Re: Monitor calibration software/hardware
Re: Monitor calibration software/hardware
- Subject: Re: Monitor calibration software/hardware
- From: Andrew Rodney <email@hidden>
- Date: Thu, 20 Sep 2007 10:18:24 -0600
- Thread-topic: Monitor calibration software/hardware
On 9/20/07 9:03 AM, "Derrick Brown" wrote:
> So according to your unbiased opinion Andrew that would make this
> functionality a total waste of time in the following products:
Trending, isn't validation. Some of the products use the same instruments to
provide a deltaE of differences over time. That's useful but it tells us
nothing about the so called accuracy of the profile process or the
instrument itself. Only a reference grade instrument of known qualities can
do that or tell us the so called accuracy of another lesser instrument.
Trending tells us the device has drifted a fixed amount over a period of
time. We of course assume the instrument is repeatable, something some here
have questioned with respect to one product of which I will not comment
since after using the device for one article, it went back into its box
where it sits.
> Dump the chip Andrew, not all users get their instruments for free
> (im not mentioning any names, am I?)
And they should be even more concerned with marketing hype provided by those
who produce or sell the products! At least one person here apparently did
pay hard earned money on the product discussed and placed it into a drawer
much like me. That he paid money for the instrument somehow makes his
experience more or less viable? But it would be interesting if you'd tell us
how many free copies of hardware and software you seed to authors,
industries experts and how you feel that affects their perception of your
products, since you bring up this point.
> To support David Tobies comment further, we have users of all the
> popular instruments out there and the most reliability comes from the
> DTP94 users. Spyder 2 Pro users, as a whole, have a much higher
> degree of unit repeatability than they are given credit for.
If you have some useful matrixes based on sound testing practices we can all
examine, by all means provide them (for all instruments you support).
Otherwise, you're simply blowing lukewarm air into the orifices of this
group. Since you provide a software product that supports multiple devices,
by all means give us your data, hopefully backed up using that expensive
spectroradiometer. Otherwise I find this more, unsupported marking speak
some vendors of color management products excel at on this and other lists
(I'm not mentioning any names, am I?).
> Im confident you will not, you will likely just distort the subject
> further.
Typical form I'd expect of you. No, its YOU that needs to prove the points
you've made above, otherwise, many of us will have to continue to formulate
opinions about what you say based on marketing, not scientifically conducted
testing or evidence to back up your claims.
The only thing I've claimed so far is that using the same instrument to test
itself is not useful. You on the other hand have made statements about the
consistency of an unknown sample of devices. So I suggest YOU back up this
claim with some data. I'm happy to look it over, as I'm sure are others on
this list. If what you say is true, backed up with empirical, well
documented and proper testing, I'll be the first to applaud the effort and
agree with you. But that hasn't been your MO in the past.
The recent and lengthy discussions here on metamerism was quite useful and
provided a total lack of marketing BS. It would be useful if some of the
regular posters and lurkers would comment on this topic. And if possible
Derrick, try to keep both the geek speak and marketing hype under wraps. Few
here are going to be influenced to buy your product based on what anyone on
this particular list says.
Andrew Rodney
Author "Color Management for Photographers"
http://www.digitaldog.net/
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