Re: Sprintscan 120 issues/findings (comments welcomed)

[Bill Agee <billagee@xxxxxxxxxxxxx>]

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)
>
>
>>  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


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.

Bill Agee
-- 

b i l l  a g e e  s t u d i o
c a p i s t r a n o  b e a c h  c a l i f o r n i a

billagee@redsilver.com
http://www.redsilver.com

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