Re: Fluorescence
Re: Fluorescence
- Subject: Re: Fluorescence
- From: email@hidden
- Date: Thu, 22 Feb 2001 13:10:08 EST
In a message dated 2/21/01 8:26:25 PM, email@hidden writes:
>
I saw just the opposite today profiling a Fuji Pictrography 4000 and a
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Lighjet. The print off the Fuji looked quite cool in comparison to the
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Lighjet and the customer preferred all the qualities of the Lightjet print.
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I then got the UV filter for the Spectrolino and reprofiled the Fuji. The
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two prints were now VERY close indeed. So I suspect that this blueish look
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was due to the UV in the very white Fuji paper.
Photo process paper is nowhere near as light as inkjet paper, and typically
not brightened in the same manner. A photo printer can manage a black with
an L* value below 10 (while inkjet prints are often in a range from 20 to 30)
but the paper white is typically below 90 (compared to inkjet whites as high
as 96). So it is entirely possible that the paper could react to UV in an
inverse manner, especially on paper that develops to white from black,
instead of black from white.
C. David Tobie
Design Cooperative
email@hidden