These silver-density step wedges are useful in a variety of sensitometric or densitometric applications. Used for making color prints from Kodachrome and Ektachrome transparencies when a gray scale is not included in the scene. Can also be used in making internegatives with Kodak Commercial Internegative Film. Calibrated. Steps: 21 Step Width: 5mm Density Range: 0.05 - 3.05 Density Increments: 0.15 Tinted Area: 1 x 4-1/8" Finished Size: 1 x 5-1/2"