Re: Archival Inks for CMYK Proofing

[CDTobie@aol.com]

In a message dated 10/23/00 7:57:41 PM, brian-lehen@home.com writes:

>I feel the exact opposite to be the truth. For proofing offset you need
>
>inks as close as possible to SWOP/press CMYK inks. READ: VERY SMALL gamut.
>
>Epson (and other dye based inks) have huge gamut and/or deep/dark saturated
>
>look. In order to simulate offset inks, the driver/RIP has to introduce
>
>"white areas"/dithering to "lighten" epson's way-too-saturated inks. This
>
>results in coarse/grainy look, especially on 4 colour/big droplet size
>
>E3000.. Ideal offset simulation inks should be somewhere in the 60% C,
>80%
>
>to 90% M, 60% Y, of the Epson inks (subjectively).

That was why Epson introduced 6 color printing with the 5000: to offer 
smoother proofing than the 3000. Of course the output of Offset presses are 
less smooth than either due to the halftone dots... The fixed-proofer goal of 
exactly matching the gamut of the output device in the proofing device is 
brittle and problematic. Attaining good dithering and accurate color matching 
from a larger gamut system has numerous advantages, low cost being high on 
the list.

C. David Tobie
Design Cooperative
CDTobie@designcoop.com
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