Re: Colorsync-users Digest, Vol 9, Issue 67
Re: Colorsync-users Digest, Vol 9, Issue 67
- Subject: Re: Colorsync-users Digest, Vol 9, Issue 67
- From: Graeme Gill <email@hidden>
- Date: Sat, 28 Apr 2012 10:54:33 +1000
Axel Robert wrote:
> Why? Actually the fact is that the EyeOne Pro only does measure at sampling interval: 3.5nm. It
> is to far for good results.
>
> Instead of this, these tool is able to reproduce and analyze wavelength each +/- 0.5 nm
> according to the ISO 3664 who needs to be < 1.0 for Mvis and < 1.5 for Muv.
>
> Thus, the EyeOne Pro displays results which appear exact but in fact are not.
>
> It is called GL optic.
Hmm. The GL optic has a quoted FWHM of 12 nm, which seems not much better than the
i1pro in 3.3 nm mode, where I see a measured FWHM of about 10nm at 650nm.
(See <http://www.argyllcms.com/doc/laserdisp.jpg>)
In normal 10nm mode, yes the i1pro seems to have a HWHM of 20nm.
Graeme Gill.
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