Message
Re: Help with RIP
2017-05-21 by sanking@...
I am not sure where you got the values you placed in Richard's spread sheet? The Ink Levels in the QTR profile I posted should give a negative density range of about log 2.35 when the blocking inks are set to PK=15, C=20, Y=25 and LK=35. You changed those values a bit, but certainly not anywhere near enough to come up with a Dmax of 0.73.
The input/output values you provided, which seem to be based on Ron Reeder's method of creating a curve, suggest that you are not too far off in the density range of the negative and in exposure time. I would suggest for your next text to just increase the Ink Level of the four blocking inks about 10%-20% each.
Sandy
My d max appears to be very low and I am not sure what to do about that.
Is this the right path?
THe other issue is having followed sandys text file, there is no grey_curve, but a CURVE_K="0;0 100;100" line. is this where the output should go? I am sorry if these are very basic questions with regards to this software.
Babak