On 16 Apr 2011, at 6:02 AM, douvidl wrote:
> Robert.
> I have followed Mr. Diallo workflow for custom curves and am at the point where he says to "drop the linearization numbers into the QTR linear app". It is magic speak. How do you drop numbers into an app and once its there how do you make it work.
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> Apparently the app linearizes the data so that it is smooth from black to white. But once you have done that, how do you get the data in the "curve" one has set up in an earlier step.
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> I feel like i am close but far away and Mr. Diallo's description of steps need some work.
>
> So, any help would be appreciated.
>
> David
>
> --- In QuadtoneRIP@yahoogroups.com, "Robert" <rkamand@...> wrote:
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>> hi dave,
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>> I was in your boat about a month ago so i know that it can be frustrating at times, but once you start to figure it out it will make more sense. I am definitely still new at this, as i have only created one set of curves for canson baryta (one at 1440 and one at 2880), but i will try and help you out.
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>> 1. Untagged means that photoshop will not apply a profile to the document. When you open this document photoshop will ask what you want to do and you should leave as is(don't color manage)
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>> 2. I use 8.5x11 paper in landscape view and i will leave the size as is.
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>> *I hope that someone will comment on this because i don't know how much of a difference, if at all it would make if you resize the document. I know they are 360dpi which is supposed to be the ideal setting for epson printers so i just left them as is.
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>> 3. your gonna want to use the same paper for the targets that you are creating a curve for. I usually use separate sheets but i guess you could print more than one on the same sheet.
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>> *I bought a box of 8.5x11 paper and all the targets, test prints and notes will remain inside that box. That way it's always handy to go back to and reference.
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>> 4. I am using a datacolor spectro as well and it will work. You may want to read Building qtr profiles with macs_v4 (you'll find it in the files/docs on the qtr group page). It's geared towards building curves using hextone grayscale inks and reading the ink separation 8 target, but he uses a datacolor spectro and i found his settings in the software to work.
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>> *I used this set of instructions, and Mr. Diallo's paper to come up with a working method.
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>> p.s. i started with level 3 in Diallo's paper which is creating a custom curve and it made a difference, but then i set the ink limits and crossovers, which is the last level (level 4 in his paper) i saw a big enough difference that i started over since this must precede curve building.
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>> Good luck and i hope that i helped.
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>> --- In QuadtoneRIP@yahoogroups.com, "douvidl" <dhm67@> wrote:
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>>> I am following the tutorial from Mr. Diallo and am trying to do my custom curve. Right now I am on step five of the custom curve workflow and have some questions. Probably very obvious to you all experts but dumbfounding to this newbie.
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>>> 1. What means "untagged"
>>> 2. How large a target do you print?
>>> 3. should the target be printed on the paper that is being profiled? I assume I can print 4 targets at the same time.
>>> 4. I am using the data color spyder 3 print spectro thingy and program. will that work?
>>>
>>> I am enthralled with the QT Rip. and need to make sure my curves are curvey and wonderful. So, any advice would be very appreciated.
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>>> I am doing Canson Infinity Platine paper. Next is Ilford Gold Fibre Silk.
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>>> Thanks
>>> David Mendelow dhm67@
>>>
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