Camera with pivoting blades

A pivoting exposure control system for photographic apparatus comprising:

• means defining a light entering exposure opening having an optical axis therethrough;
• at least one blade element having an aperture therethrough disposed about a curvilinear centerline for respectively blocking and unblocking the passage of light through said light entering exposure opening;
• means for mounting said blade element in a manner whereby both linear and angular displacement of said blade element with respect to a first reference point spaced laterally apart from said light entering opening can be accommodate;
• and
• means for selectively rotating at least one point on said shutter blade element about a second fixed reference point spaced laterally apart from said light entering exposure opening and first reference point so as to cause said shutter blade element to pivot with respect to said first reference point while simultaneously moving linearly across said first reference point in a manner whereby the curvilinear centerline continuously intersects said optical axis.