QTR-Quadtone RIP

I'm printing from QTR Gui, I understand that with  PC it is not possible to print from Photoshop. 


This time I tried the curves for Velvet Fine Art with Premium Semigloss, Resolution 1440 super (w the Epson 2880) Speed unidirectional Printing Model Quad R2880. (what is a "printig model"? :-) There are no curves for the papers I'm using for practice (Premium Semigloss and Premium Glossy) so I am not sure I'm doing the "best" thing.

Now the prints were way better and I assume I made some crass mistake before that I could not repeat this time.

I experimented with curve blending and changing gamma and ink limit and  I think I begin to grasp the idea.
All I am doing is trial and error now. Is there a more systematic approach?

Thanks and Happy Holidays

Jorge









________________________________
From: Roy Harrington <roy@...>
To: QuadtoneRIP@yahoogroups.com
Sent: Tuesday, December 23, 2008 9:25:45 AM
Subject: Re: [QuadtoneRIP] Previous knowledge. Where can I find what I need?


I suspect that its something other than the curves.  What are you using
to print -- ie. PC/Mac, Photoshop?  OPtions selected?

Roy

On 12/22/08, jorge caruso <rabsanito@yahoo. com> wrote:
> Thanks Roy.
> About what I mean with  "not satisfactory" : my test prints with the raw curves produced grays where I expected blacks. But I'll try the other curves.
> The problem I addressed is my not understanding the process as described in the user's guide.  Perhaps it's above me :-(  Or I am just unprepared.
> Just as an example:
> In the old (wet) days I used to calibrate a batch of film and match it to a batch of paper I liked to use. I also practiced "visualization" , trying to match my perception of a scene to values of an abbreviated gray scale  I'd stored in my mind (no, not 10 Zones, just some :-) . The results were not exact, to be sincere, but I had the feeling that I understood what I was doing - what happened and why - in every step. I understood what happened if I changed anything. I could "fine tune" the process if I wished.and  also roughly predict the results.
>
> Now digital: My intention with QTR is to arrive to some kind of B&W softproofing. To be able to predict what will be printed related to what I see in my monitor. Eventually changing this or that parameter.
>
> Thanks for your patience :)
>
> Jorge
>
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>
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> ____________ _________ _________ __
> From: Roy Harrington <roy@harrington. com>
> To: QuadtoneRIP@ yahoogroups. com
> Sent: Monday, December 22, 2008 9:01:01 PM
> Subject: Re: [QuadtoneRIP] Previous knowledge. Where can I find what I need?
>
>
> The raw curves are unlinearized.   I don´t know what you mean as
> not satisfactory.  Try the other pk ones.  If you really need to do your
> own start with the existing ones.
>
> Roy
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