigger pulse
longer than the interval time. Otherwise continuous
or
erratic operation
will
occur.
With the S-C
selector set
to
"C,"
if the triggering
pulse's duration is longer than the
shutter speed set (or
0.25
sec.
in the
case of
the higher
shutter speeds),
bursts will be fired
at each
interval. For
example,
if the
shutter speed
is
set at
1/1000
sec., and
the trigger pulse
duration is
2 sec.,
then
approximately
7
exposures
will
be made
at each
interval.
Generally
speaking you
will find
that operation
with
the S-C
selector
set to
"s"
and
the trigger pu Ise du ra-
tion
set
between 0.1
and
0.25
sec.
is
advisable for
the
majority
of
time lapse
situations.
The variab Ie
trigger
pulse duration found
on some
intervalometers
is a fea-
ture necessitated by the design
of
the
older generation
of
motor drives,
and
is largely redundant with the
MD-11. Time lapse photography is not possible with
the
shutter speed
dial set to "8." Should you
attempt
this, the camera's mirror may lock up, with the
shut-
ter remaining
open,
making
operation
impossible. To
restore normal
operation
in the
event of
this happen-
ing, merely turn the
shutter
speed dial
away from the
"8" setting.
13
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