Re: (no subject)
Re: (no subject)
- Subject: Re: (no subject)
- From: Terry Wyse <email@hidden>
- Date: Wed, 07 May 2003 18:19:00 -0400
on 5/7/03 9:12 AM, email@hidden wrote:
>
>> I dare say you'll be hard pressed to get a good match
>
>> using the Photo Dye inks without considerable work.
>
>
>
This perplexes me a bit... on what grounds? I generally find the dyes easier
>
to match, and they have a somewhat lower "metamerism quotient" than the
>
UltraChromes as well, and a larger gamut in some areas, though not all areas.
Keep in mind that I'm referring strictly to some of the issues one would
encounter using one of these printers in an offset press proofing/matching
environment. I'm not even considering the needs of those using them for fine
art and photographic PRINTING, not proofing.
All I can say is that from my experience, I've never gotten as good a color
match with a 10000 Photo Dye unit as compared to a 10600 Ultrachrome unit
without the need for fairly extensive profile editing. IOW, I've never
gotten an "out-of-box" unedited profile that waws acceptable to the customer
using photo dye inks. With Ultrachrome inks I can almost routinouly get a
first profile/proof that a customer will sign off on. The photo dye yellow
in particular is especially troublesome due to the inherent hue shift as
compared to a typical "offset" (SWOP, GRACoL, whatever) yellow. I find that
the pure Ultrachrome yellow is nearly a perfect match for offset yellow
requiring almost zero correction within the profile(s).
I know that metamerism exists but I would argue that it should be a very low
priority/consideration in a pure proofing environment because, afterall, one
should be viewing these proofs under "standard" viewing conditions in the
first place. We can agree that once it leaves the print shop that the
customer viewing conditions are beyond our control, but we all know what the
viewing conditions SHOULD be and we can, rightfully so, make that case to
the customer. That's been the case long before inkjet proofing was even
thought of.
For those in the photo/fine art part of the world (I, mostly, am not),
metamerism would and should be a HUGE consideration when selecting a
particular printer because of the total lack of control of the viewing
environment. For proofing, I'd argue that proof consistency/stability is the
big issue along with, of course, color matching ability.
Besides the aformentioned issues I have with the photo dye inks (and dye
inks in general), the one thing I could not come to grips with is the
significant color shift of the inks within the first minutes after printing
and throughout the next 24-48 hours. Some ask "how long should I wait before
measuring my profile chart?". I would return with the question "well, when
would you like to be able to view it for critical color?". Try explaining to
an end-user that is intending to use this device for on-press proofs that
the color on this proof is a moving target. Doesn't go over very well.
[stepping down off the soapbox]
I'd love to stay and chat but The Wife is calling. Gotta go grill some
steaks.
Cheers,
Terry
--
__________________________________
WyseConsul
Color Management Consulting
v 704.843.0858
e email@hidden
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