Sekonic L-398M Bedienungsanleitung
SEKONIC
STUDIO DELUXE II L-398M
Operating Instructions
Features........................................................................................................2
Specifications................................................................................................4
Part Designations.........................................................................................5
Accessories..................................................................................................6
Basic Operation of Meter Unit.....................................................................7
1. Stopper Button Operation.............................................................7
2. Zero Position Check and Adjustment...........................................7
Standard Accessory Operation....................................................................8
Incident Light Measurement.........................................................................8
1. Lumisphere......................................................................................8
2. Lumidisc..........................................................................................11
Reflected 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(-2,-1,+1,+2) .....................................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.TypicalScenery .............................................................................18
3. Observatorial Scenes....................................................................18
4. Snow Scenes..................................................................................20
5. Scenes with Side or Back Lighting ...............................................21
6. Silhouette Photography.................................................................22
Applications Summary..................................................................................23
1. Special Features of the Studio Deluxe ...........................................23
2. Illumination Contrast.......................................................................24
3. Reflected Light Measurement........................................................26
4. Illumination Adjustment....................................................................29
5. Close-ups.........................................................................................31
Handling Cautions........................................................................................34
Nearly all photographic subjects combine complex variations of strongly reflecting
surfaces (high reflectivity) and weakly reflecting surfaces (low reflectivity). These
variations delicately influence exposure determination and to which portion the exposure is
set becomes a vital factor that considerably affects the appearance of the finished
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 II is the answer to this problem. It is designed
around a standard reflectivity of 18%, which has been derived through measurements of
various subjects throughout the seasons of the year.
Consequently, high effectiveness is displayed with subjects possessing reflectivities in the
neighborhood of 18% (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 easily performed measurements.
3. Meter stopper mechanism allows operation while hand is released from meter.
4. Meter release mechanism is also included which allows the needle to deflect freely.
This provides greater convenience when determining light balance.
5. Memo pointer enables easier light balance setting.
6. Lumisphere detects the same light as strikes the subject. Since subjects are normally
3-dimensional, according to the lighting conditions, brighter surfaces (highlights) and
darker surfaces (shadows) are produced (illumination contrast). The Studio Deluxe II
mechanism automatically takes into account the strength of light from all directions,
causing the meter to indicate a value applicable to photography. It is thus most
convenient for determining typical exposures.
2
7. After combining film sensitivity and shutter speed, direct reading slides
(optional) can be used for directly determining the aperture value.
8. Selenium photocell is employed as light sensing element, eliminating need for
battery.
9. Wide selection of available accessories allows numerous photographic
techniques to be enjoyed.
3
Measuring System Incident light (reflected light system
also capable)
Measuring Range At ISO 100, EV 4-17
Measuring Accuracy Within ± 0.3 EV (1/3f stop)
ISO Scale 6 -12000
Shutter Scale 60 -1 /8000 second
Aperture Scale 0.7-128
Cine Scale 8 fps -128 fps
EV Scale 1 20 (exposure value)
Calibration Constant C = 340 K = 1 2.5
Dimensions 112 x 58 x 34 mm
Weight Approx. 190 grams
(NOTE) The outlooks and specifications described in this booklet shall be
changed without pre-advice, if necessary.
4
PART DESIGNATIONS
Fror’
pointer
xopper
button mat
Lumlsphera
Light sensorm
1
Footcandle scale
,;nrirlan+ linb.+\ P \
Aperture value -1
(for direct reading) @
___ ---. - w ,
wne scale 44 I
-
A -__...“^ ^^^I^ /-
Rear
5
Meter
scale
Dial
scale
Lumisphere
Lumidisc
Lumigrid
Total of 11 direct reading slides (set of 11
slides in case). e;
Optional Accessories
(sold separately).
Direct reading slides.
High (H) slide
1. Stopper Button Operation
If the stopper button
is press-
ed when the stopper button mark
is set to
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
the needle is released.
At this time, the meter will deflect freely
even if the stopper button is released. To
fix the needle, turn the stopper button
counter-clockwise to where the
mark is positioned
With stopper button in released
position, cover light sensor
with hand or black cloth to completely
block light. Check that
meter needle
correctly indi-
cates zero position. If the indication
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.
Incident Light Measurement
8
1. Lumisphere
a. Mount Lumisphere
sensor
To
white dots of Lumisphere frame and light
sensor, then turn Lumisphere carefully
clockwise to secure.
b. Set film sensitivity knob
to sensitivity value of employed film. Set
ISO value to right
side ISO mark
Photo shows setting for ISO 100.
c. From position where subject is
to be measured, point Lumi-
sphere
in direction of
camera. (Light sensor
be turned freely.)
d. Hold meter erect and press
stopper button Meter
needle
deflects according
to brightness. When the stopper button is
released, the meter needle becomes fixed
at the deflected position. If the location is
excessively bright and the meter needle
deflects beyond scale, insert the High
slide
e. Read the footcandle indication
of the meter needle.
f. Transfer footcandle value to
the dial scale
dial ring and set the
scale mark. If the High slide
has been inserted, set the
mark.
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Dieses Handbuch passt für folgende Modelle
1
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