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Digital BW, The Print

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Re: [Digital BW] VMS curves question and problem - Paul, others?

2002-12-02 by Julian Thomas

I've not used Pauls curves, but assuming that his curves are sound and this
needs fine tuning - Build a modification grey curve whilst you are in
greyscale. If you are using Paul's wedge, the numbers for each square are
there, type the right numbers into the input/output box in curves. Then
apply that curve, convert to rgb and try again.

Julian
----- Original Message -----
From: "Murray Zaharia" <zaharia@...>
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Sent: Monday, December 02, 2002 9:10 PM
Subject: [Digital BW] VMS curves question and problem - Paul, others?


>
> RE: [Digital BW] More on 'posterization again'
>
> This is going back to the above thread.
>
>  I have printed out the 100 step greyscale wedge (Alex Pettit from
> http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/files/Image%2
> 0processing/ ) on my 1270 loaded with a new set of VMS inks in a CIS
> onto Epson Archival matte paper. I had areas of my prints with no detail
> that is clearly there on my file. It was in areas from approx 50 to 100
> in the info pallet. This is confirmed on my printout of the above
> mentioned greyscale wedge. There is NO visual differentiation between
> any individual squares between 54 and 99 (info pallet) on the greyscale
> wedge that I printed out. I also scanned the greyscale wedge printout
> and checked it out with the dropper (3x3 sample) in Photoshop as well
> and it confirms the same.
>
>  What is going on here? I can't see anyone being happy with this lack of
> detail and the posterized look that results. Is there a possibility that
> the curves are corrupted or something? Can the curves be adjusted to fix
> this? I just cannot see that Paul would have been happy with these
> results in the first place, therefore something must not be right.
>
> My settings in Photoshop 7:
>
> Working Space: Adobe RGB
> Gray: Gray Gamma 2.2
> Print Space: Printer Color Management
>
> I am following to the letter Paul's instructions for his curves.
>
> I am using an Epson 1270 with the proper 1270 curve (vm70-NCA-w1) and
> printing on Epson Archival Matte paper.
>
> Driver settings:
> Matte Paper - Heavyweight
> 1440 dpi
> High Quality Halftoning
> Microweave on
> High Speed off
> No Color Adjustment
>
> I have perfect nozzle checks as well.
>
>
>
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