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2010-02-18 by mozar94
Hi, I started printing on Hahnmühle Photo Rag, with P. Roark's profiles. Great results indeed. Now, I would like to try on Hahnmühle Bamboo, and perhaps one baryta as well (Hahnmühle Fine Art Baryta or Photo Rag Baryta). To make the profile for those papers, is it worth starting the job from scratch or can one just linearize from the PhotoRag profile? This should help to save sheets... Thx
2010-02-18 by met.graphix
I like to start from scratch. I've found that the default ink limits can be substantially different for different papers. For example, I think I use 75% on HPR and 50% on Red River aurora nat. Dario --- In QuadtoneRIP@yahoogroups.com, "mozar94" <sylvain@...> wrote:
> > Hi, > > I started printing on Hahnmühle Photo Rag, with P. Roark's profiles. Great results indeed. > Now, I would like to try on Hahnmühle Bamboo, and perhaps one baryta as well (Hahnmühle Fine Art Baryta or Photo Rag Baryta). > > To make the profile for those papers, is it worth starting the job from scratch or can one just linearize from the PhotoRag profile? This should help to save sheets... > > Thx >
2010-02-18 by pr_roark
"mozar94" <sylvain@...> wrote: > I started printing on Hahnmühle Photo Rag, with P. Roark's > profiles. Great results indeed. > Now, I would like to try on Hahnmühle Bamboo, and perhaps > one baryta as well (Hahnmühle Fine Art Baryta or Photo Rag Baryta). > > To make the profile for those papers, is it worth starting > the job from scratch or can one just linearize from the > PhotoRag profile? This should help to save sheets... My preveious response probably confused a few things. I so often use Create ICC-RGB that I was thinking of that with respect to whether curves can be easily re-linearized for different papers. With that approach I've recently found that all the matte papers I've tried seem to be within linearization range for the monotone Eboni/Carbon-6 inkset curves I've made. For inksets that use color pigments in them, I think there is more variability in the print tones. The different pigment types appear to be absorbed differently by the papers. I've helped people with making QTR ICCs for the old UT7 inkset, for example, and I find the color consistency is the main problem with simply re-linearizing an old profile for a new paper. With QTR rip, Dario is correct, the ink limits often need changing. What I like to do there is use a relatively low default ink limit for the midtones and use Black Boost to optimize the dmax. Then there is also more portability among papers -- set the black boost based on a 21-step BO test and then see if the full curve is close. I always graph the results with Excel to see if the pre-linearization curve looks to be within range. Paul www.PaulRoark.com
2010-03-01 by guido02474
I have been using the provided Entrada profiles as is on Bamboo with great results... guy --- In QuadtoneRIP@yahoogroups.com, "mozar94" <sylvain@...> wrote:
> > Hi, > > I started printing on Hahnmühle Photo Rag, with P. Roark's profiles. Great results indeed. > Now, I would like to try on Hahnmühle Bamboo, and perhaps one baryta as well (Hahnmühle Fine Art Baryta or Photo Rag Baryta). > > To make the profile for those papers, is it worth starting the job from scratch or can one just linearize from the PhotoRag profile? This should help to save sheets... > > Thx >
2010-03-03 by Edson
Hi! I am not new in this group, but this is my first posting. I hope my question is not too far off the topic. I have decided to go from scratch with QTRand my question concerns whether I will be able to do it using ColorMunki. I know (from www.northlight-images.co.uk/article_pages/bw_printing/bw_print_colormunki.html) that I can use QTR-Create-ICC-RGB to create a profile to use with PS. But what I intend to do is to partition the inks in QTR, linearize the curve and print from QTR afterwards. Will I be able to read the printed inkseparation file that comes with QTR using ColorMunki? If not (probably because CM requires larger chevron-shaped patches), how can I produce an appropriate sized ink separation file in PS? I must add that I know that with Eye-One this problem would not arise. However, the choice of ColorMunki comes from a small budget :(. Thanks for any help that you may offer. Edson
2010-03-03 by Howard Shaw
