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Digital BW, The Print

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Message

RE: [Digital BW] MIS Full Spectrum Partitioned RGB Quad Workflow

2002-02-18 by Alessandro Pardi

Jeff, 
here are the values I modifed in the red curve. Other values (and other
curves) are unchanged:
 
%      orig. modified
-----------------------------
95%    95    92
90%    91    85
80%    76    73
75%    68    65
70%    60    59
 
I printed on Epson Archival Matte, following the instructions you provided.
If anyone else wants to try this, remember to let the print sit for at least
12 hours before judging.
 
Alessandro Pardi

-----Original Message-----
From: jrandall1149 [mailto:jrandall@...]
Sent: martedì 12 febbraio 2002 23.24
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Subject: Re: [Digital BW] MIS Full Spectrum Partitioned RGB Quad Workflow


Alessandro:

I am glad the workflow worked so well for you!

Did you change any other curve values (other than Red 80% from 65 to 
67)?  Please let me know so I can test your changes with my printer.  
I have noticed that my printer "drifts" slightly from day to day.  
Also as you pointed out, there appear to be slight variations among 
printers.

Thanks.

Jeff Randall

Group:

The workflow and curves for PhotoShop (.acv) and curves for Picture 
Windows (.cc) are posted in __Files> Inksets, reviews and techniques> 
MIS FS> 1160 Partitioned Workflow__  of this forum.  

The curves are still draft and I will update them after I get more 
feedback.


--- In DigitalBlackandWhiteThePrint@y..., Alessandro Pardi 
<alessandro.pardi@i...> wrote:
> After a while,
>  
> I can happily report that I get great prints with this workflow, 
using a PC,
> an Epson 1160 with the Epson driver and EAM paper.
> I had to tweak the curves a bit, making the red (darkest gray) 
curve a bit
> steeper in the 80%-95% range, because the step-wedge print hadn't a 
very
> good separation in that area, but this may well be due to different 
printers
> samples. After that, my 1160 is able to brilliantly(1) print the 
Tyler's
> zees image, completely dotless, and with no apparent banding.
> I compared the step-wedge I printed with the Woolf's workflow, and 
there is
> a clear advantage with Randall's curves: no dots in the highlights 
(vs.
> visible, though absolutely acceptable, dots in the 5% with Woolf), 
no
> banding (vs. banding from 60% upwards), and even a deeper 100% 
black.
>  
> Please note that this report refers to the old FS inks: not the new
> reformulated inks, and not the FS neutral inks (so curves will 
probably need
> further tweaking for these sets).
> If anyone is interested, I can post the modified curves (or simply 
the
> values I changed: e.g.,  move 80% from 65 to 69).
>  
> Alessandro Pardi
>  
> (1) This means that I am able to see a Z in every square, although 
in some
> squares this is not so clear as in others.
> 
> -----Original Message-----
> From: jrandall1149 [mailto:jrandall@c...]
> Sent: Monday, January 21, 2002 02:53
> To: DigitalBlackandWhiteThePrint@y...
> Subject: [Digital BW] MIS Full Spectrum Partitioned RGB Quad 
Workflow
> 
> 
> I have developed a MIS Full Spectrum Partitioned RGB Quad Workflow 
> for Windows PCs,Epson 1160 Printer & Driver on EAM.  This might be 
> very useful for 1160 owners who want to try an RGB partitioned 
> workflow with the FS inks as an alternative to the Woolf lumped 
> grayscale workflow. The partitioned workflow takes full advantage 
of 
> the light, medium, and dark gray and black inks while the lumped 
> grayscale workflow combines the light, medium, and dark gray into 
one 
> mixed gray. 
> 
> The workflow and curves for PhotoShop (.acv) and Picture Windows 
> (.cc) are in ** Files> Inksets, reviews and techniques> MIS FS> 
1160 
> Partitioned Workflow ** of this forum.  The curves are draft and I 
> will update them soon.
> 
> Note:  You must be a member of this forum to download files.
> 
> Enjoy.
> 
> Jeff Randall
> 
> 
> 
> 
> Please visit the Group Homepage to check the Files, Bookmarks, 
Polls and
> other resources as they are often being updated. The page is at:
> 
> http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint
<http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint> 
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Please follow these basic guidelines:
- Include your full name with your message.
- Include the address of your website, if you have one.
- As threads develop, trim off excess portions of earlier messages to keep
them short.
- As the topic of a thread changes remember to change the subject header.
- Good manners are required at all time. No personal attacks or "flames."
- Complete your Yahoo profile.
- Before posting a question, search the message archives and the various
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