Re: Measuring Optical Brightners
Re: Measuring Optical Brightners
- Subject: Re: Measuring Optical Brightners
- From: Roger Breton <email@hidden>
- Date: Fri, 27 May 2005 16:00:30 -0400
> Is there a list available somewhere of papers that do or don't use optical
> brighteners?
>
> For example a listing that might say whether Epson's Professional Semimatte or
> Enhanced Matte or Han. Photo Rag use optical brighteners?
>
> Nick
Most people simply observe the rule that as the value of b* increases
negatively, eg from -2 to 23 to -4 to -6 to -9 and so on, then that's a sure
sign that there is fluorescence involved.
Regards,
Roger Breton | Laval, Canada | email@hidden
http://pages.infinit.net/graxx
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