Sekonic L-398 - BASIC OPERATION OF METER UNIT; Stopper Button Operation; Zero Position Check and Adjustment

BASIC
OPERATION
OF METER
UNIT
1.
Stopper Button
Operation
lf
the stopper
button
@
is
press-
ed
when the
stopper
button
mark
@
is
set
to
Q
,
the meter needle
@
deflects
according
to
bright-
ness.
Then
when
the
button is
released,
the needle
remains
fixed
at the
indicated
position.
By holding
the
stopper
button
depressed and turning it
clockwise
so that the mark
position
becomes
Q
,
the needle
is released.
At this time,
the meter
will
de-
flect
freely
even if
the
stopper
button is released.
To
fix
the
needle,
turn
the
stopper
button
counter-clockwise
to where the
mark is
positioned
e
2. Zero Position
Check
and
Adjustment
With stopper
button
in
released
O
position,
cover light
sensor
with hand
or
black
cloth to com-
pletely
block
light.
Check that
meter needle
@
correctly indi-
cates zero
position.
lf
the indi-
cation deviates
from
zero,
while
observing meter
indication,
use
a
coin or
similar
tool
to turn the
rear
zero
adjust
screw
@
and
adjust
for
zero
indication.
b.
STANDARD ACCESSORY
OPERATION
Incident Light Measurement
1.
Lumisphere
a.
Mount
Lumisphere
@
to
light
sensor
@
.
To mount,
align
white
dots
of Lumisphere
frame
and
light
sensor, then
turn
Lumisphere
caref ully
clockwise
to secure.
Set
film
sensitivity knob
@
to sensitivity
value
of
employ-
ed
film.
Set ASA value
to
right
side ASA
mark
@
and
DIN
value
to
left
side
DIN mark
@
. Photo
shows
setting
for
ASA
100
(DrN
21).
From
position
where
subject
is
to be measured,
point
Lumi-
sphere
O
in
direction of
camera.
(Light
sensor
@
can
be turned freely.)
Hold
meter erect
and
press
stopper. button
@
Meter
needle
@
deflects according
to
brightness. When
the stop-
per
button
is
released, the
meter
needle
becomes
f
ixed
at
the
deflected
position.
lf the
location
is
excessively
bright
and the meter
needle
deflects
beyond
scale,
insert
the
High
slide
@
.
d.
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