Re: HP Dreamcolor Display: So far, so good.
Re: HP Dreamcolor Display: So far, so good.
- Subject: Re: HP Dreamcolor Display: So far, so good.
- From: Graeme Gill <email@hidden>
- Date: Mon, 29 Sep 2008 16:49:46 +1000
Marco Ugolini wrote:
Also, I remember hearing something from Bruce Fraser years ago about why a
"tuned" colorimeter is better at monitor profiling than a spectrophotometer.
I wish I had a better memory of the reasons why that is so. Can anyone help?
The explanation I was given by Danny Rich was that since spectrometers measure
things in bands and then weight the bands to give XYZ, this means that there
is a slight weighting error if the shape of the weighting curve and/or light
being measured is changing across a band. This is more likely with "peaky"
sources such as displays. Using finer bands (say 3.3nm on the EyeOnePro)
should reduce this source of error compared to the default 10nm bands.
Since colorimeters don't split things up into bands, they don't suffer
from this effect. Their XYZ filter shapes typical aren't as accurate as the
ones used in spectrometers though.
Graeme Gill.
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