Sekonic Speedmaster L-858D-U Light Meter - Manual (Page 95)

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5. Measuring
7.
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) is displayed. Repeat triggering the flash unit until the
desired F-stop is displayed during the Standby Mode.
Measuring Screen
Flash Component
Measured Value
(F-stop)
NOTICE
● In case of the following, please follow "5-2-4 Cord Multi (Cumulative) Flash Mode ".
(  P87)
- When firing the flash, if the flash brightness is significantly 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
● The EV scale cannot be displayed in this Measuring Mode.
NOTE
● In the Cordless Multiple (Cumulative) Flash Mode, the backlight of the LCD screen dims
and is only illuminated for three seconds after measurement.
● After the measurement, the meter enters the 90-second Standby Mode again. If you
need to measure again, fire the flash during this time.
● If the measured values are stored in the memory, the Measurement Standby Mode is
canceled.
● If the icon stops blinking before the flash fires, repeat Steps 6 and 7.
● To stop the Standby Mode, just touch the screen.
● It is convenient to set the light meter in a fixed position during the measuring time. This
can be accomplished by mounting the meter on a tripod or stand using the tripod socket
on the bottom of the meter.