[argyllcms] Re: Projector calibration
- From: Frédéric Mantegazza <frederic.mantegazza@xxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Sun, 13 Jan 2008 20:48:46 +0100
On dimanche 13 janvier 2008, Udo Lembke wrote:
> that sounds good. The resuts of my test are not so good. How do you
> prepare the instrument, to ignore reflective light?
> What distance is between the projector and the screen?
> What distance between the screen and the i1d2? What angle?
> How bright are the projector?
What do you mean by reflective light?
We put the projector at about 3.5m from the screen. The i1d2-screen
distance was about 50cm, with a 45° angle. The projector is an Optoma
EP739H. I'm not sure about the brightness; maybe 2500 lumen.
> On my test, i got amonst others to many light to the i2.
Strange. With, our first test, we had only 30cd/m². So we put the projector
closer. If we put the i1d2 towards the projector, then we had to use the
diffusor, at the same distance. But it varies very quickly. se the -R
option of dispcal to check if values sound good.
--
Frédéric
http://www.gbiloba.org
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