Thursday, February 2, 2012

From @xeroxproduction Taking the Mystery Out of G7®

Many print professionals have heard of G7 but are not exactly sure what it is.  So, what exactly isG7? G7 is an IDEAlliance registered trademark – “G” for its focus on the color gray and the “7” ink solids specified in ISO 12647-2. It is a gray scale specification AND a calibration method that has roots in offset. The main goal of a production G7 press run is to match an accurate G7 proof. It’s a specification that provides formal colorimetric definitions for neutrality (gray balance) and tonality (darkness, lightness, and contrast of an image). Plus, it is also a calibration method that adjusts gray balance and tonality to meet the G7 specification.

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