Re: Sprintscan 120 issues/findings (comments welcomed)

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

----- 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)


> I wonder if all the problems people are having is because
they're expecting
> to be able to print 0 at one end and 255 at the other???
>
> Most presses need about 4 percent at either end, and I've found
the same to
> be true with inkjet and other printers.
> Does it remap? Sure. Does it give a good print? Sure.

With a custom profile for an RGB driven inkjet paper you'll get
quite far.
With a custom profile and inklimit settings for a CMYK RIP + an
inkjet you'll get quite far.
With a good printshop that has a similar colour management
workflow and sending them an RGB TIFF
with 0 to 255 in it one should expect the same. It is up to them
to do that work, they know their presses, papers and inks and the
dotgain that comes with it.

Your 4 % will either be overruled by the printshops settings or
comes on top of that. The last means you loose 8 % over the
entire range possible. Sure, the printed image will not show any
blocking up in black or 'no dot' spots in white but it will be
compressed one way or another in that case.

I have a colour book here with CMYK samples so one can check what
colour is printed by the actual CMYK figures. The publisher was
so wise to add the dotgain numbers + densities in the colofon.
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.

Ernst



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