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Following is a procedure for making a multiple-exposure
photograph using the LINE -FREO-SUBMUL TIPLE mode:
a. Perform steps a and b of the single-flash procedure.
b. Obtain the guide-number multiplier from Figure 4 and
multiply it by the guide
number.
c.
Calculate the aperture setting (with the formula in
the single-flash procedure) using the
corrected
guide num-
ber.
Adjust the
camera
accordingly.
d. Estimate the strobe flash rate required to give the
number of images desired and adjust the strobe
accordingly.
e.
Adjust the camera shutter speed so that the shutter
will remain open long enough for the desired number of
images to be recorded on fi I
m.
f. With the strobe flashing at the desired rate, release the
shutter to take the multiflash photo.
1.1
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w
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0.6
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100
1000
FLASH RATE - FLASHES PER MINUTE
Figure 4. Guide-number correction for repetitive flashing.
LAMP REPLACEMENT.
10,000
154~
The following lamp-replacement procedure is recommen-
ded:
a.
Unplug the power cord.
b.
Loosen the case screws that are closest to the reflector
by turning them 2 turns ccw.
c. Insert the tip of a screwdriver blade in the reflector-
cover slot shown in Figure 1.
d. Snap the reflector cover out of the retaining slots by
quickly rotating the screwdriver toward the rear of the
instrument -
do not
be
concerned about breaking the
reflector cover.
e. Carefully pull the lamp out of its socket.
To Install a Lamp:
a.
Insert the new lamp pins in the socket and carefully
push the lamp inward until
it
seats firmly.
b. Place one end of the reflector cover in the retainer
slot in the bottom half of .the
case.
c. Place the tip of a screwdriver
hlr:~de
in the other
retainer
slot.
4
d.
Rotate the screwdriver toward the reflector
cover.
This action will pry the
case
outward and simultaneously
bend the reflector
cover
slightly,
causing
it to pop into
place.
e. Check to see that the side panels are properly seated
and then tighten the
case
screws.
f. Age the replacement lamp by operating the instru-
ment for a minimum of one hour.
KNOB AND DIAL REMOVAL.
Use the following procedure to remove the FLASH
RATE knob and dial
:
a. Turn the knob ccw until the last mark on the low end
of the dial aligns with the white mark on the case.
b. Grasp the knob firmly with the fingers close to the
case
and pull the knob straight away from the{;ase- don't
attempt to pry it
off.
c.
Remove the knob bushing by loosening the bushing
setscrew with a
3/32-in.
Allen wrench.
NOTE
To separate the bushing from the knob, if they
should remain
combined
when the knob is re-
moved, drive a machine tap a turn or two into
the bushing to provide sufficient grip for easy
separation.
d.
Recheck the dial alignment and remove the dial by
loosening its
setscrew.
KNOB AND DIAL INSTALLATION.
To install a knob and dial assembly:
a. Place the dial on the larger shaft and align the marks
mentioned in the removal procedure.
b. Tighten the dial
setscrew.
c.
Mount the knob bushing on the smaller shaft,
keeping
the end of the shaft flush with the outer surface of the
bushing; tighten the
setscrew.
NOTE
If the end of the shaft protrudes through the
bushing, the knob cannot seat properly.
d. Place the knob on the bushing with the retention
spring opposite the setscrew.
e.
Push the knob in until it bottoms and pull it slightly
to check that the retention spring is seated in the groove in
the
bushing.
NOTE
If the retention spring in the knob is
_
loose,
reinstall it in the interior notch with the small
slit in the inner diameter of the wall.
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