Photography – With object illumination for exposure – Having preexposure illumination
Patent
1999-02-05
2000-04-04
Adams, Russell
Photography
With object illumination for exposure
Having preexposure illumination
396157, G03B 1503
Patent
active
060471387
ABSTRACT:
A camera comprising an electronic flash unit capable of providing a pre-flash light emission for reducing a common phenomenon known as the red-eye effect and a main flash light emission for illuminating a subject during a flash assisted exposure, and a control connected to the electronic flash unit for making a judgement based on the subject brightness and the camera-to-subject distance to cause the electronic flash unit to omit the pre-flash light emission when a flash assisted exposure is to be made, is characterized in that the control is adapted to cause the electronic flash unit to omit the pre-flash light emission when the subject brightness is low enough for the red-eye effect to occur, but the camera-to-subject distance is greater than a maximum distance beyond which the pre-flash light emission is inadequate to reduce the red-eye effect.
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Adams Russell
Eastman Kodak Company
Fields Roger A.
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