Eliminating camera-shake
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United States of America Patent
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-
Dec 8, 1992
Issued Date -
N/A
app pub date -
Sep 25, 1990
filing date -
Apr 25, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An exposure control device of a camera by which an appropriate camera-shake limit shutter speed T.sub.vf can be obtained in accordance with a focal length f of a photographing lens, and by which an arbitrary program diagram can be set on the basis of the shutter speed T.sub.vf, in which T.sub.vf is obtained by an equation: T.sub.vf =log.sub.2 f, or T.sub.vf =(log.sub.2 f).multidot..alpha.+.beta.; wherein .alpha.<1, and .alpha. and .beta. are constants which satisfy log.sub.2 f.sub.o =(log.sub.2 f.sub.o).multidot..alpha.+.beta. for a predetermined arbitrary focal length f.sub.o.
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Cited Art Landscape
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