Re: Barco vs Eizo
Re: Barco vs Eizo
- Subject: Re: Barco vs Eizo
- From: Marco Ugolini <email@hidden>
- Date: Mon, 12 Sep 2005 22:02:54 -0700
In a message dated Mon, 12 Sep 2005 23:15:45, Roberto Michelena wrote:
>> If the device can be trusted to calibrate and profile
>> the monitor (measuring a wide range of colors in
>> order to do so) can it not be trusted to provide
>> reasonable results as a measuring device?
>
> Nope, because that doesn't say anything about the device's correlation
> with an 'absolute' standard.
>
> It's like saying "I used my grandpa's wooden ruler to draw a line of
> exactly 30mm ; to make sure I measured again with the same ruler, and
> it indeed measures 30mm" ; well, now somebody comes with a newer (and
> more precise) metal ruler and tells you it's 30.5mm ; your grandpa's
> wooden ruler had swollen with age and humidity, or it just had been
> built to looser standards that were the state of technology back then.
> Without something better to check against, you'd never have known.
Are we engaging here in that favorite pastime of so many on this list, i.e.,
splitting our thinning and graying hairs?
If grandpa's ruler is off by 0.5mm out of 30.5mm, fine, it's off by 1.6%.
That is only important if your tolerance is LOWER than 1.6%.
True, you don't know how far off you are until you measure, but let's be
practical: how many can afford a spectroradiometer? Not even Bruce! (Though
he may have easier access to one than many -- oh, the envy...)
The best most of us can do is buy the best spectrophotometer we can afford,
get it checked regularly, be happy if what we get is definitely better than
what we used to get without it or with a lower-quality model (and so very
often it is!), and stop obsessing about absolute perfection.
And let's not forget that the eyes are still pretty good tools to detect an
instrument that is behaving badly: if your eyes tell you that your color
results are going south, then it may be time to give the old spectro a
thorough checkup, or even the heave-ho. Even spectros don't last forever,
after all.
--------------
Marco Ugolini
Mill Valley, CA
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