Re: Best dot-based proofers for SWOP
Re: Best dot-based proofers for SWOP
- Subject: Re: Best dot-based proofers for SWOP
- From: Kevin Muldoon <email@hidden>
- Date: Mon, 18 Dec 2006 17:04:03 -0500
Thanks to everyone for all responses!
This is quite eye opening on a number of levels. I believe that there
is a large difference between the color characteristics of AM dot
based proofing systems (Densitometric Proofers) and the behavior of
the SWOP presses these proofers were designed to emulate. As a long
time photo-retoucher for print advertising, it is startling to
discover that the 'gold-standards' for publication proofing are
anything but. I'd say we have been throwing curve balls at pressmen
for years and I marvel at their ability to make the catches they have
made.
Check out these published values for a SWOP certified Kodak Approval
XP running on the older X2222 media set.
DEN TVI L*a*b
Cyan 1.32 22.7 54.60, -36.10, -40.80
Magenta 1.43 24.0 50.00, 73.53, 0.89
Yellow 0.85 20.1 86.00, -6.11, 80.69
Black 1.63 22.5 16.9, 4.32, 1.54
Do any of these densities conform to the actual density values of a
SWOP press on #5 Ground-wood? Yellow seems very low. I see the *a
channel in black spiking upwards to a non-neutral 4.32. I do not have
a press-sheet in front of me, but something tells me this 'ain't
right', yet these are the numbers I must hit to have a SWOP certified
XP proofer.
My ultimate concern is using color management to create a custom CMYK
separation that is specific for an XP when the numbers and behavior
of that device does not appear to emulate SWOP standards. Obviously,
I would not want to separate my images into U.S. Web SWOP only to
watch them die little deaths on the XP. In fact, I separate them into
XP at the appropriate TAC, but it leads me to wonder if I'm now
throwing yet another curve ball at my pressman.
Yes! If I could use my inkjet as a contract proof, you'd bet I'd do it!
Thanks again for all comments.
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