G7 Summit: After The Honeymoon
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The document discusses challenges that can arise when implementing G7 color management. It notes that initial excitement about G7 can fade when difficulties emerge, just as in marriage, and lists some common attitude and practice obstacles encountered. These include running to a visual proof match before hitting accurate numbers, adjusting densities without communication, and expecting one curve to work for multiple conditions. It acknowledges that while G7 aims for consistency, some flexibility is still required in the real world. Overall the document provides an overview of challenges in transitioning to G7 and maintaining successful implementation.
G7 Summit: After The Honeymoon
- 1. G7 After the Honeymoon G Moderator: Glenn Andrews, Schawk Panelists: Matt Fehn, La Crosse Litho Supply, Joe Tirschfield, Sandy Alexander, Larry Warter, Fuji, Rich Apollo, OK Offset, David Piccus, Piccus4Color
- 2. G7-A Lot Like Marriage Infatuation Parents may disapprove ..or maybe it¨s a a shotgun wedding Absolute bliss, even if you don¨t quite know what you¨re doing yet
- 3. G7-A Lot Like Marriage ´´A production plant and an idea ´´Pre-press and press
- 4. But even Great 京艶乙庄稼稼庄稼乙壊´´´.
- 5. ´´ can fade when things get tough
- 6. G7-Printing 101+ Traditional printing-with a focus on graybalance Used on original SWOP press run-a year before ISO12647
- 7. But G7 is Mainly About Communication Meaningful metrics understandable by prep and press Diagnostic tool for changing conditions Feedback system allowing continual improvement Move From Blaming to Solving
- 8. What Are the Attitude Obstacles? ＾ It¨s a nice little theory, but now we have real work to do￣ ＾ It¨s a short run-we don¨t have time to get to the numbers ￣ ＾ We need to match it visually ￣ ＾ I can¨t match this proof-the dots aren¨t the same ￣ ＾ Shouldn¨t we be making the proof match our press? ￣ ＾ This can¨t work, there are too many variables ￣ ＾ G7 is fine but we¨re doing ultra-premium work￣ ＾ We never had to do all this before￣
- 9. What Are the Daily Practice Obstacles? Running to a visual proof match before hitting accurate numbers Running to non-G7 profs Adjusting densities for changing conditions without communicating to pre-press ＾ Yeah, we¨re to the numbers￣ Expecting a single curve adjustment to work for multiple conditions Ignoring the influence of paper characteristics
- 10. Theory and Practice Traditional pressmen will insist these two images will require very different gray balance measurements G7 Purists will insist that both images require exactly the same gray balance The truth may lie a little bit in between
- 11. Fine Adjustment Curve Sets -1% -2% -3% -4% -5% +1% +2% +3% +4% +5%
- 13. It Can Seem Like Rocket Science
- 14. ´ But We Live in an Imperfect World Even Galileo's theories about gravity were not immune to skeptics Like the famous Pisa experiment, G7 works perfectly-most of the time
Editor's Notes
- I had wanted to do a panel on the challenge of keeping the G7 experience successful long term. When Dianne suggested the title G7 After the honeymoon I was taken by the correctness of the analoghy
- G7 really is something like a marriage
- There is a technical aspect to G7-quite a bit, in fact, and this technical conference is covering some of the most advanced ones. In a marriage, people can go pretty far just doing what comes naturally´.for a while
- But when the consultant has gone home and press matches begin to look a little less impressive than those first ＾G7 Certified￣ sheets, what do we what do you do?
- In a marriage, people can go pretty far just doing what comes naturally´.for a while It works in the pressroom to, because after all, G7 is fundamentally based on what a press tends to do naturally.
- G7, along with the traditional metrics of density, dot gain, print contrast and overprint, functions as a communications device, alerting all concerned to changes in the process that may affect press to proof match, and providing a clear diagnostic path to correct the situation. First, everyone has to be involved-this is a collaboration, after all. This really means everyone-prep, press, sales and management. Sales needs to understand why the pressroom will no longer run to non-G7 proofs, and why the dots on the proof may not match the dots on the proof. The pressroom must do their best to maintain stability in their process, and quickly communicate any inevitable changes to prep, rather than trying too hard to muscle their way to a match when press conditions have shifted. Prep must take the opportunity to treat every press run as a mini-characterization run-tracking small changes and making compensations as trends develop. And management needs to support the enterprise by encouraging all involved to do their part to make it work.