This pinhole camera/aquatint chamber was constructed in March of 1999.  The camera was configured utilizing optimum pinhole dimensions, when the diameter of the pinhole is just equal to the diameter of the diffraction image.  This occurs when D=f/1000D, where D is the pinhole diameter in millimeters and f is the focal length between the pinhole and the film plane.  This camera has a focal length of 305mm, and hence a pinhole diameter of 0.52mm, and an F-number of 581.  Medium format film may be loaded directly into copper grooves embedded in the light-tight film/plate drawer.  When shaken, the chamber may be suspended with a cloud of powdered rosin particles suitable for laying extremely fine grounds on intaglio printing plates.