Digital BW, The Print

----- Original Message -----
From: "frankg_photo" <frank@...>
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Sent: Thursday, October 03, 2002 12:56 PM
Subject: [Digital BW] Re: posterisation - how to defeat


> Here i am replying to my own post :-)
>
> After trying all day, I found tips posted by Bob ? to my first pleas
> in August, which suddenly seemed decipherable and produced an
> immediate improvement.
>
> 1.make 2x duplcate layers of the background
> 2.place one of Paul's curves above the first duplicate & set the Fill
> Opacity to around 70% & keep layer type Normal
> 3. on the 2nd duplicate layer, change the type to Overlay & the
> opacity to around 80%
>
> Dont ask me why or how - but this has made an immediate improvement
> to my prints.
> Can anyone delve deeper and/or finesse this procedure ?

Frank,

I can suggest another technique. Use two curve adjustment layers on top of
the image, each with different RGB separation curves and adjust the opacity
of the top layer. I have used this to get intermediate hues with the curves
and it can also sometimes help with flat spots.

A more desperate measure is to identify and select the tonal range that is
the problem and increase the contrast slightly.

The other think to look at are your scans. Did you make fairly straight
forward scans or did you do major adjustments in the scanning software? I
sometimes find that if I take an image too far at the scanning stage it is
difficult to shift it back.


Martin Wesley

http://www.borderless-photos.de/guests.html




> --- In DigitalBlackandWhiteThePrint@y..., "frankg_photo" <frank@f...>
> wrote:
> > Even with using 16 bit scans and doing the major curve/level adj
> > before switching to 8 bit, I still have a problem with
> posterisation
> > in areas of my prints.
> >
> > I have tried the same neg/scan on several paper samples I had
> (Royal
> > Renaissance (Photo Rag), Eclipse Satine Soft & the Bright, EAM) &
> > it's pretty much the same on all.
> >
> > I am using MIS sepia>neutral inkset in an 1160 with Paul's curves.
> >
> > In the past some have reported duplicating the background layer
> > and/or combining 2 curve adjustment layers and/or adjusing the
> > opacities - this is a muddle for me.
> >
> > can anyone clarify this workflow or suggest another way I can try
> and
> > beat the posterization blues
> >
> > thanks
> > Frankg
>
>
>
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