QTR-Quadtone RIP

Hi Randy
Thank you once again for the valuable information. I did use the 2  
profiles you sent on Ep Gloss and both the warm and cool prints came  
out really well. I need to now go back and develop the curves by using  
the test strips on the epson paper, hence my previous question. Randy  
how do you measure the DMax directly, I use the eye-one pro and the  
measuring software gives the Lab value which i believe is directly  
proportional to the density. Is there a quick and dirty way of ding  
this? Unfortunately I cannot buy the spray where I live and I believe  
most courier companies dont carry this stuff by air. So I am stuck  
with gloss differential or use glop throughout. Thanks again
dileepa
On 26-Feb-09, at 7:33 AM, Randy Rancier wrote:

> Hey Dileepa, I've found that with glossy paper (my only experience  
> so far is with ILFord
> Gold Fibre Silk IGFS) that I did get higher dmax with the LM and LC  
> inks than the M and C
> inks on the glossy; dmax of over 2.30 with the LM. The Eboni M ink  
> shouldn't be used
> with glossy unless you are trying for a 100% carbon print on glossy  
> that is somewhat more
> neutral than the warm inks in the M and LM positions; and only with  
> a generous dose of
> glop and then a couple coats of Premier Print Shied after it dries  
> overnight; you got my
> profile for that.
>
> Be sure to take readings for less than the 100% patch as many of the  
> inks once it reaches
> it's dmax at a particular ink limit starts to decline with a heavier  
> ink load. Also you will
> notice that many of the inks will have a significantly higher dmax  
> after a spray of the print
> shield; see by taking a reading before the spray and then after;  
> doesn't seem to effect
> tones much other than the very dark ones, which is good.
>
> By the way the print that has impressed me the most so far has been  
> on the IGFS 100%
> Carbon with the Eboni and glop and the Print Shield. I know it's  
> warmer than I'd like and
> grainy looking and I hate having to spray, but this has produced  
> what I consider the
> "richest" looking print yet with the system, achieving a dmax of  
> over 2.50 on IGFS,
> primarily due to the spray of Print Shield. Also, the shadows have  
> much better separation
> and more detail.
>
> Next week or so I'm going to be experimenting with replacing the  
> cool PK and LK in the C
> and LC positions with HP PK in the C position and a dilute of HP PK  
> with glop in the LC
> positions; see post on the Digital B&W forum, subject: HP PK BO. i'm  
> going to be testing
> using Cranes Mueso Silver Rag, as Paul Roark has reported geting a  
> dmax in the 2.60's
> and close to 2.70 using with the HP PK and Silver Rag. I haven't  
> been impressed with the
> shadows using the cool PK inks from the UT-14 on glossy and hoping  
> this change will be
> a positive one.
>
> If the HP PK doesn't work I will probably go back to the profile  
> using the Eboni and glop
> and spray; I would probably experiment with using a more dilute  
> Eboni for the midtones
> and highlights to try to reduce the graininess and smooth out the  
> tones a bit.
>
> God, I'm tired of all of this experimenting and am looking forward  
> to settling on a
> workflow soon and getting back to the more serious work of working  
> on my portfolio.
>
> Hope this helps,
> Randy
>
> Dileepa Wijesundera <dileepa@...> wrote:
> >
> > Hi Randy
> > Is this something you experienced or is it just my system,
> > On the inkseparation.psd print when the densities are measured is it
> > possible to get a higher density for 100%LM patch compared to K.?
> > The order I get on Epson Prem Gloss/UT14 inkset on a 1400 printer is
> > LM,C,M,LM,K
> > Is this possible or am I doing something wrong? Many thanks
> > dileepa
>
>
> 



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