| http://www.w3.org/ns/prov#value | - Therefore, even if there is an error in the subject distance which is used for determining of the amount of radiation light, the error is always on the shorter side, thus, the amount of radiation light for electronic flash is small, and overexposure can be controlled. [0078] The invention has been explained above, referring to the embodiments, to which, however, the invention is not limited, and m
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