Digital BW, The Print

Hi Terry,

After a couple of months, I did figure out the convert to profile method you mention and have been using that, exactly as you described. Unfortunately, my results are still lacking. Is there a way to diagnose a bad ICC profile? When soft-proofing, I preview back and forth between relative and perceptual, without simulate paper checked and the match is almost imperceptible. When I check the simulate paper box it becomes significantly worse. I know that this is supposed to happen, I am just wondering to what degree. To bring the original up to the soft-proof copy takes a lot more processing, at least for me. I have a very good eye and am somewhat of a stickler. I wish it was just a matter of increasing exposure, contrast and vibrance. But I also generally have to adjust some colors in the image.

I appreciate your effort in trying to help.

Jim


On Tuesday, October 28, 2014 6:53 PM, "Terry Ritz t.ritz@... [DigitalBlackandWhiteThePrint]" <DigitalBlackandWhiteThePrint@yahoogroups.com> wrote:
 


  


"James Petrillo wrote:


Great information. Thank you. I actually did a color calibration of the iPF6300 about two  months ago, so I think I am good there. You say that non Canon papers are not optimized fully in the Canon plug-in for the ABW equivalent, perhaps that is part of my problem here. Maybe the custom profiles made for me on the Epson papers are not going to give me good results across the board. I have not mentioned this, but I am having some trouble matching my color prints also. When soft-proofing I have to make significantly more changes than I think I should to more closely get a match. That being said, I have soft-proofed with the Canon RC photo paper equivalent and do not see any improvement. Can I safely say that because the Canon profile does the same thing that my Epson profile is good?


Lastly, from what I have read, it looks like QTR does not support Canon printers. Am I to assume that the QTR-Create-ICC utility will work with the Canon?
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Jim, I do almost all of my printing through the QTR Print program Roy wrote. I have not let PS manage the colour conversion since CS3. I use the Canon print plug-in occasionally, but I do the colour conversion manually and set the plug in to "No Color Correction" (Output Profile). The custom profiles for your Epson papers should be fine, assuming they were made correctly. Perhaps you are running into colour management issues. 

Try this. . . .  Use Edit/Convert To Profile in Photoshop to apply the profile for your printer to your image. Use the Adobe engine, Black Point Compensation and the rendering intent you prefer (Perceptual or Relative Colormetric normally) during the conversion. Then, take the image into the Canon print plug-in, set the Output Profile to "No Color Correction", and print as normal. Let us know how that turns out.

When I suggested you use QTR I was referring only to the profile creation component. The main body of QTR (the "RIP") will not work with anything but an Epson printer. The QTR-Create-ICC will work with anything. You print a 21 step wedge (included) using the Canon ABW equivalent. You measure that wedge with your spectro and feed the values into QTR-Create-ICC. The profile it creates will attempt to make your output linear, and If you were in the ballpark to start with it should nail it. You then apply this profile to each image as I've outlined above, just before you go into the Canon print plug-in to do your ABW-style printing.

Best,

Terry.