| 摘要 |
In the present invention, slave light emissions are controlled in such a manner that a flash light amount ratio between master and slave flash lights during pre-flash is caused to be approximately equal to a flash light amount ratio between master and slave flash lights during main flash. In another aspect of the present invention, the slave light emissions are controlled in such a manner that a flash time ratio between master and slave flash lights during pre-flash is caused to be approximately equal to a flash time ratio between master and slave flash lights during main flash. Such a control over the slave light emissions realizes a flash illumination having an appropriate amount of light.
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