1980-07-28
1984-08-28
Perkey, William B.
G03B 1503
Patent
active
044681062
ABSTRACT:
In a camera system wherein a shutter is opened to expose a photographic sensitized film to light to record an image and the shutter is subsequently closed after a predetermined time and a flash device such as a flashbulb is actuated during the time the shutter is open, an electric timer is connected to be initiated by the opening of the shutter, and to the flash device for energizing the flash device after a predetermined time interval following the initiation of the timer by the opening of the shutter and before the shutter is closed. In taking a photograph of a moving object, the opening of the shutter while the camera is held steady exposes the film at a light value insufficient to produce a desired final exposure but sufficient to produce a blurred image, and the actuation of the flash device produces a clear stopped image, so that the effect of motion is achieved on the photograph.
REFERENCES:
patent: 3683769 (1972-08-01), Uchiyama et al.
Life Library of Photography, "Making A Still Picture Show Movement", vol. Special Problems, 1971, pp. 128-133.
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