Camera system having a flash device capable of performing a high

Details Camera system having a flash device capable of performing a high Camera system having a flash device capable of performing a high

1997-02-18

1999-01-12

Adams, Russell

Photography

Flash system responsive to focal length or distance

396108, 396164, G03B 1502, G03B 1503

Patent

active

058600299

ABSTRACT:
A camera system includes a camera device and a flash device. The camera device has a first mode where a control aperture value and a control shutter speed are automatically determined; and a second mode where the operator is allowed to determine either a control aperture value or a control shutter speed. The flash device is capable of emitting an instantaneous flash light and a prolonged flash light. The camera device includes a distance calculator operable to calculate a distance to an object and a light intensity calculator operable to calculate an intensity of a prolonged flash light for flash photography based on the calculated distance, a focal plane shutter having a front blind and a rear blind, and a controller operable to render the flash device emit a prolonged flash light at the calculated intensity from the start of travel of the front blind to the finish of travel of the rear blind.

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