Electronic flash unit for use as slave-flash unit for digital camera, has data storage in which central basic setting of flash exposure is stored, where setting can be changed by correction values, and saved and recalled again at any time

摘要

The unit has a non-volatile data storage in which a central basic setting of flash exposure is stored. The setting is changeable in an automatic-flash operation by an input of positive correction values to dark flash light photos, and negative correction values to bright flash light photos until a flash exposure is reached. The setting changed by the correction values can be saved and recalled again at any time.