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1400 EB6 QTR Calibration Chart

1400 EB6 QTR Calibration Chart

2010-12-18 by Yan

I am doing the first steps of creating QTR curves using EPSON enhanced matte and EB6 with the 1400 printer.  As a measuring device, I am using the Colormunki.  I printed two "Calibration" charts (one at 100% and one at 35%).  Two things have me somewhat puzzled as to whether everything is as it should be:

1)  The calibration chart is printing (fictional) "LLK" and "LLLK gloss" step wedges for inks that are not present in the EPSON 1400

2)  Only those fictional "LLK" and "LLLK gloss" step wedges have a true paper white at the "0%" ink step.  All the other step wedges are varying degrees of gray at "0%".  The black ink in particular is already quite dark at "0%"

Is this normal and should I just proceed with using these charts to characterize my inks?  I know that these charts are only use to characterize the inks and not to do any linearization yet.  But I don't want to go on if something is amiss.  
My colormunki L values for the K ink in the "100%" calibrations chart are as follows:   (going from 0% to 55%)
25,22,20.2,19.2,17.7,16.7,16.3,15.9,15.7,15.8,15.8,16
Based on that I decided to print the second calibration chart at 35%

Re: [Digital BW] 1400 EB6 QTR Calibration Chart

2010-12-18 by Mike Finley

It might be helpful to know which version of QTR, and which operating 
sytem you are using.

On 18/12/2010 19:01, Yan wrote:
>
> I am doing the first steps of creating QTR curves using EPSON enhanced 
> matte and EB6 with the 1400 printer. As a measuring device, I am using 
> the Colormunki. I printed two "Calibration" charts (one at 100% and 
> one at 35%). Two things have me somewhat puzzled as to whether 
> everything is as it should be:
>
> 1) The calibration chart is printing (fictional) "LLK" and "LLLK 
> gloss" step wedges for inks that are not present in the EPSON 1400
>
> 2) Only those fictional "LLK" and "LLLK gloss" step wedges have a true 
> paper white at the "0%" ink step. All the other step wedges are 
> varying degrees of gray at "0%". The black ink in particular is 
> already quite dark at "0%"
>
> Is this normal and should I just proceed with using these charts to 
> characterize my inks? I know that these charts are only use to 
> characterize the inks and not to do any linearization yet. But I don't 
> want to go on if something is amiss.
> My colormunki L values for the K ink in the "100%" calibrations chart 
> are as follows: (going from 0% to 55%)
> 25,22,20.2,19.2,17.7,16.7,16.3,15.9,15.7,15.8,15.8,16
> Based on that I decided to print the second calibration chart at 35%
>

-- 
mike finley photography
fine art photography and website construction
http://mypicks.efikim.co.uk
http://www.mikefinley.co.uk
http://www.roguegenecollective.com/Mike_Finley.html
http://www.efikim.co.uk



[Non-text portions of this message have been removed]

Re: [Digital BW] 1400 EB6 QTR Calibration Chart

2010-12-18 by Yan

Thanks Mike,
OS is Windows XP SP3, QTR version 2.7.0.0

Also, my second calibration chart printed at "35%" does not seem any different from that printed at "100%"  
L values for K on the 35% calibration sheet are:
(going from 0% to 55%)  
24,21.2,19.2,18.3,16.9,16.1,15.9,15.7,15.7,15.5,15.9,16.2

similar to the L values of the K ink for the 100% calibration chart in my first post above.  shouldn't the values for the second calibration chart be such that there is decent seperation until the 100% step?  Instead I am reaching dmax around 35% again (just like in the 100% calibration chart)

