ABSTRACT
When films are printed on a single roll of edited original, a small white flash can sometimes be noticed where emulsion has beert removed at joins. With checkerboard assemblies this flash can be eliminated. By using black leader between the shots and by overlapping the join in the direction of the leader which parallels the following shot on the opposite roll the white flash can be lost altogether, in the checkerboard system original and black spacing are assembled alternately on alternate rolls.
