Sekonic L-398 - Page 3

CONTENTS
FEATURES
Nearly
all
photographic
subjects
combine
complex
variations of
strongly
reflecting
surfaces
(high
reflectivity) and
weakly
ref lecting
surfaces
(low
reflectivity).
These
variations
delicately
influence ex-
posure
determination
and
to
which
portion
the
exposure
is
set
becomes
a
vital
factor that
considerably
affects
the appearance
of
the
f inished
photograph.
Although
risk of
failure can be
minimized by
taking
maximum and
minimum
readings
of all
portions
of
the subject,
then averaging
the
values,
such an
approach
is
both
time
consuming
and
tedious.
The
Studio
Deluxe
is
the answer
to this
problem.
lt is
designed
around
a
standard
reflectivity
of
'lB%,
which
has
been
derived
through
measurements
of
various
subjects throughout
the seasons
of the
yea
r.
Consequently,
high
effectiveness
is
displayed
with subjects
possess'
ing
ref
lectivities
in
the
neighborhood
of
'l8o/o
(people,
buildings,
etc.)
and
when this
can be
considered
the
average
value
(street
snapshots,
trees,
forest scenes,
etc.).
1. Optimum
exposure
meter
for incident
light measuring
method
(also
applicable
for reflected
light
method)'
2,
Freely
rotatable
light sensor section
for
very easi
ly
performed
measurements.
3.
Meter stopper
mechanism
allows
operation
while
hand is released
from meter.
Meter
release
mechanism
is
also
included which allows
the
needle
to
def
lect
f reely. This
provides greater
conven
ience when
determining
light balance.
Lumisphere
detects
the same
light
as
strikes
the subject.
Since
subjects
are
normally
3-dimensional,
according
to
the
lighting
conditions,
brighter
surf aces
(highlights)
and darker
surfaces
(shadows)
are
produced
(illumination
contrast).
The
Studio
Deluxe
mechanism
automatically
takes
into account
the strength
of
light
from
all directions,
causing
the
meter to
indicate a
value
applicable
to
photography.
lt
is
thus
most convenient
for
determining
typical
exposures.
2
Specif
ications
Part
Designations
Accessories
Basic
Operation of
Meter
Unit
7
1.
Stopper Button Operation
7
.
2.
Zero Position
Check
and
Adjustm€rt
.......,.
7
Standard Accessory Operation
I
Incident Light Measurement
8
1. Lumisphere
B
2. Lumidisc 11
Ref lected Light Measurement
""""'12
1. Lumigrid 12
Other Operations
........"13
1. Exposure Value
(EV
number)
Readout
"""'13
2.
Employing
Cine Scale
""""""""'14
3.
Using Exposure Multipliers
(x1
12,
x2, x4)..'
15
Employing
Special
Accessories
""""""'
15
1.
Direct Reading
Slides
""""""""
15
2. Direct
Reading
Slide
Application
""""""""'16
Measurement Examples
with Various
Subjects
.......
17
1.
Portrait Photography""""""""""""""""""'
17
2. Typical Scenery
"""'18
3.
Observatorial Scenes
""""""""""""""""""
18
4.
Snow Scenes
"""""'2O
5. Scenes
with
Side
or
Back
Lighting
""..".......
21
6. Silhouette
Photography
"""..."'........'........'.
22
Applications Summary
.....
23
1. Special Features of
the Studio
Deluxe
'........23
2. f lf umination
Contrast
"..'.'......'.24
3.
Ref lected
Light
Measurement
...-....-............
26
4. f llumination
Adjustment
........'.'..................
29
5.
Closeups
""""""""
31
Handling
Cautions
."."...'..34
4
5
6
I
4.
5.
l*,. ,s -1.."*. ;
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