Master flash apparatus and method
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United States of America Patent
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Dec 20, 2016
Grant Date -
Jul 9, 2015
app pub date -
Jan 2, 2015
filing date -
Jan 7, 2014
priority date (Note) -
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Abstract
A master flash apparatus which emits light when an image capturing device outputs a synchronous light emission command after the image capturing device outputs a first light emission start command. The apparatus can perform wireless communication with a slave flash apparatus which emits light in response to a second light emission start command received from the master flash apparatus. A transmission unit transmits the second light emission start command to the slave flash apparatus when a predetermined time has elapsed after the image capturing device outputs the first light emission start command. A measurement unit measures a time from the output of the first light emission start command from the image capturing device to the output of the synchronous light emission command from the image capturing device. An adjustment unit adjusts the predetermined time based on the time measured by the measurement unit.
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