Re: Questions and grain


Gordon Pritchard <gordon_pritchard@...>
 

RE:
Thank you all for your constructive comments about my color settings.
Some of you mentioned "learning the numbers". I need to know what
this means. and is the subject covered in Dan's book Professional
Photoshop 6?>>
============================================

In the pre DTP days as well as the days before color monitors were
available, better printers would oftensupply creatives with swatch books of
all the combinations of CMYK -- effectively their printable gamut. The
creative could then simply look at the recipe for the color they wanted and
specify "by-the-numbers" It did not matter whether the color was in a scan
or a synthetic object (e.g. an Illustrator vector graphic) 50C35M --
whatever--was a universal language. In those days all art was basically
built in black and white -- specifying color by screen tint builds by the
numbers. The first time the creative would see color was on an overlay or
laminate proof. Prior to off press proofing the creative would only see
color on a press proof or when the actual job printed.
Scanner operators only recently have had color monitors at their scanner
station. The first time these guys would see color was when a proof was
pulled from the film that the scanner output. So all their color work had to
be done by the numbers.
It is a device dependent way of working in that a specified color would only
apply to that printer. In this workflow model, basically no color that is
seen prior to the contract proof was any particular validity. I.e. pretty
colors on and inkjet or on the monitor are ignored -- only the laminate
proof has validity.
With the advent of DTP and soft (monitor) proofing, many printers abandoned
the swatch books and instead told their customers that they warranted their
color as proofed by one of ther proofing media vendors (e.g. Imation, Fuji,
Dupont etc.) Specify your colors by the numbers and if you like how it
appears on the proof then they will "match" on press. This is still kinda
device dependent (ie must be Imation gamut) however you will theoretically
get the same color from every printer who says that they can match one
common proof media.


thx - gordo

Gordon Pritchard
Commercial Print Specialist
CreoScitex
Vancouver Canada
T: 604.451.2700 ext 2870
C: 604.351.2437
gordon_pritchard@creoscitex.com
http://www.creoscitex.com

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