QTR-Quadtone RIP

What does one have to do or study to be able to understand Roy's email. I do not have the vocabulary or experience to fathom what the heck is being discussed. Now I know how my students feel when I am explaining photosynthesis.
   
  Also, does one have to know, understand and implement the inf. in the email to get good black and white prints with QTR 3K inkset on the R1800. 
   
  Maybe someday I will understand all of this.
  happy new year and thanks.
  Frank in NJ
   
  Roy Harrington wrote:
  I've got a new version of Create-ICC that might help in this.

Download: http://www.quadtone rip.com/QTR- Create-ICC- BPC.exe

This maps black to black on both directions of the profile. What this gives
up

is soft-proofing with Simulate Ink Black. The benefit though is my tests
with

Photoshop show identical results for all combinations of Perceptual &
Relative

Intent and BPB on or off and with different CMSs on the Mac.

I'm interested in any findings you guys get. I highly recommend using a
21step

wedge to do this. Cut out just the steps so you have a perfect comb in the
histogram.

Then you can see if the results are the same. (+/- 1 level is OK). With PS
I used 16bit

and the histo-results were 100% identical. I'd also go with a simple made
up custom

profile such as "20 96" which shows significant movement in the histo.

Roy

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"The luckiest dogs are those with clipped tails....they're the ones who won't be chasing their own arses."
       
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