Digital BW, The Print

Renan,

Without detailed info it is hard to know.

One thing that does happen is when applying an RGB separation curve like
Paul's, is some "combing" or lose of the image's data. Generally this is not
a problem but if you already have combing in the image from strong
adjustments the addition of the separation curve can push it over the edge.

Check the Histogram of the image before and after you apply the curve. If
you have large gaps this may be your problem. The solution would be to work
in 16-bit mode rather than 8-bit mode where the extra data protects you form
this type of problem. Working in 16-bit is more cumbersome but I find it
sometimes necessary and some people do all of their work in that mode.

Martin Wesley

----- Original Message -----
From: "Renan Lopes" <renanlopes@...>
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Sent: Tuesday, March 12, 2002 5:43 PM
Subject: Re: [Digital BW] Gradient skies


> I use the Paul's curves and his workflow.What  I see is a soft gray scale
on my screen until I load the curves then I see some strips and
> these strips are printed on the paper.
> No Bill, I don't print a step wedge.
> Renan
>
> Can you post ALL of your settings. Every single one you use. It will be
helpful in diagnosing
> the trouble. I use the same setup and get NO
> banding or posterization at all.
>
> Jerry
>
> Bill Morse gravada:
>
> > Renan, have you printed a step wedge?  What do you see?
> >
> > Can you give more details about your set-up?
> >
> > Bill
>
>
>
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