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From: olson@vixvax.mgi.com (Thor Olson)
Newsgroups: sci.optics,sci.physics,comp.graphics
Subject: Spectrophotometers
Message-ID: <1991May22.092634.984@vixvax.mgi.com>
Date: 22 May 91 14:26:34 GMT
Article-I.D.: vixvax.1991May22.092634.984
Organization: Management Graphics, Inc.
Lines: 29


In our lab we would like to become better equipped to measure
the visible spectral response of photographic film, filters, and
other computer graphics related materials.  Currently, the graphic
arts world specifies color by densitometer readings.  These provide 
a three point weighted sample of the spectrum.

I would like to examine the spectrum with a much finer sample interval,
say 1-2 nm.  What recommendations for spectrophotometers can you
make?  I am interested in what you think makes a good one in terms
of accuracy, resolution, repeatability and cost, of course, but 
also the ease of use, flexibility with samples and light sources,
speed of operation, ability to connect with my computer, etc.

Different applications will certainly be looking for
different things in such an instrument.  I have found it difficult 
to find this type of information for equipment I know must exist.
Post to this group, or e-mail to me and I will gather and collate
the responses. 

+-------------------------------------------------------------
|  Thor Olson, Film Recorder Czar  |                          |
|  Management Graphics Inc         |  E-mail:  olson@mgi.com  |
|  1401 E 79 St                    |   Voice: +1 612/851-6108 | 
|  Minneapolis MN 55425 USA        |     Fax: +1 612/854-6913 |
+-------------------------------------------------------------

"Everyone can perform magic, everyone can reach his goal, 
if he can think, wait, and fast."  -Siddhartha to Kamala