Yan


  
--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Mike Finley <mike.finley@...> wrote:
Show quoted textHide quoted text
>
> It might be helpful to know which version of QTR, and which operating 
> sytem you are using.
> 
> On 18/12/2010 19:01, Yan wrote:
> >
> > I am doing the first steps of creating QTR curves using EPSON enhanced 
> > matte and EB6 with the 1400 printer. As a measuring device, I am using 
> > the Colormunki. I printed two "Calibration" charts (one at 100% and 
> > one at 35%). Two things have me somewhat puzzled as to whether 
> > everything is as it should be:
> >
> > 1) The calibration chart is printing (fictional) "LLK" and "LLLK 
> > gloss" step wedges for inks that are not present in the EPSON 1400
> >
> > 2) Only those fictional "LLK" and "LLLK gloss" step wedges have a true 
> > paper white at the "0%" ink step. All the other step wedges are 
> > varying degrees of gray at "0%". The black ink in particular is 
> > already quite dark at "0%"
> >
> > Is this normal and should I just proceed with using these charts to 
> > characterize my inks? I know that these charts are only use to 
> > characterize the inks and not to do any linearization yet. But I don't 
> > want to go on if something is amiss.
> > My colormunki L values for the K ink in the "100%" calibrations chart 
> > are as follows: (going from 0% to 55%)
> > 25,22,20.2,19.2,17.7,16.7,16.3,15.9,15.7,15.8,15.8,16
> > Based on that I decided to print the second calibration chart at 35%
> >
> 
> -- 
> mike finley photography
> fine art photography and website construction
> http://mypicks.efikim.co.uk
> http://www.mikefinley.co.uk
> http://www.roguegenecollective.com/Mike_Finley.html
> http://www.efikim.co.uk
> 
> 
> 
> [Non-text portions of this message have been removed]
>

Re: [Digital BW] 1400 EB6 QTR Calibration Chart

2010-12-18 by Mike Finley

On 18/12/2010 21:00, Yan wrote:
>
>
> Thanks Mike,
> OS is Windows XP SP3, QTR version 2.7.0.0
>
Thought it might be - there's a bug in that version, that affects 
printing the calibration charts. There's a patch at
http://www.quadtonerip.com/QTR2.7.0patch.zip

( details at http://tech.groups.yahoo.com/group/QuadtoneRIP/message/8656 )

-- 
mike finley photography
fine art photography and website construction
http://mypicks.efikim.co.uk
http://www.mikefinley.co.uk
http://www.roguegenecollective.com/Mike_Finley.html
http://www.efikim.co.uk



[Non-text portions of this message have been removed]

Re: [Digital BW] 1400 EB6 QTR Calibration Chart

2010-12-18 by Yan

thanks Mike!

I'll try again with those two files in my qtr bin file instead...  



--- In DigitalBlackandWhiteThePrint@yahoogroups.com, Mike Finley <mike.finley@...> wrote:
Show quoted textHide quoted text
>
> 
> On 18/12/2010 21:00, Yan wrote:
> >
> >
> > Thanks Mike,
> > OS is Windows XP SP3, QTR version 2.7.0.0
> >
> Thought it might be - there's a bug in that version, that affects 
> printing the calibration charts. There's a patch at
> http://www.quadtonerip.com/QTR2.7.0patch.zip
> 
> ( details at http://tech.groups.yahoo.com/group/QuadtoneRIP/message/8656 )
> 
> -- 
> mike finley photography
> fine art photography and website construction
> http://mypicks.efikim.co.uk
> http://www.mikefinley.co.uk
> http://www.roguegenecollective.com/Mike_Finley.html
> http://www.efikim.co.uk
> 
> 
> 
> [Non-text portions of this message have been removed]
>

Re: [Digital BW] 1400 EB6 QTR Calibration Chart

2010-12-20 by Yan

Thanks Mike,

Those two patched QTR files did the trick!  Strange that those patched files are from April and I just downloaded the bugged software a couple weeks ago...

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Yan" <ylucille@...> wrote:
Show quoted textHide quoted text
>
> 
> thanks Mike!
> 
> I'll try again with those two files in my qtr bin file instead...  
> 
> 
> 
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, Mike Finley <mike.finley@> wrote:
> >
> > 
> > On 18/12/2010 21:00, Yan wrote:
> > >
> > >
> > > Thanks Mike,
> > > OS is Windows XP SP3, QTR version 2.7.0.0
> > >
> > Thought it might be - there's a bug in that version, that affects 
> > printing the calibration charts. There's a patch at
> > http://www.quadtonerip.com/QTR2.7.0patch.zip
> > 
> > ( details at http://tech.groups.yahoo.com/group/QuadtoneRIP/message/8656 )
> > 
> > -- 
> > mike finley photography
> > fine art photography and website construction
> > http://mypicks.efikim.co.uk
> > http://www.mikefinley.co.uk
> > http://www.roguegenecollective.com/Mike_Finley.html
> > http://www.efikim.co.uk
> > 
> > 
> > 
> > [Non-text portions of this message have been removed]
> >
>

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