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8. Where is my software serial number?
Your serial number will be either 17 or 18 digits long; depending on your
application. It is located on the inside of your box under the hardware device.
Please do not confuse this with the hardware serial number for your
hardware device(s).
9. Why don’t my monitors look the same after calibration?
Visual observation of two monitors sitting side-by-side will never appear to
match. Even if they are the same type, make and model, two displays will
have subtle differences that are readily discerned in side-by-side
comparison, but become negligible when each display is viewed separately.
Comparing a CRT monitor to an LCD monitor will be even less rewarding
because of the inherent differences in display technology. In a side-by-side
comparison between a CRT and an LCD, the LCD will always be perceived as
'brighter' and having 'higher contrast'. This is because the peak luminance of
an LCD is typically about twice that of a CRT, even when you calibrate both
monitors to have the same Gamma and White Point.
To compound the effect, the organic eye-brain colorimeter (aka human color
perception) causes one kind of difference to be perceived as if it were
another kind of difference. Even if two samples have the same color but
different luminance, they will be perceived as also different in color. Thus,
when you calibrate a CRT and an LCD to the same Gamma and White Point
and place the monitors next to each other, the fact that the LCD is twice as
bright will cause them to appear different in color even if an instrument
records identical chromaticities.
The human visual system has another powerful feature, referred to as
'adaptation'. For example, if you move from a room with incandescent
lighting to one that is lit with fluorescent tubes, you will initially perceive
white objects as having a bluish cast, and possibly brighter than they were.
However, after a few minutes, your visual system 'adapts' to the new
environment and your 'adapted' perception is that white objects are merely
white.
Visual adaptation allows us to use two different technologies, like CRT and
LCD, to view the same image file with similar perception. However, if you
place two different monitors side-by-side and view them simultaneously, the
visual system cannot adapt to both simultaneously. They will always appear
different (in color, luminance and contrast) due to that very sensitive
'comparison' function of human visual perception.
Therefore, a side-by-side comparison of two monitors is not a reasonable
metric for determining whether you can use each monitor individually and