Instrukcja obs艂ugi Sekonic L-318B
Sekonic
Lichtmeter
L-318B
Przeczytaj poni偶ej 馃摉 instrukcj臋 obs艂ugi w j臋zyku polskim dla Sekonic L-318B (8 stron) w kategorii Lichtmeter. Ta instrukcja by艂a pomocna dla 8 os贸b i zosta艂a oceniona przez 2 u偶ytkownik贸w na 艣rednio 4.5 gwiazdek
Strona 1/8
PREPARING METER FOR OPERATION
correctly, Battery check: Place a battery in battery chamber
and switch the meter ON Then b.c. mark and bar symbols
are displayed for a second. Number of bar symbols shows degree of
battery capacity. If battery is weak to give correct readings, b.c. mark is
blinking or disappears. After checking battery the display is
automatically changed to measuring mode.
letting film speed: To set ISO sensitivity to the film you are using,
switch the meter ON and press either side of UP/DOWN key
while depressing ISO selecting key
Setting shutter speed: This meter is designed for T (shutter speed)
priority use. Therefore, shutter speed should be set first except the
meter is used in EV mode. By pressing either side of UP/DOWN key,
display of shutter speed is changed accordingly.
Selecting measuring mode: By pressing F/EV selecting key
measuring mode can be converted from F mode (combination of F-stop
and shutter speed is displayed) to EV mode (EV number is displayed),
or vice versa.
MEASUREMENT AND READ-OUT
Incident li
g
ht measurement
1. For measuring ambient light: Mount Lumisphere to swivel
head Switch the meter ON and point Lumisphere to
camera from the position where subject is to be measured.
Press measuring switch or
EV is displayed.
Then measured value of F-stop
2. For measuring illumination contrast: Mount Lumidisc
to swivel head. Switch the meter ON and point Lumidisc directly
toward center of main light. Press measuring switch in EV mode and
read-out the measured value.
In the same manner, read the EV number of fill-in light. Difference
between EV numbers of main and fill-in lights becomes contrast
ratio (refer to Table 1).
3. For measuring luminance (Lux): Set ISO sensitivity to ISO 100
regardless of your film speed. Place Lumidisc parallel with the
measured surface and read EV number in the same manner as for
other measurements.
As to Lux value corresponding to the measured EV number,
please refer to Table 2.
Reflected light measurement: Mount Lumigrid to swivel head.
Switch the meter ON and point Lumigrid directly toward part of subject
to be measured. Measure reflected light from main point of subject as
close as possible to the subject.
Use adequate care in this case that the meter shadow does not
interfere with the light to be measured.
Post-measurement calculation
1. Calculation dependent upon change of film speed can be
made by pressing either side of UP/DOWN key while depressing ISO
selecting key.
2. Calculation dependent upon change of shutter speed can be
made by pressing either side of UP/DOWN key only.
3. Conversion of measuring mode can be made by pressing F/EV
selecting key.
Measuring range: When measuring range is exceeded, F-stop or
EV number will be replaced E.o (error-over) or E.u (error-under) mark.
Measurement for movie camera: Procedure for taking measure-
ments when using movie camera is the same as for taking ambient light
measurements.
Specyfikacje produktu
| Marka: | Sekonic |
| Kategoria: | Lichtmeter |
| Model: | L-318B |
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