Sekonic Speedmaster L-858D-U Light Meter - Manual (Page 105)

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5. Measuring
5-3 HSS (High Speed Synchro) Flash Cordless Mode
Measures the HSS (High Speed Synchro) or FP flash.
NOTICE
The HSS flash can be measured in Cordless Mode only.
5-3-1 HSS (High Speed Synchro) Flash Cordless Mode
Select this mode to measure the brightness of a flash activated in HSS (High Speed
Synchro) Mode. Press the Measuring Button
6
without a meter-flash connection.
When the flash brightness is detected, the F-stop is measured for input shutter
speed and ISO sensitivity.
1) Measuring
Operation
1.
Touch the Measuring Mode Icon on the Measuring Screen.
The Measuring Mode Screen is displayed.
2.
Touch the icon ( ) on the Measuring Mode Screen.
When it is selected, the display changes to the Measuring Screen.
Measuring Screen Measuring Screen
[Measuring
Mode] Icon
Measuring Mode Screen