Re: Soft Proofing
Re: Soft Proofing
- Subject: Re: Soft Proofing
- From: "John" <email@hidden>
- Date: Wed, 26 Jun 2002 07:23:15 -0400
On 6/25/02 7:44 AM, Terry wrote:
>
I definitely respect the by-the-numbers approach but don't rule out the
>
possibility that given a decent monitor (not measured in $$ necessarily)
and
>
an excellent profiling solution that you can't achieve a very good soft
>
proof.
On 6/25/02 7:44 AM, Scott Olswold wrote:
>
Terry's right. Given good profiles (including the monitor profile) and a
>
decent CMM you should be able to get *very close* to home plate before
>
getting tagged out
>
...with that part of the approval process anymore (I have a couple clients
that
>
still do want a MatchPrint--old habits die hard).
What we see, and try to explain to our clients is that even after extensive
calibration, some jobs (images) can match nearly dead-on, yet another image
with a different color range doesn't even look close. Same settings, same
monitor. As close as you can get a monitor, or Epson, or an Approval, there
is always going to be that specific "red" or "brown" or "purple/ blue" or
"green" that will throw you the curve and make you realize the shortcomings
of the entire system.
The reality checks here are that R+G+B = pure white. Filtering out the RGB
light reflecting back from a piece of white paper, using C+M+Y should equal
pure black. Wrong. Inks cannot be made pure enough. That means that each
color is contaminated with a little of the other, and because of that the
gamut of reproducable colors is shrunken. Adding black fixes the blacks and
greys, but the only way to expand the gamut is with spot or touch colors. We
do a considerable amount of limited edition artwork reproductions requiring
5,6, 7, & up to 8 colors. Monitor, Epson, or Approval proofing would be a
joke. We don't even try.
So in reality... there is no home plate. Its gone, or was never there. You
just can't get there with todays technology. The shorfalls of the process of
offset printing (letterpress & gravure too), meet the shortfalls of RGB
light making phosphours glow on a piece of glass, both meet up with the
shortfalls of cheap inks sprayed from an array of nozzels. Good Luck.
Getting them all to the ballpark is quite an accomplishment in itself... and
that's why I keep up with this group.
John
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