Sekonic Speedmaster L-858D-U Light Meter User Manual
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5. Measuring
8.
Trigger the flash unit manually while the Measuring Mode Icon (
)
is blinking.
When the flash light is detected, the measurement is made automatically and the
measured value (F-stop) will be displayed.
Measuring Screen
Flash Duration Time
Flash Component
Measured Value
(F-stop)
NOTICE
● The flash duration time and graph are displayed in the Flash Duration Analysis
Mode, however, they cannot be stored in the memory.
They are cleared if the Measuring Mode is changed or the POWER switch is turned OFF.
●
The incident light measurement can only be used in Flash Duration Analysis Mode.
● During 90 Seconds Standby Mode, the meter receives and measure the flash light
only once, and does not enter the Standby Mode. Repeat the procedure 7. and 8.
above to measure again and manually trigger the flash units.
●
In case of the following, please follow "5-4-2 Flash Duration Analysis Code Mode".
-
When firing the flash, if the flash brightness is lower than the ambient light, the
meter may fail to detect the light.
-
Rapid start fluorescent lamps and special lighting are sometimes mistaken for
flash and accidentally measured.
-
Even if the flash is not fired, when a sudden light change occurs in the light
receptor, measurement may be made.
-
The waveform of a flash bulb has a slight slope and there is a possibility that the
light meter cannot recognize the flash bulb in Cordless Flash Mode.