Sekonic Speedmaster L-858D-U Light Meter - Manual (Page 87)

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5. Measuring
5-2 Measuring in Flash Light Mode
Flash illumination is light that is produced by the very brief light pulse of an
electronic flash unit or flash bulb. Flash measurement is available in the following
modes:
● Cordless Flash Mode
● Cordless Multi (Cumulative) Flash Mode
● Cord (PC) Flash Mode
● Cord Multi (Cumulative) Flash Mode
● Radio Triggering Flash Mode *Available when a transmitter (sold separately) is
installed
● Radio Triggering Multi (Cumulative) Flash Mode *Available when a transmitter (sold
separately) is installed
Screen Display Details
When flash light is measured, f-stop (Ambient brightness + Flash brightness = total
exposure) is displayed on the screen.
The ratio of flash light to the total exposure is displayed in steps of 10%.
The analog scale displays the ambient component (orange line) and flash component (blue
line).
Example: As shown in the screen below, if the shutter speed is 1/125s and ISO
sensitivity is 100, the flash component and ambient light component will be
50%, respectively. The analog scale displays the measured value of both the
flash component (blue) and the ambient component (orange), and the photo
becomes a little yellowish if the tungsten light is used as the ambient light.
Measuring Screen example in
Cordless Flash Mode
Viewfinder Display
(in reflected light
measurement)
Setting Value
Flash
Component
Measured
Values
Analog Scale
Ambient Light
(Orange)
Flash Light
(Blue)