A synchronizer is provided to establish a mechanical switching interface between an electronic digital color camera and {TAIL ~ a fundus camera} for appropriately coordinating the complete opening of the color camera shutter with the energization of fundus camera flash unit, and for fully disconnecting the flash unit at the completion of {HEAD ~ an image capture sequence} thereby enabling resetting of the flash unit 
A synchronizer is provided to establish a mechanical switching interface between an electronic digital color camera and { TAIL ~ a fundus camera } for appropriately coordinating the complete opening of the color camera shutter with the energization of fundus camera flash unit , and for fully disconnecting the flash unit at the completion of { HEAD ~ an image capture sequence } thereby enabling resetting of the flash unit
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