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QTR-Quadtone RIP

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Message

Re: 21step.tif

2011-07-25 by Mel

Thanks Philippe, for the information.

Mel

--- In QuadtoneRIP@yahoogroups.com, Philippe Bachelier <philippe.bachelier@...> wrote:
>
> It's fine. Copy and paste these numbers in a .txt file and open it with QTR-Create-ICC to get a profile. Numbers look typical of a Matte paper with ABW mode.
> Epson printers seem to behave exactly in the same way with wether you select Archival Matte or Enhanced Matte.
> 
> Philippe 
> 
> Le 25 juil. 2011 à 15:00, Mel a écrit :
> 
> My original post omitted the printing resolution of 1440 Super.
> I have printed a further step wedge using a resolution of 2880 and record very little difference as shown below.
> 
> 100 1.60
> 95 1.42
> 90 1.28
> 85 1.13
> 80 1.02
> 75 0.95
> 70 0.86
> 65 0.78
> 60 0.70
> 55 0.63
> 50 0.55
> 45 0.48
> 40 0.42
> 35 0.37
> 30 0.32
> 25 0.28
> 20 0.23
> 15 0.19
> 10 0.15
> 5 0.11
> 0 0.08
> 
> Incidentally I have heard it said that Epson Enhanced Matte is the same as Epson Archival Matte - this is not so as the Enhanced Matte is noticably a brighter white than the Archival Matte, although giving the same densitometer reading of 0.08. The Enhanced Matte is also considerably more expensive, certainly here in the UK. 
> 
> I would still appreciate the forums opinion as to whether thes readings what I should be getting.
> 
> --- In QuadtoneRIP@yahoogroups.com, "Mel" <chilterns@> wrote:
> >
> > I have printed off the 21step.tif using the QTR Graphical Interface with the following hardware, ink, paper and preset.
> > 
> > Epson 1290
> > Epson Enhanced Matte
> > UT2 inks
> > Neutral preset
> > 
> > I have used the X-Rite 810 for reflective measurements on the Visual setting and have recorded the following readings from the step wedge:-
> > 
> > 100 1.59
> > 95 1.43
> > 90 1.30
> > 85 1.17
> > 80 1.05
> > 75 0.97
> > 70 0.88
> > 65 0.80
> > 60 0.72
> > 55 0.66
> > 50 0.59
> > 45 0.52
> > 40 0.46
> > 35 0.41
> > 30 0.36
> > 25 0.31
> > 20 0.26
> > 15 0.21
> > 10 0.17
> > 5 0.12
> > 0 0.08
> > 
> > The 810 is calibrated and gives the correct readings of 0.09 on the white patch and 1.79 on the black patch of the calibration plaque.
> > 
> > My question is, are the readings what I should expect of the paper/printer/ink/densitometer combination ?
> >
> 
> 
> 
> 
> 
> [Non-text portions of this message have been removed]
>

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