Manually operated shutter attachment

A manually operated shutter attachment consisting essentially of:

• A. a pair of plate members each having an aperture therethrough of lesser width than the width of said plate members, and means securing said plate members in spaced parallel relationship with said apertures being aligned to provide a ligh passage through said shutter attachment;
• B. a manually movable blade member slidably disposed between said plate members and having a body portion registerable with said apertures of said plate members and a handle portion extending outwardly of said plate members for effecting manual movement of said body portion between a first position wherein said body registers with said apertures and a second position wherein said body portion is removed from registration with said apertures;
• C. means slidably mounting said blade member between said plate members for movement between said first and second position;
• D. a first mounting means on the outer surface of one of said plate members extending about the aperture thereof and adapted for securing said shutter attachment to a camera or the like;
• and
• E. a second mounting means on the outer surface of the other of said plate members extending about the aperture thereof and adapted for securing said shutter attachment to a telescope or the like, said attachment comprising an integrated independent assembly assemblable and removable as a unit from an associated telescope and camera.