Barry, I use a densitometer to build curves for making digital negatives with peizo. While I don't have recomendations for densitometers I have done an excel spreadsheet that takes in densitometer readings from a printed step wedge, does the interpolation, and spits out values for a correction curve to linearize the steps. If anyone would like it to play with let me know. I started an attempt to produce a curve for the VM inks on my 1200 and EAM last weekend, though I didnt have time to get far it looked promising. The approach is to straighten the steps with the RGB curve alone, then get the toning by adjusting the individual inks + and - so the density stays constant but the color changes. Someone in here mentioned doing exactly that this week with success. A setup procedure for producing VM curves reliably with a minimum of iterations is the goal. If anyone else has time to work on this it would be great as my time is very limited. Larry > Hi All, > Is there anyone using Quad inks that uses a densitometer to > calibrate their system? If you do could you please let us know what > model densitometer you might use? I am using a windows XP system and > are considering the purchase of a X- rite densitometer. > I think that it would be a acurate way to set up the monitor and to > check the dot gain on my 3000. > Any comments? > > Barry > > > > Please visit the Group Homepage to check the Files, Bookmarks, Polls and other > resources as they are often being updated. The page is at: > > http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint > > Please follow these basic guidelines: > - Include your full name with your message. > - Include the address of your website, if you have one. > - As threads develop, trim off excess portions of earlier messages to keep them > short. > - As the topic of a thread changes remember to change the subject header. > - Good manners are required at all time. No personal attacks or "flames." > - Complete your Yahoo profile. > - Before posting a question, search the message archives and the various > resources on the homepage. > > > > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ > >
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Re: [Digital BW] Calibrating System?
2002-03-21 by lrryr@attbi.com
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