You can use Colormunki's Photo Color Picker application to take LAB spot readings of the ink separation print or the 21-step wedge. The patches are big enough if you're careful. It's painfully laborious but the only way I've found. (If anyone does know a way to automate the process with the Colormunki I'd like to hear it. I'm still using my old 810 with X-Key and Excel for this - it's far quicker.) Howard Edson wrote: > Hi! > > I am not new in this group, but this is my first posting. I hope my question is not too far off the topic. > > I have decided to go from scratch with QTRand my question concerns whether I will be able to do it using ColorMunki. > > I know (from www.northlight-images.co.uk/article_pages/bw_printing/bw_print_colormunki.html) that I can use QTR-Create-ICC-RGB to create a profile to use with PS. But what I intend to do is to partition the inks in QTR, linearize the curve and print from QTR afterwards. Will I be able to read the printed inkseparation file that comes with QTR using ColorMunki? If not (probably because CM requires larger chevron-shaped patches), how can I produce an appropriate sized ink separation file in PS? > > I must add that I know that with Eye-One this problem would not arise. However, the choice of ColorMunki comes from a small budget :(. > > Thanks for any help that you may offer. > > Edson > > > > -- Howard Shaw glassman@... www.howardshaw.org
2010-03-03 by Howard Shaw
Actually that Northlight article you gave a link for is very helpful. It provides a 21 step wedge that you can scan-read in the Color Picker app. You could also make an ink separation file in the same chevron style - just use the same colors as in the original file. The article also shows you how to export the readings to excel! Howard Howard Shaw wrote: > You can use Colormunki's Photo Color Picker application to take LAB spot > readings of the ink separation print or the 21-step wedge. The patches > are big enough if you're careful. It's painfully laborious but the only > way I've found. > > (If anyone does know a way to automate the process with the Colormunki > I'd like to hear it. I'm still using my old 810 with X-Key and Excel for > this - it's far quicker.) > > Howard > > > Edson wrote: > > > Hi! > > > > I am not new in this group, but this is my first posting. I hope my question is not too far off the topic. > > > > I have decided to go from scratch with QTRand my question concerns whether I will be able to do it using ColorMunki. > > > > I know (from www.northlight-images.co.uk/article_pages/bw_printing/bw_print_colormunki.html) that I can use QTR-Create-ICC-RGB to create a profile to use with PS. But what I intend to do is to partition the inks in QTR, linearize the curve and print from QTR afterwards. Will I be able to read the printed inkseparation file that comes with QTR using ColorMunki? If not (probably because CM requires larger chevron-shaped patches), how can I produce an appropriate sized ink separation file in PS? > > > > I must add that I know that with Eye-One this problem would not arise. However, the choice of ColorMunki comes from a small budget :(. > > > > Thanks for any help that you may offer. > > > > Edson > > > > > > > > > > > -- Howard Shaw glassman@... www.howardshaw.org
2010-03-09 by Edson
Thanks, Howard. I´ve just ordered ColorMunki. Let´s see what I can accomplish with it. Edson --- In QuadtoneRIP@yahoogroups.com, Howard Shaw <glassman@...> wrote:
> > Actually that Northlight article you gave a link for is very helpful. It > provides a 21 step wedge that you can scan-read in the Color Picker app. > You could also make an ink separation file in the same chevron style - > just use the same colors as in the original file. The article also shows > you how to export the readings to excel! > > Howard > > Howard Shaw wrote: > > You can use Colormunki's Photo Color Picker application to take LAB spot > > readings of the ink separation print or the 21-step wedge. The patches > > are big enough if you're careful. It's painfully laborious but the only > > way I've found. > > > > (If anyone does know a way to automate the process with the Colormunki > > I'd like to hear it. I'm still using my old 810 with X-Key and Excel for > > this - it's far quicker.) > > > > Howard > > > > > > Edson wrote: > > > > > Hi! > > > > > > I am not new in this group, but this is my first posting. I hope my question is not too far off the topic. > > > > > > I have decided to go from scratch with QTRand my question concerns whether I will be able to do it using ColorMunki. > > > > > > I know (from www.northlight-images.co.uk/article_pages/bw_printing/bw_print_colormunki.html) that I can use QTR-Create-ICC-RGB to create a profile to use with PS. But what I intend to do is to partition the inks in QTR, linearize the curve and print from QTR afterwards. Will I be able to read the printed inkseparation file that comes with QTR using ColorMunki? If not (probably because CM requires larger chevron-shaped patches), how can I produce an appropriate sized ink separation file in PS? > > > > > > I must add that I know that with Eye-One this problem would not arise. However, the choice of ColorMunki comes from a small budget :(. > > > > > > Thanks for any help that you may offer. > > > > > > Edson > > > > > > > > > > > > > > > > > > > > > -- > Howard Shaw > glassman@... > www.howardshaw.org >