Perfecting Proofing

The main benefit of the G7 specification is that it produces a more visually consistent printed appearance—with calibration curves alone—than can be achieved with traditional dot-based calibration methods. The simple explanation for this is that dot size alone is not a reliable indicator of visual appearance, because it doesn't consider other factors like ink hue, ink film thickness, and trapping. With G7, widely different printing processes can share not only common gray balance, but also common tonal contrast and image weight, regardless of paper type, ink quantity, screening type, or imaging technology. This "shared appearance" concept offers a significant new default compatibility benefit when exchanging files between different imaging systems. G7 is currently being applied to many types of printing including commercial and publication printing, newsprint, and even flexo and gravure.