Re: Sprintscan 120 issues/findings (comments welcomed)

["Ernst Dinkla" <E.Dinkla@xxxxxxxxx>]

----- Original Message -----
From: "Bill Agee" <billagee@redsilver.com>
To: <scan@leben.com>
Sent: Sunday, April 21, 2002 10:14 PM
Subject: Re: Sprintscan 120 issues/findings (comments welcomed)


> At 12:51 PM +0200 4/18/02, Ernst Dinkla wrote:
> >----- Original Message -----
> >From: "byard pidgeon" <bluedove@ccountry.net>
> >To: <scan@leben.com>
> >Sent: Thursday, April 18, 2002 3:37 AM
> >Subject: Re: Sprintscan 120 issues/findings (comments
welcomed)

> >Roland-MAN RFK3B 5 colour : Black: D 1.80, dotgain 13%, Cyan:
D
> >1.25, dotgain 10%, Magenta D 1.20, dotgain 14 %, Yellow D
1.40,
> >dotgain 9 %.
> >
> >Your 4 % is far too general applied and not enough to get it
> >right for that press.
> >You must also hope that they see your applied limitation and
> >correct it.

> My experience is that printers can't hold much better than a 2%
dot
> in the highlights...and lose it in the blacks for detail at
about
> 96%.  I think that is what Byard was referring to.  Yes, there
can be
> some blown out 0% specular highlights, but only within the
interior
> of the image.

I think it is worse than that and a good printshop knows it and
they alter the image to the press specs.
Nowaday usually with a ICM profile on top of the ink limitations.
The figures above for the press dotgain say that the image has to
be compressed far more than 4 % on the blacks. Usually the
highlight can be controlled with the profile. My point is that
the printshop's prepress people have to do their job good and
based on the press information they have. Modern printshops have
spectrometres and densitometres all over the place. It isn't the
job of the photographer or designer to apply the limitations
before the prepress people start their work.

Ernst



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