If you are using analog (VGA or DVI-A) video then this is not recommended because there can be variances between the analog video signal levels on different machines that can impact the calibration.
It is possible if you are using digital video, but you should confirm that the display is set to the correct mode. (Some settings are video-input and video-resolution specific.)
Confirm that the Gamma Selection is set to "PRG Programmable" and the Color Control is set to "P Programmable" by using the On Screen Display menu.
The ICC/ColorSync file generated on one machine should be located and manually copied to the other machine and associated with the display so that color managed applications are aware of the color characteristics of the display monitor.
For Delta-E values of less than 2 there is almost certainly no need to recalibrate. For values higher than 3 it is important to understand what the cause is and whether its significant.
The calibration and adjustment process has inherent variability due to many factors such as the repeatability of color sensor measurements, and changes within the display as it is adjusted. The basic accuracy and repeatability specifications for most sensors are +/- 0.002 or higher for CIE xy, and +/- 2% for luminance. These variances alone can give rise to Delta-E values of up to 2 or 3.
When a specific Intensity value is being used for the calibration, the Delta-E value is comprised of the luminance and color differences. Differences in color are much more critical than a difference in relative luminance. Look at the results of the calibration shown in the Information window to determine if the high Delta-E value is caused mainly by a shift in color or in luminance.
High Delta-E values can also occur if a specific Intensity value is being used for the calibration and the display is not capable of achieving the specified Intensity value. The calibration will always aim to achieve the specified White Point, even if the Intensity value could not be reached. If the display can not be calibrated to achieve the specified Intensity value modify the value accordingly.
In some situations, the display Intensity will drift slightly for several minutes after it is adjusted. Since the measured value used to calculate the final Delta-E result is taken up to one or two minutes after the display was adjusted, a higher Delta-E value may be shown, even though the calibration process achieved the specified Target values during the calibration process. Selecting the Extended luminance stabilization time option in the Preferences can be used to try and minimize this effect.
The manual adjustments will be reset by the calibration process. We recommend that
you avoid manually adjusting the monitor after calibration for this reason.
If you feel it is necessary to tweak the display after calibration, create a new
Target file based from the measurements of the display after it has been manually
adjusted. Then the monitor will be automatically calibrated to that particular set
of characteristics the next time its calibrated. Use the Custom White Point tool
to measure and set the white point and Intensity values.
On Windows 2000 and XP:
\Documents and Settings\All Users\Documents\NEC DISPLAY SOLUTIONS\SpectraViewII\Targets\
On Windows Vista:
\Users\Public\Public Documents\NEC DISPLAY SOLUTIONS\SpectraViewII\Targets\
On Mac OS:
/Users//Library/Application Support/NEC Display Solutions/SpectraViewII/Targets
\Documents and Settings\All Users\Documents\NEC DISPLAY SOLUTIONS\SpectraViewII\Config.dat
\Documents and Settings\All Users\Documents\NEC DISPLAY SOLUTIONS\SpectraViewII\Preferences.dat
\Users\Public\Public Documents\NEC DISPLAY SOLUTIONS\SpectraViewII\Config.dat
\Users\Public\Public Documents\NEC DISPLAY SOLUTIONS\SpectraViewII\Preferences.dat
On Windows 2000, XP and Vista :\WINDOWS\system32\spool\drivers\color
On Mac OS with the "Shared by all users of this computer" setting for the storage selected:/Library/ColorSync/Profiles
On Mac OS with the "Per user of this computer" setting for the storage selected:/Users//Library/ColorSync/Profiles
SpectraView will automatically install the device drivers for the iOne Display color sensor. However it is assumed that if you are using a third-party sensor, then the software that came with it will have already installed the drivers for the device. If you did not install the third-party software then the device drivers will need to be manually installed.
Drivers for all sensors are available on the SpectraViewII CD-ROM or in the \Program Files\NEC Display Solutions\SpectraViewII\Drivers folder after installing SpectraView (on 64 bit versions of Windows the folder location is \Program Files (x86)\NEC Display Solutions\SpectraViewII\Drivers).
In general a spectrophotometer provides more accurate color measurements than a "generic" colorimeter does when measuring most displays. However a colorimeter can be specifically calibrated against a lab grade instrument to match a particular type of display, and thus provide extremely accurate color measurements. This approach was taken with the new custom-calibrated X-Rite iOne Display V2 included in the Display Calibration Bundle.
A spectrophotometer can suffer from drift and low luminance noise issues that can cause problems—specifically when measuring and calibrating near black. In general colorimeters provide superior low luminance measurements than spectrophotometer.
SpectraView can be purchased in several different configurations:
1. Product bundle, with display monitor, color sensor, and SpectraViewII software. (The model name will be the model name of the display monitor, with an "-SV" suffix.) 2. Color sensor and software kit (color sensor and SpectraViewII software). A compatible display monitor must be purchased separately. 3. SpectraViewII software only. A compatible display monitor and color sensor must be purchased separately. This is useful if you already own a supported color sensor and display. Be sure to check that your color sensor model is supported by SpectraView. 4. Color sensor only. A compatible display monitor and SpectraViewII software must be purchased separately. This is useful if you already own compatible display monitor and a copy of the SpectraViewII software and would like to upgrade or replace only the color sensor.
Yes. The SpectraViewII calibration system is developed by NEC and optionally includes an NEC branded X-Rite iOne Display V2 color sensor. SpectraViewII can be used with any supported display model and is sold both as a complete kit bundled with a display, and as an add-on product.
In Europe SpectraView Profiler includes a display monitor with hood, custom calibration software developed by basICColor, and each display is individually certified. It is not possible to purchase and use the SpectraView Profiler software with a non-SpectraView Profiler display.
NEC Display Solutions.
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