Re: "Printer Color Management"
Re: "Printer Color Management"
- Subject: Re: "Printer Color Management"
- From: Marco Ugolini <email@hidden>
- Date: Thu, 20 Apr 2006 22:27:18 -0700
In a message dated 4/20/06 3:17 PM, Ed Foster wrote:
> In a message dated 4/20/06 5:05:31 PM, email@hidden writes:
>
>> The new terminology in CS2 ("Let Printer Determine Colors") is a welcome
>> correction of that ambiguity.
>
> So true - yet there was a time in the not too distant past where you could
> apply your custom profiles and rendering intents at the driver level.
Hi Ed.
Yes, there was a way to enter profiles in older Epson drivers, but I was
never able to achieve the expected results, no matter how many different
combinations I tried. I asked others, and they also thought, like I did,
that the driver was useless for that purpose.
> Now at least, "custom" color management is in the hands of the professional
> application where it should be (IMHO) and not at the control of Epson (in this
> case).
>
> Or is it? Take a look at this in the Epson driver dialogue:
>
> Print with Preview> set for "Let Photoshop Determine Colors", etc., etc, >
> Print - in the resulting Epson driver third selection box down, choose
> "ColorSync" and as you mentioned in an earlier post, you have no choice it
> defaults to "Standard". Be sure in "Printer Color Management", NCA is
> selected and now look at the "Summary" expanding "ColorSync" and there it
> reads "Color Conversion" Standard and "Profile" ?????
I don't see that in my Epson 2200 driver, but (with NCA selected and my
conversion occurring in the Print with Preview dialog box) my Summary reads:
Color Conversion: Standard
Profile: System Default
Driver may perform custom color correction: true
What? Driver *may* perform custom color correction? After I instruct it to
apply "No Color Adjustment"? I can only hope that this was a programming
oversight by the Epson team (you know, not dotting all the "i"s and crossing
all the "t"s), and that it doesn't correspond to anything actually happening
within the driver. Or so one hopes...
> After loading Epson's drivers for the 7800, I tried Bill Atkinson's superb
> profiles and had great results from Photoshop. However, with InDesign, color
> was off, white point was incorrect, and tonal transitions were horrible to say
> the least. Identical print settings in PS and ID and same driver settings
> were producing drastically different results.
I have found that in InDesign, contrary to what the application wants you to
believe, one must *always* click the . Failure to do so causes "double color
management", with horrible results: the driver does its own conversion *on
top* of the other conversion selected in the Color Management tab.
Caveat user!
> In trouble shooting the problem, I discovered the problem by expanding the
> driver Summary>ColorSync box. In Photoshop, for whatever reason, the profile
> listed in Epson driver Summary>ColorSync>Profile was "Generic RGB Profile" yet
> when printing from ID, the Epson driver Summary>ColorSync>Profile was showing
> as Epson Standard Profile. So, something was definately being applied,
> despite selecting NCA.
>
> The solution was to change the default device profile via the Colorsync
> utility to "Generic RGB" from "Epson Standard" and now prints from both
> applications are identical.
That still doesn't sound right to me. The system-level default profile
should have no bearing on the application-level conversion, which is meant
to supersede it.
> To me it appears that NCA is not really NCA. Now I wonder if the gamut of
> what we really could produce is being "choked" somehow by the mandatory
> inclusion of a profile, perhaps unwanted, somewhere in the stream that we have
> no control over.
I will be curious to read what others say.
Best of luck, and regards.
--------------
Marco Ugolini
Mill Valley, CA
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