Sekonic Speedmaster L-858D-U Light Meter - Manual (Page 59)

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4. Basic Operations
b
Radio Triggering Multi (Cumulative) Flash Mode
Detects and accumulate flash brightness after Measuring Button is pressed
to send radio transmitted signal to radio receiver connected to flash. Displays
F-stop value for input shutter speed and ISO sensitivity (When a transmitter
sold separately is installed). (  P90)
Measuring Mode: HSS Mode (  P174)
No. Icon Description
c
HSS (High Speed Synchro) Flash Cordless Mode
Select this mode to measure the brightness of a flash activated in HSS (High
Speed Synchro) Flash Mode. Detects flash brightness without meter-flash
connection after Measuring Button pressed to arm meter for 90 seconds and
flash fired separately, and displays F-stop value for input shutter speed and
ISO sensitivity. (  P91)
Measuring Mode: Flash Duration Analysis Mode (  P176)
No. Icon Description
d
Flash Duration Analysis Cordless Mode
Detects flash brightness without meter-flash connection after Measuring Button
pressed to arm meter for 90 seconds and flash fired separately, and displays
flash duration time, graph of flash waveform and F-stop value for input shutter
speed and ISO sensitivity. (  P95)
e
Flash Duration Analysis Cord Mode
Detects flash brightness with synchro cord meter- flash connection, and
displays flash duration time, graph of flash waveform and F-stop value for input
shutter speed and ISO sensitivity. (  P102)
f
Flash Duration Analysis Radio Triggering Mode
Detects flash brightness after Measuring Button is pressed to send radio
transmitted signal to radio receiver connected to flash. Displays flash duration
time, graph of flash waveform and F-stop value for input shutter speed and ISO
sensitivity (When a transmitter sold separately is installed). (  P107)
NOTE
Flash refers to momentary light such as that produced by a flashlight or flash bulb.