|Overall Size||0.63 in. x 0.63 in. - 16mm x 16mm|
|Resolution||1.0 to 10.0 cy/mm|
The top and low rows contain the gray scales, from 0.20 to 1.20 densities, and the two inner rows contain the sinusoidal area areas ranging in frequency from 1.0 to 10.0 cycles per mm, having a nominal modulation of 60%.