Re: press output looks pale and unsaturated
Re: press output looks pale and unsaturated
- Subject: Re: press output looks pale and unsaturated
- From: "Stephen Marsh" <email@hidden>
- Date: Thu, 24 Jan 2002 01:33:06 +1100
Gerhard writes:
>
I prepared CMYK files with embedded output profiles and delivered an
"overview" Chromaline proof with them. <
Most CMYK film/plate output does not use or care about embedded profiles,
the CMYK data is simply passed down to the RIP for unaltered output. Some
RIPs may apply a linerization curve to the data, but that's about the only
alteration of data in the traditional PostScript CMYK output workflow.
The embedded tag should not change things, but it does invite human or
software to use that profile to make a conversion. Just as not having a tag
can also have associated issues with the wrong profile being used to
describe the CMYK numbers in some cases. Traditionally the image is
throughput without any alteration to existing CMYK values, so it is hard to
know if anything has gone wrong in prepress.
Can you measure the film and or plates with a densitometer or get the files
from prepress? Can they supply any info?
>
The pictures in the catalogue now look pale and unsaturated. Files
with the same separation delivered to another printing company came out just
like intended. What could have gone wrong and how can I prevent such a
disaster in the future? <
How are the solids? Is it only the halftones or is everything weaker?
What was the arrangement with the printer? Was a press check performed? They
should have attempted to match the proof if it was realistic, and you say
other printers can...it should be within your rights for a reprint, future
discount or at least a good explanation.
Hope the above is factual and helpful,
Stephen Marsh.