Check for screen angles and line ruling in one quick easy step!
This handy measuring devise will quickly and accurately determine both the line and angle of each color. Place the screen angle and line determiner on an offset print and a series of concentric circles appear. The lines that intersect these circles will indicate the angles and line of the screens used. Ever need to quickly determine which separation negative you were stripping? If used on a single separation film, only once circle will appear, indicating you negative.