Re: Spyder with newest Optical update
Re: Spyder with newest Optical update
- Subject: Re: Spyder with newest Optical update
- From: Kim Christiansen <email@hidden>
- Date: Mon, 29 Sep 2003 11:44:19 -0700
No I don't. But I did have a problem at a customer site with the Eye-One
display and Dell internal USB 2.0 ports. Once an inexpensive USB 1.1 card
was installed, the Eye-One worked like a champ. It seems that it was only on
Dell Precision Workstations with USB 2.0 on the Motherboard. I know of no
solution to date other than a PCI USB card.
It may have to do with USB 2.0 being so prevalent on motherboards on the PC
these days and having such a huge variety of chipsets to choose from there
may be some incompatibilities. Or it could be a problem with how Win 2K/XP
deals with on board USB. All of the other PCs I have used (incl. Dell) have
worked just fine with the motherboard USB ports. YMMV.
--
Kim Christiansen
The MacSmith
Studio Systems Consulting
www.themacsmith.cc
Tel 206-229-7725
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From: "Russell Proulx" <email@hidden>
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Reply-To: email@hidden
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Date: Sat, 27 Sep 2003 22:53:14 -0400
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To: email@hidden
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Subject: Spyder with newest Optical update
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I was just reading Colorvision's Spyder/Optical Guide (after downloading
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the most recent Optical update) and read the following:
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"It is preferred with Windows PC's that the Spyder be plugged into a
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separate PCI USB card rather than into USB ports built into the
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motherboard."
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Anyone know why the USB ports on a contemporary motherboard might be
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considered inappropriate for using hardware calibration devices?
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I also wonder about the Spyder's .30 black 'precision mode' target setting
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in the previous version of Optical? In Real World Color management there's
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a test for the black point outlined which suggests raising and lowering the
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black value of a selected area of a 100% black image in RGB and noting
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whether a difference can be seen when lightening 1 to 2% while using the
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monitor colorspace. With a blackpoint target of .30 I easily see a
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difference between 0 and 1 and continue to see a difference if I set my
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brightness even lower. Is .30 is too high? I'm using a Mitsubishi
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DPro2040u.
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With the most recent version of Optical I now note that there are NO longer
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any preset default settings for white or black points and when I select
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proceed the suggested defaults are .19 and 88. Is the visual target
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offered by Precal perhaps more accurate than any predefined measurement?
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Does this also suggest that the old 80 luminance was too low? The Precal
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suggested luminance range for the RGB color guns in 85-95. Is higher
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better? I'm not matching multiple monitors in a group workspace.
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So many questions ;-)
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Thanks for any answers.
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Russell Proulx
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Montreal, CANADA
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