Re: X-Rite EyeOne iSis with M1 option
Re: X-Rite EyeOne iSis with M1 option
- Subject: Re: X-Rite EyeOne iSis with M1 option
- From: Graeme Gill <email@hidden>
- Date: Mon, 11 Aug 2014 22:07:34 +1000
Roger Breton wrote:
> My skepticism with regards to software methods has to do with the little I
> know of tungsten halogen lamps : if the lamp emits little or nothing in the
> 360nm range, where OBs are typically excited, well?
It's not a matter of how little UV an incandescent lamp emits in absolute
terms, it's a matter of how much it emits relatively, since spectrometers
measure reflectance. i.e. the ratio of UV to blue light output of the lamp
is quite sufficient to trigger obvious FWA/OBE fluorescence in typical papers,
just not as much as a using a true D50 light source.
Graeme Gill.
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