This scale compensation always takes place, we don't have any choice, it is part of the color reproduction process. A point size that approximates a specific point size for use on the screen. It is important that both directions be scaled in order to ensure proper fit in the final reproduction. An electronic device used in making color separations. Originals are placed on drums, which are rotated, reproduce the original via digital and electronic signals transferred to the finished film size through fiber optics.
Scanners utilize electronic circuits to correct color, compress the tones and enhance the detail.
The screen angles differ from standard screen angles in that all angles have been advanced by 6 degrees. There are several reasons for doing this. The layout indicates the client wants it this way. In order to save money on film at the composite stage, all stripping is done RREU emulsions and duped to a final negative which is correctly oriented for platemaking. In lithography, it is necessary to rotate the angles of the screens in order to create a rosette pattern.