El
ec
troni
c Flash
3. Used
with
the
lens shutter cocked and
the
U-S lever set
to
"s"
it
may be used
for
producing multiple exposures and also
for
reducing camera shake. In this instance.
the
camera's
sh
u
tter
is
locked opened
by
turning
it
to
the
special time setting and
tripping
the
lens shutter. Repeat
the
process
for
additional
exposures. (Details on
the
methods
for
trip-
ping the shutter and multiple exposure tech-
niques are given in
the
individual instruction
manual
for
this lens.)
40ms
Notes
on
Flash
Photography
with
the
Lens
Shutter
1. Electronic flash units synchronize at all
settings
from
1/
30
to
1/
500
sec.
2. MF and M flash bulbs are
the
most
suitable
for
bulb flash
with
the
lens shutter. Both
types will give full flash at
the
1/
30
shutter
speed setting.
•
MF
bulbs will produce half flash
at
1/
60
sec.
•
FP
bulbs
will
give 2/3 flash at 1/
30
sec ; 1/ 5
flash at 1/
60
sec.
21
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