High speed camera shutter

A high speed camera shutter comprising first and second asymmetric substantially planar shutter plates arranged in tandem, a first and second groove means corresonding respectively to said first and second shutter plates, each of said first and second shutter plates being longitudinally slidable between first and second positions in said respective first and second groove means along respective pairs of substantially opposed points of each of said first and second shutter plates, said first shutter plate having a substantially circular aperture therein for defining an exposure clearance area, said second shutter plate having a substantially semicircular recess in the perimeter thereof for concomitantly defining an exposure clearance area therein, said exposure clearance areas of said first and second shutter plates being substantially alignable for defining a shutter opening when said first and second shutter plates are respectively in their second positions, a pivotally mounted rocker lever oscillatable on its pivotal axis including first and second lever arms, said first lever arm thereof having a longer length relative to the pivotal axis of said rocker lever than said second lever arm so as to optimize said shutter opening when said first and second shutter plates are respectively in their second positions, said first shutter plate being pivotally connected to a remote end of said first rocker lever arm, said second shutter plate being pivotally connected to a corresponding remote end of said second rocker lever arm, said first and second shutter plates being longitudinally slidable in response to a pivoting movement of said rocker lever in said respective first and second groove means, and mechanical means for osciallating said rocker lever for thereby sliding said first and second shutter plates in their respective first and second groove means between their respective first and second positions thereof.